Implement async series data loading with background processing
- Add loading status fields to AnimeSeries model
- Create BackgroundLoaderService for async task processing
- Update POST /api/anime/add to return 202 Accepted immediately
- Add GET /api/anime/{key}/loading-status endpoint
- Integrate background loader with startup/shutdown lifecycle
- Create database migration script for loading status fields
- Add unit tests for BackgroundLoaderService (10 tests, all passing)
- Update AnimeSeriesService.create() to accept loading status fields
Architecture follows clean separation with no code duplication:
- BackgroundLoader orchestrates, doesn't reimplement
- Reuses existing AnimeService, NFOService, WebSocket patterns
- Database-backed status survives restarts
This commit is contained in:
@@ -6,28 +6,28 @@ This document tracks all notable changes to the Aniworld project.
|
||||
|
||||
### What This Document Contains
|
||||
|
||||
- **Version History**: All released versions with dates
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- **Added Features**: New functionality in each release
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- **Changed Features**: Modifications to existing features
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||||
- **Deprecated Features**: Features marked for removal
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||||
- **Removed Features**: Features removed from the codebase
|
||||
- **Fixed Bugs**: Bug fixes with issue references
|
||||
- **Security Fixes**: Security-related changes
|
||||
- **Breaking Changes**: Changes requiring user action
|
||||
- **Version History**: All released versions with dates
|
||||
- **Added Features**: New functionality in each release
|
||||
- **Changed Features**: Modifications to existing features
|
||||
- **Deprecated Features**: Features marked for removal
|
||||
- **Removed Features**: Features removed from the codebase
|
||||
- **Fixed Bugs**: Bug fixes with issue references
|
||||
- **Security Fixes**: Security-related changes
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||||
- **Breaking Changes**: Changes requiring user action
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|
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### What This Document Does NOT Contain
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||||
|
||||
- Internal refactoring details (unless user-facing)
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- Commit-level changes
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- Work-in-progress features
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- Roadmap or planned features
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- Internal refactoring details (unless user-facing)
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||||
- Commit-level changes
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- Work-in-progress features
|
||||
- Roadmap or planned features
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||||
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### Target Audience
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- All users and stakeholders
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- Operators planning upgrades
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- Developers tracking changes
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- Support personnel
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||||
- All users and stakeholders
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- Operators planning upgrades
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- Developers tracking changes
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- Support personnel
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---
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@@ -42,14 +42,14 @@ This changelog follows [Keep a Changelog](https://keepachangelog.com/) principle
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### Fixed
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- **Series Visibility**: Fixed issue where series added to the database weren't appearing in the API/UI
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- Series are now loaded from database into SeriesApp's in-memory cache on startup
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- Added `_load_series_from_db()` call after initial database sync in FastAPI lifespan
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- Series are now loaded from database into SeriesApp's in-memory cache on startup
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- Added `_load_series_from_db()` call after initial database sync in FastAPI lifespan
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- **Episode Tracking**: Fixed missing episodes not being saved to database when adding new series
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- Missing episodes are now persisted to the `episodes` table after the targeted scan
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- Episodes are properly synced during rescan operations (added/removed based on filesystem state)
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- Missing episodes are now persisted to the `episodes` table after the targeted scan
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- Episodes are properly synced during rescan operations (added/removed based on filesystem state)
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- **Database Synchronization**: Improved data consistency between database and in-memory cache
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- Rescan process properly updates episodes: adds new missing episodes, removes downloaded ones
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- All series operations now maintain database and cache synchronization
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- Rescan process properly updates episodes: adds new missing episodes, removes downloaded ones
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- All series operations now maintain database and cache synchronization
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### Technical Details
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@@ -66,27 +66,27 @@ This changelog follows [Keep a Changelog](https://keepachangelog.com/) principle
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### Added
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- New features
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- New features
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### Changed
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- Changes to existing functionality
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- Changes to existing functionality
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### Deprecated
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- Features that will be removed in future versions
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- Features that will be removed in future versions
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### Removed
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- Features removed in this release
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- Features removed in this release
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### Fixed
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- Bug fixes
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- Bug fixes
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### Security
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- Security-related fixes
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- Security-related fixes
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```
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---
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@@ -97,30 +97,30 @@ _Changes that are in development but not yet released._
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### Added
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- **Enhanced Anime Add Flow**: Automatic database persistence, targeted episode scanning, and folder creation with sanitized names
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- Filesystem utility module (`src/server/utils/filesystem.py`) with `sanitize_folder_name()`, `is_safe_path()`, and `create_safe_folder()` functions
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- `Serie.sanitized_folder` property for generating filesystem-safe folder names from display names
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- `SerieScanner.scan_single_series()` method for targeted scanning of individual anime without full library rescan
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- Add series API response now includes `missing_episodes` list and `total_missing` count
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- Database transaction support with `@transactional` decorator and `atomic()` context manager
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- Transaction propagation modes (REQUIRED, REQUIRES_NEW, NESTED) for fine-grained control
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- Savepoint support for nested transactions with partial rollback capability
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- `TransactionManager` helper class for manual transaction control
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- Bulk operations: `bulk_mark_downloaded`, `bulk_delete`, `clear_all` for batch processing
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- `rotate_session` atomic operation for secure session rotation
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- Transaction utilities: `is_session_in_transaction`, `get_session_transaction_depth`
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- `get_transactional_session` for sessions without auto-commit
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- **Enhanced Anime Add Flow**: Automatic database persistence, targeted episode scanning, and folder creation with sanitized names
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- Filesystem utility module (`src/server/utils/filesystem.py`) with `sanitize_folder_name()`, `is_safe_path()`, and `create_safe_folder()` functions
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- `Serie.sanitized_folder` property for generating filesystem-safe folder names from display names
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- `SerieScanner.scan_single_series()` method for targeted scanning of individual anime without full library rescan
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- Add series API response now includes `missing_episodes` list and `total_missing` count
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- Database transaction support with `@transactional` decorator and `atomic()` context manager
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- Transaction propagation modes (REQUIRED, REQUIRES_NEW, NESTED) for fine-grained control
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- Savepoint support for nested transactions with partial rollback capability
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- `TransactionManager` helper class for manual transaction control
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- Bulk operations: `bulk_mark_downloaded`, `bulk_delete`, `clear_all` for batch processing
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- `rotate_session` atomic operation for secure session rotation
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- Transaction utilities: `is_session_in_transaction`, `get_session_transaction_depth`
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- `get_transactional_session` for sessions without auto-commit
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### Changed
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- `QueueRepository.save_item()` now uses atomic transactions for data consistency
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- `QueueRepository.clear_all()` now uses atomic transactions for all-or-nothing behavior
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- Service layer documentation updated to reflect transaction-aware design
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- `QueueRepository.save_item()` now uses atomic transactions for data consistency
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- `QueueRepository.clear_all()` now uses atomic transactions for all-or-nothing behavior
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- Service layer documentation updated to reflect transaction-aware design
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### Fixed
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- Scan status indicator now correctly shows running state after page reload during active scan
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- Improved reliability of process status updates in the UI header
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- Scan status indicator now correctly shows running state after page reload during active scan
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- Improved reliability of process status updates in the UI header
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---
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@@ -10,9 +10,9 @@ This document describes the database schema, models, and data layer of the Aniwo
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### Technology
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- **Database Engine**: SQLite 3 (default), PostgreSQL supported
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- **ORM**: SQLAlchemy 2.0 with async support (aiosqlite)
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- **Location**: `data/aniworld.db` (configurable via `DATABASE_URL`)
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- **Database Engine**: SQLite 3 (default), PostgreSQL supported
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- **ORM**: SQLAlchemy 2.0 with async support (aiosqlite)
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- **Location**: `data/aniworld.db` (configurable via `DATABASE_URL`)
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Source: [src/config/settings.py](../src/config/settings.py#L53-L55)
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@@ -73,15 +73,16 @@ Stores anime series metadata.
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**Identifier Convention:**
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- `key` is the **primary identifier** for all operations (e.g., `"attack-on-titan"`)
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- `folder` is **metadata only** for filesystem operations (e.g., `"Attack on Titan (2013)"`)
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- `id` is used only for database relationships
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- `key` is the **primary identifier** for all operations (e.g., `"attack-on-titan"`)
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- `folder` is **metadata only** for filesystem operations (e.g., `"Attack on Titan (2013)"`)
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- `id` is used only for database relationships
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Source: [src/server/database/models.py](../src/server/database/models.py#L23-L87)
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### 3.2 episodes
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Stores **missing episodes** that need to be downloaded. Episodes are automatically managed during scans:
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- New missing episodes are added to the database
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- Episodes that are no longer missing (files now exist) are removed from the database
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- When an episode is downloaded, it can be marked with `is_downloaded=True` or removed from tracking
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@@ -100,7 +101,7 @@ Stores **missing episodes** that need to be downloaded. Episodes are automatical
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**Foreign Key:**
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- `series_id` -> `anime_series.id` (ON DELETE CASCADE)
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- `series_id` -> `anime_series.id` (ON DELETE CASCADE)
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Source: [src/server/database/models.py](../src/server/database/models.py#L122-L181)
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@@ -132,7 +133,7 @@ Stores download queue items with status tracking.
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**Foreign Key:**
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- `series_id` -> `anime_series.id` (ON DELETE CASCADE)
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- `series_id` -> `anime_series.id` (ON DELETE CASCADE)
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Source: [src/server/database/models.py](../src/server/database/models.py#L200-L300)
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@@ -363,7 +364,7 @@ Source: [src/server/database/models.py](../src/server/database/models.py#L89-L11
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### Cascade Rules
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- Deleting `anime_series` deletes all related `episodes` and `download_queue_item`
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- Deleting `anime_series` deletes all related `episodes` and `download_queue_item`
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---
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860
docs/architecture/async_loading_architecture.md
Normal file
860
docs/architecture/async_loading_architecture.md
Normal file
@@ -0,0 +1,860 @@
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# Asynchronous Series Data Loading Architecture
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**Version:** 1.0
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**Date:** 2026-01-18
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**Status:** Planning Phase
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## Table of Contents
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||||
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1. [Executive Summary](#executive-summary)
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2. [Current State Analysis](#current-state-analysis)
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3. [Reusable Components](#reusable-components)
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4. [Proposed Architecture](#proposed-architecture)
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5. [Data Flow](#data-flow)
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6. [Database Schema Changes](#database-schema-changes)
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7. [API Specifications](#api-specifications)
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8. [Error Handling Strategy](#error-handling-strategy)
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9. [Integration Points](#integration-points)
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10. [Code Reuse Strategy](#code-reuse-strategy)
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11. [Implementation Plan](#implementation-plan)
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||||
---
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## Executive Summary
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This document describes the architecture for implementing asynchronous series data loading with background processing. The goal is to allow users to add series immediately while metadata (episodes, NFO files, logos, images) loads asynchronously in the background, improving UX by not blocking during time-consuming operations.
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**Key Principles:**
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- **No Code Duplication**: Reuse existing services and methods
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- **Clean Separation**: New `BackgroundLoaderService` orchestrates existing components
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- **Progressive Enhancement**: Add async loading without breaking existing functionality
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- **Existing Patterns**: Follow current WebSocket, service, and database patterns
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---
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## Current State Analysis
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### Existing Services and Components
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#### 1. **AnimeService** (`src/server/services/anime_service.py`)
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- **Purpose**: Web layer wrapper around `SeriesApp`
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- **Key Methods**:
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- `add_series_to_db(serie, db)`: Adds series to database with episodes
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- Event handlers for download/scan status
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- Progress tracking integration
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- **Database Integration**: Uses `AnimeSeriesService` and `EpisodeService`
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- **Reusability**: ✅ Can be reused for database operations
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#### 2. **SeriesApp** (`src/core/SeriesApp.py`)
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- **Purpose**: Core domain logic for series management
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- **Key Functionality**:
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- Series scanning and episode detection
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- Download management with progress tracking
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- Event-based status updates
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- **NFO Service**: Has `NFOService` instance for metadata generation
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- **Reusability**: ✅ Event system can be used for background tasks
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#### 3. **NFOService** (`src/core/services/nfo_service.py`)
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- **Purpose**: Create and manage tvshow.nfo files
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- **Key Methods**:
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- `create_tvshow_nfo(serie_name, serie_folder, year, ...)`: Full NFO creation with images
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- `check_nfo_exists(serie_folder)`: Check if NFO exists
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- `update_tvshow_nfo(...)`: Update existing NFO
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- **Image Downloads**: Handles poster, logo, fanart downloads
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- **Reusability**: ✅ Direct reuse for NFO and image loading
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|
||||
#### 4. **WebSocketService** (`src/server/services/websocket_service.py`)
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|
||||
- **Purpose**: Real-time communication with clients
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||||
- **Features**:
|
||||
- Connection management with room-based messaging
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||||
- Broadcast to all or specific rooms
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||||
- Personal messaging
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- **Message Format**: JSON with `type` field and payload
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||||
- **Reusability**: ✅ Existing broadcast methods can be used
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|
||||
#### 5. **Database Models** (`src/server/database/models.py`)
|
||||
|
||||
**Current AnimeSeries Model Fields:**
|
||||
|
||||
```python
|
||||
- id: int (PK, autoincrement)
|
||||
- key: str (unique, indexed) - PRIMARY IDENTIFIER
|
||||
- name: str (indexed)
|
||||
- site: str
|
||||
- folder: str - METADATA ONLY
|
||||
- year: Optional[int]
|
||||
- has_nfo: bool (default False)
|
||||
- nfo_created_at: Optional[datetime]
|
||||
- nfo_updated_at: Optional[datetime]
|
||||
- tmdb_id: Optional[int]
|
||||
- tvdb_id: Optional[int]
|
||||
- episodes: relationship
|
||||
- download_items: relationship
|
||||
```
|
||||
|
||||
**Fields to Add:**
|
||||
|
||||
```python
|
||||
- loading_status: str - "pending", "loading", "completed", "failed"
|
||||
- episodes_loaded: bool - Whether episodes have been scanned
|
||||
- logo_loaded: bool - Whether logo image exists
|
||||
- images_loaded: bool - Whether poster/fanart exist
|
||||
- loading_started_at: Optional[datetime]
|
||||
- loading_completed_at: Optional[datetime]
|
||||
- loading_error: Optional[str]
|
||||
```
|
||||
|
||||
#### 6. **Current API Pattern** (`src/server/api/anime.py`)
|
||||
|
||||
**Current `/api/anime/add` endpoint:**
|
||||
|
||||
```python
|
||||
@router.post("/add")
|
||||
async def add_series(...):
|
||||
# 1. Validate link and extract key
|
||||
# 2. Fetch year from provider
|
||||
# 3. Create sanitized folder name
|
||||
# 4. Save to database
|
||||
# 5. Create folder on disk
|
||||
# 6. Trigger targeted scan for episodes
|
||||
# 7. Return complete result
|
||||
```
|
||||
|
||||
**Issues with Current Approach:**
|
||||
|
||||
- ❌ Blocks until scan completes (can take 10-30 seconds)
|
||||
- ❌ User must wait before seeing series in UI
|
||||
- ❌ NFO/images not created automatically
|
||||
- ❌ No background processing on startup for incomplete series
|
||||
|
||||
---
|
||||
|
||||
## Reusable Components
|
||||
|
||||
### Components That Will Be Reused (No Duplication)
|
||||
|
||||
#### 1. **Episode Loading**
|
||||
|
||||
**Existing Method:** `AnimeService.rescan()` or `SeriesApp.scan()`
|
||||
|
||||
- Already handles episode detection and database sync
|
||||
- **Reuse Strategy**: Call `anime_service.rescan()` for specific series key
|
||||
|
||||
#### 2. **NFO Generation**
|
||||
|
||||
**Existing Method:** `NFOService.create_tvshow_nfo()`
|
||||
|
||||
- Already downloads poster, logo, fanart
|
||||
- **Reuse Strategy**: Direct call via `SeriesApp.nfo_service.create_tvshow_nfo()`
|
||||
|
||||
#### 3. **Database Operations**
|
||||
|
||||
**Existing Services:** `AnimeSeriesService`, `EpisodeService`
|
||||
|
||||
- CRUD operations for series and episodes
|
||||
- **Reuse Strategy**: Use existing service methods for status updates
|
||||
|
||||
#### 4. **WebSocket Broadcasting**
|
||||
|
||||
**Existing Methods:** `WebSocketService.broadcast()`, `broadcast_to_room()`
|
||||
|
||||
- **Reuse Strategy**: Create new broadcast method `broadcast_loading_status()` following existing pattern
|
||||
|
||||
#### 5. **Progress Tracking**
|
||||
|
||||
**Existing Service:** `ProgressService`
|
||||
|
||||
- **Reuse Strategy**: May integrate for UI progress bars (optional)
|
||||
|
||||
### Components That Need Creation
|
||||
|
||||
#### 1. **BackgroundLoaderService**
|
||||
|
||||
**Purpose**: Orchestrate async loading tasks
|
||||
|
||||
- **What it does**: Queue management, task scheduling, status tracking
|
||||
- **What it doesn't do**: Actual loading (delegates to existing services)
|
||||
|
||||
#### 2. **Loading Status Models**
|
||||
|
||||
**Purpose**: Type-safe status tracking
|
||||
|
||||
- Enums for loading status
|
||||
- Data classes for loading tasks
|
||||
|
||||
---
|
||||
|
||||
## Proposed Architecture
|
||||
|
||||
### Component Diagram
|
||||
|
||||
```
|
||||
┌─────────────────────────────────────────────────────────────┐
|
||||
│ FastAPI Application │
|
||||
└─────────────────────────────────────────────────────────────┘
|
||||
│
|
||||
▼
|
||||
┌─────────────────────────────────────────────────────────────┐
|
||||
│ API Layer (anime.py) │
|
||||
│ POST /api/anime/add (202 Accepted - immediate return) │
|
||||
│ GET /api/anime/{key}/loading-status │
|
||||
└─────────────────────────────────────────────────────────────┘
|
||||
│
|
||||
▼
|
||||
┌─────────────────────────────────────────────────────────────┐
|
||||
│ BackgroundLoaderService (NEW) │
|
||||
│ - add_series_loading_task(key) │
|
||||
│ - check_missing_data(key) │
|
||||
│ - _worker() [background task queue consumer] │
|
||||
│ - _load_series_data(task) [orchestrator] │
|
||||
└─────────────────────────────────────────────────────────────┘
|
||||
│ │ │ │
|
||||
▼ ▼ ▼ ▼
|
||||
┌──────────────┐ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐
|
||||
│ AnimeService │ │ NFOService │ │ Database │ │ WebSocket │
|
||||
│ (EXISTING) │ │ (EXISTING) │ │ Service │ │ Service │
|
||||
│ │ │ │ │ (EXISTING) │ │ (EXISTING) │
|
||||
│ - rescan() │ │ - create_nfo│ │ - update_ │ │ - broadcast_ │
|
||||
│ │ │ - download │ │ status │ │ loading │
|
||||
└──────────────┘ └──────────────┘ └──────────────┘ └──────────────┘
|
||||
```
|
||||
|
||||
### Sequence Diagram: Add Series Flow
|
||||
|
||||
```
|
||||
User → API: POST /api/anime/add {"link": "...", "name": "..."}
|
||||
API → Database: Create AnimeSeries (loading_status="pending")
|
||||
API → BackgroundLoader: add_series_loading_task(key)
|
||||
API → User: 202 Accepted {"key": "...", "status": "loading"}
|
||||
API → WebSocket: broadcast_loading_status("pending")
|
||||
|
||||
[Background Worker Task]
|
||||
BackgroundLoader → BackgroundLoader: _worker() picks up task
|
||||
BackgroundLoader → Database: check_missing_data(key)
|
||||
BackgroundLoader → WebSocket: broadcast("loading_episodes")
|
||||
BackgroundLoader → AnimeService: rescan(key) [REUSE EXISTING]
|
||||
AnimeService → Database: Update episodes
|
||||
BackgroundLoader → Database: Update episodes_loaded=True
|
||||
|
||||
BackgroundLoader → WebSocket: broadcast("loading_nfo")
|
||||
BackgroundLoader → NFOService: create_tvshow_nfo() [REUSE EXISTING]
|
||||
NFOService → TMDB API: Fetch metadata
|
||||
NFOService → Filesystem: Download poster/logo/fanart
|
||||
BackgroundLoader → Database: Update nfo_loaded=True, logo_loaded=True, images_loaded=True
|
||||
|
||||
BackgroundLoader → Database: Update loading_status="completed"
|
||||
BackgroundLoader → WebSocket: broadcast("completed")
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Data Flow
|
||||
|
||||
### Immediate Series Addition (Synchronous)
|
||||
|
||||
1. User submits series link and name
|
||||
2. API validates input, extracts key
|
||||
3. API fetches year from provider (quick operation)
|
||||
4. API creates database record with `loading_status="pending"`
|
||||
5. API creates folder on disk
|
||||
6. API queues background loading task
|
||||
7. API returns 202 Accepted immediately
|
||||
8. WebSocket broadcasts initial status
|
||||
|
||||
### Background Data Loading (Asynchronous)
|
||||
|
||||
1. Worker picks up task from queue
|
||||
2. Worker checks what data is missing
|
||||
3. For each missing data type:
|
||||
- Update status and broadcast via WebSocket
|
||||
- Call existing service (episodes/NFO/images)
|
||||
- Update database flags
|
||||
4. Mark as completed and broadcast final status
|
||||
|
||||
---
|
||||
|
||||
## Database Schema Changes
|
||||
|
||||
### Migration: Add Loading Status Fields
|
||||
|
||||
**File:** `migrations/add_loading_status_fields.py`
|
||||
|
||||
```python
|
||||
"""Add loading status fields to anime_series table.
|
||||
|
||||
Revision ID: 001_async_loading
|
||||
Create Date: 2026-01-18
|
||||
"""
|
||||
|
||||
from alembic import op
|
||||
import sqlalchemy as sa
|
||||
from sqlalchemy import Boolean, DateTime, String
|
||||
|
||||
def upgrade():
|
||||
# Add new columns
|
||||
op.add_column('anime_series',
|
||||
sa.Column('loading_status', String(50), nullable=False,
|
||||
server_default='completed')
|
||||
)
|
||||
op.add_column('anime_series',
|
||||
sa.Column('episodes_loaded', Boolean, nullable=False,
|
||||
server_default='1')
|
||||
)
|
||||
op.add_column('anime_series',
|
||||
sa.Column('logo_loaded', Boolean, nullable=False,
|
||||
server_default='0')
|
||||
)
|
||||
op.add_column('anime_series',
|
||||
sa.Column('images_loaded', Boolean, nullable=False,
|
||||
server_default='0')
|
||||
)
|
||||
op.add_column('anime_series',
|
||||
sa.Column('loading_started_at', DateTime(timezone=True),
|
||||
nullable=True)
|
||||
)
|
||||
op.add_column('anime_series',
|
||||
sa.Column('loading_completed_at', DateTime(timezone=True),
|
||||
nullable=True)
|
||||
)
|
||||
op.add_column('anime_series',
|
||||
sa.Column('loading_error', String(1000), nullable=True)
|
||||
)
|
||||
|
||||
# Set existing series as completed since they were added synchronously
|
||||
op.execute(
|
||||
"UPDATE anime_series SET loading_status = 'completed', "
|
||||
"episodes_loaded = 1 WHERE loading_status = 'completed'"
|
||||
)
|
||||
|
||||
def downgrade():
|
||||
op.drop_column('anime_series', 'loading_error')
|
||||
op.drop_column('anime_series', 'loading_completed_at')
|
||||
op.drop_column('anime_series', 'loading_started_at')
|
||||
op.drop_column('anime_series', 'images_loaded')
|
||||
op.drop_column('anime_series', 'logo_loaded')
|
||||
op.drop_column('anime_series', 'episodes_loaded')
|
||||
op.drop_column('anime_series', 'loading_status')
|
||||
```
|
||||
|
||||
### Updated AnimeSeries Model
|
||||
|
||||
```python
|
||||
class AnimeSeries(Base, TimestampMixin):
|
||||
__tablename__ = "anime_series"
|
||||
|
||||
# ... existing fields ...
|
||||
|
||||
# Loading status fields (NEW)
|
||||
loading_status: Mapped[str] = mapped_column(
|
||||
String(50), default="completed", server_default="completed",
|
||||
doc="Loading status: pending, loading_episodes, loading_nfo, "
|
||||
"loading_logo, loading_images, completed, failed"
|
||||
)
|
||||
episodes_loaded: Mapped[bool] = mapped_column(
|
||||
Boolean, default=True, server_default="1",
|
||||
doc="Whether episodes have been scanned and loaded"
|
||||
)
|
||||
logo_loaded: Mapped[bool] = mapped_column(
|
||||
Boolean, default=False, server_default="0",
|
||||
doc="Whether logo.png has been downloaded"
|
||||
)
|
||||
images_loaded: Mapped[bool] = mapped_column(
|
||||
Boolean, default=False, server_default="0",
|
||||
doc="Whether poster/fanart have been downloaded"
|
||||
)
|
||||
loading_started_at: Mapped[Optional[datetime]] = mapped_column(
|
||||
DateTime(timezone=True), nullable=True,
|
||||
doc="When background loading started"
|
||||
)
|
||||
loading_completed_at: Mapped[Optional[datetime]] = mapped_column(
|
||||
DateTime(timezone=True), nullable=True,
|
||||
doc="When background loading completed"
|
||||
)
|
||||
loading_error: Mapped[Optional[str]] = mapped_column(
|
||||
String(1000), nullable=True,
|
||||
doc="Error message if loading failed"
|
||||
)
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## API Specifications
|
||||
|
||||
### POST /api/anime/add
|
||||
|
||||
**Purpose:** Add a new series immediately and queue background loading
|
||||
|
||||
**Changes from Current:**
|
||||
|
||||
- Returns 202 Accepted instead of 200 OK (indicates async processing)
|
||||
- Returns immediately without waiting for scan
|
||||
- Includes `loading_status` in response
|
||||
|
||||
**Request:**
|
||||
|
||||
```json
|
||||
{
|
||||
"link": "https://aniworld.to/anime/stream/attack-on-titan",
|
||||
"name": "Attack on Titan"
|
||||
}
|
||||
```
|
||||
|
||||
**Response: 202 Accepted**
|
||||
|
||||
```json
|
||||
{
|
||||
"status": "success",
|
||||
"message": "Series added and queued for background loading",
|
||||
"key": "attack-on-titan",
|
||||
"folder": "Attack on Titan (2013)",
|
||||
"db_id": 123,
|
||||
"loading_status": "pending",
|
||||
"loading_progress": {
|
||||
"episodes": false,
|
||||
"nfo": false,
|
||||
"logo": false,
|
||||
"images": false
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### GET /api/anime/{key}/loading-status (NEW)
|
||||
|
||||
**Purpose:** Get current loading status for a series
|
||||
|
||||
**Request:**
|
||||
|
||||
```
|
||||
GET /api/anime/attack-on-titan/loading-status
|
||||
```
|
||||
|
||||
**Response: 200 OK**
|
||||
|
||||
```json
|
||||
{
|
||||
"key": "attack-on-titan",
|
||||
"loading_status": "loading_nfo",
|
||||
"progress": {
|
||||
"episodes": true,
|
||||
"nfo": false,
|
||||
"logo": false,
|
||||
"images": false
|
||||
},
|
||||
"started_at": "2026-01-18T10:30:00Z",
|
||||
"message": "Generating NFO file...",
|
||||
"error": null
|
||||
}
|
||||
```
|
||||
|
||||
**When Completed:**
|
||||
|
||||
```json
|
||||
{
|
||||
"key": "attack-on-titan",
|
||||
"loading_status": "completed",
|
||||
"progress": {
|
||||
"episodes": true,
|
||||
"nfo": true,
|
||||
"logo": true,
|
||||
"images": true
|
||||
},
|
||||
"started_at": "2026-01-18T10:30:00Z",
|
||||
"completed_at": "2026-01-18T10:30:45Z",
|
||||
"message": "All data loaded successfully",
|
||||
"error": null
|
||||
}
|
||||
```
|
||||
|
||||
### WebSocket Message Format
|
||||
|
||||
**Following Existing Pattern:**
|
||||
|
||||
```json
|
||||
{
|
||||
"type": "series_loading_update",
|
||||
"key": "attack-on-titan",
|
||||
"loading_status": "loading_episodes",
|
||||
"progress": {
|
||||
"episodes": false,
|
||||
"nfo": false,
|
||||
"logo": false,
|
||||
"images": false
|
||||
},
|
||||
"message": "Loading episodes...",
|
||||
"timestamp": "2026-01-18T10:30:15Z"
|
||||
}
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Error Handling Strategy
|
||||
|
||||
### Error Types
|
||||
|
||||
1. **Network Errors** (TMDB API, provider site)
|
||||
- Retry with exponential backoff
|
||||
- Max 3 retries
|
||||
- Mark as failed if all retries exhausted
|
||||
|
||||
2. **Filesystem Errors** (disk space, permissions)
|
||||
- No retry
|
||||
- Mark as failed immediately
|
||||
- Log detailed error
|
||||
|
||||
3. **Database Errors** (connection, constraints)
|
||||
- Retry once after 1 second
|
||||
- Mark as failed if retry fails
|
||||
|
||||
### Error Recording
|
||||
|
||||
- Store error message in `loading_error` field
|
||||
- Set `loading_status` to "failed"
|
||||
- Broadcast error via WebSocket
|
||||
- Log with full context for debugging
|
||||
|
||||
### Partial Success
|
||||
|
||||
- If episodes load but NFO fails: Mark specific flags
|
||||
- Allow manual retry for failed components
|
||||
- Show partial status in UI
|
||||
|
||||
---
|
||||
|
||||
## Integration Points
|
||||
|
||||
### 1. **AnimeService Integration**
|
||||
|
||||
**Current Usage:**
|
||||
|
||||
```python
|
||||
# In anime.py API
|
||||
anime_service = Depends(get_anime_service)
|
||||
await anime_service.rescan()
|
||||
```
|
||||
|
||||
**New Usage in BackgroundLoader:**
|
||||
|
||||
```python
|
||||
# Reuse rescan for specific series
|
||||
await anime_service.rescan_series(key)
|
||||
```
|
||||
|
||||
**No Changes Needed to AnimeService** - Reuse as-is
|
||||
|
||||
### 2. **NFOService Integration**
|
||||
|
||||
**Current Access:**
|
||||
|
||||
```python
|
||||
# Via SeriesApp
|
||||
series_app.nfo_service.create_tvshow_nfo(...)
|
||||
```
|
||||
|
||||
**New Usage in BackgroundLoader:**
|
||||
|
||||
```python
|
||||
# Get NFOService from SeriesApp
|
||||
if series_app.nfo_service:
|
||||
await series_app.nfo_service.create_tvshow_nfo(
|
||||
serie_name=name,
|
||||
serie_folder=folder,
|
||||
year=year,
|
||||
download_poster=True,
|
||||
download_logo=True,
|
||||
download_fanart=True
|
||||
)
|
||||
```
|
||||
|
||||
**No Changes Needed to NFOService** - Reuse as-is
|
||||
|
||||
### 3. **WebSocketService Integration**
|
||||
|
||||
**Existing Pattern:**
|
||||
|
||||
```python
|
||||
# In websocket_service.py
|
||||
async def broadcast_download_progress(...):
|
||||
message = {
|
||||
"type": "download_progress",
|
||||
"key": key,
|
||||
...
|
||||
}
|
||||
await self.broadcast(message)
|
||||
```
|
||||
|
||||
**New Method (Following Pattern):**
|
||||
|
||||
```python
|
||||
async def broadcast_loading_status(
|
||||
self,
|
||||
key: str,
|
||||
loading_status: str,
|
||||
progress: Dict[str, bool],
|
||||
message: str
|
||||
):
|
||||
"""Broadcast loading status update."""
|
||||
payload = {
|
||||
"type": "series_loading_update",
|
||||
"key": key,
|
||||
"loading_status": loading_status,
|
||||
"progress": progress,
|
||||
"message": message,
|
||||
"timestamp": datetime.now(timezone.utc).isoformat()
|
||||
}
|
||||
await self.broadcast(payload)
|
||||
```
|
||||
|
||||
### 4. **Database Service Integration**
|
||||
|
||||
**Existing Services:**
|
||||
|
||||
- `AnimeSeriesService.get_by_key(db, key)`
|
||||
- `AnimeSeriesService.update(db, series_id, **kwargs)`
|
||||
|
||||
**New Helper Methods Needed:**
|
||||
|
||||
```python
|
||||
# In AnimeSeriesService
|
||||
async def update_loading_status(
|
||||
db,
|
||||
key: str,
|
||||
loading_status: str,
|
||||
**progress_flags
|
||||
):
|
||||
"""Update loading status and progress flags."""
|
||||
series = await self.get_by_key(db, key)
|
||||
if series:
|
||||
for field, value in progress_flags.items():
|
||||
setattr(series, field, value)
|
||||
series.loading_status = loading_status
|
||||
await db.commit()
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Code Reuse Strategy
|
||||
|
||||
### DO NOT DUPLICATE
|
||||
|
||||
#### ❌ Episode Loading Logic
|
||||
|
||||
**Wrong:**
|
||||
|
||||
```python
|
||||
# DON'T create new episode scanning logic
|
||||
async def _scan_episodes(self, key: str):
|
||||
# Duplicate logic...
|
||||
```
|
||||
|
||||
**Right:**
|
||||
|
||||
```python
|
||||
# Reuse existing AnimeService method
|
||||
await self.anime_service.rescan_series(key)
|
||||
```
|
||||
|
||||
#### ❌ NFO Generation Logic
|
||||
|
||||
**Wrong:**
|
||||
|
||||
```python
|
||||
# DON'T reimplement TMDB API calls
|
||||
async def _create_nfo(self, series):
|
||||
# Duplicate TMDB logic...
|
||||
```
|
||||
|
||||
**Right:**
|
||||
|
||||
```python
|
||||
# Reuse existing NFOService
|
||||
await self.series_app.nfo_service.create_tvshow_nfo(...)
|
||||
```
|
||||
|
||||
#### ❌ Database CRUD Operations
|
||||
|
||||
**Wrong:**
|
||||
|
||||
```python
|
||||
# DON'T write raw SQL
|
||||
await db.execute("UPDATE anime_series SET ...")
|
||||
```
|
||||
|
||||
**Right:**
|
||||
|
||||
```python
|
||||
# Use existing service methods
|
||||
await AnimeSeriesService.update(db, series_id, loading_status="completed")
|
||||
```
|
||||
|
||||
### WHAT TO CREATE
|
||||
|
||||
#### ✅ Task Queue Management
|
||||
|
||||
```python
|
||||
class BackgroundLoaderService:
|
||||
def __init__(self):
|
||||
self.task_queue: Queue[SeriesLoadingTask] = Queue()
|
||||
self.active_tasks: Dict[str, SeriesLoadingTask] = {}
|
||||
```
|
||||
|
||||
#### ✅ Orchestration Logic
|
||||
|
||||
```python
|
||||
async def _load_series_data(self, task: SeriesLoadingTask):
|
||||
"""Orchestrate loading by calling existing services."""
|
||||
# Check what's missing
|
||||
# Call appropriate existing services
|
||||
# Update status
|
||||
```
|
||||
|
||||
#### ✅ Status Tracking
|
||||
|
||||
```python
|
||||
class LoadingStatus(Enum):
|
||||
PENDING = "pending"
|
||||
LOADING_EPISODES = "loading_episodes"
|
||||
LOADING_NFO = "loading_nfo"
|
||||
COMPLETED = "completed"
|
||||
FAILED = "failed"
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Implementation Plan
|
||||
|
||||
### Phase 1: Database and Models (Step 1-2 of instructions)
|
||||
|
||||
- [ ] Create Alembic migration for new fields
|
||||
- [ ] Run migration to update database
|
||||
- [ ] Update AnimeSeries model with new fields
|
||||
- [ ] Test database changes
|
||||
|
||||
### Phase 2: BackgroundLoaderService (Step 3-4)
|
||||
|
||||
- [ ] Create `background_loader_service.py`
|
||||
- [ ] Implement task queue and worker
|
||||
- [ ] Implement orchestration methods (calling existing services)
|
||||
- [ ] Add status tracking
|
||||
- [ ] Write unit tests
|
||||
|
||||
### Phase 3: API Updates (Step 5-6)
|
||||
|
||||
- [ ] Update POST /api/anime/add for immediate return
|
||||
- [ ] Create GET /api/anime/{key}/loading-status endpoint
|
||||
- [ ] Update response models
|
||||
- [ ] Write API tests
|
||||
|
||||
### Phase 4: WebSocket Integration (Step 7)
|
||||
|
||||
- [ ] Add `broadcast_loading_status()` to WebSocketService
|
||||
- [ ] Integrate broadcasts in BackgroundLoader
|
||||
- [ ] Write WebSocket tests
|
||||
|
||||
### Phase 5: Startup Check (Step 8)
|
||||
|
||||
- [ ] Add startup event handler to check incomplete series
|
||||
- [ ] Queue incomplete series for background loading
|
||||
- [ ] Add graceful shutdown for background tasks
|
||||
- [ ] Write integration tests
|
||||
|
||||
### Phase 6: Frontend (Step 9-10)
|
||||
|
||||
- [ ] Add loading indicators to series cards
|
||||
- [ ] Handle WebSocket loading status messages
|
||||
- [ ] Add CSS for loading states
|
||||
- [ ] Test UI responsiveness
|
||||
|
||||
---
|
||||
|
||||
## Validation Checklist
|
||||
|
||||
### Code Duplication Prevention
|
||||
|
||||
- [x] ✅ No duplicate episode loading logic (reuse `AnimeService.rescan()`)
|
||||
- [x] ✅ No duplicate NFO generation (reuse `NFOService.create_tvshow_nfo()`)
|
||||
- [x] ✅ No duplicate database operations (reuse `AnimeSeriesService`)
|
||||
- [x] ✅ No duplicate WebSocket logic (extend existing patterns)
|
||||
- [x] ✅ BackgroundLoader only orchestrates, doesn't reimplement
|
||||
|
||||
### Architecture Quality
|
||||
|
||||
- [x] ✅ Clear separation of concerns
|
||||
- [x] ✅ Existing functionality not broken (backward compatible)
|
||||
- [x] ✅ New services follow project patterns
|
||||
- [x] ✅ API design consistent with existing endpoints
|
||||
- [x] ✅ Database changes are backward compatible (defaults for new fields)
|
||||
- [x] ✅ All integration points documented
|
||||
- [x] ✅ Error handling consistent across services
|
||||
|
||||
### Service Integration
|
||||
|
||||
- [x] ✅ AnimeService methods identified for reuse
|
||||
- [x] ✅ NFOService integration documented
|
||||
- [x] ✅ WebSocket pattern followed
|
||||
- [x] ✅ Database service usage clear
|
||||
- [x] ✅ Dependency injection strategy defined
|
||||
|
||||
### Testing Strategy
|
||||
|
||||
- [x] ✅ Unit tests for BackgroundLoaderService
|
||||
- [x] ✅ Integration tests for end-to-end flow
|
||||
- [x] ✅ API tests for new endpoints
|
||||
- [x] ✅ WebSocket tests for broadcasts
|
||||
- [x] ✅ Database migration tests
|
||||
|
||||
---
|
||||
|
||||
## Key Design Decisions
|
||||
|
||||
### 1. Queue-Based Architecture
|
||||
|
||||
**Rationale:** Provides natural async processing, rate limiting, and graceful shutdown
|
||||
|
||||
### 2. Reuse Existing Services
|
||||
|
||||
**Rationale:** Avoid code duplication, leverage tested code, maintain consistency
|
||||
|
||||
### 3. Incremental Progress Updates
|
||||
|
||||
**Rationale:** Better UX, allows UI to show detailed progress
|
||||
|
||||
### 4. Database-Backed Status
|
||||
|
||||
**Rationale:** Survives restarts, enables startup checks, provides audit trail
|
||||
|
||||
### 5. 202 Accepted Response
|
||||
|
||||
**Rationale:** HTTP standard for async operations, clear client expectation
|
||||
|
||||
---
|
||||
|
||||
## Next Steps
|
||||
|
||||
1. **Review this document** with team/stakeholders
|
||||
2. **Get approval** on architecture approach
|
||||
3. **Begin Phase 1** (Database changes)
|
||||
4. **Implement incrementally** following the phase plan
|
||||
5. **Test thoroughly** at each phase
|
||||
6. **Document** as you implement
|
||||
|
||||
---
|
||||
|
||||
## Questions for Review
|
||||
|
||||
1. ✅ Does BackgroundLoaderService correctly reuse existing services?
|
||||
2. ✅ Are database changes backward compatible?
|
||||
3. ✅ Is WebSocket message format consistent?
|
||||
4. ✅ Are error handling strategies appropriate?
|
||||
5. ✅ Is startup check logic sound?
|
||||
6. ✅ Are API responses following REST best practices?
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** ✅ READY FOR REVIEW AND IMPLEMENTATION
|
||||
|
||||
This architecture ensures clean integration without code duplication while following all project patterns and best practices.
|
||||
1406
docs/instructions.md
1406
docs/instructions.md
File diff suppressed because it is too large
Load Diff
97
scripts/migrate_loading_status.py
Normal file
97
scripts/migrate_loading_status.py
Normal file
@@ -0,0 +1,97 @@
|
||||
"""Database migration utility for adding loading status fields.
|
||||
|
||||
This script adds the loading status fields to existing anime_series tables
|
||||
without Alembic. For new databases, these fields are created automatically
|
||||
via create_all().
|
||||
|
||||
Run this after updating the models.py file.
|
||||
"""
|
||||
import asyncio
|
||||
import logging
|
||||
import sys
|
||||
from pathlib import Path
|
||||
|
||||
# Add project root to Python path
|
||||
project_root = Path(__file__).parent.parent
|
||||
sys.path.insert(0, str(project_root))
|
||||
|
||||
from sqlalchemy import text
|
||||
from sqlalchemy.exc import OperationalError
|
||||
|
||||
from src.config.settings import settings
|
||||
from src.server.database.connection import get_engine, init_db
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
logging.basicConfig(level=logging.INFO)
|
||||
|
||||
|
||||
async def migrate_add_loading_status_fields():
|
||||
"""Add loading status fields to anime_series table if they don't exist."""
|
||||
|
||||
# Initialize database connection
|
||||
await init_db()
|
||||
engine = get_engine()
|
||||
|
||||
if not engine:
|
||||
logger.error("Failed to get database engine")
|
||||
return
|
||||
|
||||
# Define the migrations
|
||||
migrations = [
|
||||
("loading_status", "ALTER TABLE anime_series ADD COLUMN loading_status VARCHAR(50) NOT NULL DEFAULT 'completed'"),
|
||||
("episodes_loaded", "ALTER TABLE anime_series ADD COLUMN episodes_loaded BOOLEAN NOT NULL DEFAULT 1"),
|
||||
("logo_loaded", "ALTER TABLE anime_series ADD COLUMN logo_loaded BOOLEAN NOT NULL DEFAULT 0"),
|
||||
("images_loaded", "ALTER TABLE anime_series ADD COLUMN images_loaded BOOLEAN NOT NULL DEFAULT 0"),
|
||||
("loading_started_at", "ALTER TABLE anime_series ADD COLUMN loading_started_at TIMESTAMP"),
|
||||
("loading_completed_at", "ALTER TABLE anime_series ADD COLUMN loading_completed_at TIMESTAMP"),
|
||||
("loading_error", "ALTER TABLE anime_series ADD COLUMN loading_error VARCHAR(1000)"),
|
||||
]
|
||||
|
||||
async with engine.begin() as conn:
|
||||
for column_name, sql in migrations:
|
||||
try:
|
||||
logger.info(f"Adding column: {column_name}")
|
||||
await conn.execute(text(sql))
|
||||
logger.info(f"✅ Successfully added column: {column_name}")
|
||||
except OperationalError as e:
|
||||
if "duplicate column name" in str(e).lower() or "already exists" in str(e).lower():
|
||||
logger.info(f"⏭️ Column {column_name} already exists, skipping")
|
||||
else:
|
||||
logger.error(f"❌ Error adding column {column_name}: {e}")
|
||||
raise
|
||||
|
||||
logger.info("Migration completed successfully!")
|
||||
logger.info("All loading status fields are now available in anime_series table")
|
||||
|
||||
|
||||
async def rollback_loading_status_fields():
|
||||
"""Remove loading status fields from anime_series table."""
|
||||
|
||||
await init_db()
|
||||
engine = get_engine()
|
||||
|
||||
if not engine:
|
||||
logger.error("Failed to get database engine")
|
||||
return
|
||||
|
||||
# SQLite doesn't support DROP COLUMN easily, so we'd need to recreate the table
|
||||
# For now, just log a warning
|
||||
logger.warning("Rollback not implemented for SQLite")
|
||||
logger.warning("To rollback, you would need to:")
|
||||
logger.warning("1. Create a new table without the loading fields")
|
||||
logger.warning("2. Copy data from old table")
|
||||
logger.warning("3. Drop old table and rename new table")
|
||||
|
||||
|
||||
def main():
|
||||
"""Run the migration."""
|
||||
import sys
|
||||
|
||||
if len(sys.argv) > 1 and sys.argv[1] == "rollback":
|
||||
asyncio.run(rollback_loading_status_fields())
|
||||
else:
|
||||
asyncio.run(migrate_add_loading_status_fields())
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
@@ -1,5 +1,4 @@
|
||||
import logging
|
||||
import os
|
||||
import warnings
|
||||
from typing import Any, List, Optional
|
||||
|
||||
@@ -16,6 +15,10 @@ from src.server.exceptions import (
|
||||
ValidationError,
|
||||
)
|
||||
from src.server.services.anime_service import AnimeService, AnimeServiceError
|
||||
from src.server.services.background_loader_service import (
|
||||
BackgroundLoaderService,
|
||||
get_background_loader_service,
|
||||
)
|
||||
from src.server.utils.dependencies import (
|
||||
get_anime_service,
|
||||
get_optional_database_session,
|
||||
@@ -688,23 +691,27 @@ async def _perform_search(
|
||||
) from exc
|
||||
|
||||
|
||||
@router.post("/add")
|
||||
@router.post("/add", status_code=status.HTTP_202_ACCEPTED)
|
||||
async def add_series(
|
||||
request: AddSeriesRequest,
|
||||
_auth: dict = Depends(require_auth),
|
||||
series_app: Any = Depends(get_series_app),
|
||||
db: Optional[AsyncSession] = Depends(get_optional_database_session),
|
||||
anime_service: AnimeService = Depends(get_anime_service),
|
||||
background_loader: BackgroundLoaderService = Depends(get_background_loader_service),
|
||||
) -> dict:
|
||||
"""Add a new series to the library with full initialization.
|
||||
"""Add a new series to the library with asynchronous data loading.
|
||||
|
||||
This endpoint performs the complete series addition flow:
|
||||
This endpoint performs immediate series addition and queues background loading:
|
||||
1. Validates inputs and extracts the series key from the link URL
|
||||
2. Creates a sanitized folder name from the display name
|
||||
3. Saves the series to the database (if available)
|
||||
3. Saves the series to the database with loading_status="pending"
|
||||
4. Creates the folder on disk with the sanitized name
|
||||
5. Triggers a targeted scan for missing episodes (only this series)
|
||||
5. Queues background loading task for episodes, NFO, and images
|
||||
6. Returns immediately (202 Accepted) without waiting for data loading
|
||||
|
||||
Data loading happens asynchronously in the background, with real-time
|
||||
status updates via WebSocket.
|
||||
|
||||
The `key` is the URL-safe identifier used for all lookups.
|
||||
The `name` is stored as display metadata and used to derive
|
||||
the filesystem folder name (sanitized for filesystem safety).
|
||||
@@ -716,7 +723,7 @@ async def add_series(
|
||||
_auth: Ensures the caller is authenticated (value unused)
|
||||
series_app: Core `SeriesApp` instance provided via dependency
|
||||
db: Optional database session for async operations
|
||||
anime_service: AnimeService for scanning operations
|
||||
background_loader: BackgroundLoaderService for async data loading
|
||||
|
||||
Returns:
|
||||
Dict[str, Any]: Status payload with:
|
||||
@@ -725,8 +732,8 @@ async def add_series(
|
||||
- key: Series unique identifier
|
||||
- folder: Created folder path
|
||||
- db_id: Database ID (if saved to DB)
|
||||
- missing_episodes: Dict of missing episodes by season
|
||||
- total_missing: Total count of missing episodes
|
||||
- loading_status: Current loading status
|
||||
- loading_progress: Dict of what data is being loaded
|
||||
|
||||
Raises:
|
||||
HTTPException: If adding the series fails or link is invalid
|
||||
@@ -792,8 +799,6 @@ async def add_series(
|
||||
)
|
||||
|
||||
db_id = None
|
||||
missing_episodes: dict = {}
|
||||
scan_error: Optional[str] = None
|
||||
|
||||
# Step C: Save to database if available
|
||||
if db is not None:
|
||||
@@ -806,11 +811,16 @@ async def add_series(
|
||||
"key": key,
|
||||
"folder": existing.folder,
|
||||
"db_id": existing.id,
|
||||
"missing_episodes": {},
|
||||
"total_missing": 0
|
||||
"loading_status": existing.loading_status,
|
||||
"loading_progress": {
|
||||
"episodes": existing.episodes_loaded,
|
||||
"nfo": existing.has_nfo,
|
||||
"logo": existing.logo_loaded,
|
||||
"images": existing.images_loaded
|
||||
}
|
||||
}
|
||||
|
||||
# Save to database using AnimeSeriesService
|
||||
# Save to database using AnimeSeriesService with loading status
|
||||
anime_series = await AnimeSeriesService.create(
|
||||
db=db,
|
||||
key=key,
|
||||
@@ -818,11 +828,16 @@ async def add_series(
|
||||
site="aniworld.to",
|
||||
folder=folder,
|
||||
year=year,
|
||||
loading_status="pending",
|
||||
episodes_loaded=False,
|
||||
logo_loaded=False,
|
||||
images_loaded=False,
|
||||
loading_started_at=None,
|
||||
)
|
||||
db_id = anime_series.id
|
||||
|
||||
logger.info(
|
||||
"Added series to database: %s (key=%s, db_id=%d, year=%s)",
|
||||
"Added series to database: %s (key=%s, db_id=%d, year=%s, loading=pending)",
|
||||
name,
|
||||
key,
|
||||
db_id,
|
||||
@@ -851,80 +866,43 @@ async def add_series(
|
||||
year
|
||||
)
|
||||
|
||||
# Step E: Trigger targeted scan for missing episodes
|
||||
# Step E: Queue background loading task for episodes, NFO, and images
|
||||
try:
|
||||
if series_app and hasattr(series_app, "serie_scanner"):
|
||||
missing_episodes = series_app.serie_scanner.scan_single_series(
|
||||
key=key,
|
||||
folder=folder
|
||||
)
|
||||
logger.info(
|
||||
"Targeted scan completed for %s: found %d missing episodes",
|
||||
key,
|
||||
sum(len(eps) for eps in missing_episodes.values())
|
||||
)
|
||||
|
||||
# Update the serie in keyDict with the missing episodes
|
||||
if hasattr(series_app, "list") and hasattr(series_app.list, "keyDict"):
|
||||
if key in series_app.list.keyDict:
|
||||
series_app.list.keyDict[key].episodeDict = missing_episodes
|
||||
|
||||
# Save missing episodes to database
|
||||
if db is not None and missing_episodes:
|
||||
from src.server.database.service import EpisodeService
|
||||
|
||||
for season, episode_numbers in missing_episodes.items():
|
||||
for episode_number in episode_numbers:
|
||||
await EpisodeService.create(
|
||||
db=db,
|
||||
series_id=db_id,
|
||||
season=season,
|
||||
episode_number=episode_number,
|
||||
)
|
||||
|
||||
logger.info(
|
||||
"Saved %d missing episodes to database for %s",
|
||||
sum(len(eps) for eps in missing_episodes.values()),
|
||||
key
|
||||
)
|
||||
else:
|
||||
# Scanner not available - this shouldn't happen in normal operation
|
||||
logger.warning(
|
||||
"Scanner not available for targeted scan of %s",
|
||||
key
|
||||
)
|
||||
await background_loader.add_series_loading_task(
|
||||
key=key,
|
||||
folder=folder,
|
||||
name=name,
|
||||
year=year
|
||||
)
|
||||
logger.info(
|
||||
"Queued background loading for %s (key=%s)",
|
||||
name,
|
||||
key
|
||||
)
|
||||
except Exception as e:
|
||||
# Scan failure is not critical - series was still added
|
||||
scan_error = str(e)
|
||||
# Background loading queue failure is not critical - series was still added
|
||||
logger.warning(
|
||||
"Targeted scan failed for %s: %s (series still added)",
|
||||
"Failed to queue background loading for %s: %s",
|
||||
key,
|
||||
e
|
||||
)
|
||||
|
||||
# Convert missing episodes keys to strings for JSON serialization
|
||||
missing_episodes_serializable = {
|
||||
str(season): episodes
|
||||
for season, episodes in missing_episodes.items()
|
||||
}
|
||||
|
||||
# Calculate total missing
|
||||
total_missing = sum(len(eps) for eps in missing_episodes.values())
|
||||
|
||||
# Step F: Return response
|
||||
# Step F: Return immediate response (202 Accepted)
|
||||
response = {
|
||||
"status": "success",
|
||||
"message": f"Successfully added series: {name}",
|
||||
"message": f"Series added successfully: {name}. Data will be loaded in background.",
|
||||
"key": key,
|
||||
"folder": folder,
|
||||
"db_id": db_id,
|
||||
"missing_episodes": missing_episodes_serializable,
|
||||
"total_missing": total_missing
|
||||
"loading_status": "pending",
|
||||
"loading_progress": {
|
||||
"episodes": False,
|
||||
"nfo": False,
|
||||
"logo": False,
|
||||
"images": False
|
||||
}
|
||||
}
|
||||
|
||||
if scan_error:
|
||||
response["scan_warning"] = f"Scan partially failed: {scan_error}"
|
||||
|
||||
return response
|
||||
|
||||
except HTTPException:
|
||||
@@ -941,6 +919,97 @@ async def add_series(
|
||||
) from exc
|
||||
|
||||
|
||||
@router.get("/{anime_key}/loading-status")
|
||||
async def get_loading_status(
|
||||
anime_key: str,
|
||||
_auth: dict = Depends(require_auth),
|
||||
db: Optional[AsyncSession] = Depends(get_optional_database_session),
|
||||
) -> dict:
|
||||
"""Get current loading status for a series.
|
||||
|
||||
Returns the current background loading status including what data
|
||||
has been loaded and what is still pending.
|
||||
|
||||
Args:
|
||||
anime_key: Series unique identifier (key)
|
||||
_auth: Ensures the caller is authenticated
|
||||
db: Optional database session
|
||||
|
||||
Returns:
|
||||
Dict with loading status information:
|
||||
- key: Series identifier
|
||||
- loading_status: Current status (pending, loading_*, completed, failed)
|
||||
- progress: Dict of what data is loaded
|
||||
- started_at: When loading started
|
||||
- completed_at: When loading completed (if done)
|
||||
- message: Human-readable status message
|
||||
- error: Error message if failed
|
||||
|
||||
Raises:
|
||||
HTTPException: If series not found or database unavailable
|
||||
"""
|
||||
if db is None:
|
||||
raise HTTPException(
|
||||
status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
|
||||
detail="Database not available"
|
||||
)
|
||||
|
||||
try:
|
||||
from src.server.database.service import AnimeSeriesService
|
||||
|
||||
# Get series from database
|
||||
series = await AnimeSeriesService.get_by_key(db, anime_key)
|
||||
|
||||
if not series:
|
||||
raise HTTPException(
|
||||
status_code=status.HTTP_404_NOT_FOUND,
|
||||
detail=f"Series not found: {anime_key}"
|
||||
)
|
||||
|
||||
# Build status message
|
||||
message = ""
|
||||
if series.loading_status == "pending":
|
||||
message = "Queued for loading..."
|
||||
elif series.loading_status == "loading_episodes":
|
||||
message = "Loading episodes..."
|
||||
elif series.loading_status == "loading_nfo":
|
||||
message = "Generating NFO file..."
|
||||
elif series.loading_status == "loading_logo":
|
||||
message = "Downloading logo..."
|
||||
elif series.loading_status == "loading_images":
|
||||
message = "Downloading images..."
|
||||
elif series.loading_status == "completed":
|
||||
message = "All data loaded successfully"
|
||||
elif series.loading_status == "failed":
|
||||
message = f"Loading failed: {series.loading_error}"
|
||||
else:
|
||||
message = "Loading..."
|
||||
|
||||
return {
|
||||
"key": series.key,
|
||||
"loading_status": series.loading_status,
|
||||
"progress": {
|
||||
"episodes": series.episodes_loaded,
|
||||
"nfo": series.has_nfo,
|
||||
"logo": series.logo_loaded,
|
||||
"images": series.images_loaded
|
||||
},
|
||||
"started_at": series.loading_started_at.isoformat() if series.loading_started_at else None,
|
||||
"completed_at": series.loading_completed_at.isoformat() if series.loading_completed_at else None,
|
||||
"message": message,
|
||||
"error": series.loading_error
|
||||
}
|
||||
|
||||
except HTTPException:
|
||||
raise
|
||||
except Exception as exc:
|
||||
logger.error("Failed to get loading status: %s", exc, exc_info=True)
|
||||
raise HTTPException(
|
||||
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
||||
detail=f"Failed to get loading status: {str(exc)}"
|
||||
) from exc
|
||||
|
||||
|
||||
@router.get("/{anime_id}", response_model=AnimeDetail)
|
||||
async def get_anime(
|
||||
anime_id: str,
|
||||
|
||||
@@ -100,6 +100,37 @@ class AnimeSeries(Base, TimestampMixin):
|
||||
doc="TVDB (TheTVDB) ID for series metadata"
|
||||
)
|
||||
|
||||
# Loading status fields for asynchronous data loading
|
||||
loading_status: Mapped[str] = mapped_column(
|
||||
String(50), nullable=False, default="completed", server_default="completed",
|
||||
doc="Loading status: pending, loading_episodes, loading_nfo, loading_logo, "
|
||||
"loading_images, completed, failed"
|
||||
)
|
||||
episodes_loaded: Mapped[bool] = mapped_column(
|
||||
Boolean, nullable=False, default=True, server_default="1",
|
||||
doc="Whether episodes have been scanned and loaded"
|
||||
)
|
||||
logo_loaded: Mapped[bool] = mapped_column(
|
||||
Boolean, nullable=False, default=False, server_default="0",
|
||||
doc="Whether logo.png has been downloaded"
|
||||
)
|
||||
images_loaded: Mapped[bool] = mapped_column(
|
||||
Boolean, nullable=False, default=False, server_default="0",
|
||||
doc="Whether poster/fanart images have been downloaded"
|
||||
)
|
||||
loading_started_at: Mapped[Optional[datetime]] = mapped_column(
|
||||
DateTime(timezone=True), nullable=True,
|
||||
doc="Timestamp when background loading started"
|
||||
)
|
||||
loading_completed_at: Mapped[Optional[datetime]] = mapped_column(
|
||||
DateTime(timezone=True), nullable=True,
|
||||
doc="Timestamp when background loading completed"
|
||||
)
|
||||
loading_error: Mapped[Optional[str]] = mapped_column(
|
||||
String(1000), nullable=True,
|
||||
doc="Error message if loading failed"
|
||||
)
|
||||
|
||||
# Relationships
|
||||
episodes: Mapped[List["Episode"]] = relationship(
|
||||
"Episode",
|
||||
|
||||
@@ -65,6 +65,11 @@ class AnimeSeriesService:
|
||||
site: str,
|
||||
folder: str,
|
||||
year: int | None = None,
|
||||
loading_status: str = "completed",
|
||||
episodes_loaded: bool = True,
|
||||
logo_loaded: bool = False,
|
||||
images_loaded: bool = False,
|
||||
loading_started_at: datetime | None = None,
|
||||
) -> AnimeSeries:
|
||||
"""Create a new anime series.
|
||||
|
||||
@@ -75,6 +80,11 @@ class AnimeSeriesService:
|
||||
site: Provider site URL
|
||||
folder: Local filesystem path
|
||||
year: Release year (optional)
|
||||
loading_status: Initial loading status (default: "completed")
|
||||
episodes_loaded: Whether episodes are loaded (default: True for backward compat)
|
||||
logo_loaded: Whether logo is loaded (default: False)
|
||||
images_loaded: Whether images are loaded (default: False)
|
||||
loading_started_at: When loading started (optional)
|
||||
|
||||
Returns:
|
||||
Created AnimeSeries instance
|
||||
@@ -88,6 +98,11 @@ class AnimeSeriesService:
|
||||
site=site,
|
||||
folder=folder,
|
||||
year=year,
|
||||
loading_status=loading_status,
|
||||
episodes_loaded=episodes_loaded,
|
||||
logo_loaded=logo_loaded,
|
||||
images_loaded=images_loaded,
|
||||
loading_started_at=loading_started_at,
|
||||
)
|
||||
db.add(series)
|
||||
await db.flush()
|
||||
|
||||
@@ -44,6 +44,66 @@ from src.server.services.websocket_service import get_websocket_service
|
||||
# module-level globals. This makes testing and multi-instance hosting safer.
|
||||
|
||||
|
||||
async def _check_incomplete_series_on_startup(background_loader) -> None:
|
||||
"""Check for incomplete series on startup and queue background loading.
|
||||
|
||||
Args:
|
||||
background_loader: BackgroundLoaderService instance
|
||||
"""
|
||||
logger = setup_logging(log_level="INFO")
|
||||
|
||||
try:
|
||||
from src.server.database.connection import get_db_session
|
||||
from src.server.database.service import AnimeSeriesService
|
||||
|
||||
async for db in get_db_session():
|
||||
try:
|
||||
# Get all series from database
|
||||
series_list = await AnimeSeriesService.get_all(db)
|
||||
|
||||
incomplete_series = []
|
||||
|
||||
for series in series_list:
|
||||
# Check if series has incomplete loading
|
||||
if series.loading_status != "completed":
|
||||
incomplete_series.append(series)
|
||||
# Or check if specific data is missing
|
||||
elif (not series.episodes_loaded or
|
||||
not series.has_nfo or
|
||||
not series.logo_loaded or
|
||||
not series.images_loaded):
|
||||
incomplete_series.append(series)
|
||||
|
||||
if incomplete_series:
|
||||
logger.info(
|
||||
f"Found {len(incomplete_series)} series with missing data. "
|
||||
f"Queuing for background loading..."
|
||||
)
|
||||
|
||||
for series in incomplete_series:
|
||||
await background_loader.add_series_loading_task(
|
||||
key=series.key,
|
||||
folder=series.folder,
|
||||
name=series.name,
|
||||
year=series.year
|
||||
)
|
||||
logger.debug(
|
||||
f"Queued background loading for series: {series.key}"
|
||||
)
|
||||
|
||||
logger.info("All incomplete series queued for background loading")
|
||||
else:
|
||||
logger.info("All series data is complete. No background loading needed.")
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"Error checking incomplete series: {e}", exc_info=True)
|
||||
|
||||
break # Exit after first iteration
|
||||
|
||||
except Exception as e:
|
||||
logger.error(f"Failed to check incomplete series on startup: {e}", exc_info=True)
|
||||
|
||||
|
||||
@asynccontextmanager
|
||||
async def lifespan(_application: FastAPI):
|
||||
"""Manage application lifespan (startup and shutdown).
|
||||
@@ -156,6 +216,15 @@ async def lifespan(_application: FastAPI):
|
||||
download_service = get_download_service()
|
||||
await download_service.initialize()
|
||||
logger.info("Download service initialized and queue restored")
|
||||
|
||||
# Initialize background loader service
|
||||
from src.server.utils.dependencies import get_background_loader_service
|
||||
background_loader = get_background_loader_service()
|
||||
await background_loader.start()
|
||||
logger.info("Background loader service started")
|
||||
|
||||
# Check for incomplete series and queue background loading
|
||||
await _check_incomplete_series_on_startup(background_loader)
|
||||
else:
|
||||
logger.info(
|
||||
"Download service initialization skipped - "
|
||||
@@ -191,7 +260,22 @@ async def lifespan(_application: FastAPI):
|
||||
elapsed = time.monotonic() - shutdown_start
|
||||
return max(0.0, SHUTDOWN_TIMEOUT - elapsed)
|
||||
|
||||
# 1. Broadcast shutdown notification via WebSocket
|
||||
# 1. Stop background loader service
|
||||
try:
|
||||
from src.server.utils.dependencies import _background_loader_service
|
||||
if _background_loader_service is not None:
|
||||
logger.info("Stopping background loader service...")
|
||||
await asyncio.wait_for(
|
||||
_background_loader_service.stop(),
|
||||
timeout=min(10.0, remaining_time())
|
||||
)
|
||||
logger.info("Background loader service stopped")
|
||||
except asyncio.TimeoutError:
|
||||
logger.warning("Background loader service shutdown timed out")
|
||||
except Exception as e: # pylint: disable=broad-exception-caught
|
||||
logger.error("Error stopping background loader service: %s", e, exc_info=True)
|
||||
|
||||
# 2. Broadcast shutdown notification via WebSocket
|
||||
try:
|
||||
ws_service = get_websocket_service()
|
||||
logger.info("Broadcasting shutdown notification to WebSocket clients...")
|
||||
@@ -205,7 +289,7 @@ async def lifespan(_application: FastAPI):
|
||||
except Exception as e: # pylint: disable=broad-exception-caught
|
||||
logger.error("Error during WebSocket shutdown: %s", e, exc_info=True)
|
||||
|
||||
# 2. Shutdown download service and persist active downloads
|
||||
# 3. Shutdown download service and persist active downloads
|
||||
try:
|
||||
from src.server.services.download_service import ( # noqa: E501
|
||||
_download_service_instance,
|
||||
@@ -218,7 +302,7 @@ async def lifespan(_application: FastAPI):
|
||||
except Exception as e: # pylint: disable=broad-exception-caught
|
||||
logger.error("Error stopping download service: %s", e, exc_info=True)
|
||||
|
||||
# 3. Shutdown SeriesApp and cleanup thread pool
|
||||
# 4. Shutdown SeriesApp and cleanup thread pool
|
||||
try:
|
||||
from src.server.utils.dependencies import _series_app
|
||||
if _series_app is not None:
|
||||
@@ -228,7 +312,7 @@ async def lifespan(_application: FastAPI):
|
||||
except Exception as e: # pylint: disable=broad-exception-caught
|
||||
logger.error("Error during SeriesApp shutdown: %s", e, exc_info=True)
|
||||
|
||||
# 4. Cleanup progress service
|
||||
# 5. Cleanup progress service
|
||||
try:
|
||||
progress_service = get_progress_service()
|
||||
logger.info("Cleaning up progress service...")
|
||||
|
||||
520
src/server/services/background_loader_service.py
Normal file
520
src/server/services/background_loader_service.py
Normal file
@@ -0,0 +1,520 @@
|
||||
"""Background loader service for asynchronous series data loading.
|
||||
|
||||
This service orchestrates background loading of series metadata (episodes, NFO files,
|
||||
logos, images) without blocking the user. It provides a task queue system for managing
|
||||
loading operations and real-time status updates via WebSocket.
|
||||
|
||||
Key Features:
|
||||
- Asynchronous task queue for series data loading
|
||||
- Reuses existing services (AnimeService, NFOService) to avoid code duplication
|
||||
- Real-time progress updates via WebSocket
|
||||
- Graceful startup and shutdown handling
|
||||
- Error handling with retry logic
|
||||
"""
|
||||
from __future__ import annotations
|
||||
|
||||
import asyncio
|
||||
from dataclasses import dataclass, field
|
||||
from datetime import datetime, timezone
|
||||
from enum import Enum
|
||||
from pathlib import Path
|
||||
from typing import Any, Dict, List, Optional
|
||||
|
||||
import structlog
|
||||
|
||||
from src.server.services.websocket_service import WebSocketService
|
||||
|
||||
logger = structlog.get_logger(__name__)
|
||||
|
||||
|
||||
class LoadingStatus(str, Enum):
|
||||
"""Status of a series loading task."""
|
||||
|
||||
PENDING = "pending"
|
||||
LOADING_EPISODES = "loading_episodes"
|
||||
LOADING_NFO = "loading_nfo"
|
||||
LOADING_LOGO = "loading_logo"
|
||||
LOADING_IMAGES = "loading_images"
|
||||
COMPLETED = "completed"
|
||||
FAILED = "failed"
|
||||
|
||||
|
||||
@dataclass
|
||||
class SeriesLoadingTask:
|
||||
"""Represents a series loading task with progress tracking.
|
||||
|
||||
Attributes:
|
||||
key: Series unique identifier (primary key)
|
||||
folder: Series folder name (metadata only)
|
||||
name: Series display name
|
||||
year: Series release year
|
||||
status: Current loading status
|
||||
progress: Dict tracking what data has been loaded
|
||||
started_at: When loading started
|
||||
completed_at: When loading completed
|
||||
error: Error message if loading failed
|
||||
"""
|
||||
|
||||
key: str
|
||||
folder: str
|
||||
name: str
|
||||
year: Optional[int] = None
|
||||
status: LoadingStatus = LoadingStatus.PENDING
|
||||
progress: Dict[str, bool] = field(default_factory=lambda: {
|
||||
"episodes": False,
|
||||
"nfo": False,
|
||||
"logo": False,
|
||||
"images": False
|
||||
})
|
||||
started_at: Optional[datetime] = None
|
||||
completed_at: Optional[datetime] = None
|
||||
error: Optional[str] = None
|
||||
|
||||
|
||||
class BackgroundLoaderService:
|
||||
"""Service for managing background loading of series metadata.
|
||||
|
||||
This service orchestrates asynchronous loading by delegating to existing
|
||||
services (AnimeService for episodes, NFOService for NFO/images) rather
|
||||
than reimplementing logic. It provides task queuing, status tracking,
|
||||
and WebSocket notifications.
|
||||
|
||||
Attributes:
|
||||
websocket_service: Service for broadcasting status updates
|
||||
anime_service: Service for episode scanning (reused)
|
||||
series_app: Core SeriesApp instance for NFO service access
|
||||
task_queue: Queue of pending loading tasks
|
||||
active_tasks: Dict of currently processing tasks
|
||||
worker_task: Background worker task
|
||||
"""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
websocket_service: WebSocketService,
|
||||
anime_service: Any, # AnimeService - avoiding circular import
|
||||
series_app: Any, # SeriesApp - avoiding circular import
|
||||
):
|
||||
"""Initialize the background loader service.
|
||||
|
||||
Args:
|
||||
websocket_service: WebSocket service for status broadcasts
|
||||
anime_service: AnimeService instance for episode operations
|
||||
series_app: SeriesApp instance for NFO operations
|
||||
"""
|
||||
self.websocket_service = websocket_service
|
||||
self.anime_service = anime_service
|
||||
self.series_app = series_app
|
||||
|
||||
# Task management
|
||||
self.task_queue: asyncio.Queue[SeriesLoadingTask] = asyncio.Queue()
|
||||
self.active_tasks: Dict[str, SeriesLoadingTask] = {}
|
||||
self.worker_task: Optional[asyncio.Task] = None
|
||||
self._shutdown = False
|
||||
|
||||
logger.info("BackgroundLoaderService initialized")
|
||||
|
||||
async def start(self) -> None:
|
||||
"""Start the background worker task."""
|
||||
if self.worker_task is not None and not self.worker_task.done():
|
||||
logger.warning("Background worker already running")
|
||||
return
|
||||
|
||||
self._shutdown = False
|
||||
self.worker_task = asyncio.create_task(self._worker())
|
||||
logger.info("Background worker started")
|
||||
|
||||
async def stop(self) -> None:
|
||||
"""Stop the background worker gracefully."""
|
||||
if self.worker_task is None:
|
||||
return
|
||||
|
||||
logger.info("Stopping background worker...")
|
||||
self._shutdown = True
|
||||
|
||||
# Cancel the worker task
|
||||
if not self.worker_task.done():
|
||||
self.worker_task.cancel()
|
||||
try:
|
||||
await self.worker_task
|
||||
except asyncio.CancelledError:
|
||||
pass
|
||||
|
||||
logger.info("Background worker stopped")
|
||||
|
||||
async def add_series_loading_task(
|
||||
self,
|
||||
key: str,
|
||||
folder: str,
|
||||
name: str,
|
||||
year: Optional[int] = None
|
||||
) -> None:
|
||||
"""Add a series to the loading queue.
|
||||
|
||||
Args:
|
||||
key: Series unique identifier (primary key)
|
||||
folder: Series folder name (metadata only)
|
||||
name: Series display name
|
||||
year: Series release year
|
||||
"""
|
||||
# Check if task already exists
|
||||
if key in self.active_tasks:
|
||||
logger.debug(f"Task for series {key} already exists, skipping")
|
||||
return
|
||||
|
||||
task = SeriesLoadingTask(
|
||||
key=key,
|
||||
folder=folder,
|
||||
name=name,
|
||||
year=year,
|
||||
started_at=datetime.now(timezone.utc)
|
||||
)
|
||||
|
||||
self.active_tasks[key] = task
|
||||
await self.task_queue.put(task)
|
||||
|
||||
logger.info(f"Added loading task for series: {key}")
|
||||
|
||||
# Broadcast initial status
|
||||
await self._broadcast_status(task)
|
||||
|
||||
async def check_missing_data(
|
||||
self,
|
||||
key: str,
|
||||
folder: str,
|
||||
anime_directory: str,
|
||||
db: Any
|
||||
) -> Dict[str, bool]:
|
||||
"""Check what data is missing for a series.
|
||||
|
||||
Args:
|
||||
key: Series unique identifier
|
||||
folder: Series folder name
|
||||
anime_directory: Base anime directory path
|
||||
db: Database session
|
||||
|
||||
Returns:
|
||||
Dict indicating what data is missing (True = missing, False = exists)
|
||||
"""
|
||||
missing = {
|
||||
"episodes": False,
|
||||
"nfo": False,
|
||||
"logo": False,
|
||||
"images": False
|
||||
}
|
||||
|
||||
# Check database for series info
|
||||
from src.server.database.service import AnimeSeriesService
|
||||
|
||||
series_db = await AnimeSeriesService.get_by_key(db, key)
|
||||
if not series_db:
|
||||
# Series doesn't exist in DB, need everything
|
||||
missing = {k: True for k in missing}
|
||||
return missing
|
||||
|
||||
# Check episodes
|
||||
missing["episodes"] = not series_db.episodes_loaded
|
||||
|
||||
# Check NFO file
|
||||
nfo_path = Path(anime_directory) / folder / "tvshow.nfo"
|
||||
missing["nfo"] = not nfo_path.exists() or not series_db.has_nfo
|
||||
|
||||
# Check logo
|
||||
logo_path = Path(anime_directory) / folder / "logo.png"
|
||||
missing["logo"] = not logo_path.exists() or not series_db.logo_loaded
|
||||
|
||||
# Check images (poster and fanart)
|
||||
poster_path = Path(anime_directory) / folder / "poster.jpg"
|
||||
fanart_path = Path(anime_directory) / folder / "fanart.jpg"
|
||||
missing["images"] = (
|
||||
not (poster_path.exists() and fanart_path.exists())
|
||||
or not series_db.images_loaded
|
||||
)
|
||||
|
||||
return missing
|
||||
|
||||
async def _worker(self) -> None:
|
||||
"""Background worker that processes loading tasks from the queue."""
|
||||
logger.info("Background worker started processing tasks")
|
||||
|
||||
while not self._shutdown:
|
||||
try:
|
||||
# Wait for a task with timeout to allow shutdown checks
|
||||
task = await asyncio.wait_for(
|
||||
self.task_queue.get(),
|
||||
timeout=1.0
|
||||
)
|
||||
|
||||
logger.info(f"Processing loading task for series: {task.key}")
|
||||
|
||||
# Process the task
|
||||
await self._load_series_data(task)
|
||||
|
||||
# Mark task as done
|
||||
self.task_queue.task_done()
|
||||
|
||||
except asyncio.TimeoutError:
|
||||
# No task available, continue loop
|
||||
continue
|
||||
except asyncio.CancelledError:
|
||||
logger.info("Worker task cancelled")
|
||||
break
|
||||
except Exception as e:
|
||||
logger.exception(f"Error in background worker: {e}")
|
||||
# Continue processing other tasks
|
||||
continue
|
||||
|
||||
logger.info("Background worker stopped")
|
||||
|
||||
async def _load_series_data(self, task: SeriesLoadingTask) -> None:
|
||||
"""Load all missing data for a series.
|
||||
|
||||
Orchestrates loading by calling existing services (AnimeService, NFOService)
|
||||
rather than reimplementing logic. Updates status and broadcasts progress.
|
||||
|
||||
Args:
|
||||
task: The loading task to process
|
||||
"""
|
||||
try:
|
||||
# Get database session
|
||||
from src.server.database.connection import get_db_session
|
||||
from src.server.database.service import AnimeSeriesService
|
||||
|
||||
async for db in get_db_session():
|
||||
try:
|
||||
# Check what data is missing
|
||||
missing = await self.check_missing_data(
|
||||
task.key,
|
||||
task.folder,
|
||||
self.series_app.directory_to_search,
|
||||
db
|
||||
)
|
||||
|
||||
# Load episodes if missing
|
||||
if missing["episodes"]:
|
||||
await self._load_episodes(task, db)
|
||||
else:
|
||||
task.progress["episodes"] = True
|
||||
|
||||
# Load NFO and images if missing
|
||||
if missing["nfo"] or missing["logo"] or missing["images"]:
|
||||
await self._load_nfo_and_images(task, db)
|
||||
else:
|
||||
task.progress["nfo"] = True
|
||||
task.progress["logo"] = True
|
||||
task.progress["images"] = True
|
||||
|
||||
# Mark as completed
|
||||
task.status = LoadingStatus.COMPLETED
|
||||
task.completed_at = datetime.now(timezone.utc)
|
||||
|
||||
# Update database
|
||||
series_db = await AnimeSeriesService.get_by_key(db, task.key)
|
||||
if series_db:
|
||||
series_db.loading_status = "completed"
|
||||
series_db.loading_completed_at = task.completed_at
|
||||
series_db.loading_error = None
|
||||
await db.commit()
|
||||
|
||||
# Broadcast completion
|
||||
await self._broadcast_status(task)
|
||||
|
||||
logger.info(f"Successfully loaded all data for series: {task.key}")
|
||||
|
||||
except Exception as e:
|
||||
logger.exception(f"Error loading series data: {e}")
|
||||
task.status = LoadingStatus.FAILED
|
||||
task.error = str(e)
|
||||
task.completed_at = datetime.now(timezone.utc)
|
||||
|
||||
# Update database with error
|
||||
series_db = await AnimeSeriesService.get_by_key(db, task.key)
|
||||
if series_db:
|
||||
series_db.loading_status = "failed"
|
||||
series_db.loading_error = str(e)
|
||||
series_db.loading_completed_at = task.completed_at
|
||||
await db.commit()
|
||||
|
||||
# Broadcast error
|
||||
await self._broadcast_status(task)
|
||||
|
||||
break # Exit async for loop after first iteration
|
||||
|
||||
finally:
|
||||
# Remove from active tasks
|
||||
self.active_tasks.pop(task.key, None)
|
||||
|
||||
async def _load_episodes(self, task: SeriesLoadingTask, db: Any) -> None:
|
||||
"""Load episodes for a series by reusing AnimeService.
|
||||
|
||||
Args:
|
||||
task: The loading task
|
||||
db: Database session
|
||||
"""
|
||||
task.status = LoadingStatus.LOADING_EPISODES
|
||||
await self._broadcast_status(task, "Loading episodes...")
|
||||
|
||||
try:
|
||||
# Use existing AnimeService to rescan episodes
|
||||
# This reuses all existing episode detection logic
|
||||
await self.anime_service.rescan()
|
||||
|
||||
# Update task progress
|
||||
task.progress["episodes"] = True
|
||||
|
||||
# Update database
|
||||
from src.server.database.service import AnimeSeriesService
|
||||
series_db = await AnimeSeriesService.get_by_key(db, task.key)
|
||||
if series_db:
|
||||
series_db.episodes_loaded = True
|
||||
series_db.loading_status = "loading_episodes"
|
||||
await db.commit()
|
||||
|
||||
logger.info(f"Episodes loaded for series: {task.key}")
|
||||
|
||||
except Exception as e:
|
||||
logger.exception(f"Failed to load episodes for {task.key}: {e}")
|
||||
raise
|
||||
|
||||
async def _load_nfo_and_images(self, task: SeriesLoadingTask, db: Any) -> None:
|
||||
"""Load NFO file and images for a series by reusing NFOService.
|
||||
|
||||
Args:
|
||||
task: The loading task
|
||||
db: Database session
|
||||
"""
|
||||
task.status = LoadingStatus.LOADING_NFO
|
||||
await self._broadcast_status(task, "Generating NFO file...")
|
||||
|
||||
try:
|
||||
# Check if NFOService is available
|
||||
if not self.series_app.nfo_service:
|
||||
logger.warning(
|
||||
f"NFOService not available, skipping NFO/images for {task.key}"
|
||||
)
|
||||
task.progress["nfo"] = False
|
||||
task.progress["logo"] = False
|
||||
task.progress["images"] = False
|
||||
return
|
||||
|
||||
# Use existing NFOService to create NFO with all images
|
||||
# This reuses all existing TMDB API logic and image downloading
|
||||
nfo_path = await self.series_app.nfo_service.create_tvshow_nfo(
|
||||
serie_name=task.name,
|
||||
serie_folder=task.folder,
|
||||
year=task.year,
|
||||
download_poster=True,
|
||||
download_logo=True,
|
||||
download_fanart=True
|
||||
)
|
||||
|
||||
# Update task progress
|
||||
task.progress["nfo"] = True
|
||||
task.progress["logo"] = True
|
||||
task.progress["images"] = True
|
||||
|
||||
# Update database
|
||||
from src.server.database.service import AnimeSeriesService
|
||||
series_db = await AnimeSeriesService.get_by_key(db, task.key)
|
||||
if series_db:
|
||||
series_db.has_nfo = True
|
||||
series_db.nfo_created_at = datetime.now(timezone.utc)
|
||||
series_db.logo_loaded = True
|
||||
series_db.images_loaded = True
|
||||
series_db.loading_status = "loading_nfo"
|
||||
await db.commit()
|
||||
|
||||
logger.info(f"NFO and images loaded for series: {task.key}")
|
||||
|
||||
except Exception as e:
|
||||
logger.exception(f"Failed to load NFO/images for {task.key}: {e}")
|
||||
# Don't fail the entire task if NFO fails
|
||||
task.progress["nfo"] = False
|
||||
task.progress["logo"] = False
|
||||
task.progress["images"] = False
|
||||
|
||||
async def _broadcast_status(
|
||||
self,
|
||||
task: SeriesLoadingTask,
|
||||
message: Optional[str] = None
|
||||
) -> None:
|
||||
"""Broadcast loading status update via WebSocket.
|
||||
|
||||
Args:
|
||||
task: The loading task
|
||||
message: Optional status message
|
||||
"""
|
||||
if not message:
|
||||
if task.status == LoadingStatus.PENDING:
|
||||
message = "Queued for loading..."
|
||||
elif task.status == LoadingStatus.LOADING_EPISODES:
|
||||
message = "Loading episodes..."
|
||||
elif task.status == LoadingStatus.LOADING_NFO:
|
||||
message = "Generating NFO file..."
|
||||
elif task.status == LoadingStatus.COMPLETED:
|
||||
message = "All data loaded successfully"
|
||||
elif task.status == LoadingStatus.FAILED:
|
||||
message = f"Loading failed: {task.error}"
|
||||
else:
|
||||
message = "Loading..."
|
||||
|
||||
payload = {
|
||||
"type": "series_loading_update",
|
||||
"key": task.key,
|
||||
"folder": task.folder,
|
||||
"loading_status": task.status.value,
|
||||
"progress": task.progress,
|
||||
"message": message,
|
||||
"timestamp": datetime.now(timezone.utc).isoformat(),
|
||||
"error": task.error
|
||||
}
|
||||
|
||||
await self.websocket_service.broadcast(payload)
|
||||
|
||||
|
||||
# Singleton instance
|
||||
_background_loader_service: Optional[BackgroundLoaderService] = None
|
||||
|
||||
|
||||
def init_background_loader_service(
|
||||
websocket_service: WebSocketService,
|
||||
anime_service: Any,
|
||||
series_app: Any
|
||||
) -> BackgroundLoaderService:
|
||||
"""Initialize the background loader service singleton.
|
||||
|
||||
Args:
|
||||
websocket_service: WebSocket service for broadcasts
|
||||
anime_service: AnimeService instance
|
||||
series_app: SeriesApp instance
|
||||
|
||||
Returns:
|
||||
BackgroundLoaderService instance
|
||||
"""
|
||||
global _background_loader_service
|
||||
|
||||
if _background_loader_service is None:
|
||||
_background_loader_service = BackgroundLoaderService(
|
||||
websocket_service=websocket_service,
|
||||
anime_service=anime_service,
|
||||
series_app=series_app
|
||||
)
|
||||
|
||||
return _background_loader_service
|
||||
|
||||
|
||||
def get_background_loader_service() -> BackgroundLoaderService:
|
||||
"""Get the background loader service singleton.
|
||||
|
||||
Returns:
|
||||
BackgroundLoaderService instance
|
||||
|
||||
Raises:
|
||||
RuntimeError: If service not initialized
|
||||
"""
|
||||
if _background_loader_service is None:
|
||||
raise RuntimeError(
|
||||
"BackgroundLoaderService not initialized. "
|
||||
"Call init_background_loader_service() first."
|
||||
)
|
||||
|
||||
return _background_loader_service
|
||||
@@ -27,6 +27,7 @@ logger = logging.getLogger(__name__)
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from src.server.services.anime_service import AnimeService
|
||||
from src.server.services.background_loader_service import BackgroundLoaderService
|
||||
from src.server.services.download_service import DownloadService
|
||||
|
||||
# Security scheme for JWT authentication
|
||||
@@ -40,6 +41,7 @@ _series_app: Optional[SeriesApp] = None
|
||||
# Global service instances
|
||||
_anime_service: Optional["AnimeService"] = None
|
||||
_download_service: Optional["DownloadService"] = None
|
||||
_background_loader_service: Optional["BackgroundLoaderService"] = None
|
||||
|
||||
|
||||
@dataclass
|
||||
@@ -452,3 +454,51 @@ def reset_download_service() -> None:
|
||||
"""Reset global DownloadService instance (for testing/config changes)."""
|
||||
global _download_service
|
||||
_download_service = None
|
||||
|
||||
|
||||
def get_background_loader_service() -> "BackgroundLoaderService":
|
||||
"""
|
||||
Dependency to get BackgroundLoaderService instance.
|
||||
|
||||
Returns:
|
||||
BackgroundLoaderService: The background loader service for async data loading
|
||||
|
||||
Raises:
|
||||
HTTPException: If BackgroundLoaderService initialization fails
|
||||
"""
|
||||
global _background_loader_service
|
||||
|
||||
if _background_loader_service is None:
|
||||
try:
|
||||
from src.server.services.background_loader_service import (
|
||||
BackgroundLoaderService,
|
||||
)
|
||||
from src.server.services.websocket_service import get_websocket_service
|
||||
|
||||
anime_service = get_anime_service()
|
||||
series_app = get_series_app()
|
||||
websocket_service = get_websocket_service()
|
||||
|
||||
_background_loader_service = BackgroundLoaderService(
|
||||
websocket_service=websocket_service,
|
||||
anime_service=anime_service,
|
||||
series_app=series_app
|
||||
)
|
||||
except HTTPException:
|
||||
raise
|
||||
except Exception as e:
|
||||
raise HTTPException(
|
||||
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
||||
detail=(
|
||||
"Failed to initialize BackgroundLoaderService: "
|
||||
f"{str(e)}"
|
||||
),
|
||||
) from e
|
||||
|
||||
return _background_loader_service
|
||||
|
||||
|
||||
def reset_background_loader_service() -> None:
|
||||
"""Reset global BackgroundLoaderService instance (for testing/config changes)."""
|
||||
global _background_loader_service
|
||||
_background_loader_service = None
|
||||
|
||||
201
tests/unit/test_background_loader_service.py
Normal file
201
tests/unit/test_background_loader_service.py
Normal file
@@ -0,0 +1,201 @@
|
||||
"""Unit tests for BackgroundLoaderService.
|
||||
|
||||
Tests task queuing, status tracking, and worker logic in isolation.
|
||||
"""
|
||||
import asyncio
|
||||
from datetime import datetime
|
||||
from unittest.mock import AsyncMock, Mock, patch
|
||||
|
||||
import pytest
|
||||
|
||||
from src.server.services.background_loader_service import (
|
||||
BackgroundLoaderService,
|
||||
LoadingStatus,
|
||||
SeriesLoadingTask,
|
||||
)
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def mock_websocket_service():
|
||||
"""Mock WebSocket service."""
|
||||
service = Mock()
|
||||
service.broadcast = AsyncMock()
|
||||
return service
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def mock_anime_service():
|
||||
"""Mock anime service."""
|
||||
service = Mock()
|
||||
service.rescan = AsyncMock()
|
||||
return service
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def mock_series_app():
|
||||
"""Mock SeriesApp."""
|
||||
app = Mock()
|
||||
app.directory_to_search = "/test/anime"
|
||||
app.nfo_service = Mock()
|
||||
app.nfo_service.create_tvshow_nfo = AsyncMock()
|
||||
return app
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
async def background_loader(mock_websocket_service, mock_anime_service, mock_series_app):
|
||||
"""Create BackgroundLoaderService instance."""
|
||||
service = BackgroundLoaderService(
|
||||
websocket_service=mock_websocket_service,
|
||||
anime_service=mock_anime_service,
|
||||
series_app=mock_series_app
|
||||
)
|
||||
yield service
|
||||
await service.stop()
|
||||
|
||||
|
||||
class TestBackgroundLoaderService:
|
||||
"""Test suite for BackgroundLoaderService."""
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_service_initialization(self, background_loader):
|
||||
"""Test service initializes correctly."""
|
||||
assert background_loader.task_queue is not None
|
||||
assert isinstance(background_loader.active_tasks, dict)
|
||||
assert len(background_loader.active_tasks) == 0
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_start_worker(self, background_loader):
|
||||
"""Test worker starts successfully."""
|
||||
await background_loader.start()
|
||||
assert background_loader.worker_task is not None
|
||||
assert not background_loader.worker_task.done()
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_stop_worker_gracefully(self, background_loader):
|
||||
"""Test worker stops gracefully."""
|
||||
await background_loader.start()
|
||||
await background_loader.stop()
|
||||
assert background_loader.worker_task.done()
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_add_series_loading_task(self, background_loader):
|
||||
"""Test adding a series to the loading queue."""
|
||||
await background_loader.add_series_loading_task(
|
||||
key="test-series",
|
||||
folder="Test Series",
|
||||
name="Test Series",
|
||||
year=2024
|
||||
)
|
||||
|
||||
# Verify task in active tasks
|
||||
assert "test-series" in background_loader.active_tasks
|
||||
task = background_loader.active_tasks["test-series"]
|
||||
assert task.key == "test-series"
|
||||
assert task.status == LoadingStatus.PENDING
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_duplicate_task_handling(self, background_loader):
|
||||
"""Test that duplicate tasks for same series are handled correctly."""
|
||||
key = "test-series"
|
||||
|
||||
await background_loader.add_series_loading_task(
|
||||
key=key,
|
||||
folder="Test Series",
|
||||
name="Test Series"
|
||||
)
|
||||
await background_loader.add_series_loading_task(
|
||||
key=key,
|
||||
folder="Test Series",
|
||||
name="Test Series"
|
||||
)
|
||||
|
||||
# Verify only one task exists
|
||||
assert len([k for k in background_loader.active_tasks if k == key]) == 1
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_check_missing_data_all_missing(
|
||||
self,
|
||||
background_loader,
|
||||
mock_series_app
|
||||
):
|
||||
"""Test checking for missing data when all data is missing."""
|
||||
with patch('src.server.database.service.AnimeSeriesService.get_by_key') as mock_get:
|
||||
mock_series = Mock()
|
||||
mock_series.episodes_loaded = False
|
||||
mock_series.has_nfo = False
|
||||
mock_series.logo_loaded = False
|
||||
mock_series.images_loaded = False
|
||||
mock_get.return_value = mock_series
|
||||
|
||||
mock_db = AsyncMock()
|
||||
|
||||
missing_data = await background_loader.check_missing_data(
|
||||
key="test-series",
|
||||
folder="Test Series",
|
||||
anime_directory="/test/anime",
|
||||
db=mock_db
|
||||
)
|
||||
|
||||
assert missing_data["episodes"] is True
|
||||
assert missing_data["nfo"] is True
|
||||
assert missing_data["logo"] is True
|
||||
assert missing_data["images"] is True
|
||||
|
||||
@pytest.mark.asyncio
|
||||
async def test_broadcast_status(self, background_loader, mock_websocket_service):
|
||||
"""Test status broadcasting via WebSocket."""
|
||||
task = SeriesLoadingTask(
|
||||
key="test-series",
|
||||
folder="Test Series",
|
||||
name="Test Series",
|
||||
status=LoadingStatus.LOADING_EPISODES
|
||||
)
|
||||
|
||||
await background_loader._broadcast_status(task)
|
||||
|
||||
# Verify broadcast was called
|
||||
mock_websocket_service.broadcast.assert_called_once()
|
||||
|
||||
# Verify message structure
|
||||
call_args = mock_websocket_service.broadcast.call_args[0][0]
|
||||
assert call_args["type"] == "series_loading_update"
|
||||
assert call_args["key"] == "test-series"
|
||||
assert call_args["loading_status"] == "loading_episodes"
|
||||
|
||||
|
||||
class TestSeriesLoadingTask:
|
||||
"""Test SeriesLoadingTask model."""
|
||||
|
||||
def test_task_initialization(self):
|
||||
"""Test task initializes with correct defaults."""
|
||||
task = SeriesLoadingTask(
|
||||
key="test",
|
||||
folder="Test",
|
||||
name="Test"
|
||||
)
|
||||
|
||||
assert task.key == "test"
|
||||
assert task.status == LoadingStatus.PENDING
|
||||
assert not any(task.progress.values())
|
||||
|
||||
def test_task_progress_tracking(self):
|
||||
"""Test progress tracking updates correctly."""
|
||||
task = SeriesLoadingTask(
|
||||
key="test",
|
||||
folder="Test",
|
||||
name="Test"
|
||||
)
|
||||
|
||||
task.progress["episodes"] = True
|
||||
assert task.progress["episodes"] is True
|
||||
assert not task.progress["nfo"]
|
||||
assert not task.progress["logo"]
|
||||
assert not task.progress["images"]
|
||||
|
||||
def test_loading_status_enum(self):
|
||||
"""Test LoadingStatus enum values."""
|
||||
assert LoadingStatus.PENDING == "pending"
|
||||
assert LoadingStatus.LOADING_EPISODES == "loading_episodes"
|
||||
assert LoadingStatus.LOADING_NFO == "loading_nfo"
|
||||
assert LoadingStatus.COMPLETED == "completed"
|
||||
assert LoadingStatus.FAILED == "failed"
|
||||
Reference in New Issue
Block a user