/**
 * AniWorld - Search Module
 *
 * Handles anime search functionality and result display.
 *
 * Dependencies: constants.js, api-client.js, ui-utils.js, series-manager.js
 */

var AniWorld = window.AniWorld || {};

AniWorld.Search = (function() {
    'use strict';

    const API = AniWorld.Constants.API;

    /**
     * Initialize the search module
     */
    function init() {
        bindEvents();
    }

    /**
     * Bind UI events
     */
    function bindEvents() {
        const searchInput = document.getElementById('search-input');
        const searchBtn = document.getElementById('search-btn');
        const clearSearch = document.getElementById('clear-search');

        if (searchBtn) {
            searchBtn.addEventListener('click', performSearch);
        }

        if (searchInput) {
            searchInput.addEventListener('keypress', function(e) {
                if (e.key === 'Enter') {
                    performSearch();
                }
            });
        }

        if (clearSearch) {
            clearSearch.addEventListener('click', function() {
                if (searchInput) searchInput.value = '';
                hideSearchResults();
            });
        }
    }

    /**
     * Perform anime search
     */
    async function performSearch() {
        const searchInput = document.getElementById('search-input');
        const query = searchInput ? searchInput.value.trim() : '';

        if (!query) {
            AniWorld.UI.showToast('Please enter a search term', 'warning');
            return;
        }

        try {
            AniWorld.UI.showLoading();

            const response = await AniWorld.ApiClient.post(API.ANIME_SEARCH, { query: query });

            if (!response) return;
            const data = await response.json();

            // Check if response is a direct array (new format) or wrapped object (legacy)
            if (Array.isArray(data)) {
                displaySearchResults(data);
            } else if (data.status === 'success') {
                displaySearchResults(data.results);
            } else {
                AniWorld.UI.showToast('Search error: ' + (data.message || 'Unknown error'), 'error');
            }
        } catch (error) {
            console.error('Search error:', error);
            AniWorld.UI.showToast('Search failed', 'error');
        } finally {
            AniWorld.UI.hideLoading();
        }
    }

    /**
     * Display search results
     * @param {Array} results - Search results array
     */
    function displaySearchResults(results) {
        const resultsContainer = document.getElementById('search-results');
        const resultsList = document.getElementById('search-results-list');

        if (results.length === 0) {
            resultsContainer.classList.add('hidden');
            AniWorld.UI.showToast('No search results found', 'warning');
            return;
        }

        resultsList.innerHTML = results.map(function(result) {
            const displayName = AniWorld.UI.getDisplayName(result);
            return '<div class="search-result-item">' +
                '<span class="search-result-name">' + AniWorld.UI.escapeHtml(displayName) + '</span>' +
                '<button class="btn btn-small btn-primary" ' +
                'onclick="AniWorld.Search.addSeries(\'' + AniWorld.UI.escapeHtml(result.link) + '\', \'' +
                AniWorld.UI.escapeHtml(displayName) + '\')">' +
                '<i class="fas fa-plus"></i> Add' +
                '</button>' +
                '</div>';
        }).join('');

        resultsContainer.classList.remove('hidden');
    }

    /**
     * Hide search results
     */
    function hideSearchResults() {
        document.getElementById('search-results').classList.add('hidden');
    }

    /**
     * Add a series from search results
     * @param {string} link - Series link
     * @param {string} name - Series name
     */
    async function addSeries(link, name) {
        try {
            const response = await AniWorld.ApiClient.post(API.ANIME_ADD, { link: link, name: name });

            if (!response) return;
            const data = await response.json();

            if (data.status === 'success') {
                AniWorld.UI.showToast(data.message, 'success');
                AniWorld.SeriesManager.loadSeries();
                hideSearchResults();
                document.getElementById('search-input').value = '';
            } else {
                AniWorld.UI.showToast('Error adding series: ' + data.message, 'error');
            }
        } catch (error) {
            console.error('Error adding series:', error);
            AniWorld.UI.showToast('Failed to add series', 'error');
        }
    }

    // Public API
    return {
        init: init,
        performSearch: performSearch,
        hideSearchResults: hideSearchResults,
        addSeries: addSeries
    };
})();