Merge Map tab into Server tab and remove Map tab

The Map tab provided a form for editing world-map color thresholds
(low, medium, high). Moving this into the Server tab consolidates all
server-side configuration in one place.

- Add map color thresholds section to ServerTab with full validation
- Load map thresholds on component mount with useEffect
- Implement auto-save for threshold changes via useAutoSave hook
- Display threshold color interpolation guide
- Remove MapTab component import from ConfigPage
- Remove 'map' from TabValue type
- Remove Map tab element from TabList
- Remove conditional render for MapTab
- Remove MapTab from barrel export (index.ts)
- Delete MapTab.tsx file
- Update ConfigPage test to remove MapTab mock

All 123 frontend tests pass.

frontend/src/components/config/MapTab.tsx

@@ -1,212 +0,0 @@
-/**
- * MapTab — world map color threshold configuration editor.
- *
- * Allows the user to set the low / medium / high ban-count thresholds
- * that drive country fill colors on the World Map page.
- */
-
-import { useCallback, useEffect, useMemo, useState } from "react";
-import {
-  Field,
-  Input,
-  MessageBar,
-  MessageBarBody,
-  Skeleton,
-  SkeletonItem,
-  Text,
-  tokens,
-} from "@fluentui/react-components";
-import { ApiError } from "../../api/client";
-import {
-  fetchMapColorThresholds,
-  updateMapColorThresholds,
-} from "../../api/config";
-import type { MapColorThresholdsResponse, MapColorThresholdsUpdate } from "../../types/config";
-import { useAutoSave } from "../../hooks/useAutoSave";
-import { AutoSaveIndicator } from "./AutoSaveIndicator";
-import { useConfigStyles } from "./configStyles";
-
-// ---------------------------------------------------------------------------
-// Inner form — only mounted after data is loaded.
-// ---------------------------------------------------------------------------
-
-interface MapFormProps {
-  initial: MapColorThresholdsResponse;
-}
-
-function MapForm({ initial }: MapFormProps): React.JSX.Element {
-  const styles = useConfigStyles();
-  const [thresholdHigh, setThresholdHigh] = useState(String(initial.threshold_high));
-  const [thresholdMedium, setThresholdMedium] = useState(String(initial.threshold_medium));
-  const [thresholdLow, setThresholdLow] = useState(String(initial.threshold_low));
-
-  const high = Number(thresholdHigh);
-  const medium = Number(thresholdMedium);
-  const low = Number(thresholdLow);
-
-  const validationError = useMemo<string | null>(() => {
-    if (isNaN(high) || isNaN(medium) || isNaN(low))
-      return "All thresholds must be valid numbers.";
-    if (high <= 0 || medium <= 0 || low <= 0)
-      return "All thresholds must be positive integers.";
-    if (!(high > medium && medium > low))
-      return "Thresholds must satisfy: high > medium > low.";
-    return null;
-  }, [high, medium, low]);
-
-  // Only pass a new payload to useAutoSave when all values are valid.
-  const [validPayload, setValidPayload] = useState<MapColorThresholdsUpdate>({
-    threshold_high: initial.threshold_high,
-    threshold_medium: initial.threshold_medium,
-    threshold_low: initial.threshold_low,
-  });
-
-  useEffect(() => {
-    if (validationError !== null) return;
-    setValidPayload({ threshold_high: high, threshold_medium: medium, threshold_low: low });
-  }, [high, medium, low, validationError]);
-
-  const saveThresholds = useCallback(
-    async (payload: MapColorThresholdsUpdate): Promise<void> => {
-      await updateMapColorThresholds(payload);
-    },
-    [],
-  );
-
-  const { status: saveStatus, errorText: saveErrorText, retry: retrySave } =
-    useAutoSave(validPayload, saveThresholds);
-
-  return (
-    <div>
-      <div className={styles.sectionCard}>
-        <Text as="h3" size={500} weight="semibold" block>
-          Map Color Thresholds
-        </Text>
-        <Text
-          as="p"
-          size={300}
-          className={styles.infoText}
-          block
-          style={{ marginBottom: tokens.spacingVerticalM }}
-        >
-          Configure the ban count thresholds that determine country fill colors on
-          the World Map. Countries with zero bans remain transparent. Colors
-          smoothly interpolate between thresholds.
-        </Text>
-
-        <div style={{ marginBottom: tokens.spacingVerticalS }}>
-          <AutoSaveIndicator
-            status={validationError ? "idle" : saveStatus}
-            errorText={saveErrorText}
-            onRetry={retrySave}
-          />
-        </div>
-
-        {validationError && (
-          <MessageBar intent="error" style={{ marginBottom: tokens.spacingVerticalS }}>
-            <MessageBarBody>{validationError}</MessageBarBody>
-          </MessageBar>
-        )}
-
-        <div className={styles.fieldRowThree}>
-          <Field label="Low Threshold (Green)" required>
-            <Input
-              type="number"
-              value={thresholdLow}
-              onChange={(_, d) => {
-                setThresholdLow(d.value);
-              }}
-              min={1}
-            />
-          </Field>
-          <Field label="Medium Threshold (Yellow)" required>
-            <Input
-              type="number"
-              value={thresholdMedium}
-              onChange={(_, d) => {
-                setThresholdMedium(d.value);
-              }}
-              min={1}
-            />
-          </Field>
-          <Field label="High Threshold (Red)" required>
-            <Input
-              type="number"
-              value={thresholdHigh}
-              onChange={(_, d) => {
-                setThresholdHigh(d.value);
-              }}
-              min={1}
-            />
-          </Field>
-        </div>
-
-        <Text
-          as="p"
-          size={200}
-          className={styles.infoText}
-          style={{ marginTop: tokens.spacingVerticalS }}
-        >
-          • 1 to {thresholdLow}: Light green → Full green
-          <br />• {thresholdLow} to {thresholdMedium}: Green → Yellow
-          <br />• {thresholdMedium} to {thresholdHigh}: Yellow → Red
-          <br />• {thresholdHigh}+: Solid red
-        </Text>
-      </div>
-    </div>
-  );
-}
-
-// ---------------------------------------------------------------------------
-// Outer loader component.
-// ---------------------------------------------------------------------------
-
-/**
- * Tab component for editing world-map ban-count color thresholds.
- *
- * @returns JSX element.
- */
-export function MapTab(): React.JSX.Element {
-  const [thresholds, setThresholds] = useState<MapColorThresholdsResponse | null>(null);
-  const [loadError, setLoadError] = useState<string | null>(null);
-
-  const load = useCallback(async (): Promise<void> => {
-    try {
-      const data = await fetchMapColorThresholds();
-      setThresholds(data);
-    } catch (err) {
-      setLoadError(
-        err instanceof ApiError ? err.message : "Failed to load map color thresholds",
-      );
-    }
-  }, []);
-
-  useEffect(() => {
-    void load();
-  }, [load]);
-
-  if (!thresholds && !loadError) {
-    return (
-      <Skeleton aria-label="Loading map settings…">
-        <div style={{ display: "grid", gridTemplateColumns: "1fr 1fr 1fr", gap: 8 }}>
-          <SkeletonItem size={32} />
-          <SkeletonItem size={32} />
-          <SkeletonItem size={32} />
-        </div>
-      </Skeleton>
-    );
-  }
-
-  if (loadError)
-    return (
-      <MessageBar intent="error">
-        <MessageBarBody>{loadError}</MessageBarBody>
-      </MessageBar>
-    );
-
-  if (!thresholds) return <></>;
-
-  return <MapForm initial={thresholds} />;
-}
-
-

frontend/src/components/config/ServerTab.tsx

@@ -2,10 +2,11 @@
  * ServerTab — fail2ban server-level settings editor.
  *
  * Provides form fields for live server settings (log level, log target,
- * DB purge age, DB max matches) and a "Flush Logs" action button.
+ * DB purge age, DB max matches), a "Flush Logs" action button, and
+ * world map color threshold configuration.
  */
 
-import { useCallback, useMemo, useState } from "react";
+import { useCallback, useEffect, useMemo, useState } from "react";
 import {
   Button,
   Field,
@@ -15,15 +16,20 @@ import {
   Select,
   Skeleton,
   SkeletonItem,
+  Text,
   tokens,
 } from "@fluentui/react-components";
 import {
   DocumentArrowDown24Regular,
 } from "@fluentui/react-icons";
 import { ApiError } from "../../api/client";
-import type { ServerSettingsUpdate } from "../../types/config";
+import type { ServerSettingsUpdate, MapColorThresholdsResponse, MapColorThresholdsUpdate } from "../../types/config";
 import { useServerSettings } from "../../hooks/useConfig";
 import { useAutoSave } from "../../hooks/useAutoSave";
+import {
+  fetchMapColorThresholds,
+  updateMapColorThresholds,
+} from "../../api/config";
 import { AutoSaveIndicator } from "./AutoSaveIndicator";
 import { useConfigStyles } from "./configStyles";
 
@@ -46,6 +52,13 @@ export function ServerTab(): React.JSX.Element {
   const [flushing, setFlushing] = useState(false);
   const [msg, setMsg] = useState<{ text: string; ok: boolean } | null>(null);
 
+  // Map color thresholds
+  const [mapThresholds, setMapThresholds] = useState<MapColorThresholdsResponse | null>(null);
+  const [mapThresholdHigh, setMapThresholdHigh] = useState("");
+  const [mapThresholdMedium, setMapThresholdMedium] = useState("");
+  const [mapThresholdLow, setMapThresholdLow] = useState("");
+  const [mapLoadError, setMapLoadError] = useState<string | null>(null);
+
   const effectiveLogLevel = logLevel || settings?.log_level || "";
   const effectiveLogTarget = logTarget || settings?.log_target || "";
   const effectiveDbPurgeAge =
@@ -83,6 +96,67 @@ export function ServerTab(): React.JSX.Element {
     }
   }, [flush]);
 
+  // Load map color thresholds on mount.
+  const loadMapThresholds = useCallback(async (): Promise<void> => {
+    try {
+      const data = await fetchMapColorThresholds();
+      setMapThresholds(data);
+      setMapThresholdHigh(String(data.threshold_high));
+      setMapThresholdMedium(String(data.threshold_medium));
+      setMapThresholdLow(String(data.threshold_low));
+      setMapLoadError(null);
+    } catch (err) {
+      setMapLoadError(
+        err instanceof ApiError ? err.message : "Failed to load map color thresholds",
+      );
+    }
+  }, []);
+
+  useEffect(() => {
+    void loadMapThresholds();
+  }, [loadMapThresholds]);
+
+  // Map threshold validation and auto-save.
+  const mapHigh = Number(mapThresholdHigh);
+  const mapMedium = Number(mapThresholdMedium);
+  const mapLow = Number(mapThresholdLow);
+
+  const mapValidationError = useMemo<string | null>(() => {
+    if (!mapThresholds) return null;
+    if (isNaN(mapHigh) || isNaN(mapMedium) || isNaN(mapLow))
+      return "All thresholds must be valid numbers.";
+    if (mapHigh <= 0 || mapMedium <= 0 || mapLow <= 0)
+      return "All thresholds must be positive integers.";
+    if (!(mapHigh > mapMedium && mapMedium > mapLow))
+      return "Thresholds must satisfy: high > medium > low.";
+    return null;
+  }, [mapHigh, mapMedium, mapLow, mapThresholds]);
+
+  const [mapValidPayload, setMapValidPayload] = useState<MapColorThresholdsUpdate>({
+    threshold_high: mapThresholds?.threshold_high ?? 0,
+    threshold_medium: mapThresholds?.threshold_medium ?? 0,
+    threshold_low: mapThresholds?.threshold_low ?? 0,
+  });
+
+  useEffect(() => {
+    if (mapValidationError !== null || !mapThresholds) return;
+    setMapValidPayload({
+      threshold_high: mapHigh,
+      threshold_medium: mapMedium,
+      threshold_low: mapLow,
+    });
+  }, [mapHigh, mapMedium, mapLow, mapValidationError, mapThresholds]);
+
+  const saveMapThresholds = useCallback(
+    async (payload: MapColorThresholdsUpdate): Promise<void> => {
+      await updateMapColorThresholds(payload);
+    },
+    [],
+  );
+
+  const { status: mapSaveStatus, errorText: mapSaveErrorText, retry: retryMapSave } =
+    useAutoSave(mapValidPayload, saveMapThresholds);
+
   if (loading) {
     return (
       <Skeleton aria-label="Loading server settings…">
@@ -195,6 +269,91 @@ export function ServerTab(): React.JSX.Element {
           </MessageBar>
         )}
       </div>
+
+      {/* Map Color Thresholds section */}
+      {mapLoadError ? (
+        <div className={styles.sectionCard}>
+          <MessageBar intent="error">
+            <MessageBarBody>{mapLoadError}</MessageBarBody>
+          </MessageBar>
+        </div>
+      ) : mapThresholds ? (
+        <div className={styles.sectionCard}>
+          <Text as="h3" size={500} weight="semibold" block>
+            Map Color Thresholds
+          </Text>
+          <Text
+            as="p"
+            size={300}
+            className={styles.infoText}
+            block
+            style={{ marginBottom: tokens.spacingVerticalM }}
+          >
+            Configure the ban count thresholds that determine country fill colors on
+            the World Map. Countries with zero bans remain transparent. Colors
+            smoothly interpolate between thresholds.
+          </Text>
+
+          <div style={{ marginBottom: tokens.spacingVerticalS }}>
+            <AutoSaveIndicator
+              status={mapValidationError ? "idle" : mapSaveStatus}
+              errorText={mapSaveErrorText}
+              onRetry={retryMapSave}
+            />
+          </div>
+
+          {mapValidationError && (
+            <MessageBar intent="error" style={{ marginBottom: tokens.spacingVerticalS }}>
+              <MessageBarBody>{mapValidationError}</MessageBarBody>
+            </MessageBar>
+          )}
+
+          <div className={styles.fieldRowThree}>
+            <Field label="Low Threshold (Green)" required>
+              <Input
+                type="number"
+                value={mapThresholdLow}
+                onChange={(_, d) => {
+                  setMapThresholdLow(d.value);
+                }}
+                min={1}
+              />
+            </Field>
+            <Field label="Medium Threshold (Yellow)" required>
+              <Input
+                type="number"
+                value={mapThresholdMedium}
+                onChange={(_, d) => {
+                  setMapThresholdMedium(d.value);
+                }}
+                min={1}
+              />
+            </Field>
+            <Field label="High Threshold (Red)" required>
+              <Input
+                type="number"
+                value={mapThresholdHigh}
+                onChange={(_, d) => {
+                  setMapThresholdHigh(d.value);
+                }}
+                min={1}
+              />
+            </Field>
+          </div>
+
+          <Text
+            as="p"
+            size={200}
+            className={styles.infoText}
+            style={{ marginTop: tokens.spacingVerticalS }}
+          >
+            • 1 to {mapThresholdLow}: Light green → Full green
+            <br />• {mapThresholdLow} to {mapThresholdMedium}: Green → Yellow
+            <br />• {mapThresholdMedium} to {mapThresholdHigh}: Yellow → Red
+            <br />• {mapThresholdHigh}+: Solid red
+          </Text>
+        </div>
+      ) : null}
     </div>
   );
 }

frontend/src/components/config/index.ts

@@ -34,7 +34,6 @@ export { JailFilesTab } from "./JailFilesTab";
 export { JailFileForm } from "./JailFileForm";
 export { JailsTab } from "./JailsTab";
 export { LogTab } from "./LogTab";
-export { MapTab } from "./MapTab";
 export { RawConfigSection } from "./RawConfigSection";
 export type { RawConfigSectionProps } from "./RawConfigSection";
 export { RegexList } from "./RegexList";

frontend/src/pages/ConfigPage.tsx

@@ -8,8 +8,7 @@
  *   Jails        — per-jail config accordion with inline editing
  *   Filters      — structured filter.d form editor
  *   Actions      — structured action.d form editor
- *   Server       — server-level settings, logging, database config + flush logs
+ *   Server       — server-level settings, logging, database config, map thresholds + flush logs
- *   Map          — map color threshold configuration
  *   Regex Tester — live pattern tester
  *   Export       — raw file editors for jail, filter, and action files
  */
@@ -21,7 +20,6 @@ import {
   FiltersTab,
   JailsTab,
   LogTab,
-  MapTab,
   RegexTesterTab,
   ServerTab,
 } from "../components/config";
@@ -57,7 +55,6 @@ type TabValue =
   | "filters"
   | "actions"
   | "server"
-  | "map"
   | "regex"
   | "log";
 
@@ -87,7 +84,6 @@ export function ConfigPage(): React.JSX.Element {
         <Tab value="filters">Filters</Tab>
         <Tab value="actions">Actions</Tab>
         <Tab value="server">Server</Tab>
-        <Tab value="map">Map</Tab>
         <Tab value="regex">Regex Tester</Tab>
         <Tab value="log">Log</Tab>
       </TabList>
@@ -97,7 +93,6 @@ export function ConfigPage(): React.JSX.Element {
         {tab === "filters" && <FiltersTab />}
         {tab === "actions" && <ActionsTab />}
         {tab === "server" && <ServerTab />}
-        {tab === "map" && <MapTab />}
         {tab === "regex" && <RegexTesterTab />}
         {tab === "log" && <LogTab />}
       </div>

frontend/src/pages/__tests__/ConfigPage.test.tsx

@@ -10,7 +10,6 @@ vi.mock("../../components/config", () => ({
   FiltersTab: () => <div data-testid="filters-tab">FiltersTab</div>,
   ActionsTab: () => <div data-testid="actions-tab">ActionsTab</div>,
   ServerTab: () => <div data-testid="server-tab">ServerTab</div>,
-  MapTab: () => <div data-testid="map-tab">MapTab</div>,
   RegexTesterTab: () => <div data-testid="regex-tab">RegexTesterTab</div>,
   ExportTab: () => <div data-testid="export-tab">ExportTab</div>,
 }));