refactor: decompose ChatPanel into focused modules

apps/webuiapps/src/components/ChatPanel/ChatSubComponents.tsx

@@ -0,0 +1,198 @@
+/**
+ * Helper sub-components extracted from ChatPanel
+ *
+ * StageIndicator, ActionsTaken, CharacterAvatar, renderMessageContent
+ */
+
+import React, { useState, useEffect, useCallback, memo, useRef } from 'react';
+import { ChevronDown, ChevronRight } from 'lucide-react';
+import type { CharacterConfig } from '@/lib/characterManager';
+import { resolveEmotionMedia } from '@/lib/characterManager';
+import type { ModManager } from '@/lib/modManager';
+import styles from './index.module.scss';
+
+// ---------------------------------------------------------------------------
+// Render message content — formats (action text) as styled spans
+// ---------------------------------------------------------------------------
+
+export function renderMessageContent(content: string): React.ReactNode {
+  const parts = content.split(/(\([^)]+\))/g);
+  return parts.map((part, i) => {
+    if (/^\([^)]+\)$/.test(part)) {
+      return (
+        <span key={i} className={styles.emotion}>
+          {part}
+        </span>
+      );
+    }
+    return part;
+  });
+}
+
+// ---------------------------------------------------------------------------
+// Stage Indicator
+// ---------------------------------------------------------------------------
+
+export const StageIndicator: React.FC<{ modManager: ModManager | null }> = ({ modManager }) => {
+  if (!modManager) return null;
+
+  const total = modManager.stageCount;
+  const current = modManager.currentStageIndex;
+  const finished = modManager.isFinished;
+
+  return (
+    <div className={styles.stageIndicator}>
+      <span className={styles.stageText}>
+        Stage {finished ? total : current + 1}/{total}
+      </span>
+      <div className={styles.stageDots}>
+        {Array.from({ length: total }, (_, i) => (
+          <div
+            key={i}
+            className={`${styles.stageDot} ${
+              i < current || finished
+                ? styles.stageDotCompleted
+                : i === current
+                  ? styles.stageDotCurrent
+                  : ''
+            }`}
+          />
+        ))}
+      </div>
+    </div>
+  );
+};
+
+// ---------------------------------------------------------------------------
+// Actions Taken (collapsible)
+// ---------------------------------------------------------------------------
+
+export const ActionsTaken: React.FC<{ calls: string[] }> = ({ calls }) => {
+  const [open, setOpen] = useState(false);
+  if (calls.length === 0) return null;
+
+  return (
+    <div className={styles.actionsTaken}>
+      <button className={styles.actionsTakenToggle} onClick={() => setOpen(!open)}>
+        Actions taken
+        {open ? <ChevronDown size={12} /> : <ChevronRight size={12} />}
+      </button>
+      {open && (
+        <div className={styles.actionsTakenList}>
+          {calls.map((c, i) => (
+            <div key={i}>{c}</div>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+};
+
+// ---------------------------------------------------------------------------
+// CharacterAvatar – crossfade between emotion media without flashing
+// ---------------------------------------------------------------------------
+
+interface AvatarLayer {
+  url: string;
+  type: 'video' | 'image';
+  active: boolean;
+}
+
+export const CharacterAvatar: React.FC<{
+  character: CharacterConfig;
+  emotion?: string;
+  onEmotionEnd: () => void;
+}> = memo(({ character, emotion, onEmotionEnd }) => {
+  const isIdle = !emotion;
+  const media = resolveEmotionMedia(character, emotion || 'default');
+
+  const [layers, setLayers] = useState<AvatarLayer[]>(() =>
+    media ? [{ url: media.url, type: media.type, active: true }] : [],
+  );
+  const activeUrl = layers.find((l) => l.active)?.url;
+  const cleanupRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+  useEffect(() => {
+    return () => {
+      if (cleanupRef.current) clearTimeout(cleanupRef.current);
+    };
+  }, []);
+
+  useEffect(() => {
+    if (!media) {
+      setLayers([]);
+      return;
+    }
+    if (media.url === activeUrl) return;
+    setLayers((prev) => {
+      // If the URL already exists (possibly inactive), reactivate it
+      const existing = prev.find((l) => l.url === media.url);
+      if (existing) {
+        // Cancel any pending cleanup that might remove this layer
+        if (cleanupRef.current) {
+          clearTimeout(cleanupRef.current);
+          cleanupRef.current = null;
+        }
+        return prev.map((l) => ({
+          ...l,
+          active: l.url === media.url,
+        }));
+      }
+      return [...prev, { url: media.url, type: media.type, active: false }];
+    });
+  }, [media?.url, activeUrl]);
+
+  const handleMediaReady = useCallback((readyUrl: string) => {
+    setLayers((prev) => {
+      const staleUrls = prev.filter((l) => l.url !== readyUrl).map((l) => l.url);
+      if (cleanupRef.current) clearTimeout(cleanupRef.current);
+      cleanupRef.current = setTimeout(() => {
+        setLayers((curr) => curr.filter((l) => !staleUrls.includes(l.url)));
+      }, 300);
+      return prev.map((l) => ({ ...l, active: l.url === readyUrl }));
+    });
+  }, []);
+
+  if (layers.length === 0) {
+    return <div className={styles.avatarPlaceholder}>{character.character_name.charAt(0)}</div>;
+  }
+
+  return (
+    <>
+      {layers.map((layer) => {
+        const layerStyle: React.CSSProperties = {
+          position: 'absolute',
+          inset: 0,
+          opacity: layer.active ? 1 : 0,
+          transition: 'opacity 0.25s ease-out',
+        };
+        if (layer.type === 'video') {
+          return (
+            <video
+              key={layer.url}
+              className={styles.avatarImage}
+              style={layerStyle}
+              src={layer.url}
+              autoPlay
+              loop={layer.active ? isIdle : false}
+              muted
+              playsInline
+              onCanPlay={!layer.active ? () => handleMediaReady(layer.url) : undefined}
+              onEnded={layer.active && !isIdle ? onEmotionEnd : undefined}
+            />
+          );
+        }
+        return (
+          <img
+            key={layer.url}
+            className={styles.avatarImage}
+            style={layerStyle}
+            src={layer.url}
+            alt={character.character_name}
+            onLoad={!layer.active ? () => handleMediaReady(layer.url) : undefined}
+          />
+        );
+      })}
+    </>
+  );
+});