feat: Refactor useAgentChat hook for better maintainability

src/renderer/src/pages/ChatPage/hooks/refactored/index.ts

@@ -0,0 +1,26 @@
+// リファクタリングされたフックのエクスポート
+
+export { useMessages } from './useMessages'
+export { useRequestControl } from './useRequestControl'
+export { useChatUIState } from './useChatUIState'
+export { useSessionManager } from './useSessionManager'
+export { useToolExecution } from './useToolExecution'
+export { useStreamChat } from './useStreamChat'
+export { useAgentChatRefactored } from './useAgentChatRefactored'
+
+// 型定義のエクスポート
+export type { UseMessagesProps, UseMessagesReturn } from './useMessages'
+export type { UseRequestControlReturn } from './useRequestControl'
+export type { UseChatUIStateReturn } from './useChatUIState'
+export type { UseSessionManagerProps, UseSessionManagerReturn } from './useSessionManager'
+export type { UseToolExecutionProps, UseToolExecutionReturn } from './useToolExecution'
+export type { UseStreamChatProps, UseStreamChatReturn } from './useStreamChat'
+
+export type {
+  ChatUIState,
+  SessionInfo,
+  ToolExecutionState,
+  MessageOperations,
+  StreamingState,
+  UseAgentChatReturn
+} from './types'

src/renderer/src/pages/ChatPage/hooks/refactored/types.ts

@@ -0,0 +1,59 @@
+// 共通の型定義ファイル
+
+import { IdentifiableMessage } from '@/types/chat/message'
+import { ToolName } from '@/types/tools'
+
+// UI状態の型
+export interface ChatUIState {
+  loading: boolean
+  reasoning: boolean
+  executingTool: ToolName | null
+  latestReasoningText: string
+}
+
+// セッション管理の型
+export interface SessionInfo {
+  currentSessionId: string | undefined
+  enableHistory: boolean
+}
+
+// ツール実行の型
+export interface ToolExecutionState {
+  isExecuting: boolean
+  currentTool: ToolName | null
+}
+
+// メッセージ管理の型
+export interface MessageOperations {
+  addMessage: (message: IdentifiableMessage) => Promise<void>
+  persistMessage: (message: IdentifiableMessage) => Promise<IdentifiableMessage>
+  clearMessages: () => void
+}
+
+// ストリーミングの型
+export interface StreamingState {
+  isStreaming: boolean
+  abortController: AbortController | null
+}
+
+// リファクタリング後のフックの戻り値の型
+export interface UseAgentChatReturn {
+  // メッセージ関連
+  messages: IdentifiableMessage[]
+  setMessages: React.Dispatch<React.SetStateAction<IdentifiableMessage[]>>
+
+  // UI状態
+  loading: boolean
+  reasoning: boolean
+  executingTool: ToolName | null
+  latestReasoningText: string
+
+  // セッション管理
+  currentSessionId: string | undefined
+  setCurrentSessionId: (sessionId: string) => void
+  clearChat: () => Promise<void>
+
+  // メイン機能
+  handleSubmit: (userInput: string, attachedImages?: any[]) => Promise<any>
+  stopGeneration: () => void
+}