import { createSlice, PayloadAction } from '@reduxjs/toolkit';

interface UIState {
  sidebarOpen: boolean;
  sidebarCollapsed: boolean;
  searchOpen: boolean;
  filterPanelOpen: boolean;
  createTodoDialogOpen: boolean;
  editTodoDialogOpen: boolean;
  deleteTodoDialogOpen: boolean;
  batchActionsOpen: boolean;
  settingsDialogOpen: boolean;
  aiChatOpen: boolean;
  importDialogOpen: boolean;
  currentEditingTodo: string | null;
  currentDeletingTodos: string[];
  notifications: Array<{
    id: string;
    message: string;
    type: 'info' | 'success' | 'warning' | 'error';
    timestamp: number;
    read: boolean;
  }>;
  isOnline: boolean;
  lastSync: string | null;
}

const initialState: UIState = {
  sidebarOpen: true,
  sidebarCollapsed: false,
  searchOpen: false,
  filterPanelOpen: false,
  createTodoDialogOpen: false,
  editTodoDialogOpen: false,
  deleteTodoDialogOpen: false,
  batchActionsOpen: false,
  settingsDialogOpen: false,
  aiChatOpen: false,
  importDialogOpen: false,
  currentEditingTodo: null,
  currentDeletingTodos: [],
  notifications: [],
  isOnline: true,
  lastSync: null,
};

const uiSlice = createSlice({
  name: 'ui',
  initialState,
  reducers: {
    toggleSidebar: (state) => {
      state.sidebarOpen = !state.sidebarOpen;
    },
    setSidebarOpen: (state, action: PayloadAction<boolean>) => {
      state.sidebarOpen = action.payload;
    },
    toggleSidebarCollapsed: (state) => {
      state.sidebarCollapsed = !state.sidebarCollapsed;
    },
    setSidebarCollapsed: (state, action: PayloadAction<boolean>) => {
      state.sidebarCollapsed = action.payload;
    },
    setSearchOpen: (state, action: PayloadAction<boolean>) => {
      state.searchOpen = action.payload;
    },
    setFilterPanelOpen: (state, action: PayloadAction<boolean>) => {
      state.filterPanelOpen = action.payload;
    },
    setCreateTodoDialogOpen: (state, action: PayloadAction<boolean>) => {
      state.createTodoDialogOpen = action.payload;
    },
    setEditTodoDialogOpen: (state, action: PayloadAction<boolean>) => {
      state.editTodoDialogOpen = action.payload;
    },
    setDeleteTodoDialogOpen: (state, action: PayloadAction<boolean>) => {
      state.deleteTodoDialogOpen = action.payload;
    },
    setBatchActionsOpen: (state, action: PayloadAction<boolean>) => {
      state.batchActionsOpen = action.payload;
    },
    setSettingsDialogOpen: (state, action: PayloadAction<boolean>) => {
      state.settingsDialogOpen = action.payload;
    },
    setAiChatOpen: (state, action: PayloadAction<boolean>) => {
      state.aiChatOpen = action.payload;
    },
    setImportDialogOpen: (state, action: PayloadAction<boolean>) => {
      state.importDialogOpen = action.payload;
    },
    setCurrentEditingTodo: (state, action: PayloadAction<string | null>) => {
      state.currentEditingTodo = action.payload;
    },
    setCurrentDeletingTodos: (state, action: PayloadAction<string[]>) => {
      state.currentDeletingTodos = action.payload;
    },
    addNotification: (state, action: PayloadAction<Omit<UIState['notifications'][0], 'id' | 'timestamp' | 'read'>>) => {
      const notification = {
        ...action.payload,
        id: Date.now().toString(),
        timestamp: Date.now(),
        read: false,
      };
      state.notifications.unshift(notification);
    },
    markNotificationAsRead: (state, action: PayloadAction<string>) => {
      const notification = state.notifications.find(n => n.id === action.payload);
      if (notification) {
        notification.read = true;
      }
    },
    markAllNotificationsAsRead: (state) => {
      state.notifications.forEach(n => n.read = true);
    },
    removeNotification: (state, action: PayloadAction<string>) => {
      state.notifications = state.notifications.filter(n => n.id !== action.payload);
    },
    clearNotifications: (state) => {
      state.notifications = [];
    },
    setOnlineStatus: (state, action: PayloadAction<boolean>) => {
      state.isOnline = action.payload;
    },
    setLastSync: (state, action: PayloadAction<string>) => {
      state.lastSync = action.payload;
    },
    closeAllDialogs: (state) => {
      state.createTodoDialogOpen = false;
      state.editTodoDialogOpen = false;
      state.deleteTodoDialogOpen = false;
      state.settingsDialogOpen = false;
      state.aiChatOpen = false;
      state.importDialogOpen = false;
      state.filterPanelOpen = false;
      state.searchOpen = false;
      state.batchActionsOpen = false;
      state.currentEditingTodo = null;
      state.currentDeletingTodos = [];
    },
  },
});

export const {
  toggleSidebar,
  setSidebarOpen,
  toggleSidebarCollapsed,
  setSidebarCollapsed,
  setSearchOpen,
  setFilterPanelOpen,
  setCreateTodoDialogOpen,
  setEditTodoDialogOpen,
  setDeleteTodoDialogOpen,
  setBatchActionsOpen,
  setSettingsDialogOpen,
  setAiChatOpen,
  setImportDialogOpen,
  setCurrentEditingTodo,
  setCurrentDeletingTodos,
  addNotification,
  markNotificationAsRead,
  markAllNotificationsAsRead,
  removeNotification,
  clearNotifications,
  setOnlineStatus,
  setLastSync,
  closeAllDialogs,
} = uiSlice.actions;

export default uiSlice.reducer;