import { PageEditorFunctions } from '../../types/pageEditor';
import { type ToolPanelMode, DEFAULT_TOOL_PANEL_MODE } from '../../constants/toolPanel';

export interface ToolWorkflowState {
  // UI State
  sidebarsVisible: boolean;
  leftPanelView: 'toolPicker' | 'toolContent' | 'hidden';
  readerMode: boolean;
  toolPanelMode: ToolPanelMode;

  previewFile: File | null;
  pageEditorFunctions: PageEditorFunctions | null;

  // Search State
  searchQuery: string;
}

// Actions
export type ToolWorkflowAction =
  | { type: 'SET_SIDEBARS_VISIBLE'; payload: boolean }
  | { type: 'SET_LEFT_PANEL_VIEW'; payload: 'toolPicker' | 'toolContent' | 'hidden' }
  | { type: 'SET_READER_MODE'; payload: boolean }
  | { type: 'SET_TOOL_PANEL_MODE'; payload: ToolPanelMode }
  | { type: 'SET_PREVIEW_FILE'; payload: File | null }
  | { type: 'SET_PAGE_EDITOR_FUNCTIONS'; payload: PageEditorFunctions | null }
  | { type: 'SET_SEARCH_QUERY'; payload: string }
  | { type: 'RESET_UI_STATE' };

  
export const baseState: Omit<ToolWorkflowState, 'toolPanelMode'> = {
  sidebarsVisible: true,
  leftPanelView: 'toolPicker',
  readerMode: false,
  previewFile: null,
  pageEditorFunctions: null,
  searchQuery: '',
};

export const createInitialState = (): ToolWorkflowState => ({
  ...baseState,
  toolPanelMode: DEFAULT_TOOL_PANEL_MODE,
});

export function toolWorkflowReducer(state: ToolWorkflowState, action: ToolWorkflowAction): ToolWorkflowState {
  switch (action.type) {
    case 'SET_SIDEBARS_VISIBLE':
      return { ...state, sidebarsVisible: action.payload };
    case 'SET_LEFT_PANEL_VIEW':
      return { ...state, leftPanelView: action.payload };
    case 'SET_READER_MODE':
      return { ...state, readerMode: action.payload };
    case 'SET_TOOL_PANEL_MODE':
      return { ...state, toolPanelMode: action.payload };
    case 'SET_PREVIEW_FILE':
      return { ...state, previewFile: action.payload };
    case 'SET_PAGE_EDITOR_FUNCTIONS':
      return { ...state, pageEditorFunctions: action.payload };
    case 'SET_SEARCH_QUERY':
      return { ...state, searchQuery: action.payload };
    case 'RESET_UI_STATE':
      return {
        ...baseState,
        toolPanelMode: state.toolPanelMode,
        searchQuery: state.searchQuery,
      };
    default:
      return state;
  }
}