Oliver-ai-bot_2.0/frontend/store/useAssistantStore.ts

// ============================================
// Assistant Store (Zustand)
// ============================================

import { create } from 'zustand';

export type AssistantTool = 'summarize' | 'translate' | 'extract';

interface AssistantState {
  // Current tool selection
  selectedTool: AssistantTool | null;

  // Processing state
  isProcessing: boolean;

  // Result data
  result: string | null;
  error: string | null;

  // Actions
  selectTool: (tool: AssistantTool | null) => void;
  setProcessing: (processing: boolean) => void;
  setResult: (result: string | null) => void;
  setError: (error: string | null) => void;
  reset: () => void;
}

export const useAssistantStore = create<AssistantState>((set) => ({
  selectedTool: null,
  isProcessing: false,
  result: null,
  error: null,

  selectTool: (tool) => set({
    selectedTool: tool,
    result: null,
    error: null,
  }),

  setProcessing: (processing) => set({ isProcessing: processing }),

  setResult: (result) => set({
    result,
    error: null,
    isProcessing: false,
  }),

  setError: (error) => set({
    error,
    result: null,
    isProcessing: false,
  }),

  reset: () => set({
    selectedTool: null,
    isProcessing: false,
    result: null,
    error: null,
  }),
}));