/**
 * @license
 * Copyright 2025 Vybestack LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { describe, it, expect } from 'vitest';
import { renderHook, act } from '@testing-library/react';
import { useHistory } from './useHistoryManager.js';
describe('useHistoryManager', () => {
    it('should initialize with an empty history', () => {
        const { result } = renderHook(() => useHistory());
        expect(result.current.history).toEqual([]);
    });
    it('should add an item to history with a unique ID', () => {
        const { result } = renderHook(() => useHistory());
        const timestamp = Date.now();
        const itemData = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'Hello',
        };
        act(() => {
            result.current.addItem(itemData, timestamp);
        });
        expect(result.current.history).toHaveLength(1);
        expect(result.current.history[0]).toEqual(expect.objectContaining({
            ...itemData,
            id: expect.any(Number),
        }));
        // Basic check that ID incorporates timestamp
        expect(result.current.history[0].id).toBeGreaterThanOrEqual(timestamp);
    });
    it('should generate unique IDs for items added with the same base timestamp', () => {
        const { result } = renderHook(() => useHistory());
        const timestamp = Date.now();
        const itemData1 = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'First',
        };
        const itemData2 = {
            type: 'gemini', // Replaced HistoryItemType.Gemini
            text: 'Second',
        };
        let id1;
        let id2;
        act(() => {
            id1 = result.current.addItem(itemData1, timestamp);
            id2 = result.current.addItem(itemData2, timestamp);
        });
        expect(result.current.history).toHaveLength(2);
        expect(id1).not.toEqual(id2);
        expect(result.current.history[0].id).toEqual(id1);
        expect(result.current.history[1].id).toEqual(id2);
        // IDs should be sequential based on the counter
        expect(id2).toBeGreaterThan(id1);
    });
    it('should update an existing history item', () => {
        const { result } = renderHook(() => useHistory());
        const timestamp = Date.now();
        const initialItem = {
            type: 'gemini', // Replaced HistoryItemType.Gemini
            text: 'Initial content',
        };
        let itemId;
        act(() => {
            itemId = result.current.addItem(initialItem, timestamp);
        });
        const updatedText = 'Updated content';
        act(() => {
            result.current.updateItem(itemId, { text: updatedText });
        });
        expect(result.current.history).toHaveLength(1);
        expect(result.current.history[0]).toEqual({
            ...initialItem,
            id: itemId,
            text: updatedText,
        });
    });
    it('should not change history if updateHistoryItem is called with a nonexistent ID', () => {
        const { result } = renderHook(() => useHistory());
        const timestamp = Date.now();
        const itemData = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'Hello',
        };
        act(() => {
            result.current.addItem(itemData, timestamp);
        });
        const originalHistory = [...result.current.history]; // Clone before update attempt
        act(() => {
            result.current.updateItem(99999, { text: 'Should not apply' }); // Nonexistent ID
        });
        expect(result.current.history).toEqual(originalHistory);
    });
    it('should clear the history', () => {
        const { result } = renderHook(() => useHistory());
        const timestamp = Date.now();
        const itemData1 = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'First',
        };
        const itemData2 = {
            type: 'gemini', // Replaced HistoryItemType.Gemini
            text: 'Second',
        };
        act(() => {
            result.current.addItem(itemData1, timestamp);
            result.current.addItem(itemData2, timestamp);
        });
        expect(result.current.history).toHaveLength(2);
        act(() => {
            result.current.clearItems();
        });
        expect(result.current.history).toEqual([]);
    });
    it('should not add consecutive duplicate user messages', () => {
        const { result } = renderHook(() => useHistory());
        const timestamp = Date.now();
        const itemData1 = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'Duplicate message',
        };
        const itemData2 = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'Duplicate message',
        };
        const itemData3 = {
            type: 'gemini', // Replaced HistoryItemType.Gemini
            text: 'Gemini response',
        };
        const itemData4 = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'Another user message',
        };
        act(() => {
            result.current.addItem(itemData1, timestamp);
            result.current.addItem(itemData2, timestamp + 1); // Same text, different timestamp
            result.current.addItem(itemData3, timestamp + 2);
            result.current.addItem(itemData4, timestamp + 3);
        });
        expect(result.current.history).toHaveLength(3);
        expect(result.current.history[0].text).toBe('Duplicate message');
        expect(result.current.history[1].text).toBe('Gemini response');
        expect(result.current.history[2].text).toBe('Another user message');
    });
    it('should add duplicate user messages if they are not consecutive', () => {
        const { result } = renderHook(() => useHistory());
        const timestamp = Date.now();
        const itemData1 = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'Message 1',
        };
        const itemData2 = {
            type: 'gemini', // Replaced HistoryItemType.Gemini
            text: 'Gemini response',
        };
        const itemData3 = {
            type: 'user', // Replaced HistoryItemType.User
            text: 'Message 1', // Duplicate text, but not consecutive
        };
        act(() => {
            result.current.addItem(itemData1, timestamp);
            result.current.addItem(itemData2, timestamp + 1);
            result.current.addItem(itemData3, timestamp + 2);
        });
        expect(result.current.history).toHaveLength(3);
        expect(result.current.history[0].text).toBe('Message 1');
        expect(result.current.history[1].text).toBe('Gemini response');
        expect(result.current.history[2].text).toBe('Message 1');
    });
});
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