/**
 * IPC Agent Handlers — sendMessage 编排链路测试（v0.4.1 测试补齐）
 *
 * 覆盖 sendMessage 的主编排逻辑：
 * 1. 参数校验（无效 sessionId / userMessage → ERROR+DONE 流事件，防止前端 isStreaming 卡死）
 * 2. Adapter 加载失败中止
 * 3. Prompt 注入阻断（riskScore >= 7）
 * 4. 成功路径（消息持久化 / 审计 / 记忆固化 / 摘要评估 / Token 统计）
 * 5. 引擎异常路径（审计错误 + ERROR 流事件）
 */

import { describe, it, expect, vi, beforeEach, type Mock } from 'vitest';
import { EventEmitter } from 'events';

// ===== Mock electron（ipcMain） =====
const ipcMainHandleMock = vi.fn();
const ipcMainOnMock = vi.fn();
vi.mock('electron', () => ({
  ipcMain: {
    handle: (...args: unknown[]) => ipcMainHandleMock(...args),
    on: (...args: unknown[]) => ipcMainOnMock(...args),
  },
}));

// ===== Mock broadcast（ipc/context） =====
const broadcastMock = vi.fn();
vi.mock('../context', () => ({
  broadcast: (...args: unknown[]) => broadcastMock(...args),
}));

import { registerAgentHandlers } from '../agent';
import type { IPCContext } from '../context';
import type { MetonaMessage } from '../../harness/types';
import { DeepSeekAdapter } from '../../harness/adapters/deepseek.adapter';
import { OllamaAdapter } from '../../harness/adapters/ollama.adapter';

// ===== Mock 依赖工厂 =====

function makeEngineMock(overrides: Record<string, unknown> = {}) {
  return {
    runStream: vi.fn().mockResolvedValue({
      // v0.7.3 P1-5: 固化门控要求回答 >= minChars（默认 200）—— mock 回答扩到阈值之上
      finalAnswer: '这是最终回答' + '补充细节。'.repeat(60),
      terminationReason: 'completed',
      iterations: [
        {
          iteration: 1,
          state: 'OBSERVING',
          startedAt: 1,
          completedAt: 2,
          thought: {
            id: 'thought-1',
            content: '本轮思考文本',
            reasoningContent: '推理过程',
            timestamp: 1,
            iteration: 1,
          },
          toolCalls: [],
          toolResults: [],
        },
      ],
      totalTokenUsage: { promptTokens: 100, completionTokens: 50, totalTokens: 150 },
      durationMs: 1234,
      metadata: {},
    }),
    ...overrides,
  };
}

function makeCtx(overrides: Record<string, unknown> = {}) {
  const engine = makeEngineMock();
  const engineManager = new EventEmitter() as EventEmitter & {
    getEngine: Mock;
    abort: Mock;
    waitForAbort: Mock;
    // v0.7.4 P1-3/P3-5: 同会话防重入 + 会话删除联动淘汰引擎
    isRunning: Mock;
    disposeEngine: Mock;
    getAdapter: Mock;
  };
  (engineManager as unknown as { getEngine: Mock }).getEngine = vi.fn(() => engine);
  (engineManager as unknown as { abort: Mock }).abort = vi.fn();
  (engineManager as unknown as { waitForAbort: Mock }).waitForAbort = vi
    .fn()
    .mockResolvedValue(true);
  (engineManager as unknown as { isRunning: Mock }).isRunning = vi.fn(() => false);
  (engineManager as unknown as { disposeEngine: Mock }).disposeEngine = vi.fn();
  (engineManager as unknown as { getAdapter: Mock }).getAdapter = vi.fn(() => null);

  const ctx = {
    agentEngineManager: engineManager,
    sessionRecorder: {
      startRecording: vi.fn(),
      stopRecording: vi.fn(),
      recordContextBuilt: vi.fn(),
      recordToolCall: vi.fn(),
      recordToolResult: vi.fn(),
      recordLLMResponse: vi.fn(),
      recordIterationStart: vi.fn(),
      recordIterationEnd: vi.fn(),
      recordLLMRequest: vi.fn(),
    },
    configService: { get: vi.fn(() => '') },
    sessionService: {
      saveMessage: vi.fn(),
      getMessages: vi.fn(() => []),
      updateTokenUsage: vi.fn(),
      // v0.7.4 P1-4: 会话存在性预检（getSession 返回非 null 视为会话存在）
      getSession: vi.fn(() => ({ id: 'sess_1' })),
    },
    workspaceService: {
      getFiles: vi.fn(() => ({ soul: '# Metona', memory: '# Memory' })),
      getPath: vi.fn(() => '/workspace'),
      updateMemoryTimestamp: vi.fn(),
    },
    contextBuilder: {
      buildSystemPrompt: vi.fn(() => ({
        roleDefinition: 'role',
        outputConstraints: 'constraints',
        safetyGuidelines: 'safety',
        dynamicReminders: 'reminders',
      })),
      isUsingFallbackRole: vi.fn(() => false),
    },
    auditService: {
      logSessionStart: vi.fn(),
      logSessionEnd: vi.fn(),
      log: vi.fn(),
    },
    memoryManager: { search: vi.fn(() => []), clearWorkingMemory: vi.fn() },
    promptInjectionDefender: {
      detect: vi.fn(() => ({
        isInjection: false,
        riskScore: 0,
        findings: [],
        recommendation: 'PASS: ok',
      })),
    },
    outputValidator: {
      validate: vi.fn().mockResolvedValue({ valid: true, issues: [], score: 1 }),
    },
    memoryConsolidator: {
      consolidate: vi.fn().mockResolvedValue({ appended: 0, entries: [], skipped: 0 }),
      isRunning: vi.fn(() => false),
    },
    sessionSummaryService: {
      buildHistoryMessages: vi.fn(() => []),
      maybeSummarize: vi.fn().mockResolvedValue(undefined),
    },
    // v0.5.0: orchestrator 增加事件监听（SubAgent 可观测性广播/录制），
    // mock 改用 EventEmitter 提供真实 on/emit 行为
    // v0.5.1: abortByParent 返回 taskId[]（abortSession 据此清理 SubAgent pending 确认）
    orchestrator: Object.assign(new EventEmitter(), { abortByParent: vi.fn(() => []) }),
    confirmationHook: { clearPending: vi.fn(), forgetSession: vi.fn() },
    // v0.7.3 P4-1: 会话标题生成器接线（sendMessage 完成路径消费）
    titleGenerator: { maybeGenerateTitle: vi.fn().mockResolvedValue(null) },
    reloadAdapter: vi.fn(() => true),
    ...overrides,
  };
  return { ctx: ctx as unknown as IPCContext, engine, engineManager, ctxRaw: ctx };
}

function getHandler(channel: string): (...args: unknown[]) => Promise<unknown> {
  const call = ipcMainHandleMock.mock.calls.find(([ch]) => ch === channel);
  if (!call) throw new Error(`IPC handler not registered: ${channel}`);
  return call[1] as (...args: unknown[]) => Promise<unknown>;
}

const VALID_MESSAGE: MetonaMessage = {
  role: 'user',
  content: '你好，请帮我分析这个项目',
  timestamp: Date.now(),
};

beforeEach(() => {
  ipcMainHandleMock.mockClear();
  ipcMainOnMock.mockClear();
  broadcastMock.mockClear();
});

describe('agent:sendMessage — 参数校验', () => {
  it('无效 sessionId 拒绝并发送 ERROR + DONE 流事件（防止前端 isStreaming 卡死）', async () => {
    const { ctx } = makeCtx();
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, '');
    expect(result).toEqual({ success: false, error: 'Invalid sessionId' });

    // ERROR + DONE 两个流事件都应广播
    const eventTypes = broadcastMock.mock.calls.map(([, ev]) => (ev as { type: string }).type);
    expect(eventTypes).toContain('error');
    expect(eventTypes).toContain('done');
  });

  it('无效 userMessage（非对象 / content 非字符串）拒绝', async () => {
    const { ctx } = makeCtx();
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, { content: 123 }, 'sess_1');
    expect(result).toEqual({ success: false, error: 'Invalid message format' });
    expect(broadcastMock).toHaveBeenCalled();
  });
});

describe('agent:sendMessage — 前置检查', () => {
  it('Adapter 加载失败时中止并停止录制', async () => {
    const { ctx, ctxRaw } = makeCtx({ reloadAdapter: vi.fn(() => false) });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect((result as { success: boolean }).success).toBe(false);
    expect(ctxRaw.sessionRecorder.stopRecording).toHaveBeenCalled();
    // 不应调用引擎
    expect(ctxRaw.agentEngineManager.getEngine).not.toHaveBeenCalled();
  });

  it('注入风险 riskScore >= 7 时阻断消息', async () => {
    const { ctx, ctxRaw } = makeCtx({
      promptInjectionDefender: {
        detect: vi.fn(() => ({
          isInjection: true,
          riskScore: 8,
          findings: [{ pattern: 'x', matched: 'ignore previous instructions', severity: 'high' }],
          recommendation: 'BLOCK: High-risk injection detected',
        })),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect((result as { success: boolean }).success).toBe(false);
    expect((result as { error: string }).error).toContain('blocked by prompt injection defense');
    // 用户消息不保存（在注入检测前已保存？—— 现实现:先保存再检测，验证已保存）
    expect(ctxRaw.sessionService.saveMessage).toHaveBeenCalledWith(
      expect.objectContaining({ role: 'user', sessionId: 'sess_1' }),
    );
    // 引擎不启动
    expect(ctxRaw.agentEngineManager.getEngine).not.toHaveBeenCalled();
  });

  it('SOUL.md 缺失降级时发送 toast 提示', async () => {
    const { ctx } = makeCtx({
      contextBuilder: {
        buildSystemPrompt: vi.fn(() => ({
          roleDefinition: 'fallback',
          outputConstraints: 'c',
          safetyGuidelines: 's',
        })),
        isUsingFallbackRole: vi.fn(() => true),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    await handler(null, VALID_MESSAGE, 'sess_1');
    const toastCall = broadcastMock.mock.calls.find(([ch]) => ch === 'toast:show');
    expect(toastCall).toBeDefined();
    expect((toastCall![1] as { message: string }).message).toContain('SOUL.md');
  });
});

describe('agent:sendMessage — 成功路径', () => {
  it('完整编排：保存消息 → 运行引擎 → 持久化 assistant 消息 → 审计 → 异步固化', async () => {
    const { ctx, ctxRaw, engine } = makeCtx();
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect(result).toEqual({ success: true });

    // 1. 用户消息保存
    expect(ctxRaw.sessionService.saveMessage).toHaveBeenCalledWith(
      expect.objectContaining({
        role: 'user',
        content: VALID_MESSAGE.content,
        sessionId: 'sess_1',
      }),
    );
    // 2. 引擎启动（每会话引擎）—— v0.7.3 P1-1: 引擎收到带上下文前置块的消息副本
    expect(ctxRaw.agentEngineManager.getEngine).toHaveBeenCalledWith('sess_1');
    expect(engine.runStream).toHaveBeenCalledWith(
      expect.objectContaining({
        role: 'user',
        content: expect.stringContaining(String(VALID_MESSAGE.content)),
      }),
      'sess_1',
      [],
      expect.objectContaining({ roleDefinition: 'role' }),
    );
    // 3. assistant 消息保存（含思考内容）
    expect(ctxRaw.sessionService.saveMessage).toHaveBeenCalledWith(
      expect.objectContaining({
        role: 'assistant',
        content: '本轮思考文本',
        reasoningContent: '推理过程',
      }),
    );
    // 4. Token 统计更新
    expect(ctxRaw.sessionService.updateTokenUsage).toHaveBeenCalledWith('sess_1', 150);
    // 5. MEMORY.md 时间戳更新
    expect(ctxRaw.workspaceService.updateMemoryTimestamp).toHaveBeenCalled();
    // 6. 审计 + 录制结束
    expect(ctxRaw.auditService.logSessionEnd).toHaveBeenCalledWith(
      expect.objectContaining({ sessionId: 'sess_1', terminationReason: 'completed' }),
    );
    expect(ctxRaw.sessionRecorder.stopRecording).toHaveBeenCalled();
    // 7. 输出验证执行
    expect(ctxRaw.outputValidator.validate).toHaveBeenCalledWith(
      expect.stringContaining('这是最终回答'),
      expect.anything(),
    );
    // 8. 摘要评估（异步触发）
    await vi.waitFor(() =>
      expect(ctxRaw.sessionSummaryService.maybeSummarize).toHaveBeenCalledWith('sess_1'),
    );
    // 9. 记忆固化（异步触发）
    await vi.waitFor(() => expect(ctxRaw.memoryConsolidator.consolidate).toHaveBeenCalled());
  });

  it('注入相关记忆到用户消息上下文前置块（P1-1：system 保持缓存稳定）', async () => {
    const { ctx, ctxRaw } = makeCtx({
      memoryManager: {
        search: vi.fn(() => [
          {
            id: 'm1',
            type: 'semantic',
            content: '用户偏好深色主题',
            importance: 0.9,
            createdAt: Date.now(),
            score: 0.8,
          },
        ]),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    await handler(null, VALID_MESSAGE, 'sess_1');
    expect(ctxRaw.memoryManager.search).toHaveBeenCalled();
    // P1-1: 记忆注入迁移到首条 user 消息前置块（system 跨 run 字节稳定 → 缓存命中）
    const prompt = engine_runStreamPrompt(ctxRaw);
    expect(prompt.dynamicReminders).not.toContain('用户偏好深色主题');
    const userMessage = engine_runStreamUserMessage(ctxRaw);
    expect(userMessage.content).toContain('[Contextual information for this message');
    expect(userMessage.content).toContain('用户偏好深色主题');
    // DB 持久化仍使用原始干净内容（前置块只存在于引擎副本）
    expect(ctxRaw.sessionService.saveMessage).toHaveBeenCalledWith(
      expect.objectContaining({ content: VALID_MESSAGE.content }),
    );
  });

  it('验证发现 warning 级问题时广播 VALIDATION 流事件', async () => {
    const { ctx, ctxRaw } = makeCtx({
      outputValidator: {
        validate: vi.fn().mockResolvedValue({
          valid: false,
          score: 0.7,
          issues: [
            { severity: 'warning', type: 'hallucination', message: 'Path not found in context' },
            { severity: 'info', type: 'format', message: 'noise' },
          ],
        }),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    await handler(null, VALID_MESSAGE, 'sess_1');
    const validationCall = broadcastMock.mock.calls.find(
      ([ch, ev]) => ch === 'agent:streamEvent' && (ev as { type: string }).type === 'validation',
    );
    expect(validationCall).toBeDefined();
    const payload = (validationCall![1] as { validation: { issues: unknown[] } }).validation;
    // info 级噪声不推送
    expect(payload.issues).toHaveLength(1);
    expect(ctxRaw.outputValidator.validate).toHaveBeenCalled();
  });
});

describe('agent:sendMessage — 异常路径', () => {
  it('引擎抛错时返回失败并记录审计错误', async () => {
    const engine = makeEngineMock({
      runStream: vi.fn().mockRejectedValue(new Error('LLM connection failed')),
    });
    const engineManager = new EventEmitter() as EventEmitter & {
      getEngine: Mock;
      abort: Mock;
      waitForAbort: Mock;
      isRunning: Mock;
      disposeEngine: Mock;
    };
    (engineManager as unknown as { getEngine: Mock }).getEngine = vi.fn(() => engine);
    (engineManager as unknown as { abort: Mock }).abort = vi.fn();
    (engineManager as unknown as { waitForAbort: Mock }).waitForAbort = vi
      .fn()
      .mockResolvedValue(true);
    (engineManager as unknown as { isRunning: Mock }).isRunning = vi.fn(() => false);
    (engineManager as unknown as { disposeEngine: Mock }).disposeEngine = vi.fn();
    const { ctx, ctxRaw } = makeCtx({
      agentEngineManager: engineManager,
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect((result as { success: boolean }).success).toBe(false);
    expect((result as { error: string }).error).toBe('LLM connection failed');
    // 审计记录错误
    expect(ctxRaw.auditService.log).toHaveBeenCalledWith(
      expect.objectContaining({ sessionId: 'sess_1', eventType: 'error', outcome: 'error' }),
    );
    // ERROR 流事件广播
    const errorCall = broadcastMock.mock.calls.find(
      ([ch, ev]) => ch === 'agent:streamEvent' && (ev as { type: string }).type === 'error',
    );
    expect(errorCall).toBeDefined();
  });
});

describe('agent:abortSession — 中断编排', () => {
  it('联动 SubAgent 中断 + 引擎中断 + 清理确认', async () => {
    const { ctx, ctxRaw } = makeCtx();
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:abortSession');

    const result = await handler(null, 'sess_1');
    expect(result).toEqual({ success: true });
    expect(ctxRaw.orchestrator.abortByParent).toHaveBeenCalledWith('sess_1');
    expect(ctxRaw.confirmationHook.clearPending).toHaveBeenCalled();
    expect(ctxRaw.auditService.log).toHaveBeenCalledWith(
      expect.objectContaining({ eventType: 'session_end', outcome: 'denied' }),
    );
  });
});

/** 从 runStream 调用参数中提取首条用户消息（P1-1 前置块断言用） */
function engine_runStreamUserMessage(ctxRaw: Record<string, unknown>): { content: string } {
  const engine = (ctxRaw.agentEngineManager as unknown as { getEngine: Mock }).getEngine() as {
    runStream: Mock;
  };
  return engine.runStream.mock.calls[0][0];
}

/** 从 runStream 调用参数中提取 systemPrompt */
function engine_runStreamPrompt(ctxRaw: Record<string, unknown>): {
  roleDefinition: string;
  dynamicReminders?: string;
} {
  const engine = (ctxRaw.agentEngineManager as unknown as { getEngine: Mock }).getEngine() as {
    runStream: Mock;
  };
  return engine.runStream.mock.calls[0][3];
}

// ===== 追加：sendMessage 并发/会话预检 =====

describe('agent:sendMessage — 并发防重入与会话预检（v0.7.4 P1-3/P1-4）', () => {
  it('同会话并发：isRunning=true 时拒绝第二次调用并广播 ERROR+DONE（不启动引擎）', async () => {
    const { ctx, ctxRaw } = makeCtx({
      agentEngineManager: Object.assign(new EventEmitter(), {
        getEngine: vi.fn(),
        abort: vi.fn(),
        waitForAbort: vi.fn().mockResolvedValue(true),
        isRunning: vi.fn(() => true),
        disposeEngine: vi.fn(),
        getAdapter: vi.fn(() => null),
      }),
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect(result).toMatchObject({ success: false });
    expect((result as { error: string }).error).toContain('正在执行任务');

    const errorCall = broadcastMock.mock.calls.find(
      ([ch, ev]) => ch === 'agent:streamEvent' && (ev as { type: string }).type === 'error',
    );
    expect(errorCall).toBeDefined();
    const doneCall = broadcastMock.mock.calls.find(
      ([ch, ev]) => ch === 'agent:streamEvent' && (ev as { type: string }).type === 'done',
    );
    expect(doneCall).toBeDefined();
    // 引擎不启动（防重入的核心）
    expect(ctxRaw.agentEngineManager.getEngine).not.toHaveBeenCalled();
    // 用户消息不落库（拒绝发生在持久化前）
    expect(ctxRaw.sessionService.saveMessage).not.toHaveBeenCalled();
  });

  it('会话不存在：预检拒绝 + stopRecording 收尾（ERROR+DONE 防 isStreaming 卡死）', async () => {
    const { ctx, ctxRaw } = makeCtx({
      sessionService: {
        saveMessage: vi.fn(),
        getMessages: vi.fn(() => []),
        updateTokenUsage: vi.fn(),
        getSession: vi.fn(() => null), // 会话不存在
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_deleted');
    expect(result).toMatchObject({ success: false });
    expect((result as { error: string }).error).toContain('会话不存在');
    // 录制终止 + ERROR/DONE 双事件
    expect(ctxRaw.sessionRecorder.stopRecording).toHaveBeenCalled();
    const eventTypes = broadcastMock.mock.calls.map(([, ev]) => (ev as { type: string }).type);
    expect(eventTypes).toContain('error');
    expect(eventTypes).toContain('done');
  });

  it('数据准备抛错（历史加载/记忆检索失败）→ ERROR 事件 + stopRecording 收尾', async () => {
    const { ctx, ctxRaw } = makeCtx({
      sessionSummaryService: {
        buildHistoryMessages: vi.fn(() => {
          throw new Error('DB locked');
        }),
        maybeSummarize: vi.fn().mockResolvedValue(undefined),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect(result).toMatchObject({ success: false, error: 'DB locked' });
    expect(ctxRaw.sessionRecorder.stopRecording).toHaveBeenCalled();
    const errorCall = broadcastMock.mock.calls.find(
      ([ch, ev]) => ch === 'agent:streamEvent' && (ev as { type: string }).type === 'error',
    );
    expect(errorCall).toBeDefined();
  });

  it('记忆检索失败 → 前置块退化为仅时间/时区，run 仍正常继续', async () => {
    const { ctx, ctxRaw } = makeCtx({
      memoryManager: {
        search: vi.fn(() => {
          throw new Error('search db down');
        }),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect(result).toEqual({ success: true });
    // 前置块仍生成（含日期上下文），不阻断主流程
    const userMessage = engine_runStreamUserMessage(ctxRaw);
    expect(userMessage.content).toContain('[Contextual information for this message');
  });

  it('注入防御被配置关闭（security.promptInjectionDefense=false）→ 跳过检测直接运行', async () => {
    const detect = vi.fn();
    const { ctx } = makeCtx({
      configService: {
        get: vi.fn((key: string) => (key === 'security.promptInjectionDefense' ? false : '')),
      },
      promptInjectionDefender: { detect },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect(result).toEqual({ success: true });
    expect(detect).not.toHaveBeenCalled();
  });

  it('注入风险 4-6（警告级）→ 记录警告但放行', async () => {
    const { ctx, ctxRaw } = makeCtx({
      promptInjectionDefender: {
        detect: vi.fn(() => ({
          isInjection: true,
          riskScore: 5,
          findings: [{ pattern: 'suspicious', matched: 'x', severity: 'medium' }],
          recommendation: 'CAUTION',
        })),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect(result).toEqual({ success: true });
    expect(ctxRaw.agentEngineManager.getEngine).toHaveBeenCalled();
  });

  it('assistant 仅有工具调用无文本时 content 为 null 落库（C-6 契约）', async () => {
    const engine = makeEngineMock({
      runStream: vi.fn().mockResolvedValue({
        finalAnswer: 'answer',
        terminationReason: 'completed',
        iterations: [
          {
            iteration: 1,
            state: 'TOOL_CALL',
            startedAt: 1,
            completedAt: 2,
            thought: { content: '', reasoningContent: '', timestamp: 1, iteration: 1 },
            toolCalls: [
              {
                id: 'tc_1',
                name: 'read_file',
                args: { path: 'a.txt' },
                iteration: 1,
                timestamp: 1,
              },
            ],
            toolResults: [
              {
                toolCallId: 'tc_1',
                toolName: 'read_file',
                result: 'data',
                success: true,
                durationMs: 5,
                timestamp: 1,
              },
            ],
          },
        ],
        totalTokenUsage: { promptTokens: 1, completionTokens: 1, totalTokens: 2 },
        durationMs: 10,
        metadata: {},
      }),
    });
    const engineManager = new EventEmitter() as EventEmitter & {
      getEngine: Mock;
      abort: Mock;
      waitForAbort: Mock;
      isRunning: Mock;
      disposeEngine: Mock;
      getAdapter: Mock;
    };
    (engineManager as unknown as { getEngine: Mock }).getEngine = vi.fn(() => engine);
    (engineManager as unknown as { abort: Mock }).abort = vi.fn();
    (engineManager as unknown as { waitForAbort: Mock }).waitForAbort = vi
      .fn()
      .mockResolvedValue(true);
    (engineManager as unknown as { isRunning: Mock }).isRunning = vi.fn(() => false);
    (engineManager as unknown as { disposeEngine: Mock }).disposeEngine = vi.fn();
    (engineManager as unknown as { getAdapter: Mock }).getAdapter = vi.fn(() => null);
    const { ctx, ctxRaw } = makeCtx({ agentEngineManager: engineManager });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    await handler(null, VALID_MESSAGE, 'sess_1');
    // assistant 消息 content=null（纯工具调用轮）
    expect(ctxRaw.sessionService.saveMessage).toHaveBeenCalledWith(
      expect.objectContaining({ role: 'assistant', content: null }),
    );
    // tool 结果消息落库
    expect(ctxRaw.sessionService.saveMessage).toHaveBeenCalledWith(
      expect.objectContaining({
        role: 'tool',
        toolResult: expect.objectContaining({ toolCallId: 'tc_1' }),
      }),
    );
  });

  it('输出验证抛错不阻断成功路径（验证失败仅记录）', async () => {
    const { ctx, ctxRaw } = makeCtx({
      outputValidator: {
        validate: vi.fn(() => {
          throw new Error('validator crashed');
        }),
      },
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:sendMessage');

    const result = await handler(null, VALID_MESSAGE, 'sess_1');
    expect(result).toEqual({ success: true });
    expect(ctxRaw.auditService.logSessionEnd).toHaveBeenCalled();
  });
});

// ===== 追加：abortSession 深入 =====

describe('agent:abortSession — SubAgent 清理', () => {
  function makeCtxWithOrchestrator(abortedTasks: string[]) {
    return makeCtx({
      orchestrator: Object.assign(new EventEmitter(), { abortByParent: vi.fn(() => abortedTasks) }),
      confirmationHook: {
        clearPending: vi.fn(),
        forgetSession: vi.fn(),
      },
    });
  }

  it('abortByParent 返回的每个 taskId 都做 forgetSession + stopRecording（TRACE 收尾）', async () => {
    const { ctx, ctxRaw } = makeCtxWithOrchestrator(['task_1', 'task_2']);
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:abortSession');

    const result = await handler(null, 'sess_1');
    expect(result).toEqual({ success: true });
    expect(ctxRaw.orchestrator.abortByParent).toHaveBeenCalledWith('sess_1');
    expect(ctxRaw.confirmationHook.forgetSession).toHaveBeenCalledTimes(2);
    expect(ctxRaw.confirmationHook.forgetSession).toHaveBeenCalledWith('task_1');
    expect(ctxRaw.confirmationHook.forgetSession).toHaveBeenCalledWith('task_2');
    expect(ctxRaw.sessionRecorder.stopRecording).toHaveBeenCalledWith(
      'task_1',
      expect.objectContaining({ terminationReason: 'user_interrupt' }),
    );
  });

  it('无 SubAgent 时不调用 forgetSession（空数组短路）', async () => {
    const { ctx, ctxRaw } = makeCtxWithOrchestrator([]);
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:abortSession');

    await handler(null, 'sess_1');
    expect(ctxRaw.confirmationHook.forgetSession).not.toHaveBeenCalled();
    expect(ctxRaw.confirmationHook.clearPending).toHaveBeenCalledWith('sess_1');
    expect(ctxRaw.agentEngineManager.abort).toHaveBeenCalledWith('sess_1');
    expect(ctxRaw.agentEngineManager.waitForAbort).toHaveBeenCalledWith('sess_1');
  });

  it('waitForAbort 在返回前被 await（MT-1：防重发卡在等待中）', async () => {
    const waitForAbort = vi.fn().mockResolvedValue(true);
    const { ctx } = makeCtx({
      agentEngineManager: Object.assign(new EventEmitter(), {
        getEngine: vi.fn(),
        abort: vi.fn(),
        waitForAbort,
        isRunning: vi.fn(() => false),
        disposeEngine: vi.fn(),
        getAdapter: vi.fn(() => null),
      }),
    });
    registerAgentHandlers(ctx);
    const handler = getHandler('agent:abortSession');

    await handler(null, 'sess_1');
    expect(waitForAbort).toHaveBeenCalled();
    // abort 在 waitForAbort 之前调用
    const abortOrder = (ctx.agentEngineManager as unknown as { abort: Mock }).abort.mock
      .invocationCallOrder[0];
    const waitOrder = waitForAbort.mock.invocationCallOrder[0];
    expect(abortOrder).toBeLessThan(waitOrder);
  });
});

// ===== 追加：llm:getBalance / llm:listModels / llm:ollamaPull =====

describe('llm:getBalance — DeepSeek 余额查询', () => {
  it('adapter 为 DeepSeek 且余额存在 → 返回余额', async () => {
    const adapter = new DeepSeekAdapter({
      provider: 'deepseek',
      baseURL: 'https://api.deepseek.com',
      apiKey: 'sk-test',
      defaultModel: 'deepseek-v4-pro',
    });
    vi.spyOn(adapter, 'getBalance').mockResolvedValue({
      currency: 'CNY',
      totalBalance: '10.00',
      grantedBalance: '0',
      toppedUpBalance: '10.00',
    });
    const { ctx } = makeCtx({
      agentEngineManager: Object.assign(new EventEmitter(), {
        getEngine: vi.fn(),
        abort: vi.fn(),
        waitForAbort: vi.fn().mockResolvedValue(true),
        isRunning: vi.fn(() => false),
        disposeEngine: vi.fn(),
        getAdapter: vi.fn(() => adapter),
      }),
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:getBalance')(null)) as {
      success: boolean;
      data?: unknown;
    };
    expect(result).toMatchObject({ success: true, data: { currency: 'CNY' } });
  });

  it('adapter 非 DeepSeek → 明确拒绝（仅 DeepSeek 支持）', async () => {
    const { ctx } = makeCtx({
      agentEngineManager: Object.assign(new EventEmitter(), {
        getEngine: vi.fn(),
        abort: vi.fn(),
        waitForAbort: vi.fn().mockResolvedValue(true),
        isRunning: vi.fn(() => false),
        disposeEngine: vi.fn(),
        getAdapter: vi.fn(() => ({ providerId: 'openai' })),
      }),
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:getBalance')(null)) as {
      success: boolean;
      error?: string;
    };
    expect(result.success).toBe(false);
    expect(result.error).toContain('only supported for the DeepSeek provider');
  });

  it('getBalance 返回 null → 失败（API Key 无效或网络错误）', async () => {
    const adapter = new DeepSeekAdapter({
      provider: 'deepseek',
      baseURL: 'https://api.deepseek.com',
      apiKey: 'bad',
      defaultModel: 'deepseek-v4-pro',
    });
    vi.spyOn(adapter, 'getBalance').mockResolvedValue(null);
    const { ctx } = makeCtx({
      agentEngineManager: Object.assign(new EventEmitter(), {
        getEngine: vi.fn(),
        abort: vi.fn(),
        waitForAbort: vi.fn().mockResolvedValue(true),
        isRunning: vi.fn(() => false),
        disposeEngine: vi.fn(),
        getAdapter: vi.fn(() => adapter),
      }),
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:getBalance')(null)) as { success: boolean };
    expect(result.success).toBe(false);
  });

  it('getBalance 抛异常 → 返回错误信息', async () => {
    const adapter = new DeepSeekAdapter({
      provider: 'deepseek',
      baseURL: 'https://api.deepseek.com',
      apiKey: 'k',
      defaultModel: 'deepseek-v4-pro',
    });
    vi.spyOn(adapter, 'getBalance').mockRejectedValue(new Error('network down'));
    const { ctx } = makeCtx({
      agentEngineManager: Object.assign(new EventEmitter(), {
        getEngine: vi.fn(),
        abort: vi.fn(),
        waitForAbort: vi.fn().mockResolvedValue(true),
        isRunning: vi.fn(() => false),
        disposeEngine: vi.fn(),
        getAdapter: vi.fn(() => adapter),
      }),
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:getBalance')(null)) as {
      success: boolean;
      error?: string;
    };
    expect(result.success).toBe(false);
    expect(result.error).toBe('network down');
  });
});

describe('llm:listModels — 动态模型列表', () => {
  function managerWithAdapter(adapter: unknown) {
    return Object.assign(new EventEmitter(), {
      getEngine: vi.fn(),
      abort: vi.fn(),
      waitForAbort: vi.fn().mockResolvedValue(true),
      isRunning: vi.fn(() => false),
      disposeEngine: vi.fn(),
      getAdapter: vi.fn(() => adapter),
    });
  }

  it('Provider/Model 未配置 → 明确失败', async () => {
    const { ctx } = makeCtx({
      configService: { get: vi.fn(() => '') },
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:listModels')(null)) as {
      success: boolean;
      error?: string;
    };
    expect(result.success).toBe(false);
    expect(result.error).toContain('LLM 未配置');
  });

  it('非 ollama Provider 且无 API Key → 失败', async () => {
    const { ctx } = makeCtx({
      configService: {
        get: vi.fn((key: string) =>
          key === 'llm.provider' ? 'deepseek' : key === 'llm.model' ? 'deepseek-v4-pro' : '',
        ),
      },
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:listModels')(null)) as {
      success: boolean;
      error?: string;
    };
    expect(result.success).toBe(false);
    expect(result.error).toContain('API Key 未配置');
  });

  it('ollama Provider 无需 API Key → 放行', async () => {
    const adapter = new OllamaAdapter({
      provider: 'ollama',
      baseURL: 'http://localhost:11434',
      defaultModel: 'qwen3',
    });
    vi.spyOn(adapter, 'listModels').mockResolvedValue([{ id: 'qwen3' }]);
    const { ctx } = makeCtx({
      configService: {
        get: vi.fn((key: string) =>
          key === 'llm.provider' ? 'ollama' : key === 'llm.model' ? 'qwen3' : '',
        ),
      },
      agentEngineManager: managerWithAdapter(adapter),
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:listModels')(null)) as {
      success: boolean;
      data?: unknown[];
    };
    expect(result.success).toBe(true);
    expect(result.data).toEqual([{ id: 'qwen3' }]);
  });

  it('reloadAdapter 失败 → 返回配置校验失败', async () => {
    const adapter = new DeepSeekAdapter({
      provider: 'deepseek',
      baseURL: 'https://api.deepseek.com',
      apiKey: 'k',
      defaultModel: 'deepseek-v4-pro',
    });
    const { ctx } = makeCtx({
      configService: {
        get: vi.fn((key: string) =>
          key === 'llm.provider'
            ? 'deepseek'
            : key === 'llm.model'
              ? 'deepseek-v4-pro'
              : key === 'llm.apiKey'
                ? 'k'
                : '',
        ),
      },
      reloadAdapter: vi.fn(() => false),
      agentEngineManager: managerWithAdapter(adapter),
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:listModels')(null)) as { success: boolean };
    expect(result.success).toBe(false);
  });

  it('adapter 无 listModels 方法 → 明确失败', async () => {
    const { ctx } = makeCtx({
      configService: {
        get: vi.fn((key: string) =>
          key === 'llm.provider'
            ? 'deepseek'
            : key === 'llm.model'
              ? 'm'
              : key === 'llm.apiKey'
                ? 'k'
                : '',
        ),
      },
      agentEngineManager: managerWithAdapter({ providerId: 'x' }),
    });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:listModels')(null)) as {
      success: boolean;
      error?: string;
    };
    expect(result.success).toBe(false);
    expect(result.error).toContain('不支持模型列表查询');
  });
});

describe('llm:ollamaPull / ollamaPullCancel — 模型下载', () => {
  function managerWithAdapter(adapter: unknown) {
    return Object.assign(new EventEmitter(), {
      getEngine: vi.fn(),
      abort: vi.fn(),
      waitForAbort: vi.fn().mockResolvedValue(true),
      isRunning: vi.fn(() => false),
      disposeEngine: vi.fn(),
      getAdapter: vi.fn(() => adapter),
    });
  }

  it('非法模型名（非字符串 / 空 / 非法字符）拒绝', async () => {
    const { ctx } = makeCtx({ agentEngineManager: managerWithAdapter(null) });
    registerAgentHandlers(ctx);
    const handler = getHandler('llm:ollamaPull');

    expect(await handler(null, '')).toMatchObject({ success: false });
    expect(await handler(null, 42)).toMatchObject({ success: false });
    expect(await handler(null, 'rm -rf /')).toMatchObject({ success: false });
    expect(await handler(null, 'model with spaces')).toMatchObject({ success: false });
  });

  it('非 Ollama Provider → 拒绝', async () => {
    const { ctx } = makeCtx({ agentEngineManager: managerWithAdapter({ providerId: 'deepseek' }) });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:ollamaPull')(null, 'qwen3:8b')) as {
      success: boolean;
      error?: string;
    };
    expect(result.success).toBe(false);
    expect(result.error).toContain('仅 Ollama Provider');
  });

  it('成功路径：进度广播 + ollamaPullEnded 收尾', async () => {
    const adapter = new OllamaAdapter({
      provider: 'ollama',
      baseURL: 'http://localhost:11434',
      defaultModel: 'qwen3',
    });
    vi.spyOn(adapter, 'pullModel').mockImplementation(async (_m, onProgress) => {
      onProgress?.({ status: 'downloading', completed: 50, total: 100 });
    });
    const { ctx } = makeCtx({
      agentEngineManager: managerWithAdapter(adapter),
    });
    registerAgentHandlers(ctx);

    const result = await getHandler('llm:ollamaPull')(null, 'qwen3:8b');
    expect(result).toEqual({ success: true });

    const progressCall = broadcastMock.mock.calls.find(([ch]) => ch === 'llm:ollamaPullProgress');
    expect(progressCall).toBeDefined();
    expect(progressCall![1]).toMatchObject({ model: 'qwen3:8b', status: 'downloading' });
    const endedCall = broadcastMock.mock.calls.find(([ch]) => ch === 'llm:ollamaPullEnded');
    expect(endedCall).toBeDefined();
    expect(endedCall![1]).toEqual({ model: 'qwen3:8b' });
  });

  it('pullModel 抛错 → 返回错误 + aborted 标志（取消信号语义）', async () => {
    const adapter = new OllamaAdapter({
      provider: 'ollama',
      baseURL: 'http://localhost:11434',
      defaultModel: 'qwen3',
    });
    vi.spyOn(adapter, 'pullModel').mockRejectedValue(new Error('download failed'));
    const { ctx } = makeCtx({
      agentEngineManager: managerWithAdapter(adapter),
    });
    registerAgentHandlers(ctx);

    const result = (await getHandler('llm:ollamaPull')(null, 'qwen3:8b')) as {
      success: boolean;
      error?: string;
      aborted?: boolean;
    };
    expect(result.success).toBe(false);
    expect(result.error).toBe('download failed');
    expect(result.aborted).toBe(false);
  });

  it('无进行中的下载时 ollamaPullCancel → 失败', async () => {
    const { ctx } = makeCtx({ agentEngineManager: managerWithAdapter(null) });
    registerAgentHandlers(ctx);
    const result = (await getHandler('llm:ollamaPullCancel')(null)) as { success: boolean };
    expect(result.success).toBe(false);
  });
});

// ===== v0.8.0 P1-1a: 后台会话回放缓冲 =====

describe('agent:getReplayState — v0.8.0 P1-1a 后台会话回放缓冲', () => {
  it('streamEvent + stateChange 按序入缓冲，runId 记录，INIT 清空上一 run', async () => {
    const { ctx } = makeCtx();
    registerAgentHandlers(ctx);
    const em = ctx.agentEngineManager as unknown as EventEmitter;

    em.emit('streamEvent', {
      type: 'text_delta',
      sessionId: 'sess_1',
      seq: 0,
      timestamp: Date.now(),
      delta: 'a',
    });
    em.emit('stateChange', {
      sessionId: 'sess_1',
      state: 'THINKING',
      iteration: 1,
      runId: 'run_x',
    });
    em.emit('streamEvent', {
      type: 'text_delta',
      sessionId: 'sess_1',
      seq: 1,
      timestamp: Date.now(),
      delta: 'b',
      runId: 'run_x',
    });

    const r = (await getHandler('agent:getReplayState')(null, 'sess_1')) as {
      success: boolean;
      data: {
        isRunning: boolean;
        runId: string | null;
        truncated: boolean;
        events: Array<{ channel: string }>;
      };
    };
    expect(r.success).toBe(true);
    expect(r.data.events.length).toBe(3);
    expect(r.data.runId).toBe('run_x');
    expect(r.data.events.map((e) => e.channel)).toEqual([
      'streamEvent',
      'stateChange',
      'streamEvent',
    ]);

    // 新 run INIT → 上一 run 缓冲作废
    em.emit('stateChange', {
      sessionId: 'sess_1',
      state: 'INIT',
      iteration: 0,
      runId: 'run_y',
    });
    const r2 = (await getHandler('agent:getReplayState')(null, 'sess_1')) as {
      success: boolean;
      data: { events: unknown[] };
    };
    expect(r2.data.events.length).toBe(0);
  });

  it('无效 sessionId → 明确失败', async () => {
    const { ctx } = makeCtx();
    registerAgentHandlers(ctx);
    const r = (await getHandler('agent:getReplayState')(null, '')) as { success: boolean };
    expect(r.success).toBe(false);
  });
});