// @vitest-environment node

import { beforeEach, describe, expect, it, vi } from 'vitest';

const mocks = vi.hoisted(() => {
  const sessionMessages: any[] = [];
  const activeRuns = new Map<string, { runId: string; abortController: AbortController }>();

  return {
    sessionMessages,
    activeRuns,
    providerChat: vi.fn(),
    providerGetCapabilities: vi.fn(),
    getEnabledSkillCapabilities: vi.fn(() => []),
    toolRuntimeRun: vi.fn(),
    createChatToolRuntime: vi.fn(() => ({
      run: mocks.toolRuntimeRun,
    })),
    appendMessage: vi.fn((_: string, message: unknown) => {
      sessionMessages.push(message);
    }),
    getOrCreate: vi.fn(() => ({
      key: 'agent:test:main',
      messages: [...sessionMessages],
      updatedAt: Date.now(),
    })),
    setActiveRun: vi.fn((sessionKey: string, runId: string, abortController: AbortController) => {
      activeRuns.set(sessionKey, { runId, abortController });
    }),
    clearActiveRun: vi.fn((sessionKey: string) => {
      activeRuns.delete(sessionKey);
    }),
    getActiveRun: vi.fn((sessionKey: string) => activeRuns.get(sessionKey)),
    appendTranscriptLine: vi.fn(),
    maybeHandleBrowserOpenMessage: vi.fn(() => false),
    maybeHandleSkillInstallMessage: vi.fn(() => false),
    logger: {
      error: vi.fn(),
    },
  };
});

vi.mock('@electron/providers', () => ({
  createProvider: vi.fn(() => ({
    chat: mocks.providerChat,
    getCapabilities: mocks.providerGetCapabilities,
  })),
}));

vi.mock('@electron/service/provider-api-service', () => ({
  providerApiService: {
    getDefault: () => ({ accountId: 'provider-1' }),
    getAccounts: () => [
      {
        id: 'provider-1',
        model: 'gpt-4o-mini',
        vendorId: 'openai',
        label: 'OpenAI',
      },
    ],
  },
}));

vi.mock('../electron/gateway/session-store', () => ({
  sessionStore: {
    appendMessage: mocks.appendMessage,
    getOrCreate: mocks.getOrCreate,
    setActiveRun: mocks.setActiveRun,
    clearActiveRun: mocks.clearActiveRun,
    getActiveRun: mocks.getActiveRun,
  },
}));

vi.mock('@electron/utils/token-usage-writer', () => ({
  appendTranscriptLine: mocks.appendTranscriptLine,
}));

vi.mock('../electron/gateway/skill-capability-registry', () => ({
  getEnabledSkillCapabilities: mocks.getEnabledSkillCapabilities,
}));

vi.mock('../electron/gateway/chat-tooling', async () => {
  const actual = await vi.importActual<typeof import('../electron/gateway/chat-tooling')>('../electron/gateway/chat-tooling');
  return {
    ...actual,
    createChatToolRuntime: mocks.createChatToolRuntime,
  };
});

vi.mock('../electron/gateway/browser-shortcut', () => ({
  maybeHandleBrowserOpenMessage: mocks.maybeHandleBrowserOpenMessage,
}));

vi.mock('../electron/gateway/skill-install-shortcut', () => ({
  maybeHandleSkillInstallMessage: mocks.maybeHandleSkillInstallMessage,
}));

vi.mock('@electron/service/logger', () => ({
  default: mocks.logger,
}));

function createStream(chunks: Array<{ result?: string; usage?: unknown }>) {
  return {
    async *[Symbol.asyncIterator]() {
      for (const chunk of chunks) {
        yield chunk;
      }
    },
  };
}

function flushAsyncTasks(iterations = 1): Promise<void> {
  return new Promise((resolve) => {
    const next = (remaining: number) => {
      if (remaining <= 0) {
        resolve();
        return;
      }

      setTimeout(() => next(remaining - 1), 0);
    };

    next(iterations);
  });
}

const spreadsheetCapability = {
  skillKey: 'minimax-xlsx',
  slug: 'minimax-xlsx',
  name: 'MiniMax XLSX',
  description: 'Analyze spreadsheet files such as .xlsx and .csv.',
  enabled: true,
  category: 'document',
  allowedTools: [],
  operationHints: ['read', 'analyze'],
  triggerHints: ['spreadsheet', 'excel'],
  inputExtensions: ['.xlsx', '.csv', '.tsv'],
  requiredEnvVars: [],
  requiresAuth: false,
  plannerSummary: 'document skill; operations: read, analyze; inputs: .xlsx, .csv, .tsv',
  renderHints: {
    card: 'document-analysis',
    preferredView: 'table',
    skillType: 'spreadsheet',
  },
};

describe('chat runtime context', () => {
  beforeEach(() => {
    vi.resetModules();
    vi.clearAllMocks();
    mocks.sessionMessages.length = 0;
    mocks.activeRuns.clear();
    mocks.maybeHandleBrowserOpenMessage.mockReturnValue(false);
    mocks.maybeHandleSkillInstallMessage.mockReturnValue(false);
    mocks.getEnabledSkillCapabilities.mockReturnValue([]);
    mocks.providerChat.mockResolvedValue(createStream([{ result: 'done' }]));
    mocks.providerGetCapabilities.mockReturnValue({
      structuredMessages: false,
      toolCalls: false,
      toolResults: false,
      thinking: false,
    });
    mocks.toolRuntimeRun.mockReset();
    mocks.createChatToolRuntime.mockImplementation(() => ({
      run: mocks.toolRuntimeRun,
    }));
  });

  it('prepends the zn-ai runtime context before provider chat runs', async () => {
    const { handleChatSend } = await import('../electron/gateway/handlers/chat');

    const result = handleChatSend(
      {
        sessionKey: 'agent:test:main',
        message: {
          role: 'user',
          content: '帮我看一下这个网页',
        },
      },
      vi.fn(),
    );

    expect(result.runId).toBeTypeOf('string');

    await flushAsyncTasks();

    expect(mocks.providerChat).toHaveBeenCalledTimes(1);
    const [messages, model] = mocks.providerChat.mock.calls[0] ?? [];

    expect(model).toBe('gpt-4o-mini');
    expect(messages).toEqual(
      expect.arrayContaining([
        expect.objectContaining({
          role: 'system',
          content: expect.stringContaining('browser.open_url'),
        }),
        expect.objectContaining({
          role: 'user',
          content: '帮我看一下这个网页',
        }),
      ]),
    );
    expect(messages[0]).toMatchObject({
      role: 'system',
      content: expect.stringContaining('skills.install'),
    });
  });

  it('persists tool_use -> tool_result -> final for planner-first spreadsheet execution', async () => {
    mocks.getEnabledSkillCapabilities.mockReturnValue([spreadsheetCapability]);
    mocks.providerChat.mockResolvedValue(createStream([{ result: 'Final answer from provider.' }]));
    mocks.toolRuntimeRun.mockImplementation(async (invocation: { toolCallId: string; toolName: string; input: unknown }) => {
      const payload = {
        ok: true,
        summary: 'Spreadsheet analysis completed.',
        structuredData: {
          reports: [{ filePath: 'C:\\tmp\\report.xlsx', rows: 3 }],
        },
        renderHints: {
          card: 'document-analysis',
          preferredView: 'table',
          skillType: 'spreadsheet',
        },
        raw: {
          reports: [{ filePath: 'C:\\tmp\\report.xlsx', rows: 3 }],
        },
      };

      return {
        preflight: {
          ok: true,
          status: 'ready',
          toolCallId: invocation.toolCallId,
          toolName: invocation.toolName,
          normalizedInput: invocation.input,
          summary: 'Ready to analyze the spreadsheet.',
        },
        execution: {
          ok: true,
          status: 'completed',
          toolCallId: invocation.toolCallId,
          toolName: invocation.toolName,
          normalizedInput: invocation.input,
          summary: 'Spreadsheet analysis completed.',
          raw: payload.raw,
          durationMs: 12,
        },
        normalized: {
          ok: true,
          status: 'completed',
          toolCallId: invocation.toolCallId,
          toolName: invocation.toolName,
          summary: 'Spreadsheet analysis completed.',
          payload,
          block: {
            type: 'tool_result',
            toolCallId: invocation.toolCallId,
            content: 'Spreadsheet analysis completed.',
            result: payload,
            summary: 'Spreadsheet analysis completed.',
            ok: true,
          },
          transcriptMessage: {
            role: 'tool_result',
            content: [
              {
                type: 'tool_result',
                toolCallId: invocation.toolCallId,
                content: 'Spreadsheet analysis completed.',
                result: payload,
                summary: 'Spreadsheet analysis completed.',
                ok: true,
              },
            ],
            timestamp: Date.now(),
            toolCallId: invocation.toolCallId,
            toolName: invocation.toolName,
            toolCall: {
              id: invocation.toolCallId,
              name: invocation.toolName,
              input: invocation.input,
              summary: 'Spreadsheet analysis completed.',
            },
            toolResult: payload,
          },
        },
      };
    });

    const { handleChatSend } = await import('../electron/gateway/handlers/chat');
    const broadcast = vi.fn();

    const result = handleChatSend(
      {
        sessionKey: 'agent:test:main',
        message: {
          role: 'user',
          content: 'Use minimax-xlsx to analyze this spreadsheet.',
          _attachedFiles: [
            {
              fileName: 'report.xlsx',
              mimeType: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
              fileSize: 2048,
              preview: null,
              filePath: 'C:\\tmp\\report.xlsx',
              source: 'user-upload',
            },
          ],
        },
      },
      broadcast,
    );

    expect(result.runId).toBeTypeOf('string');
    expect(mocks.sessionMessages).toHaveLength(2);
    expect(mocks.sessionMessages[1]).toEqual(expect.objectContaining({
      role: 'assistant',
      toolName: 'minimax-xlsx',
      content: [
        expect.objectContaining({
          type: 'tool_use',
          name: 'minimax-xlsx',
        }),
      ],
    }));

    await flushAsyncTasks(4);

    expect(mocks.toolRuntimeRun).toHaveBeenCalledWith(
      expect.objectContaining({
        toolName: 'minimax-xlsx',
        source: 'planner',
      }),
      expect.objectContaining({
        sessionKey: 'agent:test:main',
        runId: result.runId,
        files: expect.arrayContaining([
          expect.objectContaining({
            filePath: 'C:\\tmp\\report.xlsx',
          }),
        ]),
      }),
    );
    expect(mocks.providerChat).toHaveBeenCalledTimes(1);

    const [messages, model] = mocks.providerChat.mock.calls[0] ?? [];
    expect(model).toBe('gpt-4o-mini');
    expect(messages).toEqual(expect.arrayContaining([
      expect.objectContaining({
        role: 'system',
        content: expect.stringContaining('minimax-xlsx'),
      }),
      expect.objectContaining({
        role: 'assistant',
        content: [
          expect.objectContaining({
            type: 'tool_use',
            name: 'minimax-xlsx',
          }),
        ],
      }),
      expect.objectContaining({
        role: 'tool_result',
        content: [
          expect.objectContaining({
            type: 'tool_result',
            summary: 'Spreadsheet analysis completed.',
          }),
        ],
      }),
    ]));

    expect(mocks.sessionMessages.map((message) => message.role)).toEqual([
      'user',
      'assistant',
      'tool_result',
      'assistant',
    ]);
    expect(mocks.sessionMessages[2]).toEqual(expect.objectContaining({
      role: 'tool_result',
      toolName: 'minimax-xlsx',
      toolResult: expect.objectContaining({
        summary: 'Spreadsheet analysis completed.',
      }),
      _toolStatuses: [
        expect.objectContaining({
          name: 'minimax-xlsx',
          status: 'completed',
          summary: 'Spreadsheet analysis completed.',
        }),
      ],
    }));
    expect(mocks.sessionMessages[3]).toEqual(expect.objectContaining({
      role: 'assistant',
      content: 'Final answer from provider.',
    }));

    expect(broadcast).toHaveBeenCalledWith(expect.objectContaining({
      type: 'tool:status',
      toolName: 'minimax-xlsx',
      status: 'running',
    }));
    expect(broadcast).toHaveBeenCalledWith(expect.objectContaining({
      type: 'tool:status',
      toolName: 'minimax-xlsx',
      status: 'completed',
    }));
    expect(broadcast).toHaveBeenLastCalledWith(expect.objectContaining({
      type: 'chat:final',
      runId: result.runId,
      message: expect.objectContaining({
        content: 'Final answer from provider.',
      }),
    }));
  });
});