/**
 * Tools Route 测试
 *
 * 测试工具管理 REST API 端点
 */

import { describe, it, expect, beforeEach, vi } from 'vitest';
import { Hono } from 'hono';
import { toolsRouter, registerTool, getRegisteredTools } from '../../../src/routes/tools.js';

// Create test app
const app = new Hono();
app.route('/tools', toolsRouter);

describe('Tools Route', () => {
  beforeEach(() => {
    // Clear any previously registered tools
    // Note: Since the toolRegistry is a module-level Map, we test what's already registered
    vi.clearAllMocks();
  });

  describe('registerTool / getRegisteredTools - 工具注册', () => {
    it('注册工具', () => {
      registerTool({
        name: 'test-tool',
        description: 'A test tool',
        parameters: {},
      });

      const tools = getRegisteredTools();
      expect(tools.some((t) => t.name === 'test-tool')).toBe(true);
    });

    it('获取所有已注册工具', () => {
      const tools = getRegisteredTools();
      expect(Array.isArray(tools)).toBe(true);
    });
  });

  describe('GET /tools - 列出所有工具', () => {
    it('返回工具列表', async () => {
      // Register a tool first
      registerTool({
        name: 'list-test-tool',
        description: 'Tool for list test',
        parameters: {},
      });

      const res = await app.request('/tools');
      const json = await res.json();

      expect(res.status).toBe(200);
      expect(json.success).toBe(true);
      expect(Array.isArray(json.data)).toBe(true);
    });

    it('返回数组类型数据', async () => {
      const res = await app.request('/tools');
      const json = await res.json();

      expect(res.status).toBe(200);
      expect(json.success).toBe(true);
      expect(Array.isArray(json.data)).toBe(true);
    });
  });

  describe('GET /tools/:name - 获取单个工具', () => {
    it('返回存在的工具', async () => {
      registerTool({
        name: 'get-test-tool',
        description: 'Tool for get test',
        parameters: { path: { type: 'string' } },
      });

      const res = await app.request('/tools/get-test-tool');
      const json = await res.json();

      expect(res.status).toBe(200);
      expect(json.success).toBe(true);
      expect(json.data.name).toBe('get-test-tool');
      expect(json.data.description).toBe('Tool for get test');
    });

    it('工具不存在返回 404', async () => {
      const res = await app.request('/tools/non-existent-tool-12345');
      const json = await res.json();

      expect(res.status).toBe(404);
      expect(json.success).toBe(false);
      expect(json.error).toBe('Tool not found');
    });
  });

  describe('POST /tools/:name/execute - 执行工具', () => {
    it('执行存在的工具（占位实现）', async () => {
      registerTool({
        name: 'execute-test-tool',
        description: 'Tool for execute test',
        parameters: {},
      });

      const res = await app.request('/tools/execute-test-tool/execute', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ params: { test: 'value' } }),
      });
      const json = await res.json();

      expect(res.status).toBe(200);
      expect(json.success).toBe(true);
      expect(json.data.tool).toBe('execute-test-tool');
      expect(json.data.params).toEqual({ test: 'value' });
    });

    it('工具不存在返回 404', async () => {
      const res = await app.request('/tools/non-existent-tool-67890/execute', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ params: {} }),
      });
      const json = await res.json();

      expect(res.status).toBe(404);
      expect(json.success).toBe(false);
      expect(json.error).toBe('Tool not found');
    });

    it('无 params 时使用空对象', async () => {
      registerTool({
        name: 'no-params-tool',
        description: 'Tool without params',
        parameters: {},
      });

      const res = await app.request('/tools/no-params-tool/execute', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({}),
      });
      const json = await res.json();

      expect(res.status).toBe(200);
      expect(json.data.params).toEqual({});
    });

    it('无效 JSON 返回 500', async () => {
      registerTool({
        name: 'json-error-tool',
        description: 'Tool for JSON error test',
        parameters: {},
      });

      const res = await app.request('/tools/json-error-tool/execute', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: 'invalid json',
      });
      const json = await res.json();

      expect(res.status).toBe(500);
      expect(json.success).toBe(false);
    });
  });
});
