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#!/usr/bin/env node
const { Server } = require('@modelcontextprotocol/sdk/server/index.js');
const { StdioServerTransport } = require('@modelcontextprotocol/sdk/server/stdio.js');
const { CallToolRequestSchema, ListToolsRequestSchema } = require('@modelcontextprotocol/sdk/types.js');
const { exec } = require('child_process');
const { promisify } = require('util');

const execPromise = promisify(exec);

// 创建 MCP Server 实例
const server = new Server(
  {
    name: 'adb-server',
    version: '1.0.0'
  },
  {
    capabilities: {
      tools: {}
    }
  }
);

// 定义工具列表
const tools = [
  {
    name: 'adb-logcat',
    description: 'Get Android device logs',
    inputSchema: {
      type: 'object',
      properties: {
        lines: {
          type: 'number',
          description: 'Number of log lines to retrieve',
          default: 100
        }
      }
    }
  },
  {
    name: 'adb-devices',
    description: 'List connected Android devices',
    inputSchema: {
      type: 'object',
      properties: {}
    }
  },
  {
    name: 'adb-install',
    description: 'Install APK on connected device',
    inputSchema: {
      type: 'object',
      properties: {
        apkPath: {
          type: 'string',
          description: 'Path to the APK file to install'
        }
      },
      required: ['apkPath']
    }
  },
  {
    name: 'adb-app-info',
    description: 'Get app package information',
    inputSchema: {
      type: 'object',
      properties: {
        packageName: {
          type: 'string',
          description: 'Android package name (e.g., com.example.app)'
        }
      },
      required: ['packageName']
    }
  },
  {
    name: 'adb-meminfo',
    description: 'Get app memory usage information',
    inputSchema: {
      type: 'object',
      properties: {
        packageName: {
          type: 'string',
          description: 'Android package name (e.g., com.example.app)'
        }
      },
      required: ['packageName']
    }
  },
  {
    name: 'adb-clear-data',
    description: 'Clear app data and cache',
    inputSchema: {
      type: 'object',
      properties: {
        packageName: {
          type: 'string',
          description: 'Android package name (e.g., com.example.app)'
        }
      },
      required: ['packageName']
    }
  }
];

// 处理工具列表请求
server.setRequestHandler(ListToolsRequestSchema, async () => {
  return { tools };
});

// 处理工具执行请求
server.setRequestHandler(CallToolRequestSchema, async (request) => {
  const { name, arguments: args } = request.params;

  try {
    let result;

    switch (name) {
      case 'adb-logcat': {
        const lines = args.lines || 100;
        const { stdout } = await execPromise(`adb logcat -d -t ${lines}`);
        result = stdout;
        break;
      }

      case 'adb-devices': {
        const { stdout } = await execPromise('adb devices -l');
        result = stdout;
        break;
      }

      case 'adb-install': {
        if (!args.apkPath) {
          throw new Error('apkPath is required');
        }
        const { stdout } = await execPromise(`adb install -r "${args.apkPath}"`);
        result = stdout;
        break;
      }

      case 'adb-app-info': {
        if (!args.packageName) {
          throw new Error('packageName is required');
        }
        const { stdout } = await execPromise(`adb shell dumpsys package ${args.packageName}`);
        result = stdout;
        break;
      }

      case 'adb-meminfo': {
        if (!args.packageName) {
          throw new Error('packageName is required');
        }
        const { stdout } = await execPromise(`adb shell dumpsys meminfo ${args.packageName}`);
        result = stdout;
        break;
      }

      case 'adb-clear-data': {
        if (!args.packageName) {
          throw new Error('packageName is required');
        }
        const { stdout } = await execPromise(`adb shell pm clear ${args.packageName}`);
        result = stdout;
        break;
      }

      default:
        throw new Error(`Unknown tool: ${name}`);
    }

    return {
      content: [
        {
          type: 'text',
          text: result
        }
      ]
    };
  } catch (error) {
    return {
      content: [
        {
          type: 'text',
          text: `Error executing ${name}: ${error.message}`
        }
      ],
      isError: true
    };
  }
});

// 启动服务器
async function main() {
  const transport = new StdioServerTransport();
  await server.connect(transport);
  console.error('ADB MCP Server running on stdio');
}

main().catch((error) => {
  console.error('Server error:', error);
  process.exit(1);
});