humanus.cpp/tool/puppeteer.h

#ifndef HUMANUS_TOOL_PUPPETEER_H
#define HUMANUS_TOOL_PUPPETEER_H

#include "base.h"

namespace humanus {

struct Puppeteer : BaseTool {
    inline static const std::string name_ = "puppeteer";
    inline static const std::string description_ = "A Model Context Protocol server that provides browser automation capabilities using Puppeteer.";
    inline static const json parameters_ = json::parse(R"json({
        "type": "object",
        "properties": {
            "tool": {
                "type": "string",
                "description": "### Tools\n\n- **navigate**\n  - Navigate to any URL in the browser\n  - Input: `url` (string)\n\n- **screenshot**\n  - Capture screenshots of the entire page or specific elements\n  - Inputs:\n    - `name` (string, required): Name for the screenshot\n    - `selector` (string, optional): CSS selector for element to screenshot\n    - `width` (number, optional, default: 800): Screenshot width\n    - `height` (number, optional, default: 600): Screenshot height\n\n- **click**\n  - Click elements on the page\n  - Input: `selector` (string): CSS selector for element to click\n\n- **hover**\n  - Hover elements on the page\n  - Input: `selector` (string): CSS selector for element to hover\n\n- **fill**\n  - Fill out input fields\n  - Inputs:\n    - `selector` (string): CSS selector for input field\n    - `value` (string): Value to fill\n\n- **select**\n  - Select an element with SELECT tag\n  - Inputs:\n    - `selector` (string): CSS selector for element to select\n    - `value` (string): Value to select\n\n- **evaluate**\n  - Execute JavaScript in the browser console\n  - Input: `script` (string): JavaScript code to execute",
                "enum": [
                    "navigate",
                    "screenshot",
                    "click",
                    "hover",
                    "fill",
                    "select",
                    "evaluate"
                ]
            },
            "url": {
                "type": "string",
                "description": "The URL to navigate to. Required by `navigate`."
            },
            "name": {
                "type": "string",
                "description": "The name of the screenshot. Required by `screenshot`."
            },
            "selector": {
                "type": "string",
                "description": "The CSS selector for the element to interact with. Required by `click`, `hover`, `fill`, and `select`."
            },
            "width": {
                "type": "number",
                "description": "The width of the screenshot. Required by `screenshot`. Default: 800",
                "default": 800
            },
            "height": {
                "type": "number",
                "description": "The height of the screenshot. Required by `screenshot`. Default: 600",
                "default": 600
            },
            "value": {
                "type": "string",
                "description": "The value to fill in input fields. Required by `fill`."
            },
            "script": {
                "type": "string",
                "description": "The JavaScript code to execute. Required by `evaluate`."
            }
        },
        "required": ["tool"]
    })json");

    inline static std::set<std::string> allowed_tools = {
        "navigate",
        "screenshot",
        "click",
        "hover",
        "fill",
        "select",
        "evaluate"
    };

    Puppeteer() : BaseTool(name_, description_, parameters_) {}

    ToolResult execute(const json& args) override {
        try {
            if (!_client) {
                return ToolError("Failed to initialize puppeteer client");
            }

            // 处理命令参数
            std::string tool;
            if (args.contains("tool")) {
                if (args["tool"].is_string()) {
                    tool = args["tool"].get<std::string>();
                } else {
                    return ToolError("Invalid tool format");
                }
            } else {
                return ToolError("Tool is required");
            }

            if (allowed_tools.find(tool) == allowed_tools.end()) {
                return ToolError("Unknown tool '" + tool + "'. Please use one of the following tools: " + 
                                 std::accumulate(allowed_tools.begin(), allowed_tools.end(), std::string(),
                                                 [](const std::string& a, const std::string& b) {
                                                     return a + (a.empty() ? "" : ", ") + b;
                                                 }));
            }

            json result = _client->call_tool("puppeteer_" + tool, args);

            bool is_error = result.value("isError", false);
            
            // 根据是否有错误返回不同的ToolResult
            if (is_error) {
                return ToolError(result.value("content", json::array()));
            } else {
                return ToolResult(result.value("content", json::array()));
            }
        } catch (const std::exception& e) {
            return ToolError(std::string(e.what()));
        }
    }
};

};

#endif // HUMANUS_TOOL_PUPPETEER_H