// ==UserScript==
// @name         CPH API库
// @namespace    http://tampermonkey.net/
// @version      0.1.0
// @author       Andy_hpy
// @icon         https://divyanshuagrawal.gallerycdn.azure.cn/extensions/divyanshuagrawal/competitive-programming-helper/2025.12.1766739309/1766739324237/Microsoft.VisualStudio.Services.Icons.Default
// @description  封装CPH的API
// @grant        GM_xmlhttpRequest
// @grant        unsafeWindow
// @connect      localhost
// @connect      127.0.0.1
// ==/UserScript==

function sendToCPH(data, port) {
    return new Promise((resolve) => {
        GM_xmlhttpRequest({
            method: 'POST',
            url: `http://localhost:${port}/`,
            headers: { 'Content-Type': 'application/json' },
            data: JSON.stringify(data),
            onload: function (response) {
                if (response.status !== 200) {
                    resolve({
                        message: `错误：CPH 返回状态码 ${response.status}`,
                        success: false,
                        status: response.status
                    });
                } else {
                    resolve({
                        message: `发送成功`,
                        success: true,
                        status: 200
                    });
                }
            },
            onerror: function () {
                resolve({
                    message: `连接失败\n请确认 CPH 插件已启动，且端口为 ${port}`,
                    success: false,
                    status: 502
                });
            },
            ontimeout: function () {
                resolve({
                    message: `连接超时，请检查插件状态`,
                    success: false,
                    status: 504
                });
            }
        });
    });
}

function getSubmit(port) {
    return new Promise((resolve) => {
        GM_xmlhttpRequest({
            method: 'GET',
            url: `http://localhost:${port}/getSubmit`,
            onload: function(res) {
                if (res.status === 200) {
                    try {
                        const data = JSON.parse(res.responseText);
                        if (!data.empty) {
                            const task = {
                                problemName: data.problemName,
                                languageId: data.languageId,
                                sourceCode: data.sourceCode,
                                url: data.url
                            };
                            resolve({ data: task, success: true, status: 200 });
                        } else {
                            resolve({ data: `服务器返回 empty，无任务`, success: false, status: 204 });
                        }
                    } catch (e) {
                        resolve({ data: `解析 JSON 失败: ${e.message}`, success: false, status: 500 });
                    }
                } else {
                    resolve({ data: `HTTP 错误: ${res.status}`, success: false, status: res.status });
                }
            },
            onerror: function(err) {
                resolve({ data: `请求失败: ${err.statusText}`, success: false, status: err.status });
            }
        });
    });
}


class CPH {
    constructor(port) {
        this.port = port;
    }

    async send(data) {
        return await sendToCPH(data, this.port);
    }

    async getSubmit() {
        return await getSubmit(this.port);
    }

    editPort(port) {
        this.port = port;
    }
}

CPH.version = '0.1.0';
CPH.url = 'https://scriptcat.org/zh-CN/script-show-page/5444';

(window.unsafeWindow || window).CPH = CPH;