// ==UserScript==
// @name         Binance Alpha Farm Agent
// @namespace    http://baf.thuanle.me
// @version      2025.07.31
// @author       TL
// @match        https://www.binance.com/en/alpha/bsc/*
// @run-at       document-idle
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_registerMenuCommand
// @grant        GM_notification
// @grant        GM_xmlhttpRequest
// @connect      baf.thuanle.me
// @connect      localhost
// @downloadURL  https://git.thuanle.me/public/binance-alpha-farm-agent/raw/branch/main/agent.user.js
// @updateURL    https://git.thuanle.me/public/binance-alpha-farm-agent/raw/branch/main/agent.user.js
// ==/UserScript==

(async () => {
    'use strict';

    // ====== Storage ======
    const STORAGE = {
        key_token: 'baf-agent-token',
        getToken: () => GM_getValue(STORAGE.key_token, ''),
        setToken: token => GM_setValue(STORAGE.key_token, String(token || '').trim().replace(/^Bearer\s+/i, '')),

        key_server_mode: 'baf-server-mode',          // 'local' | 'prod'
        getServerMode: () => GM_getValue(STORAGE.key_server_mode, 'prod'),
        setServerMode: (mode) => GM_setValue(STORAGE.key_server_mode, mode),
    };

    // ====== Servers (có icon) ======
    const BAF_SERVERS = {
        local: { label: '🏠 Local', url: 'http://localhost:3000' },
        prod: { label: '🌐 Prod', url: 'https://baf.thuanle.me' },
    };



    // ====== Utility ======
    const TL = {
        log: (msg, ...args) => console.log(`[TL] ${msg}`, ...args),
        error: (msg, ...args) => console.error(`[TL] ${msg}`, ...args),
    };

    // ====== Network helpers (GM_xmlhttpRequest) ======
    TL.net = {
        gmRequest(url, init = {}) {
            const headersToObject = (h) => {
                const o = {};
                (h || new Headers()).forEach((v, k) => { o[k] = v; });
                return o;
            };
            return new Promise((resolve, reject) => {
                GM_xmlhttpRequest({
                    url,
                    method: (init.method || 'GET').toUpperCase(),
                    headers: headersToObject(init.headers),
                    data: init.body,
                    onload: (resp) => {
                        const text = resp.responseText || '';
                        let data = text;
                        const isJSON = /content-type:\s*application\/json/i.test(resp.responseHeaders || '');
                        if (isJSON) { try { data = JSON.parse(text); } catch { } }
                        TL.log(`[GM] ${resp.status} ${url}`, data);
                        resolve({
                            status: resp.status,
                            ok: resp.status >= 200 && resp.status < 300,
                            data,
                            rawText: text,
                            headers: null
                        });
                    },
                    onerror: reject,
                    ontimeout: () => reject(new Error('GM_xmlhttpRequest timeout')),
                });
            });
        }
    };

    // ====== BAF API ======
    const BAF = {
        // Trả về object {label, url} theo mode hiện tại
        getServer: async () => {
            const mode = await STORAGE.getServerMode();
            return BAF_SERVERS[mode] || BAF_SERVERS.prod;
        },

        // Trả về URL host hiện tại
        getHost: async () => {
            const s = await BAF.getServer();
            return s.url;
        },

        // Wrapper GMXHR
        request: async (method, path, { params, body, headers } = {}) => {
            const base = await BAF.getHost();
            const url = new URL(path, base);
            if (params) for (const [k, v] of Object.entries(params)) url.searchParams.append(k, v);

            const h = new Headers(headers || {});
            const token = await STORAGE.getToken();
            if (token && !h.has('Authorization')) h.set('Authorization', `Bearer ${token}`);

            const init = { method, headers: h };
            if (body !== undefined && body !== null) {
                if (!(body instanceof FormData) && !h.has('Content-Type')) h.set('Content-Type', 'application/json');
                init.body = (h.get('Content-Type') || '').includes('application/json') && typeof body !== 'string'
                    ? JSON.stringify(body)
                    : body;
            }
            return TL.net.gmRequest(url.toString(), init);
        },

        get: (path, params, init = {}) => BAF.request('GET', path, { params, headers: init.headers }),
        post: (path, body, init = {}) => BAF.request('POST', path, { body, headers: init.headers }),

        ping: () => BAF.post('/agent/ping'),
    };

    // ====== Cấu hình menu ======
    async function createGM_Menu() {
        const curSrv = await BAF.getServer();
        GM_registerMenuCommand(`Server: ${curSrv.label} (${curSrv.url})`, async () => {
          try {
            const cur = await STORAGE.getServerMode();
            const next = (cur === 'local') ? 'prod' : 'local';
            await STORAGE.setServerMode(next);
            const nsv = await BAF.getServer();
            const msg = `Switched to ${nsv.label} (${nsv.url})`;
            TL.log(msg);
            GM_notification?.({ title: 'BAF Server Switched', text: msg, timeout: 2500 });
            alert(msg);
          } catch (e) {
            TL.error('switch server error', e);
            alert('Switch server error: ' + e.message);
          }
        });
      
        GM_registerMenuCommand('Token', async () => {
          try {
            const curToken = await STORAGE.getToken();
            const input = prompt('Bearer token:', curToken || '');
            if (input !== null && input.trim() && input.trim() !== curToken) {
              await STORAGE.setToken(input);
            }
            const s = await BAF.getServer();
            const res = await BAF.ping();
            const resStr =
              `Server: ${s.label} (${s.url})\n` +
              `Status: ${res.ok ? 'Connected ✅' : 'Failed ❌'} (${res.status})`;
            TL.log(resStr);
            alert(resStr);
          } catch (e) {
            const resStr = `ping error: ${e.message}`;
            TL.error(resStr);
            alert(resStr);
          }
        });
      
    }

    // ====== Khởi tạo ======
    await createGM_Menu();
})();