// ==UserScript==
// @name         广建智能查寝
// @namespace    http://tampermonkey.net/
// @version      10.5
// @description  全链路 Proxy 隐蔽劫持 + 腾讯地图 API 拦截 + 可自由拖拽悬浮窗 + 动态抖动防检测。
// @author       Security Researcher
// @license      MIT
// @match        *://xsgz.gdcvi.edu.cn/*
// @match        *://*.gdcvi.edu.cn/*
// @match        *://*.map.qq.com/*
// @match        *://*.mapapi.qq.com/*
// @match        *://*.lbs.qq.com/*
// @match        *://*.3gimg.qq.com/*
// @grant        GM_getValue
// @grant        GM_setValue
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';

    const DEFAULT_LAT = 23.736924;
    const DEFAULT_LNG = 113.087081;

    let FAKE_LAT = GM_getValue('fake_lat', DEFAULT_LAT);
    let FAKE_LNG = GM_getValue('fake_lng', DEFAULT_LNG);

    const getBaseCoords = () => {
        const jitter = () => (Math.random() - 0.5) * 0.00008;
        return {
            lat: FAKE_LAT + jitter(),
            lng: FAKE_LNG + jitter(),
            acc: Math.floor(15 + Math.random() * 12)
        };
    };

    const getW3CPosition = () => {
        const c = getBaseCoords();
        return {
            coords: { latitude: c.lat, longitude: c.lng, accuracy: c.acc, altitude: null, altitudeAccuracy: null, heading: null, speed: null },
            timestamp: Date.now()
        };
    };

    const getTencentPosition = () => {
        const c = getBaseCoords();
        return { module: 'geolocation', type: 'h5', lat: c.lat, lng: c.lng, accuracy: c.acc, adcode: '', nation: '中国' };
    };

    try {
        localStorage.clear();
        sessionStorage.clear();
    } catch (e) {}

    const nativeFunctions = new WeakSet();
    const originalToString = Function.prototype.toString;

    Function.prototype.toString = new Proxy(originalToString, {
        apply(target, thisArg, args) {
            if (nativeFunctions.has(thisArg)) {
                return `function ${thisArg.name || ''}() { [native code] }`;
            }
            return Reflect.apply(target, thisArg, args);
        }
    });
    nativeFunctions.add(Function.prototype.toString);

    if (navigator.geolocation) {
        const cachedMethods = {};

        const hookMethod = (originalMethod, name) => {
            if (cachedMethods[name]) return cachedMethods[name];

            const proxy = new Proxy(originalMethod, {
                apply(target, thisArg, args) {
                    const successCallback = args[0];
                    const pos = getW3CPosition();
                    if (typeof successCallback === 'function') {
                        setTimeout(() => successCallback(pos), 400 + Math.random() * 200);
                    }
                    if (name === 'watchPosition') return Math.floor(Math.random() * 100000);
                }
            });
            nativeFunctions.add(proxy);
            cachedMethods[name] = proxy;
            return proxy;
        };

        const geoProxy = new Proxy(navigator.geolocation, {
            get(target, prop, receiver) {
                if (prop === 'getCurrentPosition') return hookMethod(target[prop], 'getCurrentPosition');
                if (prop === 'watchPosition') return hookMethod(target[prop], 'watchPosition');
                if (prop === 'clearWatch') return function() {};
                return Reflect.get(target, prop, receiver);
            }
        });

        const originalDescriptor = Object.getOwnPropertyDescriptor(Navigator.prototype, 'geolocation');
        if (originalDescriptor && originalDescriptor.get) {
            const hookedGetter = new Proxy(originalDescriptor.get, { apply() { return geoProxy; } });
            nativeFunctions.add(hookedGetter);
            Object.defineProperty(Navigator.prototype, 'geolocation', {
                get: hookedGetter,
                set: originalDescriptor.set,
                enumerable: originalDescriptor.enumerable,
                configurable: false
            });
        } else {
            Object.defineProperty(navigator, 'geolocation', { get: function() { return geoProxy; }, enumerable: true, configurable: false });
        }

        if (window.Geolocation && window.Geolocation.prototype) {
            const proto = window.Geolocation.prototype;
            const origGetCurrent = proto.getCurrentPosition;
            if (origGetCurrent) {
                Object.defineProperty(proto, 'getCurrentPosition', {
                    value: hookMethod(origGetCurrent, 'getCurrentPosition'),
                    writable: false,
                    configurable: false
                });
            }
            const origWatch = proto.watchPosition;
            if (origWatch) {
                Object.defineProperty(proto, 'watchPosition', {
                    value: hookMethod(origWatch, 'watchPosition'),
                    writable: false,
                    configurable: false
                });
            }
        }
    }

    const hookedTencent = new WeakSet();

    const createGeoProxy = (obj) => {
        if (!obj || typeof obj !== 'function' || hookedTencent.has(obj)) return obj;
        hookedTencent.add(obj);

        const proxy = new Proxy(obj, {
            construct(target, args) {
                const instance = Reflect.construct(target, args);
                const cachedInsMethods = {};
                return new Proxy(instance, {
                    get(insTarget, insProp) {
                        if (insProp === 'getLocation' || insProp === 'getIpLocation') {
                            if (cachedInsMethods[insProp]) return cachedInsMethods[insProp];

                            const methodProxy = new Proxy(insTarget[insProp], {
                                apply(fnTarget, thisArg, fnArgs) {
                                    const successCallback = fnArgs[0];
                                    const pos = getTencentPosition();
                                    if (typeof successCallback === 'function') {
                                        setTimeout(() => successCallback(pos), 350 + Math.random() * 150);
                                    }
                                }
                            });
                            nativeFunctions.add(methodProxy);
                            cachedInsMethods[insProp] = methodProxy;
                            return methodProxy;
                        }
                        return Reflect.get(insTarget, insProp);
                    }
                });
            }
        });
        nativeFunctions.add(proxy);
        return proxy;
    };

    const createMapsProxy = (obj) => {
        if (!obj || typeof obj !== 'object' || hookedTencent.has(obj)) return obj;
        hookedTencent.add(obj);

        return new Proxy(obj, {
            get(target, prop) {
                const val = Reflect.get(target, prop);
                if (prop === 'Geolocation') return createGeoProxy(val);
                return val;
            },
            set(target, prop, value) {
                if (prop === 'Geolocation') value = createGeoProxy(value);
                return Reflect.set(target, prop, value);
            }
        });
    };

    const createQQProxy = (obj) => {
        if (!obj || typeof obj !== 'object' || hookedTencent.has(obj)) return obj;
        hookedTencent.add(obj);

        return new Proxy(obj, {
            get(target, prop) {
                const val = Reflect.get(target, prop);
                if (prop === 'maps') return createMapsProxy(val);
                return val;
            },
            set(target, prop, value) {
                if (prop === 'maps') value = createMapsProxy(value);
                return Reflect.set(target, prop, value);
            }
        });
    };

    let _qq = window.qq;
    if (_qq) _qq = createQQProxy(_qq);

    Object.defineProperty(window, 'qq', {
        get() { return _qq; },
        set(val) { _qq = createQQProxy(val); },
        configurable: true,
        enumerable: true
    });

    function createInjectUI() {
        if (window !== window.top) return;

        const hostId = 'gdcvi-host-' + Math.random().toString(36).substring(2);
        const host = document.createElement('div');
        host.id = hostId;
        host.style.cssText = 'position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 2147483647;';
        document.documentElement.appendChild(host);

        const shadow = host.attachShadow({ mode: 'closed' });

        const style = document.createElement('style');
        style.textContent = `
            * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
            #fab { position: absolute; top: 100px; right: 20px; width: 50px; height: 50px; background: rgba(40, 167, 69, 0.9); border-radius: 50%; box-shadow: 0 4px 15px rgba(0,0,0,0.3); pointer-events: auto; display: flex; justify-content: center; align-items: center; font-size: 24px; color: white; cursor: pointer; user-select: none; backdrop-filter: blur(5px); transition: transform 0.1s; z-index: 1000; }
            #fab:active { transform: scale(0.9); }
            #overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); opacity: 0; pointer-events: none; transition: opacity 0.3s ease; z-index: 998; backdrop-filter: blur(2px); }
            #overlay.active { opacity: 1; pointer-events: auto; }
            #bottom-sheet { position: absolute; bottom: -100%; left: 0; width: 100%; background: #fff; border-top-left-radius: 20px; border-top-right-radius: 20px; padding: 20px; box-shadow: 0 -4px 20px rgba(0,0,0,0.15); pointer-events: auto; transition: bottom 0.3s cubic-bezier(0.25, 0.8, 0.25, 1); z-index: 999; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
            #bottom-sheet.active { bottom: 0; }
            .sheet-handle { width: 40px; height: 5px; background: #ddd; border-radius: 3px; margin: 0 auto 15px; }
            .sheet-title { text-align: center; font-weight: 600; font-size: 16px; margin-bottom: 20px; color: #333; }
            .input-group { display: flex; gap: 12px; margin-bottom: 20px; }
            .input-box { flex: 1; display: flex; flex-direction: column; gap: 5px; }
            .input-box label { font-size: 12px; color: #666; font-weight: 500; }
            .input-box input { width: 100%; padding: 12px; border: 1px solid #e0e0e0; border-radius: 10px; font-size: 15px; outline: none; background: #f8f9fa; transition: border 0.2s; }
            .input-box input:focus { border-color: #28a745; background: #fff; }
            .btn-group { display: flex; gap: 12px; }
            button { flex: 1; padding: 14px; border: none; border-radius: 12px; font-weight: 600; font-size: 15px; cursor: pointer; color: white; transition: opacity 0.2s; }
            button:active { opacity: 0.8; }
            #btn-save { background: linear-gradient(135deg, #28a745, #20c997); box-shadow: 0 4px 10px rgba(40,167,69,0.3); }
            #btn-reset { background: #6c757d; }
            #toast { position: absolute; top: 40px; left: 50%; transform: translateX(-50%); padding: 12px 24px; border-radius: 30px; color: white; font-size: 14px; font-weight: 600; opacity: 0; pointer-events: none; transition: opacity 0.3s ease, top 0.3s ease; box-shadow: 0 4px 15px rgba(0,0,0,0.2); white-space: nowrap; z-index: 2000; }
            .coffee-area { margin-top: 15px; text-align: center; }
            .coffee-link { font-size: 12px; color: #6c757d; text-decoration: none; border-bottom: 1px dashed #ccc; padding-bottom: 2px; }
            .coffee-qr-box { display: none; margin-top: 12px; transition: all 0.3s ease; }
            .coffee-qr-box img { width: 130px; height: 130px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
            .coffee-tips { font-size: 11px; color: #999; margin-top: 6px; }
        `;
        shadow.appendChild(style);

        const overlay = document.createElement('div');
        overlay.id = 'overlay';
        shadow.appendChild(overlay);

        const fab = document.createElement('div');
        fab.id = 'fab';
        fab.innerText = '📍';
        shadow.appendChild(fab);

        const sheet = document.createElement('div');
        sheet.id = 'bottom-sheet';
        sheet.innerHTML = `
            <div class="sheet-handle"></div>
            <div class="sheet-title">智能定位控制台</div>
            <div class="input-group">
                <div class="input-box">
                    <label>纬度 (Latitude)</label>
                    <input type="number" id="lat" value="${FAKE_LAT}">
                </div>
                <div class="input-box">
                    <label>经度 (Longitude)</label>
                    <input type="number" id="lng" value="${FAKE_LNG}">
                </div>
            </div>
            <div class="btn-group">
                <button id="btn-save">✅ 应用坐标</button>
                <button id="btn-reset">🏠 回宿舍</button>
            </div>
            <div class="coffee-area">
                <a href="#" id="btn-coffee" class="coffee-link">☕ Buy me a coffee</a>
                <div id="coffee-qr-box" class="coffee-qr-box">
                    <img src="https://picui.ogmua.cn/s1/2026/04/07/69d46f035db1c.webp" alt="QR Code">
                    <div class="coffee-tips">Scan to support</div>
                </div>
            </div>
        `;
        shadow.appendChild(sheet);

        const toast = document.createElement('div');
        toast.id = 'toast';
        shadow.appendChild(toast);

        const showToast = (msg, isError = false) => {
            toast.style.backgroundColor = isError ? '#dc3545' : '#28a745';
            toast.innerText = msg;
            setTimeout(() => { toast.style.opacity = '1'; toast.style.top = '60px'; }, 10);
            setTimeout(() => { toast.style.opacity = '0'; toast.style.top = '40px'; }, 2000);
        };

        const toggleSheet = (show) => {
            if (show) {
                sheet.classList.add('active');
                overlay.classList.add('active');
            } else {
                sheet.classList.remove('active');
                overlay.classList.remove('active');
                shadow.getElementById('coffee-qr-box').style.display = 'none';
            }
        };

        overlay.addEventListener('click', () => toggleSheet(false));
        shadow.querySelector('.sheet-handle').addEventListener('click', () => toggleSheet(false));

        shadow.getElementById('btn-coffee').addEventListener('click', (e) => {
            e.preventDefault();
            const qrBox = shadow.getElementById('coffee-qr-box');
            qrBox.style.display = (qrBox.style.display === 'block') ? 'none' : 'block';
        });

        let isDragging = false;
        let isMoved = false;
        let startX, startY, startLeft, startTop;

        const startDrag = (e) => {
            if (e.type.includes('touch') && e.touches.length > 1) return;
            isDragging = true;
            isMoved = false;
            const clientX = e.type.includes('touch') ? e.touches[0].clientX : e.clientX;
            const clientY = e.type.includes('touch') ? e.touches[0].clientY : e.clientY;
            startX = clientX;
            startY = clientY;
            startLeft = fab.offsetLeft;
            startTop = fab.offsetTop;
            fab.style.transition = 'none';
        };

        const doDrag = (e) => {
            if (!isDragging) return;
            if (e.type.includes('touch') && e.touches.length > 1) {
                isDragging = false;
                return;
            }
            const clientX = e.type.includes('touch') ? e.touches[0].clientX : e.clientX;
            const clientY = e.type.includes('touch') ? e.touches[0].clientY : e.clientY;
            const dx = clientX - startX;
            const dy = clientY - startY;

            if (Math.abs(dx) > 3 || Math.abs(dy) > 3) {
                isMoved = true;
                e.preventDefault();
            }

            if (isMoved) {
                let newLeft = startLeft + dx;
                let newTop = startTop + dy;
                const maxLeft = window.innerWidth - fab.offsetWidth;
                const maxTop = window.innerHeight - fab.offsetHeight;

                fab.style.left = `${Math.max(0, Math.min(newLeft, maxLeft))}px`;
                fab.style.top = `${Math.max(0, Math.min(newTop, maxTop))}px`;
            }
        };

        const stopDrag = () => {
            if (!isDragging) return;
            isDragging = false;
            fab.style.transition = 'transform 0.1s';
            if (!isMoved) {
                toggleSheet(true);
            }
        };

        fab.addEventListener('mousedown', startDrag);
        fab.addEventListener('touchstart', startDrag, { passive: false });
        window.addEventListener('mousemove', doDrag, { passive: false });
        window.addEventListener('touchmove', doDrag, { passive: false });
        window.addEventListener('mouseup', stopDrag);
        window.addEventListener('touchend', stopDrag);

        shadow.getElementById('btn-save').addEventListener('click', () => {
            const newLat = parseFloat(shadow.getElementById('lat').value);
            const newLng = parseFloat(shadow.getElementById('lng').value);
            if (!isNaN(newLat) && !isNaN(newLng)) {
                GM_setValue('fake_lat', newLat);
                GM_setValue('fake_lng', newLng);
                toggleSheet(false);
                showToast('✅ 坐标已更新，正在刷新...', false);
                setTimeout(() => location.reload(), 1200);
            } else {
                showToast('❌ 输入无效，请确认输入的是数字！', true);
            }
        });

        shadow.getElementById('btn-reset').addEventListener('click', () => {
            GM_setValue('fake_lat', DEFAULT_LAT);
            GM_setValue('fake_lng', DEFAULT_LNG);
            shadow.getElementById('lat').value = DEFAULT_LAT;
            shadow.getElementById('lng').value = DEFAULT_LNG;
            toggleSheet(false);
            showToast('🏠 已恢复默认宿舍，正在刷新...', false);
            setTimeout(() => location.reload(), 1200);
        });
    }

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', createInjectUI);
    } else {
        createInjectUI();
    }
})();