// ==UserScript==
// @name         笔趣阁外观优化
// @namespace    https://gitee.com/linhq1999/OhMyScript
// @version      2.8
// @description  专注阅读
// @author       LinHQ
// @match        http*://www.shuquge.com/*.html
// @exclude      http*://www.shuquge.com/*index.html
// @match        http*://www.sywx8.com/*.html
// @match        http*://www.biqugetv.com/*.html
// @match        http*://www.bqxs520.com/*.html
// @grant        GM_addStyle
// @grant        GM_xmlhttpRequest
// @inject-into auto
// @license MIT
// @downloadURL none
// ==/UserScript==
'use strict';
/** 配置示例
* "sites": [
*   {
*       "desc": "shuquge", 网站链接关键字
*       "main": "div.reader", 主要部分选择器
*       "title": ".reader h1", 标题选择器
*       "txt": "#content", 文字部分选择器
*       "toc": "dd a", 目录链接选择器
*       "tocJump": 12, 跳过前面多少章
*       "filter": ["div.header", "div.nav", "div.link"], 带有此选择器的元素将被删除
*       "txtfilter": ["shuqu"] 带有此关键字的行将被删除
*   }
* ]
*/
(function () {
    var lineHeight = 1.3;
    var configs = {
        "sites": [
            {
                "desc": "shuquge",
                "main": "div.reader",
                "title": ".reader h1",
                "txt": "#content",
                "toc": "dd a",
                "tocJump": 12,
                "filter": ["div.header", "div.nav", "div.link"],
                "txtfilter": ["shuqu"] /*带有此关键字的行将被删除*/
            },
            {
                "desc": "sywx",
                "main": "div#container",
                "title": "div>h1",
                "toc": "li a",
                "tocJump": 0,
                "txt": "div#BookText",
                "filter": ["div.top", ".link.xb", "#footer"],
                "txtfilter": ["最快更新", "松语"]
            },
            {
                "desc": "bqxs",
                "main": ".box_con",
                "title": "div.content_read h1",
                "toc": "#list dd a",
                "tocJump": 9,
                "txt": "#content",
                "filter": [".ywtop", ".header", ".nav", ".bottem1", ".lm", "#page_set", ".bookname~.box_con"],
                "txtfilter": []
            },
            {
                "desc": "biqugetv",
                "main": ".box_con",
                "title": "div.content_read h1",
                "toc": "#list dd a",
                "tocJump": 0,
                "txt": "#content",
                "filter": [".ywtop", ".header", ".nav", ".bottem1", ".lm", "#page_set"],
                "txtfilter": []
            }
        ],
        "states": {
            "fontSize": 16,
            "lineHeight": 16 * lineHeight,
            "toc": false
        },
        "style": "\n            body {\n                background-color: #EAEAEF !important;\n            }\n\n            .bqg.inject.win {\n                width: 55vw !important;\n                min-width: 600px;\n                border: 2px double gray !important;\n                border-radius: 8px;\n            }\n\n            .bqg.inject.txt {\n                font-family: '\u6977\u4F53'!important;\n                background-color: #EAEAEF !important;\n                padding: 0.5em 1em !important;\n                margin: 0.5em auto !important;\n                width: auto !important;\n            }\n\n            .bqg.inject.title {\n                color: black;\n                background-color: #EAEAEF;\n                font-family: '\u6977\u4F53' !important;\n                cursor: pointer !important;\n            }\n\n            .bqg.inject.title:hover {\n                color: #0258d8 !important;\n            }\n            \n            .hq.inject.toc {\n                font-family: \u5FAE\u8F6F\u96C5\u9ED1,\u6587\u6CC9\u9A7F\u5FAE\u7C73\u9ED1;\n                width: 275px;\n                position: fixed;\n                top: 30px;\n                padding: 5px;\n                display: flex;\n                flex-flow: column;\n                transition: left 0.5s cubic-bezier(0.35, 1.06, 0.83, 0.99);\n                background: rgb(246 246 246 / 60%);\n                border-radius: 8px;\n            }\n\n            .hq.inject ul {\n                max-height: 280px;\n                width: 100%;\n                /*offsetTop \u8BA1\u7B97\u9700\u8981*/\n                position:relative;\n                overflow: auto;\n            }\n\n            .hq.inject ul li {\n                cursor: pointer;\n                margin: 2px;\n                width: 95%;\n                padding: 1px 4px;\n                font-size: 12px;\n                border-radius: 4px;\n            }\n\n            .hq.inject ul li:hover {\n                background: #0258d8;\n                color: #f6f6f6;\n            }\n\n            .hq.inject.toc>h3 {\n                font-size: 1.1rem;\n                font-weight: bold;\n                border-radius: 2px;\n                align-self: center;\n                cursor: pointer;\n                margin: 4px 0 8px 0;\n            }\n\n            .hq.inject.toc>h3:hover {\n                color: #ffa631 !important;\n            }\n            "
    };
    // 查询已经保存的字体信息
    var savedStates = localStorage.getItem("bqg_cfg");
    // 检查是否存在已有设置且和当前版本相符
    var states;
    if (savedStates === null) {
        states = configs.states;
        console.warn("当前状态已保存");
    }
    else {
        var cfg_1 = JSON.parse(savedStates);
        var defaultStates = Object.keys(configs.states);
        var cfg_ = Object.keys(cfg_1);
        var useSaved = true;
        // 检查键是否匹配
        if (defaultStates.length == cfg_.length) {
            for (var _i = 0, _a = Object.keys(cfg_1); _i < _a.length; _i++) {
                var key = _a[_i];
                if (!defaultStates.includes(key)) {
                    useSaved = false;
                    break;
                }
            }
        }
        else {
            useSaved = false;
        }
        if (useSaved) {
            states = cfg_1;
        }
        else {
            states = configs.states;
            console.warn("检测到版本变化，状态已重置");
        }
    }
    // 检测当前的网址，应用对应的设置
    var tmp = configs.sites.filter(function (site) { return document.URL.includes(site.desc); });
    if (tmp.length == 0) {
        console.warn("没有匹配的设置，脚本已终止！");
        return;
    }
    var cfg = tmp[0];
    // 完成样式注入
    GM_addStyle(configs.style);
    var saveStates = function () {
        localStorage.setItem("bqg_cfg", JSON.stringify(states));
    };
    // 下一章
    var prevChapter = function () {
        var _a;
        var prevs = document.querySelectorAll("a");
        for (var _i = 0, prevs_1 = prevs; _i < prevs_1.length; _i++) {
            var prev = prevs_1[_i];
            if ((_a = prev.textContent) === null || _a === void 0 ? void 0 : _a.includes("上一")) {
                prev.click();
                break;
            }
        }
    };
    // 上一章
    var nextChapter = function () {
        var _a;
        var nexts = document.querySelectorAll("a");
        for (var _i = 0, nexts_1 = nexts; _i < nexts_1.length; _i++) {
            var next = nexts_1[_i];
            if ((_a = next.textContent) === null || _a === void 0 ? void 0 : _a.includes("下一")) {
                next.click();
                break;
            }
        }
    };
    // 目录开关
    var toggleToc = function () {
        var toc = document.querySelector(".hq.inject.toc");
        if (parseInt(toc.style.left) < 0) {
            toc.style.left = "8px";
            states.toc = true;
        }
        else {
            toc.style.left = "-300px";
            states.toc = false;
        }
        // 每一次触发目录操作都保存一次状态
        saveStates();
    };
    // 对可变部分产生影响
    var doInject = function () {
        var _a, _b;
        // 执行元素过滤
        cfg.filter.forEach(function (filter) { var _a; return (_a = document.querySelectorAll(filter)) === null || _a === void 0 ? void 0 : _a.forEach(function (ele) { return ele.remove(); }); });
        // 应用已经保存的状态
        var textWin = document.querySelector(cfg.txt);
        textWin.setAttribute("style", "font-size:" + states.fontSize + "px;line-height:" + states.lineHeight + "px");
        textWin.classList.add("bqg", "inject", "txt");
        // 执行文字过滤
        if (cfg.txtfilter !== undefined) {
            textWin.innerText = (_b = (_a = textWin.innerText) === null || _a === void 0 ? void 0 : _a.split("\n\n")) === null || _b === void 0 ? void 0 : _b.filter(function (line) {
                for (var _i = 0, _a = cfg.txtfilter; _i < _a.length; _i++) {
                    var key = _a[_i];
                    if (line.includes(key)) {
                        return false;
                    }
                }
                return true;
            }).join("\n\n");
        }
        var mainWin = document.querySelector(cfg.main);
        mainWin.classList.add("bqg", "inject", "win");
        var title = document.querySelector(cfg.title);
        title.title = "点击显示目录";
        title.classList.add("bqg", "inject", "title");
        title.onclick = function (ev) {
            toggleToc();
            // 避免跳到上一章
            // 比下面的更为具体，所以有效。
            ev.stopPropagation();
        };
        // 阻止双击事件被捕获（双击会回到顶部）
        document.body.ondblclick = function (ev) { return ev.stopImmediatePropagation(); };
        document.body.onclick = function (ev) {
            var root = document.documentElement;
            var winHeight = window.innerHeight;
            // 下半屏单击下滚，反之上滚
            if (ev.clientY > root.clientHeight / 2) {
                if (root.scrollTop + winHeight >= root.scrollHeight) {
                    nextChapter();
                }
                window.scrollBy({ top: (window.innerHeight - lineHeight) * 1 });
            }
            else {
                if (root.scrollTop === 0) {
                    prevChapter();
                }
                window.scrollBy({ top: (window.innerHeight - lineHeight) * -1 });
            }
        };
        document.body.onkeydown = function (ev) {
            switch (ev.key) {
                case "-":
                    states.fontSize -= 2;
                    textWin.style.fontSize = states.fontSize + "px";
                    states.lineHeight = states.fontSize * lineHeight;
                    textWin.style.lineHeight = states.lineHeight + "px";
                    saveStates();
                    break;
                case "=":
                    states.fontSize += 2;
                    textWin.style.fontSize = states.fontSize + "px";
                    states.lineHeight = states.fontSize * lineHeight;
                    textWin.style.lineHeight = states.lineHeight + "px";
                    saveStates();
                    break;
                case "j":
                    window.scrollBy({ top: window.innerHeight - states.lineHeight });
                    break;
                case "k":
                    window.scrollBy({ top: -1 * (window.innerHeight - states.lineHeight) });
                    break;
                case "h":
                    prevChapter();
                    break;
                case "l":
                    nextChapter();
                    break;
                case "t":
                    toggleToc();
                    break;
                default:
                    break;
            }
        };
    };
    // 先调用一次，后面是有变化时才会触发，避免有时无法起作用
    doInject();
    // 强力覆盖
    new MutationObserver(function (_, ob) {
        doInject();
    }).observe(document.body, { childList: true });
    // 添加目录
    var toc = document.createElement("div");
    toc.className = "hq inject toc";
    toc.onclick = function (ev) { return ev.stopPropagation(); };
    // 已保存状态读取
    toc.style.left = (states.toc) ? "8px" : "-300px";
    document.body.append(toc);
    // 目录状态指示灯
    var pointer = document.createElement("h3");
    var pointerColors = { "loaded": "#afdd22", "loading": "#ffa631", "unload": "#ed5736" };
    pointer.title = "点击以重新加载目录";
    pointer.innerHTML = "目<span style='display: inline-block;width: 1em'></span>录";
    pointer.style.color = pointerColors.unload;
    toc.append(pointer);
    // 目录列表
    var ul = document.createElement("ul");
    toc.append(ul);
    // fetchTOC 获取目录信息并重新渲染
    var fetchTOC = function (currentBookLink, pointer) {
        // 修改指示灯状态
        pointer.style.color = pointerColors.loading;
        GM_xmlhttpRequest({
            url: currentBookLink,
            // 直接返回 dom
            responseType: "document",
            onload: function (resp) {
                var _a, _b;
                var doc = resp.response;
                var tocs = doc.querySelectorAll(cfg.toc);
                var data = [];
                // 序列化存储准备
                for (var _i = 0, tocs_1 = tocs; _i < tocs_1.length; _i++) {
                    var link = tocs_1[_i];
                    data.push({ "title": (_a = link.textContent) !== null && _a !== void 0 ? _a : "", "href": (_b = link.href) !== null && _b !== void 0 ? _b : "" });
                }
                if (cfg.tocJump)
                    data = data.slice(cfg.tocJump + 1);
                // 缓存目录信息
                sessionStorage.setItem(currentBookLink, JSON.stringify(data));
                renderToc(data, ul);
                pointer.style.color = pointerColors.loaded;
            },
            onerror: function (_) { return pointer.style.color = pointerColors.unload; }
        });
    };
    var renderToc = function (toc, ul) {
        // 清空旧内容
        ul.innerHTML = "";
        var current = null;
        // 进度计数器
        var counter = 1;
        var _loop_1 = function (lnk) {
            var li = document.createElement("li");
            li.textContent = lnk.title;
            if (current == null && document.URL == lnk.href) {
                li.innerHTML = lnk.title + "<span style=\"flex: 1;\"></span>" + (counter / toc.length * 100).toFixed(1) + "%";
                current = li;
            }
            li.onclick = function (ev) {
                document.location.href = lnk.href;
                ev.stopPropagation();
            };
            ul.append(li);
            counter++;
        };
        for (var _i = 0, toc_1 = toc; _i < toc_1.length; _i++) {
            var lnk = toc_1[_i];
            _loop_1(lnk);
        }
        // 滚动到当前位置，并高亮
        current === null || current === void 0 ? void 0 : current.setAttribute("style", "display:flex;font-weight:bold;background: #0258d8;color: #f6f6f6;");
        ul.scrollTo({ top: (current === null || current === void 0 ? void 0 : current.offsetTop) - 130 });
    };
    var source = document.URL.split("/");
    source.pop();
    // 最后加斜杠保险
    var currentBook = source.join("/") + "/";
    var currentBookToc = sessionStorage.getItem(currentBook);
    if (currentBookToc === null) {
        fetchTOC(currentBook, pointer);
    }
    else {
        pointer.style.color = pointerColors.loaded;
        renderToc(JSON.parse(currentBookToc), ul);
    }
    // 单击指示灯刷新目录缓存
    pointer.onclick = function () { return fetchTOC(currentBook, pointer); };
})();