/* eslint-disable */

var marked = require("marked");
var yaml = (yaml = require("js-yaml"));
var rYml = /^\s*---([\s\S]*?)---\s/;
var renderer = new marked.Renderer();
marked.setOptions({
    renderer: renderer,
    gfm: true,
    tables: true,
    breaks: false,
    pedantic: false,
    sanitize: true,
    smartLists: true,
    smartypants: false
});

// Synchronous highlighting with highlight.js
marked.setOptions({
    highlight: function(code) {
        return require("highlight.js").highlightAuto(code).value;
    }
});

// renderer.table = function(header, body) {
//   return '<table class="table table-striped">\n'
//     + '<thead>\n'
//     + header
//     + '</thead>\n'
//     + '<tbody>\n'
//     + body
//     + '</tbody>\n'
//     + '</table>\n';
// };

renderer.link = function(href, title, text) {
    if (this.options.sanitize) {
        try {
            var prot = decodeURIComponent(unescape(href))
            .replace(/[^\w:]/g, "")
            .toLowerCase();
        } catch (e) {
            return "";
        }
        if (
            prot.indexOf("javascript:") === 0 ||
            prot.indexOf("vbscript:") === 0
        ) {
            return "";
        }
    }
    if (href && href[0] === "#") {
        href = "#" +
        encodeURIComponent(
            href
            .substring(1)
            .toLowerCase()
            .replace(/[^\u4e00-\u9fa5_a-zA-Z0-9]+/g, "-")
        );
    }

    var out = '<a href="' + href + '"';
    if (title) {
        out += ' title="' + title + '"';
    }
    out += ">" + text + "</a>";
    return out;
};

module.exports = function(content, file) {
    var m = rYml.exec(content);
    var info = {};
    if (m && m[1]) {
        info = yaml.safeLoad(m[1]);
        content = content.substring(m[0].length);
    }

    var toc = {
        label: "目录",
        type: "toc",
        children: [],
        level: 0
    };
    var stack = [toc];

    renderer.heading = function(text, level) {
        var escapedText = encodeURIComponent(
            text.toLowerCase().replace(/[^\u4e00-\u9fa5_a-zA-Z0-9]+/g, "-")
        );

        if (level < 5) {
            var menu = {
                label: text,
                fragment: escapedText,
                fullPath: "#" + escapedText,
                level: level
            };

            while (stack.length && stack[0].level >= level) {
                stack.shift();
            }

            stack[0].children = stack[0].children || [];
            stack[0].children.push(menu);

            stack.unshift(menu);
        }

        var anchor =
        '<a class="anchor" name="' +
        escapedText +
        '" href="#' +
        escapedText +
        '" aria-hidden="true"><svg aria-hidden="true" class="octicon octicon-link" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>';

        return "<h" + level + ">" + anchor + text + "</h" + level + ">";

        // return '<h' + level + '><a name="' +
        //   escapedText +
        //   '" class="anchor" href="#' +
        //   escapedText +
        //   '"><span class="header-link"></span></a>' +
        //   text + '</h' + level + '>';
    };

    const placeholder = {};
    let index = 1;

    content = content.replace(
        /```(schema|html)(?::(.*?))?\n([\s\S]*?)```/g,
        function(_, lang, attr, code) {
            const setting = {};
            attr && attr.split(/\s+/).forEach(function(item) {
                var parts = item.split("=");

                if (parts[1] && /^('|").*\1/.test(parts[1])) {
                    parts[1] = parts[1].substring(1, parts[1].length - 1);
                }

                setting[parts[0]] = parts[1] ? decodeURIComponent(parts[1]) : "";

                if (parts[0] === 'height') {
                    setting.height = parseInt(setting.height, 10) + 200/*编辑器的高度*/;
                    attr = attr.replace(item, `height="${setting.height}"`);

                }
            });


            // placeholder[index] = `<iframe class="doc-iframe" width="100%" height="${setting.height || 200}px" frameBorder="0" src="/play?code=${encodeURIComponent(code)}&scope=${encodeURIComponent(setting.scope)}"></iframe>`;
            if (lang === "html") {
                placeholder[
                    index
                ] = `<div class="amis-doc"><div class="preview">${code}</div><pre><code class="lang-html">${
                    require("highlight.js").highlightAuto(code).value
                }</code></pre></div>`;
            } else {
                placeholder[
                    index
                ] = `<div class="amis-preview" style="height: ${
                    setting.height
                }px"><script type="text/schema" ${attr}>${code}</script></div>`;
            }

            return `[[${index++}]]`;
        }
    );

    content = marked(content).replace(/<p>\[\[(\d+)\]\]<\/p>/g, function(
        _,
        id
    ) {
        return placeholder[id] || "";
    });

    content = fis.compile.partial(content, file, "html");
    info.html = content;
    info.toc = toc;

    return "module.exports = " + JSON.stringify(info, null, 2) + ";";
};