/* eslint-disable */

var rLinkScript = /(<!(?:--)?\[[\s\S]*?<\!\[endif\](?:--)?>|<!--[\s\S]*?(?:-->|$))|(?:(\s*<script([^>]*)>([\s\S]*?)<\/script>)|(?:\s*(<link([^>]*?)(?:\/)?>)|(<style([^>]*)>([\s\S]*?)<\/style>)))(<!--ignore-->)?\n?/ig;
var rScriptType = /type=('|")(.*?)\1/i;
var rSrcHref = /\s*(?:src|href)=('|")(.+?)\1/i;
var rRefStyle = /rel=('|")stylesheet\1/i;
var path = require('path');
var css = require('css');
var rSourceMap = /(?:\/\/\#\s*sourceMappingURL[^\r\n\'\"]*|\/\*\#\s*sourceMappingURL[^\r\n\'\"]*\*\/)(?:\r?\n|$)/ig;
var caches = {};
var createResource = fis.require('postpackager-loader/lib/resource.js');

function prefixCss(code, prefix) {
    var cssAst = css.parse(code);
    prefixNode(cssAst);
    return css.stringify(cssAst) + '\n' + prefix + '{background-color: #f0f3f4;position: relative;} \n' + prefix + ' .app {padding-bottom:0;}';

    function prefixSelector(sel){
        if (sel.match(/^@/)) return sel;
        var m = sel.match(/(^| )(body|html)($|\W.*)/i);
        if (m)
            return m[1] + prefix + m[3];
        else if (sel.match(/^\.is\-modalOpened/))
            return sel.replace(/^\.is\-modalOpened\s/, '.is-modalOpened ' + prefix + ' ')
        else if (sel.match(/^(?:\.fr-|\.fa)/))
            return sel;
        else
            return prefix + ' ' + sel;
    }

    function prefixNode(node) {
        if (node.selectors) {
            node.selectors = node.selectors.map(prefixSelector);
        } else if (node.stylesheet) {
            node.stylesheet.rules.forEach(prefixNode);
        } else if (node.rules) {
            node.rules.forEach(prefixNode);
        }
    }
}

function unicodeJs(str) {
    return str.replace(/([\u4E00-\u9FA5]|[\uFE30-\uFFA0]|[\u2019])/g, function(_, value){
        return '\\u' + value.charCodeAt(0).toString(16);
    });
}

module.exports = function (ret, pack, settings, opt) {
    var root = fis.project.getProjectPath();

    var tpl = ret.pkg['/examples/sdk-placeholder.html'];
    tpl.skiped = true;

    if (tpl && tpl._fromCache && caches[tpl.id]) {
        tpl.setContent(caches[tpl.id]);
        return;
    } else if (!tpl) {
        return;
    }

    var mapping = {};
    var contents = tpl.getContent();
    var cssContents = '';
    var jsContents = '';
    var entryJs = '';
    var resource = tpl._resource;

    var files = ret.pkg;
    Object.keys(files).forEach(function (subpath) {
        var file = files[subpath];

        mapping[file.getUrl()] = file;
    });

    contents.replace(rLinkScript, function (all, comment, script, attrs, body, link, lattrs, style, sattrs, sbody, ignored) {
        // 忽略注释。
        if (comment || ignored) {
            return all;
        }

        if (script && !body.trim() && rSrcHref.test(attrs)) {
            all = '';
            let src = RegExp.$2;
            let file = resource.getFileByUrl(src);

            if (!file) {
                file = resource.getFileByUrl(fis.util(path.join(path.dirname(tpl.release), src)));
            }

            if (!file) {
                file = mapping[src];
            }

            if (file) {
                file.skiped = true;
                let contents = file.getContent();

                if (/_map\.js$/.test(file.subpath)) {
                    contents = `(function() {
    var d = '';
    try {
        throw new Error()
    } catch (e) {
        d = (/((?:https?|file)\:.*)$/.test(e.stack) && RegExp.$1).replace(/\\/[^\\/]*$/, '');
    }
    ${contents.replace(/\"url\"\s*\:\s*('|")(\.\/.*)\1/g, function(_, quote, value) {
        return `"url": d + ${quote}${value.substring(1)}${quote}`;
    })}
        })()`;
                }

                jsContents += contents + ';\n';
            }

        } else if (script && !rScriptType.test(attrs) || rScriptType.test(attrs) && ~['text/javascript', 'application/javascript'].indexOf(RegExp.$2.toLowerCase())) {
            entryJs += ';' + body;
            all = '';
        } else if (link && rRefStyle.test(lattrs) && rSrcHref.test(lattrs)) {
            var href = RegExp.$2;
            let file = resource.getFileByUrl(href);

            if (!file) {
                file = resource.getFileByUrl(fis.util(path.join(path.dirname(tpl.release), href)));
            }

            if (!file) {
                file = mapping[href];
            }


            if (file) {
                cssContents += '\n' + file.getContent();
                file.skiped = true;
            }
            all = '';
        } else if (style && sbody.trim()) {
            cssContents += sbody;
            all = '';
        }

        return all;
    });

    jsContents = jsContents.replace(rSourceMap, '');
    jsContents = unicodeJs(jsContents);

    let jsFile = fis.file(root, 'sdk.js');
    jsFile.setContent(jsContents);
    ret.pkg[jsFile.subpath] = jsFile;

    cssContents = prefixCss(cssContents, '.amis-scope');
    let cssFile = fis.file(root, 'sdk.css');
    cssFile.setContent(cssContents);
    ret.pkg[cssFile.subpath] = cssFile;

    // tpl.setContent(contents);
    caches[tpl.id] = contents;
};