const fs = require("fs");
const path = require("path");
const do_task = require("./single-html/build");

const outputPrefix = '';
const htmlChannel = ['applovin', 'unity', 'appier', 'ironsource', 'mintegral', 'moloco'];

// 创建 dist 目录
if (!fs.existsSync('dist')) {
    fs.mkdirSync('dist');
}

// 处理 HTML 渠道
async function processHtmlChannels() {
    for (const channelName of htmlChannel) {
        // 删除所有可能存在的旧文件
        const filesToDelete = ['mraid_support.js', 'mraid.js', 'mintegral.js', 'moloco.js'];
        filesToDelete.forEach(file => {
            const filePath = path.join('web-mobile', file);
            if (fs.existsSync(filePath)) {
                fs.unlinkSync(filePath);
                console.log(`已删除: ${filePath}`);
            }
        });

        // 从 networks 找到复制到 web-mobile 中
        const mraidSupportFile = path.join('networks', 'mraid_support.js');
        const mraidDestinationFile = path.join('web-mobile', 'mraid_support.js');

        if (['applovin', 'unity', 'appier', 'ironsource'].includes(channelName)) {
            if (fs.existsSync(mraidSupportFile)) {
                fs.copyFileSync(mraidSupportFile, mraidDestinationFile);
                console.log(`已复制: ${mraidSupportFile} 到 ${mraidDestinationFile}`);
            }
        }

        if (['mintegral', 'moloco'].includes(channelName)) {
            const fileName = `${channelName}.js`;
            const sourceFile = path.join('networks', fileName);
            const destFile = path.join('web-mobile', fileName);
            if (fs.existsSync(sourceFile)) {
                fs.copyFileSync(sourceFile, destFile);
                console.log(`已复制: ${sourceFile} 到 ${destFile}`);
            }
        }

        const htmlFilePath = path.join('web-mobile', 'index.html');
        let htmlContent = fs.readFileSync(htmlFilePath, 'utf-8');

        // 移除非当前渠道包的 <script> 标签
        htmlChannel.forEach(channel => {
            if (channel !== channelName) {
                const scriptRegex = new RegExp(`<script src="${channel}.js" charset="utf-8"></script>\\n`, 'g');
                htmlContent = htmlContent.replace(scriptRegex, '');
            }
        });

        // 移除 mraid_support.js 和 mraid.js 的 <script> 标签
        htmlContent = htmlContent.replace(/<script src="mraid_support.js" charset="utf-8"><\/script>\n/g, '');
        htmlContent = htmlContent.replace(/<script src="mraid.js"><\/script>\n/g, '');

        // 检查并插入新的渠道 script 标签
        let channelScriptTag;
        if (['applovin', 'unity', 'appier', 'ironsource'].includes(channelName)) {
            channelScriptTag = `   <script src="mraid_support.js" charset="utf-8"></script>\n`;
        } else {
            channelScriptTag = `   <script src="${channelName}.js" charset="utf-8"></script>\n`;
        }

        if (!htmlContent.includes(channelScriptTag)) {
            htmlContent = htmlContent.replace(/<\/head>/, `${channelScriptTag}</head>`);
        }

        // 替换包含 window.vConsole = new VConsole 的 <script> 标签
        const vConsoleScriptRegex = /<script type="text\/javascript">[\s\S]*?window\.vConsole = new VConsole\(\);[\s\S]*?<\/script>/;
        // @TODO cocos的名称需要从web-mobile文件夹中获取找到
        const cocosFileName = fs.readdirSync('web-mobile').find(file => file.startsWith('cocos2d-js-min') && file.endsWith('.js'));
        const cocosScriptTag = `<script src="${cocosFileName}" charset="utf-8"></script>\n`;
        htmlContent = htmlContent.replace(vConsoleScriptRegex, cocosScriptTag);

        // 额外引入 loader-and-starter.js 和 asset-map.js 到 body 中
        const loaderScriptTag = `<script src="loader-and-starter.js" charset="utf-8"></script>\n`;
        const assetMapScriptTag = `<script src="asset-map.js" charset="utf-8"></script>\n`;
        const bodyScriptTags = `${cocosScriptTag}${loaderScriptTag}${assetMapScriptTag}`;

        if (!htmlContent.includes(loaderScriptTag) && !htmlContent.includes(assetMapScriptTag)) {
            htmlContent = htmlContent.replace(cocosScriptTag, bodyScriptTags);
        }

        // 移除单渠道的 SDK script 标签
        const sdkScriptTag = `<script src="https://sf16-muse-va.ibytedtos.com/obj/union-fe-nc-i18n/playable/sdk/playable-sdk.js"></script>\n`;
        htmlContent = htmlContent.replace(sdkScriptTag, '');

        fs.writeFileSync(htmlFilePath, htmlContent);
        console.log(`已将 ${channelName}.js 和相关 script 引入到 index.html 中`);

        // 调用 do_task 方法，将 web-mobile 下的所有包打包成一个 HTML
        do_task();

        // 如果是 ironsource 渠道，将 <script src="mraid.js"></script> 插入到 body 标签之前
        if (channelName === 'ironsource') {
            htmlContent = fs.readFileSync(path.join('dist', 'index.html'), 'utf-8');
            htmlContent = htmlContent.replace(/<\/body>/, `<script src="mraid.js"></script></body>`);
            fs.writeFileSync(path.join('dist', 'index.html'), htmlContent);
            console.log(`已将 <script src="mraid.js"></script> 写入到 ironsource.html 的 body 标签之前`);
        }

        // 重命名生成的 index.html 为对应的渠道名称
        const distIndexPath = path.join('dist', 'index.html');
        const channelIndexPath = path.join('dist', `${outputPrefix}${channelName}.html`);
        if (fs.existsSync(distIndexPath)) {
            fs.renameSync(distIndexPath, channelIndexPath);
            console.log(`已重命名 index.html 为 ${channelName}.html`);
        }
    }
}

processHtmlChannels();