export async function onRequest(context) { return handler(context.request, context); }

addEventListener("fetch", event => { event.respondWith(handler(event.request, event)); });

var BAD_CODE = {}

var CODE =  {
    "GLOBAL_INIT": async () => { },
    "INDEX": async (req) => { return new Promise("Hello,world!") },
    "EDIT": async (req) => {
        var AllCode = `export async function onRequest(context) { return handler(context.request, context); }\n\n`;
        AllCode += `addEventListener("fetch", event => { event.respondWith(handler(event.request, event)); });\n\n`
        AllCode += `var BAD_CODE = ${JSON.stringify(BAD_CODE)}\n\n`

        AllCode += "var CODE =  {\n"
        for (let i in CODE) {
            AllCode += `    "${i}": ${CODE[i].toString()},\n`
        }
        AllCode += "}\n\n";

        var router = "1234"
        var code = encodeURIComponent("async()=>{xxxx}")
        AllCode += `try { 
            let code = decodeURIComponent("${code}");
            CODE["${router}"] = eval(code)
        } catch (e) { BAD_CODE["${router}"] = code }\n\n`.replace(/\n[ ]{8}/g, "\n")

        AllCode += handler.toString()
        return new Response(AllCode);
    },
}

try { 
    let code = decodeURIComponent("async()%3D%3E%7Bxxxx%7D");
    CODE["1234"] = eval(code)
} catch (e) { BAD_CODE["1234"] = code }

async function handler(req, ctx) {
    try { await CODE.GLOBAL_INIT(req, ctx) } catch (e) { }

    try {
        return (CODE.EDIT)(req, ctx)
    } catch (e) { return new Response(e.message) }

}