import { createReadStream, existsSync, unlink, unlinkSync } from "node:fs"
import { } from "fs/promises"
import { join } from "path"

export default defineEventHandler(async (event) => {
    const session = await getUserSession(event)
    //const query = await getQuery(event)

    // @ts-ignore
    const userId = session.secure?.user_id;
    if (userId == undefined || userId == null)
        throw createError({ status: 401 })

    const file = await getRouterParam(event, 'file');
    if (file == undefined)
        throw createError({ status: 400, message: "No file"})
    
    const def_filepath = "/home/suricatingss/Projects/WebStorm/yt2mp3/server/fastapi_server/downloads";
    const filepath = join(def_filepath, userId.toString(), file.toString())
    console.log(filepath)

    if (!existsSync(filepath)) 
        throw createError({ status: 404, message: "Not found"})
    
    setHeader(event, 'Content-Disposition', `attachment; filename="${file}"`)

    const file_stream = createReadStream(filepath)

    file_stream.on("close", () =>  unlink(filepath, (err) => { if (err) console.warn(err.message) }))

    return file_stream;
})