import dotenv from 'dotenv'
dotenv.config({
    path: '../../.env'
})
import { S3Client } from "@aws-sdk/client-s3"
import { Upload } from "@aws-sdk/lib-storage"
// import { getSignedUrl } from "@aws-sdk/s3-request-presigner"
import { createId } from '@paralleldrive/cuid2'
import { basename } from 'node:path'
import fs from 'node:fs'

if (!process.env.S3_BUCKET_NAME) throw new Error('S3_BUCKET_NAME was undefined in env');
if (!process.env.SCOUT_NITTER_URL) throw new Error('SCOUT_NITTER_URL was undefined in env');
if (!process.env.S3_BUCKET_KEY_ID) throw new Error('S3_BUCKET_KEY_ID was undefined in env');
if (!process.env.S3_BUCKET_APPLICATION_KEY) throw new Error('S3_BUCKET_APPLICATION_KEY was undefined in env');



export async function uploadFile(filePath) {
    if (!filePath) throw new Error("first argument, 'filePath' is undefined");
    const client = new S3Client({
        endpoint: 'https://s3.us-west-000.backblazeb2.com',
        region:'us-west-000',
        credentials:{
            accessKeyId: process.env.S3_BUCKET_KEY_ID,
            secretAccessKey: process.env.S3_BUCKET_APPLICATION_KEY
        }
    });
    const target = {
        Bucket: process.env.S3_BUCKET_NAME,
        Key: `${createId()}-${basename(filePath)}`,
        Body: fs.createReadStream(filePath)
    }

    // greets https://stackoverflow.com/a/70159394/1004931
    try {
        const parallelUploads3 = new Upload({
            client: client,
            //tags: [...], // optional tags
            queueSize: 4, // optional concurrency configuration
            leavePartsOnError: false, // optional manually handle dropped parts
            params: target,
        });

        // parallelUploads3.on("httpUploadProgress", (progress) => {
        //     console.log(progress);
        // });

        const res = await parallelUploads3.done();
        return res

    } catch (e) {
        console.error(`while uploading a file to s3, we encountered an error`)
        throw new Error(e);
    }

}