import { downloadFile } from "../../../actions/azurestorage";

import nextConnect from "next-connect";
import { hashAPIPath } from "../../../actions";
import middleware from "../middleware/middleware";

const WORDKEY = process.env.HASHKEY;

const ApiProxy = nextConnect();

ApiProxy.use(middleware);

ApiProxy.get(async (req, res) => {
    var containerName = req.query.container;
    var casefolderID = req.query.casefolderID;
    var blobName = req.query.blobname;
    var checkHash = req.query.hash;

    var checkquerypath =
        "/api/file/downloadblob?container=" +
        containerName +
        "&casefolderID=" +
        casefolderID +
        "&blobname=" +
        blobName.trim();

    if (hashAPIPath(checkquerypath) == "&hash=" + checkHash) {
        const downloaded = await downloadFile(
            containerName,
            casefolderID + "/files/" + decodeURI(blobName)
        );

        res.setHeader(
            "content-disposition",
            "attachment; filename=" + decodeURI(blobName)
        );
        return res.status(200).send(downloaded);
    } else {
        return res.status(400).json();
    }
});

async function streamToBuffer(readableStream) {
    return new Promise((resolve, reject) => {
        const chunks = [];
        readableStream.on("data", (data) => {
            chunks.push(data instanceof Buffer ? data : Buffer.from(data));
        });
        readableStream.on("end", () => {
            resolve(Buffer.concat(chunks));
        });
        readableStream.on("error", reject);
    });
}

export const config = {
    api: {
        bodyParser: false,
    },
};

export default ApiProxy;