import {
    downloadAllProgressFiles,
    getAllProgressBlobs
} from "../../../actions/azurestorage";
import nextConnect from "next-connect";
import middleware from "../middleware/middleware";
import { hashAPIPath } from "../../../actions/core/hash";
import { respondError, respondSuccess } from "../middleware/apiResponse";

const ApiProxy = nextConnect();
ApiProxy.use(middleware);

ApiProxy.get(async (req, res) => {
    const containerName = req.query.container;
    const checkHash = req.query.hash;

    if (
        typeof containerName === "undefined" ||
        containerName.length === 0 ||
        typeof checkHash === "undefined" ||
        checkHash.length === 0
    ) {
        return respondError(res, {
            status: 400,
            code: "MISSING_REQUIRED_QUERY",
            message: "container and hash are required"
        });
    }

    const hashCandidatePaths = [
        "/api/file/getawaitingsubmissionfromblob?container=" + containerName,
        "/api/file/getawaitingsubmissionfromblob?container=" +
            encodeURIComponent(containerName)
    ];

    const isHashValid = hashCandidatePaths.some(
        (candidatePath) => hashAPIPath(candidatePath) == "&hash=" + checkHash
    );

    if (!isHashValid) {
        return respondError(res, {
            status: 400,
            code: "INVALID_HASH",
            message: "Invalid hash"
        });
    }

    try {
        const progressBlobs = await getAllProgressBlobs(containerName);
        const data = await downloadAllProgressFiles(
            containerName,
            progressBlobs
        );
        return respondSuccess(res, data);
    } catch (error) {
        return respondError(res, {
            status: 400,
            code: "GET_AWAITING_SUBMISSION_BLOB_FAILED",
            message: "Failed to retrieve awaiting submission blobs"
        });
    }
});

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

export default ApiProxy;