import { config } from "dotenv";

import { writeFile } from "fs/promises";

const main = async () => {
    const keyEnv = config({ path: ".env.key" });
    const DOTENV_KEY = keyEnv.parsed?.DOTENV_KEY || process.env.DOTENV_KEY; // If DOTENV_KEY not found in .env.key, get it from process.env

    if (!DOTENV_KEY) {
        throw new Error("No DOTENV_KEY found in .env.key or process.env");
    }

    const envs = config({ DOTENV_KEY }); // If DOTENV_KEY found, get the .env.vault, load it to get shared env variables

    if (!envs.parsed || Object.keys(envs.parsed).length === 0) {
        throw new Error("No .env.vault found or it is empty");
    }

    try {
        await writeFile(
            ".env",
            // eslint-disable-next-line prefer-template
            "# This file is generated by /scripts/load-env.ts\n" +
                "# DO NOT ATTEMPT TO EDIT THIS FILE\n" +
                Object.entries(envs.parsed)
                    .map(([key, value]) => `${key}=${value}`)
                    .join("\n")
        );

        console.log("Successfully loaded .env.vault to .env");
    } catch (error) {
        console.error("Failed to load .env.vault to .env", error);
    }
};

main();