import fs from "fs";
import grabDirNames from "../names/grab-dir-names";
import grabConfig from "./grab-config";
import _ from "lodash";
import { SiteConfig } from "../../../types";

type Params = {
    userId?: string | number;
    newConfig?: SiteConfig;
};

type Return = {
    success?: boolean;
    msg?: string;
};

export default function updateUserConfig({
    newConfig,
    userId,
}: Params): Return {
    if (!userId || !newConfig) {
        return {
            success: false,
            msg: `UserID or newConfig not provided`,
        };
    }

    const { userConfigJSONFilePath } = grabDirNames({
        userId,
    });

    if (!userConfigJSONFilePath || !fs.existsSync(userConfigJSONFilePath)) {
        return {
            success: false,
            msg: `userConfigJSONFilePath not found!`,
        };
    }

    const { userConfig: existingUserConfig } = grabConfig({ userId });

    const updateConfig = _.merge(existingUserConfig, newConfig);

    fs.writeFileSync(
        userConfigJSONFilePath,
        JSON.stringify(updateConfig),
        "utf-8"
    );

    return { success: true };
}