import { YAML } from "../dependencies.ts";
import { matches } from "../dependencies.ts";
import { ExpectedExports } from "../types.ts";
import { ConfigSpec } from "../types.ts";

const { any, string, dictionary } = matches;

const matchConfig = dictionary([string, any]);

export const getConfig = (spec: ConfigSpec): ExpectedExports.getConfig => async (effects) => {
    const config = await effects
        .readFile({
            path: "start9/config.yaml",
            volumeId: "main",
        })
        .then((x) => YAML.parse(x))
        .then((x) => matchConfig.unsafeCast(x))
        .catch((e) => {
            effects.info(`Got error ${e} while trying to read the config`);
            return undefined;
        });
    return {
        result: {
            config,
            spec,
        },
    };
};