import fs from "node:fs";
import { z } from "zod";

import { loggers } from "@/utils/logging";
const logger = loggers.config;

const discordSchema = z.object({
	token: z.string(),
	app_id: z.string(),
});

const Project = z.object({
	universe: z.string(),
	name: z.string(),
	displayName: z.string(),
	iconURL: z.string().optional(),
	codes: z
		.array(
			z.object({
				code: z.string(),
				expired: z.boolean().optional(),
				expiredAt: z.string().optional(),
				addedAt: z.string().optional(),
			}),
		)
		.optional(),
});

const projectSchema = z.record(z.string(), Project);

const s3Schema = z.object({
	accessKeyId: z.string(),
	secretAccessKey: z.string(),
	bucket: z.string(),
	endpoint: z.string().optional(),
	region: z.string().default("us-east-1"),
	publicUrl: z.string().optional(),
});

const schema = z.object({
	discord: discordSchema,
	s3: s3Schema,
	projects: projectSchema,
	trelloBoardId: z.string().optional(),
	developerId: z.string(),
	terminology: z.string().default("project"),
});

function validateConfig() {
	const env = process.env.NODE_ENV || "DEV";

	const runtimeConfig = JSON.parse(
		fs.readFileSync(`.config.${env}.json`, "utf8"),
	);
	const conf = schema.safeParse(runtimeConfig);
	if (conf.success) return conf.data;

	logger.error("invalid environment variables");
	for (const err of conf.error.issues)
		logger.error(`  ${err.message}: ${err.path}`);
	process.exit(1);
}

export default validateConfig();

export type Project = z.infer<typeof Project>;