import { z } from "zod";

export const envSchema = z.object({
	NODE_ENV: z.enum(["development", "production", "test"]).default("development"),
	PORT: z.coerce.number().default(3000),

	// Database
	POSTGRES_HOST: z.string(),
	POSTGRES_PORT: z.coerce.number().default(5432),
	POSTGRES_DB: z.string(),
	POSTGRES_USER: z.string(),
	POSTGRES_PASSWORD: z.string(),

	// S3
	S3_ENDPOINT: z.string().default("localhost"),
	S3_PORT: z.coerce.number().default(9000),
	S3_USE_SSL: z.preprocess((val) => val === "true", z.boolean()).default(false),
	S3_ACCESS_KEY: z.string().default("minioadmin"),
	S3_SECRET_KEY: z.string().default("minioadmin"),
	S3_BUCKET_NAME: z.string().default("memegoat"),

	// Security
	JWT_SECRET: z.string().min(32),
	ENCRYPTION_KEY: z.string().length(32),
	PGP_ENCRYPTION_KEY: z.string().min(16),

	// Mail
	MAIL_HOST: z.string(),
	MAIL_PORT: z.coerce.number(),
	MAIL_SECURE: z.preprocess((val) => val === "true", z.boolean()).default(false),
	MAIL_USER: z.string(),
	MAIL_PASS: z.string(),
	MAIL_FROM: z.string().email(),

	DOMAIN_NAME: z.string(),
	API_URL: z.string().url().optional(),

	// Sentry
	SENTRY_DSN: z.string().optional(),

	// Redis
	REDIS_HOST: z.string().default("localhost"),
	REDIS_PORT: z.coerce.number().default(6379),

	// Session
	SESSION_PASSWORD: z.string().min(32),

	// Media Limits
	MAX_IMAGE_SIZE_KB: z.coerce.number().default(512),
	MAX_GIF_SIZE_KB: z.coerce.number().default(1024),
	MAX_VIDEO_SIZE_KB: z.coerce.number().default(10240),
});

export type Env = z.infer<typeof envSchema>;

export function validateEnv(config: Record<string, unknown>) {
	const result = envSchema.safeParse(config);

	if (!result.success) {
		console.error("❌ Invalid environment variables:", result.error.format());
		throw new Error("Invalid environment variables");
	}

	return result.data;
}