import path from "node:path";
import { fileURLToPath } from "node:url";
import { config as loadEnv } from "dotenv";
import { z } from "zod";

// Load .env from the repo root when running outside Docker (no-op in containers).
const __dirname = path.dirname(fileURLToPath(import.meta.url));
loadEnv({ path: path.resolve(__dirname, "../../../.env") });
loadEnv();

const bool = (def: boolean) =>
  z
    .string()
    .optional()
    .transform((v) => (v === undefined ? def : v === "true" || v === "1"));

const schema = z.object({
  NODE_ENV: z.enum(["development", "production", "test"]).default("development"),
  PORT: z.coerce.number().default(3000),
  APP_URL: z.string().default("http://localhost:3000"),
  CORS_ORIGINS: z.string().optional().default(""),

  SESSION_SECRET: z.string().min(16).default("dev-secret-change-me-please-32chars-min"),
  SESSION_TTL_DAYS: z.coerce.number().default(30),

  DATABASE_URL: z.string().default("postgres://adc:adc@localhost:5432/adc"),
  REDIS_URL: z.string().default("redis://localhost:6379"),

  MINIO_ENDPOINT: z.string().default("localhost"),
  MINIO_PORT: z.coerce.number().default(9000),
  MINIO_SSL: bool(false),
  MINIO_ACCESS_KEY: z.string().default("minioadmin"),
  MINIO_SECRET_KEY: z.string().default("minioadmin"),
  MINIO_BUCKET: z.string().default("adc-retivo"),
  MINIO_PUBLIC_URL: z.string().optional().default(""),

  MB_USER_AGENT: z
    .string()
    .default("ADCRetivo/1.0 ( https://example.com contact:admin@example.com )"),
  ACOUSTID_API_KEY: z.string().optional().default(""),
  FPCALC_PATH: z.string().default("fpcalc"),

  ADMIN_EMAIL: z.string().default("admin@adc.retivo"),
  ADMIN_USERNAME: z.string().default("admin"),
  ADMIN_PASSWORD: z.string().default("admin123"),

  SERVE_WEB_DIST: z.string().optional().default(""),
});

export const env = schema.parse(process.env);

export const isProd = env.NODE_ENV === "production";

export const corsOrigins = env.CORS_ORIGINS.split(",")
  .map((s) => s.trim())
  .filter(Boolean);