import { z } from "zod";

export const envSchema = z.object({
  NODE_ENV: z.enum(["development", "production", "test"]).default("development"),
  PORT: z.coerce.number().default(4000),

  DATABASE_URL: z.string().url(),

  REDIS_HOST: z.string().default("127.0.0.1"),
  REDIS_PORT: z.coerce.number().default(6379),
  REDIS_PASSWORD: z.string(),

  BETTER_AUTH_SECRET: z.string().min(32),
  BETTER_AUTH_URL: z.string().url(),

  GOOGLE_CLIENT_ID: z.string().optional(),
  GOOGLE_CLIENT_SECRET: z.string().optional(),

  MINIO_ENDPOINT: z.string(),
  MINIO_ACCESS_KEY: z.string(),
  MINIO_SECRET_KEY: z.string(),
  MINIO_BUCKET_NAME: z.string().default("sase-schemas"),
  MINIO_PUBLIC_URL: z.string(),
  MINIO_USE_SSL: z
    .string()
    .transform((v) => v === "true")
    .default("false"),

  CORS_ORIGIN: z.string().default("http://localhost:3000"),

  IYZICO_API_KEY: z.string().optional(),
  IYZICO_SECRET_KEY: z.string().optional(),
  IYZICO_BASE_URL: z.string().optional(),

  PL24_BASE_URL: z.string().optional(),
  PL24_COMPANY_CODE: z.string().optional(),
  PL24_USERNAME: z.string().optional(),
  PL24_PASSWORD: z.string().optional(),

  EMEX_USERNAME: z.string().optional(),
  EMEX_PASSWORD: z.string().optional(),

  // Parts-Catalogs (Playwright JWT capture + DataImpulse proxy)
  PCAT_USE_PROXY: z.string().default("true"),
  PCAT_PROXY_HOST: z.string().default("gw.dataimpulse.com"),
  PCAT_PROXY_USER: z.string().optional(),
  PCAT_PROXY_PASS: z.string().optional(),

  ML_PREDICTION_ENABLED: z
    .string()
    .transform((v) => v === "true")
    .default("false"),

  // Postal Email
  POSTAL_API_URL: z.string().url().optional(),
  POSTAL_API_KEY: z.string().optional(),
  POSTAL_FROM_ADDRESS: z.string().email().default("noreply@sase.tr"),
  POSTAL_FROM_NAME: z.string().default("Sase.tr"),

  // OpenTelemetry
  OTEL_ENABLED: z
    .string()
    .transform((v) => v === "true")
    .default("false"),
  OTEL_EXPORTER_OTLP_ENDPOINT: z.string().optional(),
  OTEL_EXPORTER_OTLP_HEADERS: z.string().optional(),
  OTEL_SERVICE_NAME: z.string().default("sase-api"),
  OTEL_TRACE_SAMPLE_RATE: z.coerce.number().min(0).max(1).default(1.0),
});

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

export function validateEnv(env: Record<string, unknown> = process.env as Record<string, unknown>): Env {
  const result = envSchema.safeParse(env);
  if (!result.success) {
    const formatted = result.error.format();
    console.error("Environment validation failed:");
    console.error(JSON.stringify(formatted, null, 2));
    throw new Error("Invalid environment variables");
  }
  return result.data;
}