import { z } from "zod";

const envSchema = z.object({
  DATABASE_URL: z.string().url(),
  APP_URL: z.string().url().default("http://localhost:3000"),
  APP_ENV: z.enum(["development", "test", "production"]).default("development"),
  SESSION_SECRET: z.string().min(32),
  CRON_SECRET: z.string().min(32),
  SMTP_HOST: z.string().optional(),
  SMTP_PORT: z.coerce.number().default(587),
  SMTP_SECURE: z.coerce.boolean().default(false),
  SMTP_USERNAME: z.string().optional(),
  SMTP_PASSWORD: z.string().optional(),
  SMTP_FROM_EMAIL: z.string().email().optional(),
  SMTP_FROM_NAME: z.string().default("PMAP Annual Conference"),
  UPLOAD_ROOT: z.string().default("./uploads")
});

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

export function readEnv(source: NodeJS.ProcessEnv = process.env): AppEnv {
  return envSchema.parse(source);
}

export function safeReadEnv(source: NodeJS.ProcessEnv = process.env) {
  return envSchema.safeParse(source);
}