import { z } from 'zod'
import dotenv from 'dotenv'
import { logger } from './server/utils/logger'

try {
  dotenv.config()
} catch (err) {
  console.error('Failed loading .env', err)
}

const schema = z.object({
  // required for basic app functionality
  APP_URL: z.string(), // ex: http://localhost:3000
  DATABASE_URL: z.string(), // ex: postgresql://username:password@host:port/dbname
  SECRET: z.string(),
  WSS_API_SECRET: z.string(),
  AUTH_COOKIE_SECRET: z.string(),

  GIT_COMMIT: z.string().optional(),
  PORT: z.string().optional().default('3000'),

  // emails
  POSTMARK_API_KEY: z.string().optional(),
  EMAIL_FROM: z.string().optional().default('Interval <help@interval.com>'),

  // authentication
  WORKOS_API_KEY: z.string().optional(),
  WORKOS_CLIENT_ID: z.string().optional(),
  WORKOS_WEBHOOK_SECRET: z.string().optional(),

  // notifications
  SLACK_CLIENT_ID: z.string().optional(),
  SLACK_CLIENT_SECRET: z.string().optional(),

  // file uploads
  S3_KEY_ID: z.string().optional(),
  S3_KEY_SECRET: z.string().optional(),
  S3_BUCKET: z.string().optional(),
  S3_REGION: z.string().optional(),
  S3_ENDPOINT: z.string().optional(),
})

const possiblyValid = schema.safeParse(process.env)
if (!possiblyValid.success) {
  const missing = possiblyValid.error.issues.map(i => i.path).flat()
  logger.error(
    `Missing required environment variables: \n - ${missing.join('\n - ')}`
  )
  process.exit(1)
}

const validated = possiblyValid.data

export default validated

declare global {
  // eslint-disable-next-line
  namespace NodeJS {
    // eslint-disable-next-line
    interface ProcessEnv extends z.infer<typeof schema> {}
  }
}