env.ts

function requireEnv(name: string): string {
    const value = import.meta.env[name]
    if (!value) {
        throw new Error(`Missing required environment variable: ${name}`)
    }
    return value
}

export const FILEHOST_URL = requireEnv('VITE_FILEHOST_URL')
export const PKG_URL = '/pkg'
export const MAX_UPLOAD_SIZE = Number(requireEnv('VITE_MAX_UPLOAD_SIZE'))
export const ROLLING_LIMIT = Number(requireEnv('VITE_ROLLING_LIMIT'))
export const APP_NAME = requireEnv('VITE_APP_NAME')
export const APP_VERSION = requireEnv('VITE_APP_VERSION')

const chunkSizeRaw = import.meta.env.VITE_CHUNK_SIZE as string | undefined
export const CHUNK_SIZE: number | undefined = chunkSizeRaw
    ? Number(chunkSizeRaw)
    : undefined

/** Runtime config injected by config.js (Terraform ConfigMap in deployed environments). */
function runtimeConfig(): Record<string, unknown> {
    return (
        (globalThis as { APP_CONFIG?: Record<string, unknown> }).APP_CONFIG ??
        {}
    )
}

export const FF_BUSINESS = runtimeConfig().FF_BUSINESS === true
export const BUSINESS_URL =
    (runtimeConfig().BUSINESS_URL as string) ?? 'https://business.postguard.eu'
export const SITE_URL: string =
    (runtimeConfig().SITE_URL as string) ?? 'https://postguard.eu'

/** True on staging/dev where cryptify runs with `staging_mode = true` and
 *  does not actually send notification emails. The website uses this to
 *  render an in-page preview of the email a recipient would have received,
 *  so developers can grab the download link without trawling the cryptify
 *  logs. */
export const STAGING = runtimeConfig().STAGING === true

/** GlitchTip / Sentry-compatible DSN. Empty disables error reporting. */
export const GLITCHTIP_DSN: string =
    (runtimeConfig().GLITCHTIP_DSN as string) ?? ''