import 'dotenv/config'

/** Einzige erlaubte Datenbank (Ticketsystem). Keine separate Portal-DB mehr. */
export const WOMS_DATABASE_ID = 'woms-database'

const DEPRECATED_DATABASE_IDS = new Set([
  '6943bf0e0003291f8c35', // frühere Portal-/Legacy-DB
])

function resolveDatabaseId() {
  const fromEnv = (process.env.APPWRITE_DATABASE_ID || '').trim()
  if (!fromEnv || fromEnv === WOMS_DATABASE_ID) return WOMS_DATABASE_ID
  if (DEPRECATED_DATABASE_IDS.has(fromEnv)) {
    console.warn(
      `[config] Veraltete APPWRITE_DATABASE_ID "${fromEnv}" – es wird nur ${WOMS_DATABASE_ID} verwendet.`
    )
    return WOMS_DATABASE_ID
  }
  console.warn(
    `[config] APPWRITE_DATABASE_ID="${fromEnv}" ignoriert – Portal nutzt ausschließlich ${WOMS_DATABASE_ID}.`
  )
  return WOMS_DATABASE_ID
}

export const config = {
  port: Number(process.env.PORT) || 3000,
  sessionSecret: process.env.SESSION_SECRET || '',
  cookieName: process.env.SESSION_COOKIE_NAME || 'webklar_portal_session',
  allowedCustomerStatuses: (process.env.ALLOWED_CUSTOMER_STATUSES || 'active')
    .split(',')
    .map((s) => s.trim())
    .filter(Boolean),

  appwrite: {
    endpoint: process.env.APPWRITE_ENDPOINT || 'https://ticket.webklar.com/v1',
    projectId: process.env.APPWRITE_PROJECT_ID || '6a1058610003c5a13a05',
    databaseId: resolveDatabaseId(),
    apiKey: process.env.APPWRITE_API_KEY || '',
  },

  collections: {
    customers: process.env.APPWRITE_COLLECTION_CUSTOMERS || 'customers',
    customerPortalAccess: process.env.APPWRITE_COLLECTION_CUSTOMER_PORTAL_ACCESS || 'customerPortalAccess',
    websiteProjects: process.env.APPWRITE_COLLECTION_WEBSITE_PROJECTS || 'websiteProjects',
    portalFeatures: process.env.APPWRITE_COLLECTION_PORTAL_FEATURES || 'portalFeatures',
  },

  gitea: {
    webhookToken: process.env.GITEA_WEBHOOK_TOKEN || '',
    baseUrl: process.env.GITEA_BASE_URL || 'https://git.webklar.com',
    apiToken: process.env.GITEA_API_TOKEN || '',
  },

  preview: {
    baseHost: process.env.PREVIEW_BASE_HOST || 'project.webklar.com',
    deployRoot: process.env.PREVIEW_DEPLOY_ROOT || '',
  },
}

export function assertServerConfig() {
  if (!config.sessionSecret || config.sessionSecret.length < 32) {
    console.warn('[config] SESSION_SECRET fehlt oder ist zu kurz (min. 32 Zeichen).')
  }
  if (!config.appwrite.apiKey) {
    console.warn('[config] APPWRITE_API_KEY fehlt – DB-Zugriff und Webhook schlagen fehl.')
  }
}