import { existsSync } from 'node:fs'
import app from '@adonisjs/core/services/app'
import type { HttpContext } from '@adonisjs/core/http'

/**
 * Serves the Angular application for every URL that is neither a file
 * of "public/" nor an API route (/containers, /projects/…).
 */
export default class SpaController {
  async index({ request, response }: HttpContext) {
    if (request.url().startsWith('/api/')) {
      return response.notFound({ message: 'Route inconnue.' })
    }

    const index = app.publicPath('index.html')
    if (!existsSync(index)) {
      return response.notFound(
        'Interface non compilée : lance "npm run build" dans web/ (ou "npm start" pour le développement).'
      )
    }

    response.header('Cache-Control', 'no-cache')
    return response.download(index)
  }
}