import app from '@adonisjs/core/services/app'
import { HttpContext, ExceptionHandler } from '@adonisjs/core/http'
import type { StatusPageRange, StatusPageRenderer } from '@adonisjs/core/types/http'

export default class HttpExceptionHandler extends ExceptionHandler {
  protected debug = !app.inProduction
  protected renderStatusPages = true

  protected statusPages: Record<StatusPageRange, StatusPageRenderer> = {
    '404': (error, ctx) =>
      ctx.inertia
        ? ctx.inertia.render('Errors/ServerError', { error: error.message, code: error.status })
        : ctx.response.status(error.status).send(error.message),
    '401..403': (error, ctx) => {
      if (ctx.inertia) {
        return ctx.inertia.render('Errors/ServerError', { error: error.message, code: error.status });
      }
      return ctx.response.status(error.status).send(error.message);
    },
    '500..599': (error, ctx) => {
      const isDbError =
        error.code === 'ECONNREFUSED' &&
        (error.errors?.some((e: any) => e.port === 5432) ?? error.message?.includes('5432'));

      if (isDbError && ctx.inertia) {
        return ctx.inertia.render('Errors/postgres_error', {
          status: 'error',
          message: 'PostgreSQL database connection failed.',
          details: {
            code: error.code,
            type: error.status
            // Entferne das .map() auf error.errors, da es oft undefined ist
          }
        });
      }

      if (ctx.inertia) {
        return ctx.inertia.render('Errors/ServerError', { error: error.message, code: 500 });
      }
      return ctx.response.status(500).send(error.message);
    }
  };

  public async handle(error: any, ctx: HttpContext) {
    /**
     * WICHTIG: Validierungsfehler (422) NICHT manuell abfangen!
     * AdonisJS 6 + VineJS + Inertia machen das automatisch. 
     * Wenn du es hier manuell machst, überschreibst du den Standard-Flow.
     */

    return super.handle(error, ctx)
  }
}