<?php

namespace BitGoblin\Colossus\Controllers;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Slim\Routing\RouteContext;
use Slim\Views\Twig;
use BitGoblin\Colossus\Models\Benchmark;
use BitGoblin\Colossus\Models\Component;
use BitGoblin\Colossus\Models\Test;

class TestController extends Controller {

  public function getList(Request $request, Response $response): Response {
    $tests = Test::orderByDesc('updated_at')->get();

    $view = Twig::fromRequest($request);
    return $view->render($response, 'test/list.twig', [
      'tests' => $tests,
    ]);
  }

  public function getView(Request $request, Response $response, array $args): Response {
    $test = Test::where('id', $args['test_id'])->first();

    $view = Twig::fromRequest($request);
    return $view->render($response, 'test/view.twig', [
      'test' => $test,
    ]);
  }

  public function getAdd(Request $request, Response $response): Response {
    $benchmarks = Benchmark::all();
    $components = Component::all();

    $view = Twig::fromRequest($request);
    return $view->render($response, 'test/add.twig', [
      'benchmarks' => $benchmarks,
      'components' => $components,
    ]);
  }

  public function postAdd(Request $request, Response $response): Response {
    $params = (array)$request->getParsedBody();

    $test = new Test;
    $test->title = $params['test_title'];
    $test->description = $params['test_description'];
    $test->component_id = $params['test_component'];

    $test->save();

    // attach benchmarks to test
    foreach ($params['test_benchmarks'] as $b) {
      $test->benchmarks()->attach($b);
    }

    // redirect the user back to the home page
    $routeContext = RouteContext::fromRequest($request);
    $routeParser = $routeContext->getRouteParser();
    return $response
      ->withHeader('Location', $routeParser->urlFor('test.list'))
      ->withStatus(302);
  }

  public function getEdit(Request $request, Response $response, array $args): Response {
    $test = Test::where('id', $args['test_id'])->first();
    $benchmarks = Benchmark::all();
    $components = Component::all();

    $view = Twig::fromRequest($request);
    return $view->render($response, 'test/edit.twig', [
      'test'       => $test,
      'benchmarks' => $benchmarks,
      'components' => $components,
    ]);
  }

  public function postEdit(Request $request, Response $response, array $args): Response {
    $params = (array)$request->getParsedBody();

    $test = Test::where('id', $args['test_id'])->first();
    $test->title = $params['test_title'];
    $test->description = $params['test_description'];
    $test->component_id = $params['test_component'];

    $test->save();

    // attach benchmarks to test that aren't already attached
    foreach ($params['test_benchmarks'] as $b) {
      if (!$test->isBenchmarkSelected($b)) {
        $test->benchmarks()->attach($b);
      }
    }

    // remove benchmarks are not in the list
    foreach ($test->benchmarks as $b) {
      if (!in_array($b->id, $params['test_benchmarks'])) {
        $test->benchmarks()->detach($b);
      }
    }

    // redirect the user back to the home page
    $routeContext = RouteContext::fromRequest($request);
    $routeParser = $routeContext->getRouteParser();
    return $response
      ->withHeader('Location', $routeParser->urlFor('test.view', [ 'test_id' => $test->id ]))
      ->withStatus(302);
  }

  public function getResults(Request $request, Response $response, array $args): Response {
    $test = Test::where('id', $args['test_id'])->first();

    $view = Twig::fromRequest($request);
    return $view->render($response, 'test/results.twig', [
      'test' => $test,
    ]);
  }

}