<?php

namespace Tests\Feature;

use App\Models\BodyPart;
use App\Models\Exercise;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class ExerciseTest extends TestCase
{
    use RefreshDatabase;

    public function test_index_lists_exercises(): void
    {
        Exercise::factory()->count(3)->create();

        $response = $this->get(route('exercises.index'));

        $response->assertOk();
        $response->assertViewHas('exercises', function ($exercises) {
            return $exercises->total() === 3;
        });
    }

    public function test_index_can_filter_by_search_query(): void
    {
        Exercise::factory()->create(['name' => 'Barbell Bench Press']);
        Exercise::factory()->create(['name' => 'Dumbbell Curl']);

        $response = $this->get(route('exercises.index', ['q' => 'Bench']));

        $response->assertOk();
        $response->assertViewHas('exercises', function ($exercises) {
            return $exercises->total() === 1
                && $exercises->first()->name === 'Barbell Bench Press';
        });
    }

    public function test_index_can_filter_by_body_part(): void
    {
        $chest = BodyPart::create(['name' => 'Chest', 'slug' => 'chest']);
        $back = BodyPart::create(['name' => 'Back', 'slug' => 'back']);

        $chestExercise = Exercise::factory()->create();
        $chestExercise->bodyParts()->attach($chest->id);

        $backExercise = Exercise::factory()->create();
        $backExercise->bodyParts()->attach($back->id);

        $response = $this->get(route('exercises.index', ['bodypart' => 'chest']));

        $response->assertOk();
        $response->assertViewHas('exercises', function ($exercises) use ($chestExercise) {
            return $exercises->total() === 1
                && $exercises->first()->id === $chestExercise->id;
        });
    }

    public function test_show_displays_exercise(): void
    {
        $exercise = Exercise::factory()->create(['name' => 'Barbell Squat']);

        $response = $this->get(route('exercises.show', $exercise->slug));

        $response->assertOk();
        $response->assertSee('Barbell Squat');
    }

    public function test_show_returns_404_for_unknown_slug(): void
    {
        $response = $this->get('/exercises/does-not-exist');

        $response->assertNotFound();
    }
}