<?php

namespace Tests\Feature;

use App\Models\Program;
use App\Models\User;
use App\Models\Workout;
use App\Models\WorkoutSession;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class ProgramTest extends TestCase
{
    use RefreshDatabase;

    public function test_guest_is_redirected_to_login(): void
    {
        $response = $this->get(route('programs.index'));

        $response->assertRedirect(route('login'));
    }

    public function test_user_can_create_a_program(): void
    {
        $user = User::factory()->create();

        $response = $this->actingAs($user)->post(route('programs.store'), [
            'title' => 'Push Pull Legs',
            'weeks' => 6,
        ]);

        $this->assertDatabaseHas('programs', ['user_id' => $user->id, 'title' => 'Push Pull Legs', 'weeks' => 6]);
        $program = Program::where('title', 'Push Pull Legs')->firstOrFail();
        $response->assertRedirect(route('programs.show', $program));
    }

    public function test_owner_can_view_their_program(): void
    {
        $user = User::factory()->create();
        $program = Program::factory()->create(['user_id' => $user->id]);

        $response = $this->actingAs($user)->get(route('programs.show', $program));

        $response->assertOk();
        $response->assertSee($program->title);
    }

    public function test_other_user_cannot_view_program(): void
    {
        $owner = User::factory()->create();
        $other = User::factory()->create();
        $program = Program::factory()->create(['user_id' => $owner->id]);

        $response = $this->actingAs($other)->get(route('programs.show', $program));

        $response->assertForbidden();
    }

    public function test_owner_can_add_a_workout_to_a_program_week(): void
    {
        $user = User::factory()->create();
        $program = Program::factory()->create(['user_id' => $user->id, 'weeks' => 4]);

        $response = $this->actingAs($user)->post(route('programs.workouts.add', $program), [
            'title' => 'Push Day',
            'week_number' => 2,
            'day_number' => 1,
        ]);

        $response->assertRedirect();
        $this->assertDatabaseHas('workouts', [
            'program_id' => $program->id,
            'user_id' => $user->id,
            'title' => 'Push Day',
            'week_number' => 2,
            'day_number' => 1,
        ]);
    }

    public function test_week_number_beyond_program_length_is_rejected(): void
    {
        $user = User::factory()->create();
        $program = Program::factory()->create(['user_id' => $user->id, 'weeks' => 4]);

        $response = $this->actingAs($user)->post(route('programs.workouts.add', $program), [
            'title' => 'Push Day',
            'week_number' => 5,
            'day_number' => 1,
        ]);

        $response->assertSessionHasErrors('week_number');
    }

    public function test_other_user_cannot_add_a_workout_to_someone_elses_program(): void
    {
        $owner = User::factory()->create();
        $other = User::factory()->create();
        $program = Program::factory()->create(['user_id' => $owner->id]);

        $response = $this->actingAs($other)->post(route('programs.workouts.add', $program), [
            'title' => 'Push Day',
            'week_number' => 1,
            'day_number' => 1,
        ]);

        $response->assertForbidden();
    }

    public function test_show_reports_progress_from_completed_sessions(): void
    {
        $user = User::factory()->create();
        $program = Program::factory()->create(['user_id' => $user->id, 'weeks' => 2]);
        $workout1 = Workout::factory()->create(['user_id' => $user->id, 'program_id' => $program->id, 'week_number' => 1, 'day_number' => 1]);
        $workout2 = Workout::factory()->create(['user_id' => $user->id, 'program_id' => $program->id, 'week_number' => 1, 'day_number' => 2]);

        WorkoutSession::factory()->create([
            'user_id' => $user->id,
            'workout_id' => $workout1->id,
            'completed_at' => now(),
        ]);

        $response = $this->actingAs($user)->get(route('programs.show', $program));

        $response->assertOk();
        $response->assertSee('1 / 2 workouts', false);
    }

    public function test_owner_can_delete_a_program_without_deleting_its_workouts(): void
    {
        $user = User::factory()->create();
        $program = Program::factory()->create(['user_id' => $user->id]);
        $workout = Workout::factory()->create(['user_id' => $user->id, 'program_id' => $program->id, 'week_number' => 1, 'day_number' => 1]);

        $response = $this->actingAs($user)->delete(route('programs.destroy', $program));

        $response->assertRedirect(route('programs.index'));
        $this->assertDatabaseMissing('programs', ['id' => $program->id]);
        $this->assertDatabaseHas('workouts', ['id' => $workout->id]);
    }
}