<?php

namespace Tests\Unit\Schedule\Actions;

use App\Models\Dish;
use App\Models\Schedule;
use App\Models\ScheduledUserDish;
use App\Models\User;
use Carbon\Carbon;
use DishPlanner\Schedule\Actions\RegenerateScheduleForDateForUsersAction;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;
use Tests\Traits\HasPlanner;

class RegenerateScheduleForDateForUsersActionTest extends TestCase
{
    use HasPlanner;
    use RefreshDatabase;

    private RegenerateScheduleForDateForUsersAction $action;

    protected function setUp(): void
    {
        parent::setUp();
        $this->setUpHasPlanner();
        $this->action = new RegenerateScheduleForDateForUsersAction();
    }

    public function test_regenerates_schedule_for_single_date(): void
    {
        $planner = $this->planner;
        $user = User::factory()->planner($planner)->create();
        $dish = Dish::factory()->planner($planner)->create();
        $dish->users()->attach($user);

        $date = Carbon::parse('2026-01-15');

        $this->action->execute($planner, $date, [$user->id]);

        $this->assertDatabaseCount(Schedule::class, 1);
        $this->assertDatabaseCount(ScheduledUserDish::class, 1);
        $this->assertDatabaseHas(Schedule::class, [
            'planner_id' => $planner->id,
            'date' => '2026-01-15',
        ]);
    }

    public function test_deletes_and_recreates_existing_schedule(): void
    {
        $planner = $this->planner;
        $user = User::factory()->planner($planner)->create();
        $dish1 = Dish::factory()->planner($planner)->create();
        $dish2 = Dish::factory()->planner($planner)->create();
        $dish1->users()->attach($user);
        $dish2->users()->attach($user);

        $date = Carbon::parse('2026-02-10');

        $schedule = Schedule::create([
            'planner_id' => $planner->id,
            'date' => $date->format('Y-m-d'),
            'is_skipped' => false,
        ]);

        $originalUserDish = $user->userDishes->first();
        ScheduledUserDish::create([
            'schedule_id' => $schedule->id,
            'user_id' => $user->id,
            'user_dish_id' => $originalUserDish->id,
            'is_skipped' => false,
        ]);

        $this->action->execute($planner, $date, [$user->id]);

        $this->assertDatabaseCount(ScheduledUserDish::class, 1);
    }

    public function test_regenerates_for_multiple_users(): void
    {
        $planner = $this->planner;
        $users = User::factory()->planner($planner)->count(3)->create();
        $dish = Dish::factory()->planner($planner)->create();
        $dish->users()->attach($users);

        $date = Carbon::parse('2026-03-20');

        $this->action->execute($planner, $date, $users->pluck('id')->toArray());

        $this->assertDatabaseCount(ScheduledUserDish::class, 3);
    }

    public function test_creates_schedule_if_not_exists(): void
    {
        $planner = $this->planner;
        $user = User::factory()->planner($planner)->create();
        $dish = Dish::factory()->planner($planner)->create();
        $dish->users()->attach($user);

        $date = Carbon::parse('2026-04-25');

        $this->assertDatabaseCount(Schedule::class, 0);

        $this->action->execute($planner, $date, [$user->id]);

        $this->assertDatabaseCount(Schedule::class, 1);
        $this->assertDatabaseHas(Schedule::class, [
            'planner_id' => $planner->id,
            'date' => '2026-04-25',
        ]);
    }

    public function test_skips_users_without_dishes(): void
    {
        $planner = $this->planner;
        $userWithDish = User::factory()->planner($planner)->create();
        $userWithoutDish = User::factory()->planner($planner)->create();
        $dish = Dish::factory()->planner($planner)->create();
        $dish->users()->attach($userWithDish);

        $date = Carbon::parse('2026-05-05');

        $this->action->execute($planner, $date, [$userWithDish->id, $userWithoutDish->id]);

        $this->assertDatabaseCount(ScheduledUserDish::class, 1);
        $this->assertDatabaseMissing(ScheduledUserDish::class, ['user_id' => $userWithoutDish->id]);
    }
}