<?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\ClearScheduleForMonthAction;
use DishPlanner\Schedule\Actions\GenerateScheduleForMonthAction;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;
use Tests\Traits\HasPlanner;

class ClearScheduleForMonthActionTest extends TestCase
{
    use HasPlanner;
    use RefreshDatabase;

    private ClearScheduleForMonthAction $action;

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

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

        $month = 1;
        $year = 2026;
        $daysInMonth = Carbon::createFromDate($year, $month, 1)->daysInMonth;

        (new GenerateScheduleForMonthAction())->execute($planner, $month, $year, [$user->id]);

        $this->assertEquals($daysInMonth, ScheduledUserDish::where('user_id', $user->id)->count());

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

        $this->assertEquals(0, ScheduledUserDish::where('user_id', $user->id)->count());
        $this->assertDatabaseCount(Schedule::class, $daysInMonth);
    }

    public function test_only_clears_specified_users(): void
    {
        $planner = $this->planner;
        $user1 = User::factory()->planner($planner)->create();
        $user2 = User::factory()->planner($planner)->create();
        $dish = Dish::factory()->planner($planner)->create();
        $dish->users()->attach([$user1->id, $user2->id]);

        $month = 2;
        $year = 2026;
        $daysInMonth = Carbon::createFromDate($year, $month, 1)->daysInMonth;

        (new GenerateScheduleForMonthAction())->execute($planner, $month, $year, [$user1->id, $user2->id]);
        $this->assertEquals($daysInMonth * 2, ScheduledUserDish::whereIn('user_id', [$user1->id, $user2->id])->count());

        $this->action->execute($planner, $month, $year, [$user1->id]);

        $this->assertEquals($daysInMonth, ScheduledUserDish::whereIn('user_id', [$user1->id, $user2->id])->count());
        $this->assertEquals(0, ScheduledUserDish::where('user_id', $user1->id)->count());
    }

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

        $year = 2026;
        $janDays = Carbon::createFromDate($year, 1, 1)->daysInMonth;
        $febDays = Carbon::createFromDate($year, 2, 1)->daysInMonth;

        (new GenerateScheduleForMonthAction())->execute($planner, 1, $year, [$user->id]);
        (new GenerateScheduleForMonthAction())->execute($planner, 2, $year, [$user->id]);

        $this->assertEquals($janDays + $febDays, ScheduledUserDish::where('user_id', $user->id)->count());

        $this->action->execute($planner, 1, $year, [$user->id]);

        $this->assertEquals($febDays, ScheduledUserDish::where('user_id', $user->id)->count());
    }
}