<?php

namespace App\Livewire\Schedule;

use App\Models\User;
use Carbon\Carbon;
use DishPlanner\Schedule\Services\ScheduleCalendarService;
use DishPlanner\ScheduledUserDish\Actions\DeleteScheduledUserDishForDateAction;
use DishPlanner\ScheduledUserDish\Actions\SkipScheduledUserDishForDateAction;
use Exception;
use Illuminate\Contracts\View\View;
use Illuminate\Support\Facades\Log;
use Livewire\Component;

class ScheduleCalendar extends Component
{
    public $currentMonth;
    public $currentYear;
    public $calendarDays = [];
    public $showRegenerateModal = false;
    public $regenerateDate = null;
    public $regenerateUserId = null;

    public function mount(): void
    {
        $this->currentMonth = now()->month;
        $this->currentYear = now()->year;
        $this->loadCalendar();
    }

    protected $listeners = ['schedule-generated' => 'refreshCalendar'];

    public function render(): View
    {
        return view('livewire.schedule.schedule-calendar');
    }

    public function refreshCalendar(): void
    {
        $this->loadCalendar();
    }

    public function loadCalendar(): void
    {
        $service = new ScheduleCalendarService();
        $this->calendarDays = $service->getCalendarDays(
            auth()->user(),
            $this->currentMonth,
            $this->currentYear
        );
    }

    public function previousMonth(): void
    {
        if ($this->currentMonth === 1) {
            $this->currentMonth = 12;
            $this->currentYear--;
        } else {
            $this->currentMonth--;
        }
        $this->loadCalendar();
    }

    public function nextMonth(): void
    {
        if ($this->currentMonth === 12) {
            $this->currentMonth = 1;
            $this->currentYear++;
        } else {
            $this->currentMonth++;
        }
        $this->loadCalendar();
    }

    public function regenerateForUserDate($date, $userId): void
    {
        if (!$this->authorizeUser($userId)) {
            session()->flash('error', 'Unauthorized action.');
            return;
        }

        $this->regenerateDate = $date;
        $this->regenerateUserId = $userId;
        $this->showRegenerateModal = true;
    }

    public function confirmRegenerate(): void
    {
        try {
            if (!$this->authorizeUser($this->regenerateUserId)) {
                session()->flash('error', 'Unauthorized action.');
                return;
            }

            $action = new DeleteScheduledUserDishForDateAction();
            $action->execute(
                auth()->user(),
                Carbon::parse($this->regenerateDate),
                $this->regenerateUserId
            );

            $this->showRegenerateModal = false;
            $this->loadCalendar();

            session()->flash('success', 'Schedule regenerated for the selected date!');
        } catch (Exception $e) {
            Log::error('Schedule regeneration failed', ['exception' => $e, 'date' => $this->regenerateDate]);
            session()->flash('error', 'Unable to regenerate schedule. Please try again.');
        }
    }

    public function skipDay($date, $userId): void
    {
        try {
            if (!$this->authorizeUser($userId)) {
                session()->flash('error', 'Unauthorized action.');
                return;
            }

            $action = new SkipScheduledUserDishForDateAction();
            $action->execute(
                auth()->user(),
                Carbon::parse($date),
                $userId
            );

            $this->loadCalendar();

            session()->flash('success', 'Day skipped successfully!');
        } catch (Exception $e) {
            Log::error('Skip day failed', ['exception' => $e, 'date' => $date, 'userId' => $userId]);
            session()->flash('error', 'Unable to skip day. Please try again.');
        }
    }

    private function authorizeUser(int $userId): bool
    {
        $user = User::find($userId);
        return $user && $user->planner_id === auth()->id();
    }

    public function cancel(): void
    {
        $this->showRegenerateModal = false;
        $this->regenerateDate = null;
        $this->regenerateUserId = null;
    }

    public function getMonthNameProperty(): string
    {
        $service = new ScheduleCalendarService();
        return $service->getMonthName($this->currentMonth, $this->currentYear);
    }
}