<?php

namespace App\Livewire\Schedule;

use App\Models\ScheduledUserDish;
use Carbon\Carbon;
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()
    {
        $this->currentMonth = now()->month;
        $this->currentYear = now()->year;
        $this->generateCalendar();
    }

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

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

    public function refreshCalendar()
    {
        $this->generateCalendar();
    }

    public function generateCalendar()
    {
        $this->calendarDays = [];
        
        // Get first day of the month and total days
        $firstDay = Carbon::createFromDate($this->currentYear, $this->currentMonth, 1);
        $daysInMonth = $firstDay->daysInMonth;
        
        // Generate 31 days for consistency with React version
        for ($day = 1; $day <= 31; $day++) {
            if ($day <= $daysInMonth) {
                $date = Carbon::createFromDate($this->currentYear, $this->currentMonth, $day);
                
                // Get scheduled dishes for this date
                $scheduledDishes = ScheduledUserDish::with(['user', 'dish'])
                    ->whereDate('date', $date->format('Y-m-d'))
                    ->get();
                
                $this->calendarDays[] = [
                    'day' => $day,
                    'date' => $date,
                    'isToday' => $date->isToday(),
                    'scheduledDishes' => $scheduledDishes,
                    'isEmpty' => $scheduledDishes->isEmpty()
                ];
            } else {
                // Empty slot for days that don't exist in this month
                $this->calendarDays[] = [
                    'day' => null,
                    'date' => null,
                    'isToday' => false,
                    'scheduledDishes' => collect(),
                    'isEmpty' => true
                ];
            }
        }
    }

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

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


    public function regenerateForUserDate($date, $userId)
    {
        $this->regenerateDate = $date;
        $this->regenerateUserId = $userId;
        $this->showRegenerateModal = true;
    }

    public function confirmRegenerate()
    {
        try {
            // Delete existing scheduled dish for this user on this date
            ScheduledUserDish::whereDate('date', $this->regenerateDate)
                ->where('user_id', $this->regenerateUserId)
                ->delete();
            
            // You could call a specific regeneration method here
            // For now, we'll just delete and let the user generate again
            
            $this->showRegenerateModal = false;
            $this->generateCalendar(); // Refresh calendar
            
            session()->flash('success', 'Schedule regenerated for the selected date!');
        } catch (\Exception $e) {
            session()->flash('error', 'Error regenerating schedule: ' . $e->getMessage());
        }
    }

    public function skipDay($date, $userId)
    {
        try {
            // Mark this day as skipped or delete the assignment
            ScheduledUserDish::whereDate('date', $date)
                ->where('user_id', $userId)
                ->delete();
            
            $this->generateCalendar(); // Refresh calendar
            
            session()->flash('success', 'Day skipped successfully!');
        } catch (\Exception $e) {
            session()->flash('error', 'Error skipping day: ' . $e->getMessage());
        }
    }

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

    public function getMonthNameProperty()
    {
        return Carbon::createFromDate($this->currentYear, $this->currentMonth, 1)->format('F Y');
    }
}