<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class EventOccurrence extends Model
{
    protected $fillable = [
        'event_id',
        'start_datetime',
        'end_datetime',
        'is_all_day',
        'location_details',
        'capacity',
        'available_tickets',
        'price',
        'status',
    ];

    protected $casts = [
        'start_datetime' => 'datetime',
        'end_datetime' => 'datetime',
        'is_all_day' => 'boolean',
        'capacity' => 'integer',
        'available_tickets' => 'integer',
        'price' => 'decimal:2',
        'created_at' => 'datetime',
        'updated_at' => 'datetime',
    ];

    /**
     * Ein EventOccurrence gehört zu einem Event.
     */
    public function event(): BelongsTo
    {
        return $this->belongsTo(Event::class);
    }

    /**
     * Scope für geplante Vorkommen ab heute.
     */
    public function scopeUpcoming($query)
    {
        return $query->where('start_datetime', '>=', now())
                     ->where('status', 'scheduled')
                     ->orderBy('start_datetime');
    }

    /**
     * Scope für Vorkommen an einem bestimmten Datum.
     */
    public function scopeOnDate($query, $date)
    {
        return $query->whereDate('start_datetime', $date);
    }

    /**
     * Scope für Vorkommen in einem Zeitraum.
     */
    public function scopeBetween($query, $startDate, $endDate)
    {
        return $query->whereBetween('start_datetime', [$startDate, $endDate]);
    }

    /**
     * Scope für geplante Vorkommen.
     */
    public function scopeScheduled($query)
    {
        return $query->where('status', 'scheduled');
    }

    /**
     * Prüfe ob Tickets verfügbar sind.
     */
    public function hasAvailableTickets()
    {
        if ($this->capacity === null) {
            return true; // Unbegrenzte Kapazität
        }

        return $this->available_tickets > 0;
    }

    /**
     * Formatierte Dauer (z.B. "14:00 - 16:00" oder "ganztägig")
     */
    public function getFormattedDurationAttribute()
    {
        if ($this->is_all_day) {
            return 'Ganztägig';
        }

        $start = $this->start_datetime->format('H:i');
        $end = $this->end_datetime?->format('H:i') ?? '∞';

        return "{$start} - {$end}";
    }
}