<?php

namespace App\Models;

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

class VendingMachine extends Model
{
    protected $fillable = [
        'name',
        'machine_number',
        'slug',
        'location',
        'description',
        'is_active',
        'tenant_id'
    ];

    protected $casts = [
        'is_active' => 'boolean',
    ];

    public function slots(): HasMany
    {
        return $this->hasMany(Slot::class);
    }

    public function activeSlots(): HasMany
    {
        return $this->hasMany(Slot::class)->where('is_active', true);
    }

    /**
     * Beziehung zum Mandanten
     */
    public function tenant()
    {
        return $this->belongsTo(Tenant::class);
    }

    /**
     * Generiere einen eindeutigen Slug für diesen Mandanten
     */
    public function generateSlug($name = null, $tenantId = null)
    {
        $name = $name ?: $this->name;
        $tenantId = $tenantId ?: $this->tenant_id;
        
        $baseSlug = \Illuminate\Support\Str::slug($name);
        $slug = $baseSlug;
        $counter = 1;
        
        // Prüfe auf eindeutigen Slug innerhalb des Mandanten
        while (static::where('tenant_id', $tenantId)
                     ->where('slug', $slug)
                     ->where('id', '!=', $this->id ?? 0)
                     ->exists()) {
            $slug = $baseSlug . '-' . $counter;
            $counter++;
        }
        
        return $slug;
    }

    /**
     * Boot-Method für automatische Slug-Generierung
     */
    protected static function boot()
    {
        parent::boot();
        
        static::creating(function ($machine) {
            if (empty($machine->slug)) {
                $machine->slug = $machine->generateSlug($machine->name, $machine->tenant_id);
            }
        });
        
        static::updating(function ($machine) {
            if ($machine->isDirty('name') && empty($machine->slug)) {
                $machine->slug = $machine->generateSlug($machine->name, $machine->tenant_id);
            }
        });
    }

    /**
     * Route Model Binding basierend auf Mandant und machine_number
     */
    public function getRouteKeyName()
    {
        return 'machine_number';
    }
}