<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Carbon\Carbon;

class TenantPackage extends Model
{
    use HasFactory;

    protected $table = 'tenant_packages';

    protected $fillable = [
        'tenant_id',
        'package_id',
        'price',
        'purchased_at',
        'expires_at',
        'used_events',
        'active',
    ];

    protected $casts = [
        'price' => 'decimal:2',
        'purchased_at' => 'datetime',
        'expires_at' => 'datetime',
        'used_events' => 'integer',
        'active' => 'boolean',
    ];

    public function tenant(): BelongsTo
    {
        return $this->belongsTo(Tenant::class);
    }

    public function package(): BelongsTo
    {
        return $this->belongsTo(Package::class);
    }

    public function isActive(): bool
    {
        return $this->active && (!$this->expires_at || $this->expires_at->isFuture());
    }

    public function canCreateEvent(): bool
    {
        if (!$this->isActive()) {
            return false;
        }

        if (!$this->package->isReseller()) {
            return false;
        }

        $maxEvents = $this->package->max_events_per_year ?? 0;
        return $this->used_events < $maxEvents;
    }

    public function getRemainingEventsAttribute(): int
    {
        if (!$this->package->isReseller()) {
            return 0;
        }

        $max = $this->package->max_events_per_year ?? 0;
        return max(0, $max - $this->used_events);
    }

    protected static function boot()
    {
        parent::boot();

        static::creating(function ($tenantPackage) {
            if (!$tenantPackage->purchased_at) {
                $tenantPackage->purchased_at = now();
            }
            if (!$tenantPackage->expires_at && $tenantPackage->package) {
                $tenantPackage->expires_at = now()->addYear(); // Standard für Reseller
            }
            $tenantPackage->active = true;
        });

        static::updating(function ($tenantPackage) {
            if ($tenantPackage->isDirty('expires_at') && $tenantPackage->expires_at->isPast()) {
                $tenantPackage->active = false;
            }
        });
    }
}