<?php

namespace App\Models;

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

class RegistrationCode extends Model
{
    use HasFactory;

    public const STATUS_AVAILABLE = 'available';
    public const STATUS_USED = 'used';
    public const STATUS_EXPIRED = 'expired';

    protected $fillable = [
        'code',
        'role',
        'name',
        'status',
        'broker_partner_id',
        'partner_id',
        'assigned_to_code_id',
        'used_by_user_id',
        'used_at',
        'expires_at',
        'metadata',
    ];

    protected $casts = [
        'metadata' => 'array',
        'expires_at' => 'datetime',
        'used_at' => 'datetime',
    ];

    public function broker(): BelongsTo
    {
        return $this->belongsTo(Partner::class, 'broker_partner_id');
    }

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

    public function usedBy(): BelongsTo
    {
        return $this->belongsTo(User::class, 'used_by_user_id');
    }

    public function assignedToCode(): BelongsTo
    {
        return $this->belongsTo(RegistrationCode::class, 'assigned_to_code_id');
    }

    public function scopeAvailable($query)
    {
        return $query->where('status', self::STATUS_AVAILABLE);
    }

    public function isAvailable(): bool
    {
        if ($this->status !== self::STATUS_AVAILABLE) {
            return false;
        }

        if ($this->expires_at && now()->greaterThan($this->expires_at)) {
            return false;
        }

        return true;
    }

    public function markUsed(?User $user = null): void
    {
        $this->status = self::STATUS_USED;
        $this->used_at = now();
        if ($user) {
            $this->used_by_user_id = $user->id;
            if ($user->partner_id && !$this->partner_id) {
                $this->partner_id = $user->partner_id;
            }
        }
        $this->save();
    }
}