<?php

namespace App\Models;

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

class PractitionerDocument extends Model
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'practitioner_id',
        'doc_type',
        'file_id',
        'issue_date',
        'expiry_date',
        'status',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'issue_date' => 'date',
        'expiry_date' => 'date',
        'created_at' => 'datetime',
        'updated_at' => 'datetime',
    ];

    /**
     * Get the thanatopractitioner that owns the document.
     */
    public function thanatopractitioner(): BelongsTo
    {
        return $this->belongsTo(Thanatopractitioner::class, 'practitioner_id');
    }

    /**
     * Scope a query to only include documents with valid expiry date.
     */
    public function scopeValid($query)
    {
        return $query->where(function ($q) {
            $q->whereNull('expiry_date')
              ->orWhere('expiry_date', '>=', now());
        });
    }

    /**
     * Scope a query to only include documents with expired expiry date.
     */
    public function scopeExpired($query)
    {
        return $query->whereNotNull('expiry_date')
                     ->where('expiry_date', '<', now());
    }

    /**
     * Scope a query to filter by document type.
     */
    public function scopeOfType($query, string $type)
    {
        return $query->where('doc_type', $type);
    }

    /**
     * Check if the document is still valid.
     */
    public function getIsValidAttribute(): bool
    {
        if (!$this->expiry_date) {
            return true; // No expiry date means it's valid
        }

        return $this->expiry_date >= now();
    }
}