<?php

namespace App\Models;

use CodeIgniter\Model;

class UserModel extends Model
{
    protected $table            = 'users';
    protected $primaryKey       = 'id';
    protected $useAutoIncrement = true;
    protected $returnType       = 'array';
    protected $useSoftDeletes   = false;
    protected $protectFields    = true;
    protected $allowedFields = [
        'formatted_user_id',
        'first_name',
        'last_name',
        'email',
        'password',
        'role',
        'status',
        'session_token',
        'reset_token',
        'reset_token_expires',
    ];

    protected bool $allowEmptyInserts = false;
    protected bool $updateOnlyChanged = true;

    protected array $casts = [];
    protected array $castHandlers = [];

    // Dates
    protected $useTimestamps = false;
    protected $dateFormat    = 'datetime';
    protected $createdField  = 'created_at';
    protected $updatedField  = 'updated_at';
    protected $deletedField  = 'deleted_at';

    // Validation
    protected $validationRules      = [];
    protected $validationMessages   = [];
    protected $skipValidation       = false;
    protected $cleanValidationRules = true;

    // Callbacks
    protected $allowCallbacks = true;
    protected $beforeInsert   = [];
    protected $afterInsert    = ['assignFormattedUserId'];
    protected $beforeUpdate   = [];
    protected $afterUpdate    = [];
    protected $beforeFind     = [];
    protected $afterFind      = [];
    protected $beforeDelete   = [];
    protected $afterDelete    = [];

    public function emailExists(string $email): bool
    {
        return $this->where('email', trim($email))->first() !== null;
    }

    public function emailExistsExcept(string $email, ?int $excludeUserId = null): bool
    {
        $builder = $this->where('email', trim($email));

        if ($excludeUserId !== null && $excludeUserId > 0) {
            $builder->where('id !=', $excludeUserId);
        }

        return $builder->first() !== null;
    }

    protected function assignFormattedUserId(array $data): array
    {
        $insertId = (int) ($data['id'] ?? 0);
        $role     = strtolower((string) ($data['data']['role'] ?? ''));

        if ($insertId < 1) {
            return $data;
        }

        if ($role === '') {
            $user = $this->find($insertId);
            $role = strtolower((string) ($user['role'] ?? ''));
        }

        $this->builder()
            ->where('id', $insertId)
            ->where('(formatted_user_id IS NULL OR formatted_user_id = "")')
            ->update([
                'formatted_user_id' => $this->formatUserId($insertId, $role),
            ]);

        return $data;
    }

    public function formatUserId(int $userId, ?string $role = null): string
    {
        $prefix = match (strtolower((string) $role)) {
            'patient' => 'PAT',
            'doctor'   => 'PHY',
        };

        return $prefix . str_pad((string) $userId, 7, '0', STR_PAD_LEFT);
    }
}