<?php

namespace App\Models;

use CodeIgniter\Model;

class PageModel extends Model
{
    protected $table            = 'pages';
    protected $primaryKey       = 'id';
    protected $useAutoIncrement = true;
    protected $returnType       = 'array';
    protected $useSoftDeletes   = false;
    protected $protectFields    = true;
    protected $allowedFields    = ['title', 'slug', 'content', 'content_json', 'content_html', 'excerpt', 'featured_image', 'status'];

    protected bool $allowEmptyInserts = false;

    protected $useTimestamps = true;
    protected $dateFormat    = 'datetime';
    protected $createdField  = 'created_at';
    protected $updatedField  = 'updated_at';
    protected $deletedField  = null;

    // Validation
    protected $validationRules = [
        'title'   => 'required|min_length[3]|max_length[255]',
        'slug'    => 'permit_empty|max_length[255]|is_unique[pages.slug,id,{id}]',
        'content_json' => 'permit_empty',
        'content_html' => 'permit_empty',
        'status'  => 'required|in_list[draft,published]',
    ];

    protected $validationMessages = [
        'title' => [
            'required' => 'Judul halaman harus diisi.',
            'min_length' => 'Judul halaman minimal 3 karakter.',
            'max_length' => 'Judul halaman maksimal 255 karakter.',
        ],
        'slug' => [
            'required' => 'Slug harus diisi.',
            'is_unique' => 'Slug sudah digunakan, silakan gunakan judul yang berbeda.',
        ],
        'content' => [
            'required' => 'Konten halaman harus diisi.',
        ],
        'status' => [
            'required' => 'Status harus dipilih.',
            'in_list' => 'Status harus draft atau published.',
        ],
    ];

    protected $skipValidation = false;
    protected $cleanValidationRules = true;

    /**
     * Generate slug from title
     */
    public function generateSlug(string $title, ?int $excludeId = null): string
    {
        // Convert to lowercase and replace spaces with hyphens
        $slug = strtolower(trim($title));
        $slug = preg_replace('/[^a-z0-9-]/', '-', $slug);
        $slug = preg_replace('/-+/', '-', $slug);
        $slug = trim($slug, '-');

        // If slug is empty, use timestamp
        if (empty($slug)) {
            $slug = 'page-' . time();
        }

        // Check if slug exists
        $baseSlug = $slug;
        $counter = 1;
        while ($this->slugExists($slug, $excludeId)) {
            $slug = $baseSlug . '-' . $counter;
            $counter++;
        }

        return $slug;
    }

    /**
     * Check if slug exists
     */
    protected function slugExists(string $slug, ?int $excludeId = null): bool
    {
        $builder = $this->where('slug', $slug);
        
        if ($excludeId !== null) {
            $builder->where('id !=', $excludeId);
        }

        return $builder->countAllResults() > 0;
    }

    /**
     * Count pages by status
     */
    public function countByStatus(?string $status = null): int
    {
        if ($status !== null) {
            return $this->where('status', $status)->countAllResults();
        }

        return $this->countAllResults();
    }
}