<?php

namespace Modules\Lpj\Imports;

use Modules\Lpj\app\Models\ReferensiLink;
use Maatwebsite\Excel\Concerns\ToModel;
use Maatwebsite\Excel\Concerns\WithHeadingRow;
use Maatwebsite\Excel\Concerns\WithValidation;
use Maatwebsite\Excel\Concerns\Importable;
use Maatwebsite\Excel\Concerns\SkipsFailures;
use Maatwebsite\Excel\Concerns\SkipsOnFailure;
use Maatwebsite\Excel\Concerns\WithBatchInserts;
use Maatwebsite\Excel\Concerns\WithChunkReading;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Log;

class ReferensiLinkImport implements ToModel, WithHeadingRow, WithValidation, SkipsOnFailure, WithBatchInserts, WithChunkReading
{
    use Importable, SkipsFailures;

    protected $importedCount = 0;
    protected $failedCount = 0;
    protected $errors = [];

    /**
     * Convert row to model
     */
    public function model(array $row)
    {
        try {
            $this->importedCount++;
            
            return new ReferensiLink([
                'name' => $row['nama'] ?? $row['name'],
                'link' => $this->formatLink($row['link'] ?? $row['url'] ?? ''),
                'kategori' => $row['kategori'] ?? $row['category'] ?? 'lainnya',
                'deskripsi' => $row['deskripsi'] ?? $row['description'] ?? null,
                'is_active' => $this->parseStatus($row['status_aktif'] ?? $row['is_active'] ?? 'aktif'),
                'urutan' => $this->parseUrutan($row['urutan'] ?? $row['order'] ?? 0),
                'created_by' => Auth::id(),
                'updated_by' => Auth::id(),
            ]);

        } catch (\Exception $e) {
            $this->failedCount++;
            $this->errors[] = "Baris {$row['row_number']}: " . $e->getMessage();
            Log::error('Import ReferensiLink Error: ' . $e->getMessage(), ['row' => $row]);
            return null;
        }
    }

    /**
     * Validation rules
     */
    public function rules(): array
    {
        return [
            'nama' => 'required|string|max:255',
            'name' => 'required|string|max:255',
            'link' => 'required|string|max:500',
            'url' => 'required|string|max:500',
            'kategori' => 'nullable|string|max:100',
            'category' => 'nullable|string|max:100',
            'deskripsi' => 'nullable|string|max:2000',
            'description' => 'nullable|string|max:2000',
            'status_aktif' => 'nullable|string|in:aktif,tidak aktif,1,0,true,false',
            'is_active' => 'nullable|string|in:aktif,tidak aktif,1,0,true,false',
            'urutan' => 'nullable|integer|min:0',
            'order' => 'nullable|integer|min:0',
        ];
    }

    /**
     * Custom validation messages
     */
    public function customValidationMessages()
    {
        return [
            'nama.required' => 'Nama wajib diisi',
            'name.required' => 'Nama wajib diisi',
            'link.required' => 'Link wajib diisi',
            'url.required' => 'Link wajib diisi',
            'link.url' => 'Link harus berupa URL yang valid',
            'url.url' => 'Link harus berupa URL yang valid',
            'kategori.max' => 'Kategori maksimal 100 karakter',
            'category.max' => 'Kategori maksimal 100 karakter',
            'deskripsi.max' => 'Deskripsi maksimal 2000 karakter',
            'description.max' => 'Deskripsi maksimal 2000 karakter',
        ];
    }

    /**
     * Batch size for inserts
     */
    public function batchSize(): int
    {
        return 100;
    }

    /**
     * Chunk size for reading
     */
    public function chunkSize(): int
    {
        return 100;
    }

    /**
     * Format link to ensure it has protocol
     */
    private function formatLink($link)
    {
        if (empty($link)) {
            return null;
        }

        // Remove any whitespace
        $link = trim($link);
        
        // Add protocol if not present
        if (!preg_match('/^(https?:\/\/)/i', $link)) {
            $link = 'https://' . $link;
        }

        return $link;
    }

    /**
     * Parse status value
     */
    private function parseStatus($status)
    {
        if (empty($status)) {
            return true;
        }

        $status = strtolower(trim($status));
        
        return in_array($status, ['aktif', '1', 'true', 'yes', 'ya']);
    }

    /**
     * Parse order value
     */
    private function parseUrutan($urutan)
    {
        if (empty($urutan)) {
            return 0;
        }

        return (int) $urutan;
    }

    /**
     * Get import statistics
     */
    public function getImportStats(): array
    {
        return [
            'imported' => $this->importedCount,
            'failed' => $this->failedCount,
            'errors' => $this->errors,
            'success' => $this->importedCount - $this->failedCount,
        ];
    }
}