<?php

namespace App\Services;

use App\Models\AppSetting;
use App\Models\ChecklistTemplate;
use App\Models\ReportingCycle;
use Illuminate\Support\Carbon;

class ReportingCycleService
{
    /**
     * Bina atribut kitaran daripada tahun pembaharuan.
     * Peraturan perniagaan:
     *  - reporting_year = renewal_year - 2 (cth: pembaharuan 2028 => pelaporan 2026)
     *  - tempoh pelaporan: 1 Jan - 31 Dis tahun pelaporan
     *  - tarikh tutup lalai: hari/bulan yang dikonfigur JPP, tahun (renewal_year - 1)
     */
    public function buildAttributes(int $renewalYear, ?string $cutOffDate = null): array
    {
        $reportingYear = ReportingCycle::reportingYearFor($renewalYear);

        $cutOffDay = (int) AppSetting::get('default_cut_off_day', 1);
        $cutOffMonth = (int) AppSetting::get('default_cut_off_month', 12);

        // Pembaharuan dibuat sebelum/pada 1 Disember tahun sebelum pembaharuan.
        $defaultCutOff = Carbon::create($renewalYear - 1, $cutOffMonth, $cutOffDay);

        return [
            'reporting_year' => $reportingYear,
            'period_start' => Carbon::create($reportingYear, 1, 1),
            'period_end' => Carbon::create($reportingYear, 12, 31),
            'cut_off_date' => $cutOffDate ? Carbon::parse($cutOffDate) : $defaultCutOff,
            'checklist_template_id' => ChecklistTemplate::activeTemplate()?->id,
        ];
    }
}