<?php

namespace App\Http\Controllers;

use App\Http\Requests\ReportingCycleRequest;
use App\Models\ChecklistTemplate;
use App\Models\ReportingCycle;
use App\Services\ReportingCycleService;

class ReportingCycleController extends Controller
{
    public function __construct(protected ReportingCycleService $service) {}

    public function index()
    {
        $this->authorize('viewAny', ReportingCycle::class);

        $cycles = ReportingCycle::withCount('submissions')
            ->orderByDesc('renewal_year')->paginate(15);

        return view('reporting_cycles.index', compact('cycles'));
    }

    public function create()
    {
        $this->authorize('create', ReportingCycle::class);

        $templates = ChecklistTemplate::orderByDesc('is_active')->get();

        return view('reporting_cycles.create', [
            'cycle' => new ReportingCycle(['licence_period_year' => 1, 'status' => 'aktif']),
            'templates' => $templates,
        ]);
    }

    public function store(ReportingCycleRequest $request)
    {
        $attrs = $this->service->buildAttributes(
            (int) $request->renewal_year,
            $request->cut_off_date
        );

        $cycle = ReportingCycle::create(array_merge($request->validated(), $attrs));

        return redirect()->route('reporting-cycles.index')
            ->with('success', "Kitaran pembaharuan {$cycle->renewal_year} (pelaporan {$cycle->reporting_year}) dicipta.");
    }

    public function edit(ReportingCycle $reportingCycle)
    {
        $this->authorize('update', $reportingCycle);

        $templates = ChecklistTemplate::orderByDesc('is_active')->get();

        return view('reporting_cycles.edit', ['cycle' => $reportingCycle, 'templates' => $templates]);
    }

    public function update(ReportingCycleRequest $request, ReportingCycle $reportingCycle)
    {
        $this->authorize('update', $reportingCycle);

        // Kira semula tahun pelaporan & tempoh jika tahun pembaharuan berubah.
        $attrs = $this->service->buildAttributes(
            (int) $request->renewal_year,
            $request->cut_off_date
        );
        // Kekalkan templat pilihan pengguna jika diberi.
        $attrs['checklist_template_id'] = $request->checklist_template_id ?? $attrs['checklist_template_id'];

        $reportingCycle->update(array_merge($request->validated(), $attrs));

        return redirect()->route('reporting-cycles.index')
            ->with('success', 'Kitaran pelaporan dikemas kini.');
    }

    public function destroy(ReportingCycle $reportingCycle)
    {
        $this->authorize('delete', $reportingCycle);

        if ($reportingCycle->submissions()->exists()) {
            return back()->with('error', 'Kitaran tidak boleh dipadam kerana telah mempunyai serahan.');
        }

        $reportingCycle->delete();

        return redirect()->route('reporting-cycles.index')->with('success', 'Kitaran dipadam.');
    }
}