<?php

namespace App\Http\Controllers;

use App\Models\DataCentre;
use App\Models\ReportingCycle;
use App\Models\Submission;
use Illuminate\Http\Request;

class ReminderController extends Controller
{
    public function index(Request $request)
    {
        abort_unless(auth()->user()->can('peringatan.lihat'), 403);

        $cycles = ReportingCycle::orderByDesc('renewal_year')->get();
        $cycleId = $request->input('cycle') ?: ReportingCycle::aktif()->orderByDesc('renewal_year')->value('id');
        $cycle = $cycleId ? ReportingCycle::find($cycleId) : null;

        $rows = collect();

        if ($cycle) {
            // Pusat data aktif yang mempunyai perunding aktif.
            $query = DataCentre::query()->aktif()
                ->whereNotNull('current_consultant_id')
                ->with('currentConsultant');

            // ID pusat data yang TELAH menghantar (bukan draf) untuk kitaran ini.
            $submittedDcIds = Submission::where('reporting_cycle_id', $cycle->id)
                ->where('status', '!=', 'draf')
                ->pluck('data_centre_id')->all();

            // Buang yang telah hantar — peraturan: keluar dari senarai peringatan selepas hantar.
            $query->whereNotIn('id', $submittedDcIds);

            if ($request->filled('consultant')) {
                $query->where('current_consultant_id', $request->consultant);
            }
            if ($request->filled('data_centre')) {
                $query->where('id', $request->data_centre);
            }

            $rows = $query->orderBy('nama_pusat_data')->get()->map(function ($dc) use ($cycle) {
                // Adakah ada draf separa lengkap?
                $draft = Submission::where('reporting_cycle_id', $cycle->id)
                    ->where('data_centre_id', $dc->id)->first();

                return (object) [
                    'data_centre' => $dc,
                    'consultant' => $dc->currentConsultant,
                    'status' => $draft ? $draft->status : 'belum_mula',
                    'is_overdue' => $cycle->isOverdue(),
                    'submission' => $draft,
                ];
            });

            // Penapis lampau tempoh sahaja.
            if ($request->boolean('overdue')) {
                $rows = $rows->filter(fn ($r) => $r->is_overdue)->values();
            }
        }

        $consultants = \App\Models\Consultant::aktif()->orderBy('nama_perunding')->get();

        return view('reminders.index', compact('rows', 'cycles', 'cycle', 'consultants'));
    }
}