<?php

namespace App\Http\Controllers;

use App\Models\AttendanceRecord;
use App\Models\AuditLog;
use App\Models\Member;
use Illuminate\Database\UniqueConstraintViolationException;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;

class CounterController extends Controller
{
    public function index(): View
    {
        return view('counter.index');
    }

    /** Live search (AJAX) — laju untuk ~200 peserta */
    public function search(Request $request): JsonResponse
    {
        $term = trim((string) $request->query('q', ''));

        if (mb_strlen($term) < 2) {
            return response()->json(['data' => [], 'message' => 'Taip sekurang-kurangnya 2 aksara.']);
        }

        $members = Member::query()
            ->search($term)
            ->with('attendance')
            ->orderBy('nama')
            ->limit(25)
            ->get()
            ->map(fn (Member $m) => $this->present($m));

        return response()->json([
            'data' => $members,
            'message' => $members->isEmpty()
                ? 'Rekod tidak dijumpai. Individu ini bukan anggota koperasi yang berdaftar.'
                : null,
        ]);
    }

    /** Rekod kehadiran — elak double attendance */
    public function store(Request $request): JsonResponse
    {
        $data = $request->validate([
            'member_id' => ['required', 'integer', 'exists:members,id'],
        ]);

        $member = Member::with('attendance')->findOrFail($data['member_id']);

        if ($member->attendance) {
            return response()->json([
                'status' => 'already',
                'message' => 'Anggota ini sudah direkodkan hadir.',
                'member' => $this->present($member),
            ], 200);
        }

        try {
            $attendance = AttendanceRecord::create([
                'member_id' => $member->id,
                'attended_at' => now(),
                'recorded_by' => $request->user()->id,
                'ip_address' => $request->ip(),
                'user_agent' => substr((string) $request->userAgent(), 0, 255),
            ]);
        } catch (UniqueConstraintViolationException $e) {
            // Race: dua kaunter rekod serentak
            $member->load('attendance');

            return response()->json([
                'status' => 'already',
                'message' => 'Anggota ini sudah direkodkan hadir.',
                'member' => $this->present($member),
            ], 200);
        }

        AuditLog::record('attendance.record', "Rekod hadir: {$member->nama}", $attendance, [
            'member_id' => $member->id,
        ]);

        $member->load('attendance');

        return response()->json([
            'status' => 'ok',
            'message' => "Kehadiran {$member->nama} berjaya direkodkan.",
            'member' => $this->present($member),
        ]);
    }

    private function present(Member $m): array
    {
        return [
            'id' => $m->id,
            'nama' => $m->nama,
            'no_pekerja' => $m->no_pekerja,
            'no_anggota' => $m->no_anggota,
            'masked_kp' => $m->maskedKp(),
            'jabatan' => $m->jabatan,
            'bahagian' => $m->bahagian,
            'status_aktif' => (bool) $m->status_aktif,
            'hadir' => (bool) $m->attendance,
            'attended_at' => $m->attendance?->attended_at?->format('d/m/Y H:i:s'),
        ];
    }
}