<?php

namespace App\Http\Controllers\Juil;

use App\Http\Controllers\Controller;
use App\Models\Juil\PmisAttendanceEquipment;
use App\Models\Juil\PmisAttendanceWorker;
use App\Models\Juil\PmisDailyAttendance;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class PmisDailyAttendanceController extends Controller
{
    private function tenantId(): int
    {
        return (int) session('current_tenant_id', 1);
    }

    /**
     * 해당 날짜의 출면일보 조회 (없으면 생성)
     */
    public function show(Request $request): JsonResponse
    {
        $date = $request->input('date', now()->toDateString());
        $company = $request->input('company', '');

        $attendance = PmisDailyAttendance::tenant($this->tenantId())
            ->where('date', $date)
            ->when($company, fn ($q) => $q->where('company_name', $company))
            ->first();

        if (! $attendance) {
            $attendance = PmisDailyAttendance::create([
                'tenant_id' => $this->tenantId(),
                'date' => $date,
                'company_name' => $company,
                'weather' => '맑음',
                'status' => 'draft',
            ]);
        }

        $attendance->load(['workers', 'equipments']);

        return response()->json($attendance);
    }

    /**
     * 해당 월의 일별 상태 조회 (캘린더 닷 표시용)
     */
    public function monthStatus(Request $request): JsonResponse
    {
        $year = $request->integer('year', now()->year);
        $month = $request->integer('month', now()->month);
        $company = $request->input('company', '');

        $attendances = PmisDailyAttendance::tenant($this->tenantId())
            ->whereYear('date', $year)
            ->whereMonth('date', $month)
            ->when($company, fn ($q) => $q->where('company_name', $company))
            ->withCount(['workers', 'equipments'])
            ->get();

        $result = [];
        foreach ($attendances as $att) {
            $day = (int) $att->date->format('d');
            if ($att->workers_count > 0 || $att->equipments_count > 0) {
                $result[$day] = $att->status;
            }
        }

        return response()->json($result);
    }

    /**
     * 출면일보 메타 업데이트 (날씨, 특이사항, 상태)
     */
    public function update(Request $request, int $id): JsonResponse
    {
        $attendance = PmisDailyAttendance::tenant($this->tenantId())->findOrFail($id);

        $validated = $request->validate([
            'weather' => 'sometimes|string|max:50',
            'notes' => 'sometimes|nullable|string',
            'status' => 'sometimes|in:draft,review,approved',
            'options' => 'sometimes|nullable|array',
        ]);

        $attendance->update($validated);

        return response()->json($attendance);
    }

    /**
     * 검토자 저장
     */
    public function saveReviewers(Request $request, int $id): JsonResponse
    {
        $attendance = PmisDailyAttendance::tenant($this->tenantId())->findOrFail($id);

        $reviewers = $request->input('reviewers', []);
        $options = $attendance->options ?? [];
        $options['reviewers'] = $reviewers;
        $attendance->update(['options' => $options]);

        return response()->json(['message' => '검토자가 저장되었습니다.']);
    }

    // ─── 인원(Worker) CRUD ───

    public function workerStore(Request $request): JsonResponse
    {
        $validated = $request->validate([
            'attendance_id' => 'required|integer|exists:pmis_daily_attendances,id',
            'work_type' => 'required|string|max:200',
            'job_type' => 'required|string|max:200',
            'name' => 'required|string|max:100',
            'man_days' => 'nullable|numeric|min:0',
            'amount' => 'nullable|numeric|min:0',
            'work_content' => 'nullable|string|max:500',
        ]);

        $validated['tenant_id'] = $this->tenantId();
        $validated['man_days'] = $validated['man_days'] ?? 1.0;
        $validated['amount'] = $validated['amount'] ?? 0;
        $validated['work_content'] = $validated['work_content'] ?? '';

        $maxSort = PmisAttendanceWorker::where('attendance_id', $validated['attendance_id'])->max('sort_order') ?? 0;
        $validated['sort_order'] = $maxSort + 1;

        $worker = PmisAttendanceWorker::create($validated);

        return response()->json($worker, 201);
    }

    public function workerUpdate(Request $request, int $id): JsonResponse
    {
        $worker = PmisAttendanceWorker::where('tenant_id', $this->tenantId())->findOrFail($id);

        $validated = $request->validate([
            'work_type' => 'sometimes|string|max:200',
            'job_type' => 'sometimes|string|max:200',
            'name' => 'sometimes|string|max:100',
            'man_days' => 'nullable|numeric|min:0',
            'amount' => 'nullable|numeric|min:0',
            'work_content' => 'nullable|string|max:500',
        ]);

        $worker->update($validated);

        return response()->json($worker);
    }

    public function workerDestroy(int $id): JsonResponse
    {
        $worker = PmisAttendanceWorker::where('tenant_id', $this->tenantId())->findOrFail($id);
        $worker->delete();

        return response()->json(['message' => '삭제되었습니다.']);
    }

    // ─── 장비(Equipment) CRUD ───

    public function equipmentStore(Request $request): JsonResponse
    {
        $validated = $request->validate([
            'attendance_id' => 'required|integer|exists:pmis_daily_attendances,id',
            'equipment_name' => 'required|string|max:200',
            'specification' => 'nullable|string|max:300',
            'equipment_number' => 'nullable|string|max:100',
            'operator' => 'nullable|string|max:100',
            'man_days' => 'nullable|numeric|min:0',
            'work_content' => 'nullable|string|max:500',
        ]);

        $validated['tenant_id'] = $this->tenantId();
        $validated['man_days'] = $validated['man_days'] ?? 1.0;
        $validated['work_content'] = $validated['work_content'] ?? '';

        $maxSort = PmisAttendanceEquipment::where('attendance_id', $validated['attendance_id'])->max('sort_order') ?? 0;
        $validated['sort_order'] = $maxSort + 1;

        $equipment = PmisAttendanceEquipment::create($validated);

        return response()->json($equipment, 201);
    }

    public function equipmentUpdate(Request $request, int $id): JsonResponse
    {
        $equipment = PmisAttendanceEquipment::where('tenant_id', $this->tenantId())->findOrFail($id);

        $validated = $request->validate([
            'equipment_name' => 'sometimes|string|max:200',
            'specification' => 'nullable|string|max:300',
            'equipment_number' => 'nullable|string|max:100',
            'operator' => 'nullable|string|max:100',
            'man_days' => 'nullable|numeric|min:0',
            'work_content' => 'nullable|string|max:500',
        ]);

        $equipment->update($validated);

        return response()->json($equipment);
    }

    public function equipmentDestroy(int $id): JsonResponse
    {
        $equipment = PmisAttendanceEquipment::where('tenant_id', $this->tenantId())->findOrFail($id);
        $equipment->delete();

        return response()->json(['message' => '삭제되었습니다.']);
    }
}