<?php

namespace App\Http\Controllers\Sales;

use App\Http\Controllers\Controller;
use App\Models\Sales\SalesCommission;
use App\Models\Sales\SalesScenarioChecklist;
use App\Models\Sales\SalesTenantManagement;
use App\Models\Sales\TenantProspect;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\View\View;

/**
 * 관리자용 전체 영업파트너 고객 관리 컨트롤러
 * 관리자/슈퍼관리자만 접근 가능
 */
class AdminProspectController extends Controller
{
    /**
     * 관리자 권한 체크
     */
    private function checkAdminAccess(): void
    {
        if (!auth()->user()->isAdmin() && !auth()->user()->isSuperAdmin()) {
            abort(403, '관리자만 접근할 수 있습니다.');
        }
    }

    /**
     * 전체 고객 목록 페이지
     */
    public function index(Request $request): View|Response
    {
        $this->checkAdminAccess();
        if ($request->header('HX-Request')) {
            return response('', 200)->header('HX-Redirect', route('sales.admin-prospects.index'));
        }

        $data = $this->getIndexData($request);

        return view('sales.admin-prospects.index', $data);
    }

    /**
     * 고객 상세 모달
     */
    public function modalShow(int $id): View
    {
        $this->checkAdminAccess();

        $prospect = TenantProspect::with(['registeredBy', 'tenant'])->findOrFail($id);

        // 진행률
        $progress = SalesScenarioChecklist::getProspectProgress($prospect->id);
        $prospect->sales_progress = $progress['sales']['percentage'];
        $prospect->manager_progress = $progress['manager']['percentage'];

        // management 정보
        $management = SalesTenantManagement::findOrCreateByProspect($prospect->id);

        return view('sales.admin-prospects.partials.show-modal', compact('prospect', 'management', 'progress'));
    }

    /**
     * 콘텐츠 새로고침 (HTMX)
     */
    public function refresh(Request $request): View
    {
        $this->checkAdminAccess();

        $data = $this->getIndexData($request);

        return view('sales.admin-prospects.partials.content', $data);
    }

    /**
     * index 데이터 조회 (공통)
     */
    private function getIndexData(Request $request): array
    {
        // 영업 역할을 가진 사용자 목록 (영업파트너)
        $salesPartners = User::whereHas('userRoles', function ($q) {
            $q->whereHas('role', function ($rq) {
                $rq->whereIn('name', ['sales', 'manager']);
            });
        })->orderBy('name')->get();

        // 필터
        $filters = [
            'search' => $request->get('search'),
            'status' => $request->get('status'),
            'registered_by' => $request->get('registered_by'),
        ];

        // 쿼리 빌드
        $query = TenantProspect::with(['registeredBy', 'tenant']);

        // 검색
        if (!empty($filters['search'])) {
            $search = $filters['search'];
            $query->where(function ($q) use ($search) {
                $q->where('company_name', 'like', "%{$search}%")
                    ->orWhere('business_number', 'like', "%{$search}%")
                    ->orWhere('ceo_name', 'like', "%{$search}%")
                    ->orWhere('contact_phone', 'like', "%{$search}%");
            });
        }

        // 상태 필터
        if (!empty($filters['status'])) {
            $query->where('status', $filters['status']);
        }

        // 영업파트너 필터
        if (!empty($filters['registered_by'])) {
            $query->where('registered_by', $filters['registered_by']);
        }

        $prospects = $query->orderByDesc('created_at')->paginate(20);

        // 각 가망고객의 진행률 계산 및 상태 자동 전환
        foreach ($prospects as $prospect) {
            $progress = SalesScenarioChecklist::getProspectProgress($prospect->id);
            $prospect->sales_progress = $progress['sales']['percentage'];
            $prospect->manager_progress = $progress['manager']['percentage'];

            // 진행률 100% 시 상태 자동 전환 체크
            if ($progress['sales']['percentage'] === 100 && $progress['manager']['percentage'] === 100) {
                SalesScenarioChecklist::checkAndConvertProspectStatus($prospect->id);
                $prospect->refresh();
            }

            // management 정보
            $management = SalesTenantManagement::where('tenant_prospect_id', $prospect->id)->first();
            $prospect->hq_status = $management?->hq_status ?? 'pending';
            $prospect->hq_status_label = $management?->hq_status_label ?? '대기';
            $prospect->manager_user = $management?->manager;

            // 수당 정보 (management가 있는 경우)
            if ($management) {
                $commission = SalesCommission::where('management_id', $management->id)->first();
                $prospect->commission = $commission;
            } else {
                $prospect->commission = null;
            }
        }

        // 전체 통계
        $stats = [
            'total' => TenantProspect::count(),
            'active' => TenantProspect::where('status', TenantProspect::STATUS_ACTIVE)->count(),
            'expired' => TenantProspect::where('status', TenantProspect::STATUS_EXPIRED)->count(),
            'converted' => TenantProspect::where('status', TenantProspect::STATUS_CONVERTED)->count(),
        ];

        // 영업파트너별 통계
        $partnerStats = TenantProspect::selectRaw('registered_by, COUNT(*) as total')
            ->groupBy('registered_by')
            ->with('registeredBy')
            ->get()
            ->map(function ($item) {
                return [
                    'user' => $item->registeredBy,
                    'total' => $item->total,
                ];
            });

        return compact('prospects', 'stats', 'salesPartners', 'partnerStats', 'filters');
    }

    /**
     * 개발 진행 상태 변경
     */
    public function updateHqStatus(int $id, Request $request)
    {
        $this->checkAdminAccess();

        $request->validate([
            'hq_status' => 'required|in:' . implode(',', array_keys(SalesTenantManagement::$hqStatusLabels)),
        ]);

        $prospect = TenantProspect::findOrFail($id);
        $management = SalesTenantManagement::findOrCreateByProspect($prospect->id);

        $management->update([
            'hq_status' => $request->input('hq_status'),
        ]);

        return response()->json([
            'success' => true,
            'hq_status' => $management->hq_status,
            'hq_status_label' => $management->hq_status_label,
        ]);
    }

    /**
     * 수당 날짜 기록/수정
     */
    public function updateCommissionDate(int $id, Request $request)
    {
        $this->checkAdminAccess();

        $request->validate([
            'field' => 'required|in:first_payment_at,first_partner_paid_at,second_payment_at,second_partner_paid_at,first_subscription_at,manager_paid_at',
            'date' => 'nullable|date',
        ]);

        $prospect = TenantProspect::findOrFail($id);
        $management = SalesTenantManagement::findOrCreateByProspect($prospect->id);

        // Commission 레코드 조회 또는 생성
        $commission = SalesCommission::firstOrCreate(
            ['management_id' => $management->id],
            [
                'tenant_id' => $prospect->tenant_id ?? 1,
                'payment_type' => 'deposit',
                'payment_amount' => 0,
                'payment_date' => now(),
                'base_amount' => 0,
                'partner_rate' => 0,
                'manager_rate' => 0,
                'partner_commission' => 0,
                'manager_commission' => 0,
                'scheduled_payment_date' => now()->addMonth()->day(10),
                'status' => SalesCommission::STATUS_PENDING,
                'partner_id' => $management->sales_partner_id ?? 0,
                'manager_user_id' => $management->manager_user_id,
            ]
        );

        $field = $request->input('field');
        $date = $request->input('date') ?: now()->format('Y-m-d');

        $commission->update([
            $field => $date,
        ]);

        return response()->json([
            'success' => true,
            'field' => $field,
            'date' => $commission->$field?->format('Y-m-d'),
            'date_display' => $commission->$field?->format('m/d'),
        ]);
    }

    /**
     * 수당 날짜 삭제 (초기화)
     */
    public function clearCommissionDate(int $id, Request $request)
    {
        $this->checkAdminAccess();

        $request->validate([
            'field' => 'required|in:first_payment_at,first_partner_paid_at,second_payment_at,second_partner_paid_at,first_subscription_at,manager_paid_at',
        ]);

        $prospect = TenantProspect::findOrFail($id);
        $management = SalesTenantManagement::where('tenant_prospect_id', $prospect->id)->first();

        if (!$management) {
            return response()->json(['success' => false, 'message' => '관리 정보가 없습니다.']);
        }

        $commission = SalesCommission::where('management_id', $management->id)->first();

        if (!$commission) {
            return response()->json(['success' => false, 'message' => '수당 정보가 없습니다.']);
        }

        $field = $request->input('field');
        $commission->update([$field => null]);

        return response()->json([
            'success' => true,
            'field' => $field,
        ]);
    }
}