<?php

namespace App\Http\Controllers\Sales;

use App\Http\Controllers\Controller;
use App\Models\Sales\SalesManager;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\View\View;

/**
 * 영업 담당자/매니저 관리 컨트롤러
 */
class SalesManagerController extends Controller
{
    /**
     * 목록 페이지
     */
    public function index(Request $request): View|Response
    {
        if ($request->header('HX-Request')) {
            return response('', 200)->header('HX-Redirect', route('sales.managers.index'));
        }

        $query = SalesManager::query()->active();

        // 검색
        if ($search = $request->get('search')) {
            $query->where(function ($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                    ->orWhere('member_id', 'like', "%{$search}%")
                    ->orWhere('email', 'like', "%{$search}%")
                    ->orWhere('phone', 'like', "%{$search}%");
            });
        }

        // 역할 필터
        if ($role = $request->get('role')) {
            $query->where('role', $role);
        }

        $managers = $query->orderBy('name')->paginate(20);

        // 통계
        $stats = [
            'total' => SalesManager::active()->count(),
            'operators' => SalesManager::active()->where('role', 'operator')->count(),
            'sales_admins' => SalesManager::active()->where('role', 'sales_admin')->count(),
            'managers' => SalesManager::active()->where('role', 'manager')->count(),
        ];

        return view('sales.managers.index', compact('managers', 'stats'));
    }

    /**
     * 등록 폼
     */
    public function create(): View
    {
        $parents = SalesManager::active()
            ->whereIn('role', ['operator', 'sales_admin'])
            ->orderBy('name')
            ->get();

        return view('sales.managers.create', compact('parents'));
    }

    /**
     * 등록 처리
     */
    public function store(Request $request)
    {
        $validated = $request->validate([
            'member_id' => 'required|string|max:50|unique:sales_managers,member_id',
            'password' => 'required|string|min:4',
            'name' => 'required|string|max:100',
            'phone' => 'nullable|string|max:20',
            'email' => 'nullable|email|max:100',
            'parent_id' => 'nullable|exists:sales_managers,id',
            'role' => 'required|in:operator,sales_admin,manager',
            'remarks' => 'nullable|string',
        ]);

        SalesManager::create($validated);

        return redirect()->route('sales.managers.index')
            ->with('success', '담당자가 등록되었습니다.');
    }

    /**
     * 상세 페이지
     */
    public function show(int $id): View
    {
        $manager = SalesManager::with(['parent', 'children', 'registeredProspects', 'records'])
            ->findOrFail($id);

        return view('sales.managers.show', compact('manager'));
    }

    /**
     * 수정 폼
     */
    public function edit(int $id): View
    {
        $manager = SalesManager::findOrFail($id);
        $parents = SalesManager::active()
            ->whereIn('role', ['operator', 'sales_admin'])
            ->where('id', '!=', $id)
            ->orderBy('name')
            ->get();

        return view('sales.managers.edit', compact('manager', 'parents'));
    }

    /**
     * 수정 처리
     */
    public function update(Request $request, int $id)
    {
        $manager = SalesManager::findOrFail($id);

        $validated = $request->validate([
            'name' => 'required|string|max:100',
            'phone' => 'nullable|string|max:20',
            'email' => 'nullable|email|max:100',
            'parent_id' => 'nullable|exists:sales_managers,id',
            'role' => 'required|in:operator,sales_admin,manager',
            'remarks' => 'nullable|string',
            'password' => 'nullable|string|min:4',
        ]);

        // 비밀번호가 비어있으면 제외
        if (empty($validated['password'])) {
            unset($validated['password']);
        }

        $manager->update($validated);

        return redirect()->route('sales.managers.index')
            ->with('success', '담당자 정보가 수정되었습니다.');
    }

    /**
     * 삭제 처리 (비활성화)
     */
    public function destroy(int $id)
    {
        $manager = SalesManager::findOrFail($id);
        $manager->update(['is_active' => false]);

        return redirect()->route('sales.managers.index')
            ->with('success', '담당자가 비활성화되었습니다.');
    }
}