<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\System\Company;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class CompanyController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(Request $request)
    {
        $query = Company::query()->withCount(['users', 'machines']);

        // 搜尋
        if ($search = $request->input('search')) {
            $query->where(function($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                  ->orWhere('code', 'like', "%{$search}%");
            });
        }

        // 狀態篩選
        if ($request->filled('status')) {
            $query->where('status', $request->status);
        }

        $limit = $request->input('limit', 10);
        $companies = $query->latest()->paginate($limit)->withQueryString();

        return view('admin.companies.index', compact('companies'));
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'code' => 'required|string|max:50|unique:companies,code',
            'tax_id' => 'nullable|string|max:50',
            'contact_name' => 'nullable|string|max:255',
            'contact_phone' => 'nullable|string|max:50',
            'contact_email' => 'nullable|email|max:255',
            'valid_until' => 'nullable|date',
            'status' => 'required|boolean',
            'note' => 'nullable|string',
            // 帳號相關欄位 (可選)
            'admin_username' => 'nullable|string|max:255|unique:users,username',
            'admin_password' => 'nullable|string|min:8',
            'admin_name' => 'nullable|string|max:255',
        ]);

        DB::transaction(function () use ($validated) {
            $company = Company::create([
                'name' => $validated['name'],
                'code' => $validated['code'],
                'tax_id' => $validated['tax_id'] ?? null,
                'contact_name' => $validated['contact_name'] ?? null,
                'contact_phone' => $validated['contact_phone'] ?? null,
                'contact_email' => $validated['contact_email'] ?? null,
                'valid_until' => $validated['valid_until'] ?? null,
                'status' => $validated['status'],
                'note' => $validated['note'] ?? null,
            ]);

            // 如果有填寫帳號資訊，則建立管理員帳號
            if (!empty($validated['admin_username']) && !empty($validated['admin_password'])) {
                $user = \App\Models\System\User::create([
                    'company_id' => $company->id,
                    'username' => $validated['admin_username'],
                    'password' => \Illuminate\Support\Facades\Hash::make($validated['admin_password']),
                    'name' => $validated['admin_name'] ?: ($validated['contact_name'] ?: $validated['name']),
                    'status' => 1,
                ]);

                // 綁定客戶管理員角色
                $user->assignRole('tenant-admin');
            }
        });

        return redirect()->back()->with('success', __('Customer created successfully.'));
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, Company $company)
    {
        $validated = $request->validate([
            'name' => 'required|string|max:255',
            'code' => 'required|string|max:50|unique:companies,code,' . $company->id,
            'tax_id' => 'nullable|string|max:50',
            'contact_name' => 'required|string|max:255',
            'contact_phone' => 'nullable|string|max:50',
            'contact_email' => 'nullable|email|max:255',
            'valid_until' => 'nullable|date',
            'status' => 'required|boolean',
            'note' => 'nullable|string',
        ]);

        $company->update($validated);

        return redirect()->back()->with('success', __('Customer updated successfully.'));
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(Company $company)
    {
        if ($company->users()->count() > 0) {
            return redirect()->back()->with('error', __('Cannot delete company with active accounts.'));
        }

        $company->delete();

        return redirect()->back()->with('success', __('Customer deleted successfully.'));
    }
}