<?php
namespace App\Http\Controllers\Admin\Mail;

use App\Http\Controllers\Controller;
use App\Services\Admin\Mail\AdminMailService;
use Illuminate\Http\Request;

final class AdminMailTemplateController extends Controller
{
    public function __construct(private readonly AdminMailService $service) {}

    public function index(Request $request)
    {
        $filters = $request->validate([
            'active' => ['nullable','in:0,1'],
            'q'      => ['nullable','string','max:120'],
        ]);

        $page = $this->service->listTemplates($filters, perPage: 20);

        return view('admin.mail.templates.index', [
            'templates' => $page,
            'filters' => $filters,
            'skins' => $this->service->getSkinOptions(),
        ]);
    }

    public function create()
    {
        return view('admin.mail.templates.form', [
            'mode' => 'create',
            'tpl' => (object)[
                'id'=>null,'code'=>'','title'=>'','description'=>'',
                'skin_key'=>'hero','subject'=>'','body'=>'',
                'hero_image_url'=>'','cta_label'=>'','cta_url'=>'','is_active'=>1,
            ],
            'skins' => $this->service->getSkinOptions(),
        ]);
    }

    public function store(Request $request)
    {
        $data = $this->validateTemplate($request, isCreate: true);
        $adminId = (int)auth('admin')->id();

        $res = $this->service->createTemplate($adminId, $data);
        if (!$res['ok']) return back()->with('toast',['type'=>'danger','title'=>'실패','message'=>$res['message']])->withInput();

        return redirect()->route('admin.mail.templates.index')->with('toast',['type'=>'success','title'=>'완료','message'=>'템플릿을 생성했습니다.']);
    }

    public function edit(int $id)
    {
        $tpl = $this->service->getTemplate($id);
        if (!$tpl) abort(404);

        return view('admin.mail.templates.form', [
            'mode' => 'edit',
            'tpl' => $tpl,
            'skins' => $this->service->getSkinOptions(),
        ]);
    }

    public function update(Request $request, int $id)
    {
        $data = $this->validateTemplate($request, isCreate: false);
        $adminId = (int)auth('admin')->id();

        $res = $this->service->updateTemplate($adminId, $id, $data);
        if (!$res['ok']) return back()->with('toast',['type'=>'danger','title'=>'실패','message'=>$res['message']])->withInput();

        return redirect()->route('admin.mail.templates.index')->with('toast',['type'=>'success','title'=>'완료','message'=>'템플릿을 수정했습니다.']);
    }

    private function validateTemplate(Request $request, bool $isCreate): array
    {
        $rules = [
            'skin_key' => ['required','in:hero,newsletter,minimal,clean,dark'],
            'title' => ['required','string','max:120'],
            'description' => ['nullable','string','max:255'],
            'subject' => ['required','string','max:190'],
            'body' => ['required','string','max:20000'],
            'hero_image_url' => ['nullable','string','max:500'],
            'cta_label' => ['nullable','string','max:80'],
            'cta_url' => ['nullable','string','max:500'],
            'is_active' => ['nullable','in:1'],
        ];

        if ($isCreate) {
            $rules['code'] = ['required','string','min:3','max:60','regex:/^[a-zA-Z0-9_-]+$/'];
        }

        return $request->validate($rules);
    }
}