<?php

namespace App\Http\Controllers\User;

use App\Http\Controllers\Controller;
use App\Http\Requests\User\SendThankCardRequest;
use App\Http\Requests\User\UpdateProfileRequest;
use App\Http\Requests\User\UpdatePasswordRequest;
use App\DTOs\DashboardDataDto;
use App\Exceptions\ThankCardException;
use App\Services\User\Contracts\UserServiceInterface;
use Carbon\Carbon;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\View\View;

class UserController extends Controller
{
    public function __construct(
        private readonly UserServiceInterface $userService
    ) {}

    /**
     * Display the user dashboard with transaction history, stats, and rankings.
     */
    public function index(Request $request): View
    {
        $selectedMonth = (string) $request->input('month', Carbon::now()->format('Y-m'));
        $user          = Auth::user();

        $administrations = $this->userService->getDashboard($user, $selectedMonth);
        $stats           = $this->userService->getPersonalStats($user, $selectedMonth);

        $receivedRanking = $this->userService->getRankingList('received', $selectedMonth, $user);
        $sentRanking     = $this->userService->getRankingList('sent', $selectedMonth, $user);

        $dashboardData = new DashboardDataDto(
            administrations: $administrations,
            selectedMonth: $selectedMonth,
            user: $user,
            receivedRankers: $receivedRanking['rankers'],
            receivedCurrentUserRankItem: $receivedRanking['currentUserRankItem'],
            sentRankers: $sentRanking['rankers'],
            sentCurrentUserRankItem: $sentRanking['currentUserRankItem'],
            receivedCount: (int) $stats['receivedCount'],
            sentCount: (int) $stats['sentCount'],
            currentRank: (int) $stats['currentRank']
        );

        return view('user.dashboard', $dashboardData->toArray());
    }

    /**
     * Show the form to send thank cards.
     */
    public function sendThankcards(): View
    {
        $users = $this->userService->getOtherActiveUsers(Auth::user());
        return view('user.send', compact('users'));
    }

    /**
     * Store and execute sending thank cards to another user.
     */
    public function storeThankcards(SendThankCardRequest $request): JsonResponse
    {
        try {
            $this->userService->sendThankcards(
                Auth::user(),
                (string) $request->input('receiver'),
                (int) $request->input('amount')
            );
        } catch (ThankCardException $e) {
            return response()->json(['success' => false, 'message' => $e->getMessage()], 422);
        }

        return response()->json(['success' => true, 'message' => __('messages.thank_card_send_success')]);
    }

    /**
     * Show the change password form.
     */
    public function changePasswordForm(): View
    {
        return view('user.change_password');
    }

    /**
     * Handle user password change.
     */
    public function updatePassword(UpdatePasswordRequest $request): RedirectResponse
    {
        $user = Auth::user();
        $this->userService->updatePassword($user, $request->input('password'));

        $route = $user->role == config('constants.ROLE_ADMIN') ? 'admin.dashboard' : 'user.dashboard';
        return redirect()->route($route)->with('success', __('messages.password_change_success'));
    }

    /**
     * Show the edit profile page (avatar & password).
     */
    public function editProfile(): View
    {
        return view('user.edit');
    }

    /**
     * Handle avatar upload and optional password change.
     */
    public function updateProfile(UpdateProfileRequest $request): RedirectResponse
    {
        $user = Auth::user();

        $this->userService->updateProfile(
            $user,
            $request->validated(),
            $request->file('avatar')
        );

        return redirect()->route('user.edit')->with('success', 'Cập nhật hồ sơ thành công');
    }
}