<?php

namespace App\Http\Controllers\api;

use App\Http\Controllers\Controller;
use App\Models\User;
use App\Models\UserQuest;
use App\Traits\BaseApiResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class LeagueController extends Controller
{
    use BaseApiResponse;

    /**
     * API 1: User League Stats
     */
    public function stats(Request $request)
    {
        $user = $request->user();

        // Dynamic Level Calculation (Every 500 XP = 1 Level)
        $level = floor($user->xp / 500) + 1;
        $xpToNext = 500 - ($user->xp % 500);
        $progress = ($user->xp % 500) / 500;

        $winRate = $user->duels_played > 0
            ? round(($user->duels_won / $user->duels_played) * 100)
            : 0;

        // Calculate Global Rank Position
        $rankPosition = User::where('xp', '>', $user->xp)->count() + 1;

        $data = [
            'user_id' => $user->id,
            'name' => $user->name ?? 'کاربر',
            'current_level' => $level,
            'rank_name' => $this->getRankName($level),
            'total_xp' => $user->xp,
            'xp_to_next_level' => $xpToNext,
            'progress_percent' => round($progress, 2),
            'win_rate_percent' => $winRate,
            'total_duels' => $user->duels_played,
            'global_rank_position' => $rankPosition
        ];

        return $this->success($data, 'موفق', 'اطلاعات لیگ کاربر دریافت شد');
    }

    /**
     * API 2: Daily Quests
     */
    public function quests(Request $request)
    {
        $user = $request->user();

        // Fetch active quests for today using the new relationship
        $userQuests = $user->activeQuests()->with('quest')->get();

        $formattedQuests = $userQuests->map(function ($uq) {
            return [
                'id' => $uq->id,
                'title' => $uq->quest->title,
                'current_progress' => $uq->current_progress,
                'required_amount' => $uq->quest->required_amount,
                'reward_text' => '+' . $uq->quest->reward_xp . ' XP',
                'is_completed' => $uq->is_completed
            ];
        });

        $expiresIn = now()->endOfDay()->diffInSeconds(now());

        return $this->success([
            'expires_in_seconds' => $expiresIn,
            'quests' => $formattedQuests
        ], 'موفق', 'چالش‌های روزانه دریافت شد');
    }

    /**
     * API 3: League Leaderboard
     */
    public function leaderboard(Request $request)
    {
        $currentUser = $request->user();

        // Get Top 50 Users
        $topUsers = User::orderByDesc('xp')->limit(50)->get(['id', 'name', 'xp']);

        $leaderboard = $topUsers->map(function ($u, $index) use ($currentUser) {
            return [
                'rank' => $index + 1,
                'user_id' => $u->id,
                'name' => $u->name ?? 'کاربر ناشناس',
                'xp' => $u->xp,
                'is_me' => $u->id === $currentUser->id
            ];
        });

        // Current User Data
        $myRank = User::where('xp', '>', $currentUser->xp)->count() + 1;

        $myStats = [
            'rank' => $myRank,
            'user_id' => $currentUser->id,
            'name' => $currentUser->name ?? 'شما',
            'xp' => $currentUser->xp,
            'is_me' => true
        ];

        return $this->success([
            'leaderboard' => $leaderboard,
            'current_user' => $myStats
        ], 'موفق', 'جدول رده‌بندی دریافت شد');
    }

    /**
     * API 4: PvP Matchmaking Entry
     */
    public function matchmake(Request $request)
    {
        $ticketId = 'req_' . Str::random(12);

        return $this->success([
            'matchmaking_ticket_id' => $ticketId,
            'status' => 'searching',
            'websocket_channel' => 'private-matchmaking.' . $ticketId,
            'estimated_wait_seconds' => 15
        ], 'در حال جستجو', 'به صف انتظار دوئل اضافه شدید');
    }

    private function getRankName($level)
    {
        if ($level >= 50) return 'الماس';
        if ($level >= 30) return 'طلا';
        if ($level >= 10) return 'نقره‌ای';
        return 'برنز';
    }
}