<?php

namespace App\Http\Controllers;

use App\Models\GameBet;
use App\Models\User;
use App\Models\UserAchievement;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;
use Inertia\Inertia;

class TrophyController extends Controller
{
    /**
     * All available achievements with their unlock conditions (for display).
     */
    public static array $definitions = [
        'first_bet'        => ['title' => 'First Bet',       'desc' => 'Place your very first bet.',             'icon' => '🎲'],
        'first_win'        => ['title' => 'First Win',       'desc' => 'Win your first game.',                  'icon' => '🏆'],
        'big_winner'       => ['title' => 'Big Winner',      'desc' => 'Land a 10× or higher multiplier.',      'icon' => '💥'],
        'high_roller'      => ['title' => 'High Roller',     'desc' => 'Wager 100+ BTX in total.',              'icon' => '💎'],
        'frequent_player'  => ['title' => 'Frequent Player', 'desc' => 'Place 50+ bets.',                       'icon' => '🔥'],
        'hundred_bets'     => ['title' => 'Centurion',       'desc' => 'Place 100+ bets.',                      'icon' => '⚡'],
        'vault_user'       => ['title' => 'Vault Guardian',  'desc' => 'Make your first vault deposit.',        'icon' => '🔒'],
        'vip_level2'       => ['title' => 'Rising Star',     'desc' => 'Reach VIP Level 2.',                    'icon' => '⭐'],
        'vip_level5'       => ['title' => 'Elite',           'desc' => 'Reach VIP Level 5.',                    'icon' => '👑'],
        'guild_member'     => ['title' => 'Team Player',     'desc' => 'Join a guild.',                         'icon' => '🛡️'],
        'promo_user'       => ['title' => 'Promo Hunter',    'desc' => 'Redeem your first promo code.',         'icon' => '🎁'],
    ];

    /**
     * Trophy room page — show user's achievements + locked ones.
     */
    public function index(Request $request)
    {
        $user = Auth::user();
        abort_unless($user, 403);

        // Sync achievements before showing
        $this->syncAchievements($user);

        $unlocked = UserAchievement::where('user_id', $user->id)
            ->pluck('unlocked_at', 'achievement_key');

        $achievements = [];
        foreach (self::$definitions as $key => $def) {
            $achievements[] = [
                'key'          => $key,
                'title'        => $def['title'],
                'description'  => $def['desc'],
                'icon'         => $def['icon'],
                'unlocked'     => isset($unlocked[$key]),
                'unlocked_at'  => isset($unlocked[$key]) ? $unlocked[$key]->toIso8601String() : null,
            ];
        }

        // Sort: unlocked first, then locked
        usort($achievements, fn($a, $b) => ($b['unlocked'] <=> $a['unlocked']));

        return Inertia::render('Trophy', [
            'achievements' => $achievements,
            'total'        => count(self::$definitions),
            'unlocked'     => $unlocked->count(),
        ]);
    }

    /**
     * Trophy room for a specific user (public profiles only).
     */
    public function show(Request $request, string $username)
    {
        $user = User::where('username', $username)->firstOrFail();

        // Only show trophies for public profiles (or own profile)
        if (!$user->is_public && Auth::id() !== $user->id) {
            abort(403, 'This profile is private.');
        }

        $this->syncAchievements($user);

        $unlocked = UserAchievement::where('user_id', $user->id)
            ->pluck('unlocked_at', 'achievement_key');

        $achievements = [];
        foreach (self::$definitions as $key => $def) {
            $achievements[] = [
                'key'         => $key,
                'title'       => $def['title'],
                'description' => $def['desc'],
                'icon'        => $def['icon'],
                'unlocked'    => isset($unlocked[$key]),
                'unlocked_at' => isset($unlocked[$key]) ? $unlocked[$key]->toIso8601String() : null,
            ];
        }

        usort($achievements, fn($a, $b) => ($b['unlocked'] <=> $a['unlocked']));

        return Inertia::render('Trophy', [
            'achievements' => $achievements,
            'total'        => count(self::$definitions),
            'unlocked'     => $unlocked->count(),
            'profileUser'  => ['username' => $user->username, 'avatar' => $user->avatar],
        ]);
    }

    /**
     * Check and unlock achievements for the given user.
     */
    public function syncAchievements(\App\Models\User $user): void
    {
        $bets = GameBet::where('user_id', $user->id);
        $betCount   = $bets->count();
        $totalWager = $bets->sum('wager_amount');
        $maxMulti   = $bets->max('payout_multiplier') ?? 0;
        $hasWin     = $bets->where('payout_amount', '>', 0)->exists();

        $toUnlock = [];

        if ($betCount >= 1)   $toUnlock[] = 'first_bet';
        if ($hasWin)          $toUnlock[] = 'first_win';
        if ($maxMulti >= 10)  $toUnlock[] = 'big_winner';
        if ($totalWager >= 100) $toUnlock[] = 'high_roller';
        if ($betCount >= 50)  $toUnlock[] = 'frequent_player';
        if ($betCount >= 100) $toUnlock[] = 'hundred_bets';
        if ($user->vip_level >= 2) $toUnlock[] = 'vip_level2';
        if ($user->vip_level >= 5) $toUnlock[] = 'vip_level5';
        if ($user->guildMember()->exists()) $toUnlock[] = 'guild_member';

        // Vault usage
        if (\App\Models\WalletTransfer::where('user_id', $user->id)->where('type', 'deposit')->exists()) {
            $toUnlock[] = 'vault_user';
        }
        // Promo usage
        if (\App\Models\PromoUsage::where('user_id', $user->id)->exists()) {
            $toUnlock[] = 'promo_user';
        }

        foreach ($toUnlock as $key) {
            UserAchievement::firstOrCreate(
                ['user_id' => $user->id, 'achievement_key' => $key],
                ['unlocked_at' => now()]
            );
        }
    }
}