<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\RewardCode;
use App\Services\RewardCodeService;
use Carbon\Carbon;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class RewardCodeController extends Controller
{
    /**
     * Reward code list.
     */
    public function index(Request $request)
    {
        $query = RewardCode::query();

        if ($code = $request->get('code')) {
            $query->where('code', $code);
        }
        if ($status = $request->get('status', null)) {
            $query->where('status', $status);
        }
        if ($expired = $request->get('expired', null)) {
            if ($expired == 1) {
                $query->whereNotNull('expire_at')->where('expire_at', '<', Carbon::now());
            } elseif ($expired == 0) {
                $query->where(function ($q) {
                    $q->whereNull('expire_at')->orWhere('expire_at', '>=', Carbon::now());
                });
            }
        }

        $list = $query->orderByDesc('id')->paginate(20);

        return view('admin.reward_code.index', [
            'list' => $list,
            'code' => $code ?? '',
            'status' => $request->get('status', ''),
            'expired' => $request->get('expired', ''),
        ]);
    }

    /**
     * Create single reward code.
     */
    public function store(Request $request)
    {
        $request->validate([
            'total_amount' => 'required|numeric|min:0.0001',
            'min_amount' => 'required|numeric|min:0.0001',
            'max_amount' => 'required|numeric|min:0.0001',
            'total_count' => 'required|integer|min:1',
            'expire_at' => 'nullable|date',
            'remark' => 'nullable|string|max:255',
        ]);

        $totalAmount = (float)$request->input('total_amount');
        $minAmount = (float)$request->input('min_amount');
        $maxAmount = (float)$request->input('max_amount');
        $totalCount = (int)$request->input('total_count');
        $expireAt = $request->input('expire_at') ? Carbon::parse($request->input('expire_at')) : null;
        $remark = $request->input('remark', '');

        if ($minAmount > $maxAmount) {
            return apiReturnFail('min_amount_gt_max_amount');
        }
        if ($totalAmount < $minAmount * $totalCount) {
            return apiReturnFail('total_amount_too_small_for_min');
        }

        $created = null;
        DB::connection('write')->transaction(function () use ($totalAmount, $minAmount, $maxAmount, $totalCount, $expireAt, $remark, &$created) {
            $code = RewardCodeService::generateUniqueCode();
            $created = RewardCode::create([
                'code' => $code,
                'expire_at' => $expireAt,
                'total_amount' => $totalAmount,
                'min_amount' => $minAmount,
                'max_amount' => $maxAmount,
                'total_count' => $totalCount,
                'claimed_count' => 0,
                'claimed_amount' => 0,
                'status' => RewardCodeService::STATUS_ACTIVE,
                'remark' => $remark,
            ]);
        });

        return redirect()->back()->with('success', 'Created, code: ' . $created->code);
    }

    /**
     * Update status (enable/disable).
     */
    public function updateStatus(Request $request, $id)
    {
        $status = (int)$request->input('status', RewardCodeService::STATUS_ACTIVE);
        if (!in_array($status, [RewardCodeService::STATUS_ACTIVE, RewardCodeService::STATUS_INACTIVE])) {
            return apiReturnFail('invalid_status');
        }
        $code = RewardCode::find($id);
        if (!$code) {
            return apiReturnFail('code_not_found');
        }
        $code->status = $status;
        $code->save();
        return apiReturnSuc($code->toArray(), '', '更新成功');
    }

    /**
     * Claim records list.
     */
    public function records(Request $request)
    {
        $code = $request->get('code');
        $userId = (int)$request->input('user_id', 0);
        $gameId = (int)$request->input('game_id', 0);
        $startDate = $request->input('start_date', '');
        $endDate = $request->input('end_date', '');

        $query = DB::connection('write')
            ->table('agent.dbo.reward_code_claims as rcc')
            ->leftJoin('QPAccountsDB.dbo.AccountsInfo as ai', 'rcc.UserID', '=', 'ai.UserID')
            ->select(
                'rcc.id',
                'rcc.code',
                'rcc.UserID',
                'ai.GameID',
                'ai.NickName',
                'rcc.amount',
                'rcc.client_ip',
                'rcc.created_at'
            )
            ->orderBy('rcc.id', 'desc');

        if ($code) {
            $query->where('rcc.code', $code);
        }

        if ($userId > 0) {
            $query->where('rcc.UserID', $userId);
        }

        if ($gameId > 0) {
            $query->where('ai.GameID', $gameId);
        }

        if ($startDate) {
            $query->where('rcc.created_at', '>=', $startDate . ' 00:00:00');
        }
        if ($endDate) {
            $query->where('rcc.created_at', '<=', $endDate . ' 23:59:59');
        }

        $list = $query->paginate(20);

        return view('admin.reward_code.history', [
            'list' => $list,
            'code' => $code ?? '',
            'user_id' => $userId,
            'game_id' => $gameId,
            'start_date' => $startDate,
            'end_date' => $endDate,
        ]);
    }
}