<?php
declare(strict_types=1);
namespace ywxapp\model;

use ywxapp\model\BaseModel;

use think\facade\Db;
use think\model\concern\SoftDelete;

/**
 * 充值卡密
 */
class Card extends BaseModel
{
    use SoftDelete;

    protected $name = 'card';
    protected $deleteTime = 'delete_at';
    protected $defaultSoftDelete = 0;

    // 时间戳自动写入
    protected $autoWriteTimestamp = true;
    protected $createTime = 'create_at';
    protected $updateTime = 'update_at';

    // 卡密状态
    const STATUS_UNSOLD = 0; // 未售
    const STATUS_SOLD   = 1; // 已售
    const STATUS_USED   = 2; // 已用（已兑换）

    /**
     * 运行时自愈：确保 card 主表存在（install.sql 为事实源）。
     */
    public static function ensureSchema(): void
    {
        BaseModel::ensureTableFromInstall(BaseModel::currentPrefix(), 'card');
    }

    /**
     * 初始化：自愈建表，避免远程库缺失 wxapp_card 导致 1146。
     */
    protected function initialize()
    {
        parent::initialize();
        self::ensureSchema();
    }

    /**
     * 兑换卡密（会员用卡号+密码充值余额）
     *
     * @param int    $uid     会员ID
     * @param string $cardno  卡号
     * @param string $password 密码
     * @return array ['success'=>bool,'msg'=>string,'data'=>array]
     */
    public static function redeem(int $uid, string $cardno, string $password): array
    {
        if ($uid <= 0 || $cardno === '' || $password === '') {
            return ['success' => false, 'msg' => '参数不完整'];
        }

        $card = self::where('cardno', $cardno)->find();
        if (empty($card)) {
            return ['success' => false, 'msg' => '卡密不存在'];
        }
        if ($card->delete_at > 0) {
            return ['success' => false, 'msg' => '卡密已失效'];
        }
        if ((int)$card->status === self::STATUS_USED) {
            return ['success' => false, 'msg' => '该卡密已被使用'];
        }
        // 密码校验（存储若为明文，按需改为 password_verify）
        if ((string)$card->password !== (string)$password) {
            return ['success' => false, 'msg' => '卡号或密码错误'];
        }

        $amount = (float)$card->amount;
        if ($amount <= 0) {
            return ['success' => false, 'msg' => '卡密面值异常'];
        }

        Db::startTrans();
        try {
            // 1) 卡密标记已用，绑定会员
            $card->status   = self::STATUS_USED;
            $card->use_time = time();
            $card->uid      = $uid;
            $card->save();

            // 2) 会员钱包加余额 + 累计充值（无钱包则自动创建）
            $wallet = Db::name('member_wallets')->where('uid', $uid)->find();
            if (empty($wallet)) {
                Db::name('member_wallets')->insert([
                    'uid'             => $uid,
                    'balance'         => $amount,
                    'total_recharge'  => $amount,
                    'create_at'       => time(),
                    'update_at'       => time(),
                ]);
            } else {
                Db::name('member_wallets')
                    ->where('uid', $uid)
                    ->inc('balance', $amount)
                    ->inc('total_recharge', $amount)
                    ->update(['update_at' => time()]);
            }

            // 3) 充值流水
            Db::name('member_bill')->insert([
                'uid'         => $uid,
                'type'        => 1, // 充值
                'amount'      => $amount,
                'currency'    => 1, // 人民币
                'channel'     => 'card',
                'order_no'    => 'CARD' . date('YmdHis') . $uid . mt_rand(100, 999),
                'status'      => 1, // 成功
                'description' => '卡密充值：' . $cardno,
                'create_at'   => time(),
                'update_at'   => time(),
            ]);

            Db::commit();
            return [
                'success' => true,
                'msg'     => '兑换成功，已充值 ¥' . number_format($amount, 2),
                'data'    => ['amount' => $amount],
            ];
        } catch (\Throwable $e) {
            Db::rollback();
            throw $e;
        }
    }

    /**
     * 批量生成卡密
     *
     * @param int    $count   生成数量
     * @param float  $amount  面值
     * @param string $prefix  卡号前缀（如 YX）
     * @return array 生成的卡号列表
     */
    public static function generateBatch(int $count, float $amount, string $prefix = ''): array
    {
        $count = max(1, min(200, $count)); // 单次上限保护
        $batchNo = date('YmdHis') . mt_rand(1000, 9999);
        $list = [];
        $rows = [];
        for ($i = 0; $i < $count; $i++) {
            $cardno   = ($prefix ?: 'YX') . strtoupper(substr(md5(uniqid((string)mt_rand(), true)), 0, 16));
            $password = strtoupper(substr(md5(uniqid((string)mt_rand(), true)), 0, 8));
            $list[]   = ['cardno' => $cardno, 'password' => $password];
            $rows[]   = [
                'cardno'     => $cardno,
                'password'   => $password,
                'amount'     => $amount,
                'status'     => self::STATUS_UNSOLD,
                'batch_no'   => $batchNo,
                'create_at' => time(),
                'update_at' => time(),
            ];
        }
        self::insertAll($rows);
        return $list;
    }
}