<?php

namespace app\admin\controller\fc;

use app\common\controller\Backend;
use think\Db;

/**
 * 同城-提现
 *
 * @icon fa fa-circle-o
 */
class Withdraw extends Backend
{

    /**
     * FcWithdraw模型对象
     * @var \app\admin\model\FcWithdraw
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\FcWithdraw;
        $this->view->assign("statusList", $this->model->getStatusList());
    }


    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */

    /**
     * 提现打款/驳回
     */
    public function pay()
    {
        $ids = $this->request->post('ids');
        $op = $this->request->post('op');
        $reason = $this->request->post('reason', '');
        if (!in_array($op, ['pay', 'reject'])) {
            $this->error('操作类型错误');
        }
        if ($op === 'reject' && trim((string)$reason) === '') {
            $this->error('驳回需填写原因');
        }
        $ids = is_array($ids) ? $ids : explode(',', (string)$ids);
        $ids = array_filter($ids);
        if (!$ids) {
            $this->error('请选择要操作的提现记录');
        }
        $withdraws = Db::name('fc_withdraw')->where('id', 'in', $ids)->select();
        if (!$withdraws) {
            $this->error('提现记录不存在');
        }

        $done = 0;
        $pending = 0;
        $failed = 0;
        $errors = [];

        if ($op === 'reject') {
            try {
                Db::transaction(function () use ($withdraws, $reason, &$done) {
                    foreach ($withdraws as $withdraw) {
                        // 行锁 + 状态校验：已处理的记录不会被二次驳回
                        $locked = Db::name('fc_withdraw')->where('id', $withdraw['id'])->lock(true)->find();
                        if (!$locked || (string)$locked['status'] !== 'auditing') {
                            continue;
                        }
                        $done++;

                        Db::name('fc_withdraw')->where('id', $locked['id'])->update([
                            'status'     => 'rejected',
                            'reason'     => $reason,
                            'updatetime' => time(),
                        ]);
                        Db::name('fc_message')->insert([
                            'user_id'    => $locked['user_id'],
                            'type'       => 'system',
                            'title'      => '提现驳回',
                            'content'    => '您的提现申请「' . $locked['withdraw_no'] . '」被驳回' . ($reason ? '，原因：' . $reason : ''),
                            'isread'     => 0,
                            'createtime' => time(),
                        ]);
                    }
                });
            } catch (\Throwable $e) {
                $this->error('操作失败：' . $e->getMessage());
            }

            if ($done === 0) {
                $this->error('选中的提现记录均已处理，请刷新后重试');
            }
            $this->success('驳回成功（' . $done . ' 条）');
        }

        // 通过 → 逐笔发起微信商家转账（外部调用不能放在事务里）
        foreach ($withdraws as $withdraw) {
            if ((string)$withdraw['status'] !== 'auditing') {
                continue;
            }
            try {
                $res = \app\common\library\WxTransfer::approve((int)$withdraw['id']);
                $done++;
                if ($res['withdrawState'] === 'paying') {
                    $pending++;
                } elseif ($res['withdrawState'] === 'failed') {
                    $failed++;
                }
            } catch (\Throwable $e) {
                $errors[] = $withdraw['withdraw_no'] . '：' . $e->getMessage();
            }
        }

        if ($done === 0) {
            $this->error('转账失败：' . implode('；', $errors));
        }

        $msg = '已发起转账 ' . $done . ' 笔';
        if ($pending > 0) {
            $msg .= '（其中 ' . $pending . ' 笔等待用户在微信确认收款）';
        }
        if ($failed > 0) {
            $msg .= '，' . $failed . ' 笔转账失败';
        }
        if ($errors) {
            $msg .= '；失败 ' . count($errors) . ' 笔：' . implode('；', $errors);
        }
        $this->success($msg);
    }


}