<?php
/**
 * 分销管理控制器
 */

namespace app\admin\controller\order;

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

class Distribution extends Backend
{
    protected array $noNeedLogin = ['*'];

    /**
     * 分销订单列表
     * @return void
     */
    public function index(): void
    {
        $where = [];

        // 分佣产品搜索
        if (!empty($this->request->get('product_name'))) {
            $productName = $this->request->get('product_name');
            $where[] = ['p.name', 'like', '%' . $productName . '%'];
        }

        // 分佣人搜索
        if (!empty($this->request->get('distributor_name'))) {
            $distributorName = $this->request->get('distributor_name');
            $where[] = ['du.name', 'like', '%' . $distributorName . '%'];
        }

        // 购买人搜索
        if (!empty($this->request->get('buyer_name'))) {
            $buyerName = $this->request->get('buyer_name');
            $where[] = ['bu.name', 'like', '%' . $buyerName . '%'];
        }

        // 关联订单号搜索
        if (!empty($this->request->get('order_no'))) {
            $orderNo = $this->request->get('order_no');
            $where[] = ['o.order_no', 'like', '%' . $orderNo . '%'];
        }

        // 状态筛选
        if (!empty($this->request->get('status'))) {
            $status = $this->request->get('status');
            $where['dr.status'] = $status;
        }

        // 创建时间范围筛选
        if (!empty($this->request->get('create_time_range'))) {
            $timeRange = $this->request->get('create_time_range');
            $timeArr = explode(' - ', $timeRange);
            if (count($timeArr) == 2) {
                $startTime = $timeArr[0];
                $endTime = $timeArr[1];
                $where[] = ['dr.create_time', '>=', $startTime . ' 00:00:00'];
                $where[] = ['dr.create_time', '<=', $endTime . ' 23:59:59'];
            }
        }

        // 排序
        $order = [];
        if (!empty($this->request->get('order'))) {
            $order_a = $this->request->get('order');
            $order_a = explode(',', $order_a);
            $order[$order_a[0]] = $order_a[1];
        } else {
            $order['dr.create_time'] = 'desc';
        }

        // 分页
        $page = $this->request->get('page', 1);
        $limit = $this->request->get('limit', 20);

        // 查询分销记录
        $distributionList = Db::name('distribution_record')
            ->alias('dr')
            ->leftJoin('order o', 'dr.order_id = o.id')
            ->leftJoin('product p', 'dr.product_id = p.id')
            ->leftJoin('user_on bu', 'dr.buyer_id = bu.id')
            ->leftJoin('user_on du', 'dr.distributor_id = du.id')
            ->field('
                dr.id,
                o.order_no,
                p.name as commission_product,
                bu.name as g_name,
                du.name as f_name,
                dr.commission_amount,
                dr.create_time,
                dr.status,
                dr.commission_rate
            ')
            ->where($where)
            ->order($order)
            ->paginate([
                'list_rows' => $limit,
                'page' => $page
            ]);

        // 状态转换
        $list = $distributionList->items();
        foreach ($list as &$item) {
            $statusMap = [
                1 => '待结算',
                2 => '已结算',
                3 => '已取消'
            ];
            $item['status_text'] = $statusMap[$item['status']] ?? '未知';
        }

        $this->success('查询成功', [
            'list' => $list,
            'total' => $distributionList->total()
        ]);
    }

    /**
     * 获取分销设置
     * @return void
     */
    public function getSetting(): void
    {
        $setting = Db::name('distribution_setting')
            ->order('id', 'desc')
            ->find();

        if (!$setting) {
            // 如果不存在，创建默认设置
            $defaultSetting = [
                'default_rate' => 15.00,
                'min_withdrawal' => 20.00,
                'max_withdrawal' => 50000.00,
                'withdrawal_fee_rate' => 0.00,
                'update_time' => date('Y-m-d H:i:s')
            ];

            Db::name('distribution_setting')->insert($defaultSetting);
            $setting = $defaultSetting;
        }

        $this->success('获取成功', $setting);
    }

    /**
     * 更新分销设置
     * @return void
     */
    public function updateSetting(): void
    {
        $defaultRate = $this->request->post('default_rate', 15.00);
        $minWithdrawal = $this->request->post('min_withdrawal', 20.00);
        $maxWithdrawal = $this->request->post('max_withdrawal', 50000.00);
        $withdrawalFeeRate = $this->request->post('withdrawal_fee_rate', 0.00);

        if ($defaultRate <= 0 || $defaultRate > 100) {
            $this->error(__('分销佣金比例必须在0-100之间'));
        }

        if ($minWithdrawal <= 0) {
            $this->error(__('最低提现金额必须大于0'));
        }

        if ($maxWithdrawal <= $minWithdrawal) {
            $this->error(__('最高提现金额必须大于最低提现金额'));
        }

        $data = [
            'default_rate' => $defaultRate,
            'min_withdrawal' => $minWithdrawal,
            'max_withdrawal' => $maxWithdrawal,
            'withdrawal_fee_rate' => $withdrawalFeeRate,
            'update_time' => date('Y-m-d H:i:s')
        ];

        try {
            // 检查是否已有设置
            $existingSetting = Db::name('distribution_setting')->value('id');
            if ($existingSetting) {
                // 更新
                $result = Db::name('distribution_setting')
                    ->where('id', $existingSetting)
                    ->update($data);
            } else {
                // 新增
                $result = Db::name('distribution_setting')
                    ->insert($data);
            }


        } catch (\Exception $e) {
            $this->error('操作失败: ' . $e->getMessage());
        }
        if ($result) {
            $this->success('更新成功');
        } else {
            $this->error(__('更新失败'));
        }
    }

    /**
     * 手动结算分销佣金
     * @return void
     */
    public function settleCommission(): void
    {
        $id = $this->request->post('id');

        if (empty($id)) {
            $this->error(__('参数错误'));
        }

        try {
            Db::startTrans();

            // 获取分销记录
            $distributionRecord = Db::name('distribution_record')
                ->where('id', $id)
                ->lock(true)
                ->find();

            if (!$distributionRecord) {
                throw new \Exception('分销记录不存在');
            }

            if ($distributionRecord['status'] != 1) {
                throw new \Exception('只有待结算的记录才能结算');
            }

            // 更新分销记录状态
            $updateResult = Db::name('distribution_record')
                ->where('id', $id)
                ->update([
                    'status' => 2,
                    'settle_time' => date('Y-m-d H:i:s')
                ]);

            if (!$updateResult) {
                throw new \Exception('更新分销记录失败');
            }

            // 更新用户佣金
            $userCommission = Db::name('user_commission')
                ->where('user_id', $distributionRecord['distributor_id'])
                ->lock(true)
                ->find();

            if ($userCommission) {
                // 更新现有记录
                $commissionResult = Db::name('user_commission')
                    ->where('user_id', $distributionRecord['distributor_id'])
                    ->update([
                        'total_commission' => Db::raw('total_commission + ' . $distributionRecord['commission_amount']),
                        'current_commission' => Db::raw('current_commission + ' . $distributionRecord['commission_amount']),
                        'update_time' => date('Y-m-d H:i:s')
                    ]);
            } else {
                // 创建新记录
                $commissionResult = Db::name('user_commission')
                    ->insert([
                        'user_id' => $distributionRecord['distributor_id'],
                        'total_commission' => $distributionRecord['commission_amount'],
                        'current_commission' => $distributionRecord['commission_amount'],
                        'promotion_link' => 'xxxx.com?from=' . $distributionRecord['distributor_id'],
                        'update_time' => date('Y-m-d H:i:s')
                    ]);
            }

            if (!$commissionResult) {
                throw new \Exception('更新用户佣金失败');
            }

            Db::commit();
            $this->success('结算成功');

        } catch (\Exception $e) {
            Db::rollback();
            $this->error('结算失败: ' . $e->getMessage());
        }
    }

    /**
     * 批量结算分销佣金
     * @return void
     */
    public function batchSettle(): void
    {
        $ids = $this->request->post('ids');

        if (empty($ids)) {
            $this->error(__('参数错误'));
        }

        if (!is_array($ids)) {
            $ids = explode(',', $ids);
        }

        $successCount = 0;
        $failCount = 0;
        $messages = [];

        foreach ($ids as $id) {
            try {
                Db::startTrans();

                $distributionRecord = Db::name('distribution_record')
                    ->where('id', $id)
                    ->lock(true)
                    ->find();

                if (!$distributionRecord) {
                    throw new \Exception('分销记录不存在');
                }

                if ($distributionRecord['status'] != 1) {
                    throw new \Exception('只有待结算的记录才能结算');
                }

                // 更新分销记录状态
                Db::name('distribution_record')
                    ->where('id', $id)
                    ->update([
                        'status' => 2,
                        'settle_time' => date('Y-m-d H:i:s')
                    ]);

                // 更新用户佣金
                $userCommission = Db::name('user_commission')
                    ->where('user_id', $distributionRecord['distributor_id'])
                    ->lock(true)
                    ->find();

                if ($userCommission) {
                    Db::name('user_commission')
                        ->where('user_id', $distributionRecord['distributor_id'])
                        ->update([
                            'total_commission' => Db::raw('total_commission + ' . $distributionRecord['commission_amount']),
                            'current_commission' => Db::raw('current_commission + ' . $distributionRecord['commission_amount']),
                            'update_time' => date('Y-m-d H:i:s')
                        ]);
                } else {
                    Db::name('user_commission')
                        ->insert([
                            'user_id' => $distributionRecord['distributor_id'],
                            'total_commission' => $distributionRecord['commission_amount'],
                            'current_commission' => $distributionRecord['commission_amount'],
                            'promotion_link' => 'xxxx.com?from=' . $distributionRecord['distributor_id'],
                            'update_time' => date('Y-m-d H:i:s')
                        ]);
                }

                Db::commit();
                $successCount++;

            } catch (\Exception $e) {
                Db::rollback();
                $failCount++;
                $messages[] = "记录ID {$id}: " . $e->getMessage();
            }
        }

        $message = "结算完成，成功: {$successCount}条，失败: {$failCount}条";
        if (!empty($messages)) {
            $message .= "。失败原因：" . implode('; ', $messages);
        }

        $this->success($message);
    }

    /**
     * 分销统计
     * @return void
     */
    public function statistics(): void
    {
        // 总分销记录数
        $totalCount = Db::name('distribution_record')->count();

        // 待结算记录数
        $pendingCount = Db::name('distribution_record')
            ->where('status', 1)
            ->count();

        // 已结算记录数
        $settledCount = Db::name('distribution_record')
            ->where('status', 2)
            ->count();

        // 总分销金额
        $totalCommission = Db::name('distribution_record')
            ->where('status', 2)
            ->sum('commission_amount');

        // 今日分销统计
        $todayStart = date('Y-m-d 00:00:00');
        $todayEnd = date('Y-m-d 23:59:59');
        $todayCount = Db::name('distribution_record')
            ->whereBetween('create_time', [$todayStart, $todayEnd])
            ->count();

        $todayCommission = Db::name('distribution_record')
            ->whereBetween('create_time', [$todayStart, $todayEnd])
            ->sum('commission_amount');

        // 分销人数统计
        $distributorCount = Db::name('distribution_record')
            ->distinct(true)
            ->field('distributor_id')
            ->count();

        $stats = [
            'total_count' => $totalCount,
            'pending_count' => $pendingCount,
            'settled_count' => $settledCount,
            'total_commission' => $totalCommission ?? 0,
            'today_count' => $todayCount,
            'today_commission' => $todayCommission ?? 0,
            'distributor_count' => $distributorCount
        ];

        $this->success('获取成功', $stats);
    }

    /**
     * 获取分销状态选项
     * @return void
     */
    public function statusOptions(): void
    {
        $options = [
            ['value' => 1, 'label' => '待结算'],
            ['value' => 2, 'label' => '已结算'],
            ['value' => 3, 'label' => '已取消']
        ];

        $this->success('获取成功', $options);
    }
}