<?php
/**
 * Niushop商城系统 - 团队十年电商经验汇集巨献!
 * =========================================================
 * Copy right 2019-2029 杭州牛之云科技有限公司, 保留所有权利。
 * ----------------------------------------------
 * 官方网址: https://www.niushop.com
 * =========================================================
 */

namespace addon\discount\model;

use app\model\BaseModel;
use app\model\goods\Goods;
use app\model\system\Cron;
use think\facade\Db;

/**
 * 限时折扣
 */
class Discount extends BaseModel
{
    private $discount_status = [
        0 => '未开始',
        1 => '进行中',
        2 => '已结束',
        -1 => '已关闭（手动）',
    ];

    /**
     * 限时折扣状态
     */
    public function getDiscountStatus()
    {
        return $this->discount_status;
    }

    /**
     * 添加限时折扣活动
     * @param unknown $data
     */
    public function addDiscount($data)
    {

        $cron = new Cron();
        $discount_goods = $data[ 'goods_data' ];

        foreach ($discount_goods as $k => $v) {
            //查询是否存在活动
            $promotion_info = Db::name('promotion_discount')->where([
                [ 'start_time|end_time', 'between', [ $data[ 'start_time' ], $data[ 'end_time' ] ] ],
                [ 'site_id', '=', $data[ 'site_id' ] ],
                [ 'status', 'in', '0,1' ],
                [ 'goods_id', '=', $v[ 'goods_id' ] ]
            ])->find();
            if (!empty($promotion_info)) {
                return $this->error('', "有商品在当前时间段内存在限时折扣活动");
            }

            $promotion_info = Db::name('promotion_discount')->where([ [ 'start_time', '<', $data[ 'start_time' ] ], [ 'end_time', '>', $data[ 'end_time' ] ], [ 'site_id', '=', $data[ 'site_id' ] ], [ 'status', 'in', '0,1' ], [ 'goods_id', '=', $v[ 'goods_id' ] ] ])->find();
            if (!empty($promotion_info)) {
                return $this->error('', "有商品在当前时间段内存在限时折扣活动");
            }
        }

        model('promotion_discount')->startTrans();
        try {

            foreach ($discount_goods as $key => $item) {
                $discount_data = [
                    'site_id' => $data[ 'site_id' ],
                    'discount_name' => $data[ 'discount_name' ],
                    'remark' => $data[ 'remark' ],
                    'start_time' => $data[ 'start_time' ],
                    'end_time' => $data[ 'end_time' ],
                    'create_time' => time(),
                    'goods_id' => $item[ 'goods_id' ],
                    'discount_price' => $item[ 'sku_list' ][ 0 ][ 'discount_price' ]
                ];

                if ($discount_data[ 'start_time' ] <= time()) {
                    $discount_data[ 'status' ] = 1;//直接启动
                    $discount_id = model('promotion_discount')->add($discount_data);
                    $cron->addCron(1, 0, "限时折扣关闭", "CloseDiscount", $discount_data[ 'end_time' ], $discount_id);
                } else {
                    $discount_data[ 'status' ] = 0;
                    $discount_id = model('promotion_discount')->add($discount_data);
                    $cron->addCron(1, 0, "限时折扣开启", "OpenDiscount", $data[ 'start_time' ], $discount_id);
                    $cron->addCron(1, 0, "限时折扣关闭", "CloseDiscount", $data[ 'end_time' ], $discount_id);
                }

                $goods = new Goods();
                foreach ($item[ 'sku_list' ] as $k => $v) {
                    $sku_info = model('goods_sku')->getInfo([ [ 'sku_id', '=', $v[ 'sku_id' ] ], [ 'is_delete', '=', 0 ], [ 'goods_state', '=', 1 ] ], 'goods_id, sku_id, sku_name,price,sku_image');
                    $discount_goods_count = model('promotion_discount_goods')->getCount([ 'discount_id' => $discount_id, 'goods_id' => $sku_info[ 'goods_id' ], 'sku_id' => $sku_info[ 'sku_id' ] ]);
                    if (!empty($sku_info) && $discount_goods_count == 0) {
                        $discount_goods_data = [
                            'discount_id' => $discount_id,
                            'start_time' => $discount_data[ 'start_time' ],
                            'end_time' => $discount_data[ 'end_time' ],
                            'goods_id' => $sku_info[ 'goods_id' ],
                            'sku_id' => $sku_info[ 'sku_id' ],
                            'price' => $sku_info[ 'price' ],
                            'discount_price' => $v[ 'discount_price' ],
                            'sku_name' => $sku_info[ 'sku_name' ],
                            'sku_image' => $sku_info[ 'sku_image' ]
                        ];
                        model('promotion_discount_goods')->add($discount_goods_data);
                        if ($discount_data[ 'status' ] == 1) {
                            model('goods_sku')->update([ 'promotion_type' => 1, 'discount_price' => $v[ 'discount_price' ], 'start_time' => $discount_data[ 'start_time' ], 'end_time' => $discount_data[ 'end_time' ] ], [ [ 'sku_id', '=', $v[ 'sku_id' ] ] ]);
                        }

                        // 更新营销商品活动标识
                        $goods->modifyPromotionAddon($sku_info[ 'goods_id' ], [ 'discount' => $discount_id ]);
                    }
                }
            }

            model('promotion_discount')->commit();
            return $this->success();

        } catch (\Exception $e) {
            model('promotion_discount')->rollback();
            return $this->error('', $e->getMessage());
        }
    }

    /**
     * 修改限时折扣活动
     * @param unknown $data //传输数据(针对已经开始之后活动不能修改时间)
     */
    public function editDiscount($data)
    {
        $discount_id = $data[ 'discount_id' ];

        //针对未开始的活动进行设置
        $cron = new Cron();
        //查询是否存在活动
        $promotion_info = Db::name('promotion_discount')->where([
            [ 'start_time|end_time', 'between', [ $data[ 'start_time' ], $data[ 'end_time' ] ] ],
            [ 'site_id', '=', $data[ 'site_id' ] ],
            [ 'discount_id', '<>', $discount_id ],
            [ 'status', 'in', '0,1' ],
            [ 'goods_id', '=', $data[ 'goods_id' ] ]
        ])->find();
        if (!empty($promotion_info)) {
            return $this->error('', "当前时间段内存在限时折扣活动");
        }
        $promotion_info = Db::name('promotion_discount')->where([
            [ 'start_time', '<', $data[ 'start_time' ] ],
            [ 'end_time', '>', $data[ 'end_time' ] ],
            [ 'site_id', '=', $data[ 'site_id' ] ],
            [ 'discount_id', '<>', $discount_id ],
            [ 'status', 'in', '0,1' ],
            [ 'goods_id', '=', $data[ 'goods_id' ] ]
        ])->find();
        if (!empty($promotion_info)) {
            return $this->error('', "当前时间段内存在限时折扣活动");
        }
        if ($data[ 'start_time' ] <= time()) {
            $sku_list = $data[ 'sku_list' ];
            unset($data[ 'sku_list' ]);
            if ($sku_list) $data[ 'discount_price' ] = $sku_list[ 0 ][ 'discount_price' ];
            $data[ 'status' ] = 1;//直接启动
            $res = model('promotion_discount')->update($data, [ [ 'discount_id', '=', $discount_id ], [ 'site_id', '=', $data[ 'site_id' ] ] ]);

            model('promotion_discount_goods')->delete([ [ 'discount_id', '=', $discount_id ] ]);

            foreach ($sku_list as $k => $v) {
                $sku_info = model('goods_sku')->getInfo([ [ 'sku_id', '=', $v[ 'sku_id' ] ] ], 'goods_id, sku_id, sku_name,price,sku_image');
                if (!empty($sku_info)) {
                    $discount_goods_data = [
                        'discount_id' => $discount_id,
                        'start_time' => $data[ 'start_time' ],
                        'end_time' => $data[ 'end_time' ],
                        'goods_id' => $sku_info[ 'goods_id' ],
                        'sku_id' => $sku_info[ 'sku_id' ],
                        'price' => $sku_info[ 'price' ],
                        'discount_price' => $v[ 'discount_price' ],
                        'sku_name' => $sku_info[ 'sku_name' ],
                        'sku_image' => $sku_info[ 'sku_image' ]
                    ];
                    model('promotion_discount_goods')->add($discount_goods_data);
                    model('goods_sku')->update([ 'promotion_type' => 1, 'discount_price' => $v[ 'discount_price' ], 'start_time' => $data[ 'start_time' ], 'end_time' => $data[ 'end_time' ] ], [ [ 'sku_id', '=', $v[ 'sku_id' ] ] ]);
                }
            }
            if (!empty($data[ 'cancel_sku_list' ])) {
                foreach ($data[ 'cancel_sku_list' ] as $kk => $vv) {
                    $sku_info = model('goods_sku')->getInfo([ [ 'sku_id', '=', $vv[ 'sku_id' ] ] ], 'goods_id, sku_id, sku_name,price,sku_image');
                    model('goods_sku')->update([ 'promotion_type' => 1, 'discount_price' => $sku_info [ 'price' ] ], [ [ 'sku_id', '=', $sku_info [ 'sku_id' ] ] ]);
                }
            }

            //活动商品启动
            $this->cronCloseDiscount($discount_id);
            $this->cronOpenDiscount($discount_id);
            $cron->deleteCron([ [ 'event', '=', 'OpenDiscount' ], [ 'relate_id', '=', $discount_id ] ]);
            $cron->deleteCron([ [ 'event', '=', 'CloseDiscount' ], [ 'relate_id', '=', $discount_id ] ]);
            $cron->addCron(1, 0, "限时折扣关闭", "CloseDiscount", $data[ 'end_time' ], $discount_id);

        } else {
            $sku_list = $data[ 'sku_list' ];
            unset($data[ 'sku_list' ]);
            unset($data[ 'discount_id' ]);
            if ($sku_list) $data[ 'discount_price' ] = $sku_list[ 0 ][ 'discount_price' ];

            $res = model('promotion_discount')->update($data, [ [ 'discount_id', '=', $discount_id ], [ 'site_id', '=', $data[ 'site_id' ] ] ]);
            model('promotion_discount_goods')->delete([ [ 'discount_id', '=', $discount_id ] ]);
            foreach ($sku_list as $k => $v) {
                $sku_info = model('goods_sku')->getInfo([ [ 'sku_id', '=', $v[ 'sku_id' ] ] ], 'goods_id, sku_id, sku_name,price,sku_image');
                if (!empty($sku_info)) {
                    $discount_goods_data = [
                        'discount_id' => $discount_id,
                        'start_time' => $data[ 'start_time' ],
                        'end_time' => $data[ 'end_time' ],
                        'goods_id' => $sku_info[ 'goods_id' ],
                        'sku_id' => $sku_info[ 'sku_id' ],
                        'price' => $sku_info[ 'price' ],
                        'discount_price' => $v[ 'discount_price' ],
                        'sku_name' => $sku_info[ 'sku_name' ],
                        'sku_image' => $sku_info[ 'sku_image' ]
                    ];

                    model('promotion_discount_goods')->add($discount_goods_data);
                }
            }

            $cron->deleteCron([ [ 'event', '=', 'OpenDiscount' ], [ 'relate_id', '=', $discount_id ] ]);
            $cron->deleteCron([ [ 'event', '=', 'CloseDiscount' ], [ 'relate_id', '=', $discount_id ] ]);
            $cron->addCron(1, 0, "限时折扣开启", "OpenDiscount", $data[ 'start_time' ], $discount_id);
            $cron->addCron(1, 0, "限时折扣关闭", "CloseDiscount", $data[ 'end_time' ], $discount_id);
        }

        return $this->success($res);
    }

    /**
     * 手动关闭限时折扣
     * @param unknown $discount_id
     * @param unknown $site_id
     * @return multitype:string
     */
    public function closeDiscount($discount_id, $site_id)
    {
        $discount_info = model('promotion_discount')->getInfo([ [ 'discount_id', '=', $discount_id ], [ 'site_id', '=', $site_id ] ], 'start_time,status');
        if (!empty($discount_info)) {
            //针对正在进行的活动
            if ($discount_info[ 'status' ] == 1) {
                $res = model('promotion_discount')->update([ 'status' => -1 ], [ [ 'discount_id', '=', $discount_id ] ]);

                // 删除商品营销活动标识
                $this->deleteGoodsPromotionAddon($discount_id);

                //商品恢复原价
                Db::name('promotion_discount_goods')->alias('npdg')
                    ->leftjoin("goods_sku ngs", "npdg.sku_id = ngs.sku_id")
                    ->where([ [ 'npdg.discount_id', '=', $discount_id ] ])
                    ->update(
                        [
                            "ngs.discount_price" => Db::raw('ngs.price'),
                            "ngs.promotion_type" => 0,
                            "ngs.start_time" => 0,
                            "ngs.end_time" => 0
                        ]);
                return $this->success($res);
            } else {
                return $this->error("", "正在进行的活动才能进行关闭操作");
            }
        } else {
            return $this->error("", "活动不存在");
        }
    }

    /**
     * 启动限时折扣事件
     * @param unknown $discount_id
     */
    public function cronOpenDiscount($discount_id)
    {
        $discount_info = model('promotion_discount')->getInfo([ [ 'discount_id', '=', $discount_id ] ], 'start_time,status');
        if (!empty($discount_info)) {
            if ($discount_info[ 'start_time' ] <= time() && $discount_info[ 'status' ] != 1) {
                $res = model('promotion_discount')->update([ 'status' => 1 ], [ [ 'discount_id', '=', $discount_id ] ]);

                // 删除商品营销活动标识
                $this->deleteGoodsPromotionAddon($discount_id);
                Db::name('promotion_discount_goods')->alias('npdg')
                    ->leftjoin("goods_sku ngs", "npdg.sku_id = ngs.sku_id")
                    ->where([ [ 'npdg.discount_id', '=', $discount_id ] ])
                    ->update(
                        [
                            "ngs.discount_price" => Db::raw('npdg.discount_price'),
                            "ngs.promotion_type" => 1,
                            "ngs.start_time" => Db::raw('npdg.start_time'),
                            "ngs.end_time" => Db::raw('npdg.end_time')
                        ]);
                return $this->success($res);
            } else {
                return $this->error("", "限时折扣活动已开启或者关闭");
            }

        } else {
            return $this->error("", "限时折扣活动不存在");
        }
    }

    /**
     * 结束限时折扣事件
     * @param unknown $discount_id
     */
    public function cronCloseDiscount($discount_id)
    {
        $discount_info = model('promotion_discount')->getInfo([ [ 'discount_id', '=', $discount_id ] ], 'start_time,status');
        if (!empty($discount_info)) {
            //针对正在进行的活动
            if ($discount_info[ 'status' ] == 1) {
                $res = model('promotion_discount')->update([ 'status' => 2 ], [ [ 'discount_id', '=', $discount_id ] ]);

                // 删除商品营销活动标识
                $this->deleteGoodsPromotionAddon($discount_id);

                //商品恢复原价
                Db::name('promotion_discount_goods')->alias('npdg')
                    ->leftjoin("goods_sku ngs", "npdg.sku_id = ngs.sku_id")
                    ->where([ [ 'npdg.discount_id', '=', $discount_id ] ])
                    ->update(
                        [
                            "ngs.discount_price" => Db::raw('ngs.price'),
                            "ngs.promotion_type" => 0,
                            "ngs.start_time" => 0,
                            "ngs.end_time" => 0
                        ]);
                return $this->success($res);
            } else {
                return $this->error("", "正在进行的活动才能进行关闭操作");
            }
        } else {
            return $this->error("", "活动不存在");
        }
    }

    /**
     * 删除限时折扣活动(针对未进行中)
     * @param unknown $discount_id
     */
    public function deleteDiscount($discount_id, $site_id)
    {
        $res = model('promotion_discount')->delete([ [ 'discount_id', '=', $discount_id ], [ 'site_id', '=', $site_id ], [ 'status', '<>', 1 ] ]);
        if ($res) {
            // 删除商品营销活动标识
            $this->deleteGoodsPromotionAddon($discount_id);
            model('promotion_discount_goods')->delete([ [ 'discount_id', '=', $discount_id ] ]);
            return $this->success($res);
        } else {
            return $this->error('', "正在进行中或者权限不足");
        }
    }

    /**
     * 删除限时折扣商品
     */
    public function deleteDiscountGoods($discount_id, $sku_id, $site_id)
    {
        $discount_info = model('promotion_discount')->getInfo([ [ 'discount_id', '=', $discount_id ], [ 'site_id', '=', $site_id ] ], 'status');
        if (!empty($discount_info)) {

            // 删除商品营销活动标识
            $this->deleteGoodsPromotionAddon($discount_id, $sku_id);

            $res = model('promotion_discount_goods')->delete([ [ 'discount_id', '=', $discount_id ], [ 'sku_id', '=', $sku_id ] ]);
            if ($res && $discount_info[ 'status' ] == 1) {
                model('goods_sku')->update(
                    [
                        "discount_price" => Db::raw('price'),
                        "promotion_type" => 0,
                        "start_time" => 0,
                        "end_time" => 0,
                    ],
                    [ [ 'sku_id', '=', $sku_id ] ]);
            }
            return $this->success($res);
        } else {
            return $this->error('', '活动不存在');
        }
    }

    /**
     * 获取限时折扣基础信息
     */
    public function getDiscountInfo($discount_id, $site_id)
    {
        $info = model('promotion_discount')->getInfo([ [ 'discount_id', '=', $discount_id ], [ 'site_id', '=', $site_id ] ], 'discount_id, site_id, discount_name, status, remark, start_time, end_time, create_time, modify_time');
        return $this->success($info);
    }

    /**
     * 获取限时折扣详情
     */
    public function getDiscountDetail($discount_id, $site_id)
    {
        $info = model('promotion_discount')->getInfo([ [ 'discount_id', '=', $discount_id ], [ 'site_id', '=', $site_id ] ], 'goods_id,discount_id, site_id, discount_name, status, remark, start_time, end_time, create_time, modify_time');

        $goods_sku = model('goods_sku')->getList([ [ 'goods_id', '=', $info[ 'goods_id' ] ] ], 'goods_name, stock, goods_id, sku_id, sku_name,price,sku_image');

        $discount_goods = model("promotion_discount_goods")->getList([ [ 'goods_id', '=', $info[ 'goods_id' ] ], [ 'discount_id', '=', $info[ 'discount_id' ] ] ], '*');
        foreach ($goods_sku as $k => $v) {
            $goods_sku[ $k ][ 'stock' ] = numberFormat($goods_sku[ $k ][ 'stock' ]);
            $goods_sku[ $k ][ 'is_select' ] = 0;
            $goods_sku[ $k ][ 'discount_price' ] = $v[ 'price' ];
            foreach ($discount_goods as $key => $val) {
                if ($val[ 'sku_id' ] == $v[ 'sku_id' ]) {
                    $goods_sku[ $k ][ 'is_select' ] = 1;
                    $goods_sku[ $k ][ 'discount_price' ] = $val[ 'discount_price' ];
                }
            }
        }

        $info[ 'goods_sku' ] = $goods_sku;
        $info[ 'discount_goods' ] = $discount_goods;
        return $this->success($info);
    }

    public function getDiscountGoods($discount_id)
    {
        $list = model('promotion_discount_goods')->getList([ [ 'discount_id', '=', $discount_id ] ], 'id, discount_id, start_time, end_time, goods_id, sku_id, price, discount_price, sku_name, sku_image', 'id desc');
        return $this->success($list);
    }

    /**
     * 获取限时折扣信息
     * @param $condition
     * @param string $field
     * @return array
     */
    public function getDiscountGoodsInfo($condition, $field = '*')
    {
        $alias = 'pdg';
        $join = [
            [
                'promotion_discount pd',
                'pd.discount_id = pdg.discount_id',
                'inner'
            ],
        ];
        $info = model('promotion_discount_goods')->getInfo($condition, $field, $alias, $join);
        return $this->success($info);
    }

    /**
     * 获取参与限时折扣商品分页列表
     * @param array $condition
     * @param int $page
     * @param int $list_rows
     * @param string $field
     * @param string $order
     * @return array
     */
    public function getDiscountGoodsPageList($condition = [], $page = 1, $list_rows = PAGE_LIST_ROWS, $field = 'pdg.id,pdg.discount_id,pdg.start_time,pdg.end_time,pdg.goods_id,pdg.sku_id,pdg.discount_price,pdg.sku_name,pdg.sku_image,sku.price', $order = 'pdg.id desc')
    {
        $alias = 'pdg';
        $join = [
            [ 'goods_sku sku', 'sku.sku_id=pdg.sku_id', 'inner' ]
        ];
        $list = model('promotion_discount_goods')->pageList($condition, $field, $order, $page, $list_rows, $alias, $join);
        return $this->success($list);
    }

    /**
     * 获取限时折扣商品详情
     * @param $discount_id
     * @param $goods_id
     * @param $sku_id
     * @return array
     */
    public function getDiscountGoodsDetail($discount_id, $goods_id, $sku_id)
    {
        $alias = 'pd';
        $join = [
            [ 'promotion_discount_goods pdg', 'pd.discount_id=pdg.discount_id', 'inner' ]
        ];
        $condition = [
            [ 'pd.discount_id', '=', $discount_id ],
            [ 'pd.status', '=', 1 ],
            [ 'pdg.goods_id', '=', $goods_id ],
            [ 'pdg.sku_id', '=', $sku_id ],
        ];

        $info = model('promotion_discount')->getInfo($condition, 'pd.discount_id,pd.site_id,pd.discount_name,pdg.goods_id,pdg.sku_id,pdg.price,pdg.discount_price', $alias, $join);
        return $this->success($info);
    }

    /**
     * 获取限时折扣列表
     * @param array $condition
     * @param string $field
     * @param string $order
     * @param string $limit
     */
    public function getDiscountList($condition = [], $field = '*', $order = '', $limit = null)
    {
        $list = model('promotion_discount')->getList($condition, $field, $order, '', '', '', $limit);
        return $this->success($list);
    }

    /**
     * 获取限时折扣分页列表
     * @param array $condition
     * @param number $page
     * @param string $page_size
     * @param string $order
     * @param string $field
     */
    public function getDiscountPageList($condition = [], $page = 1, $page_size = PAGE_LIST_ROWS, $order = '', $field = '*', $alias = '', $join = [])
    {
        $list = model('promotion_discount')->pageList($condition, $field, $order, $page, $page_size, $alias, $join);
        return $this->success($list);
    }

    /**
     * 删除商品营销活动标识
     * @param $discount_id
     * @param int $sku_id
     */
    private function deleteGoodsPromotionAddon($discount_id, $sku_id = 0)
    {
        $goods = new Goods();
        $condition = [
            [ 'discount_id', '=', $discount_id ]
        ];
        if (!empty($sku_id)) {
            $condition[] = [ 'sku_id', '=', $sku_id ];
        }
        $goods_list = model('promotion_discount_goods')->getList($condition, 'goods_id');
        foreach ($goods_list as $k => $v) {
            $goods->modifyPromotionAddon($v[ 'goods_id' ], [ 'discount' => $discount_id ], true);
        }

    }

    /**
     * 获取商品列表
     * @param $discount_id
     * @param $site_id
     * @return array
     */
    public function getDiscountGoodsList($discount_id)
    {
        $field = 'pdg.*,sku.sku_name,sku.price,sku.sku_image,sku.stock';
        $alias = 'pdg';
        $join = [
            [
                'goods g',
                'g.goods_id = pdg.goods_id',
                'inner'
            ],
            [
                'goods_sku sku',
                'sku.sku_id = pdg.sku_id',
                'inner'
            ]
        ];
        $condition = [
            [ 'pdg.discount_id', '=', $discount_id ],
            [ 'g.is_delete', '=', 0 ], [ 'g.goods_state', '=', 1 ]
        ];

        $list = model('promotion_discount_goods')->getList($condition, $field, '', $alias, $join);
        return $this->success($list);
    }
}