<?php

namespace app\admin\controller\marketing;

use app\common\controller\Backend;
use think\Db;
use Exception;
use think\exception\DbException;
use think\exception\PDOException;
use think\exception\ValidateException;
/**
 * 营销活动表（整体活动）
 *
 * @icon fa fa-circle-o
 */
class Discount extends Backend
{

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

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\marketing\discount\Discount;
    }

    /**
     * 规格折扣设置
     */
    public function spec_discount()
    {
        $goods_id = $this->request->get('goods_id');
        if (!$goods_id) {
            $this->error('参数错误');
        }
        
        if ($this->request->isAjax()) {
            // 处理提交的数据
            $specs = $this->request->post('specs', []);
            if ($specs) {
                $result = [
                    'goodsId' => $goods_id,
                    'specs' => $specs
                ];
                $this->success('设置成功', null, $result);
            }
            $this->error('提交数据失败');
        }
        
        // 获取商品信息
        $goods = Db::name('shop_goods')->where('id', $goods_id)->find();
        if (!$goods) {
            $this->error('商品不存在');
        }
        
        // 获取规格信息
        $goods_skus = Db::name('shop_goods_sku')
            ->where('goods_id', $goods_id)
            ->select();
            
        // 获取规格属性名称和值
        $sku_specs = [];
        foreach ($goods_skus as &$sku) {
            $sku_id_arr = explode(',', $sku['spec_value_ids']);
            
            // 查询规格名称和值
            $spec_values = Db::name('shop_goods_sku_spec')
                ->alias('p')
                ->field('p.*, sp.name as spec_name, sv.value as spec_value')
                ->join('shop_spec sp', 'sp.id=p.spec_id', 'LEFT')
                ->join('shop_spec_value sv', 'sv.id=p.spec_value_id', 'LEFT')
                ->where('p.id', 'in', $sku_id_arr)
                ->select();
                
            $specs_text = [];
            foreach ($spec_values as $spec) {
                $specs_text[] = $spec['spec_name'] . ':' . $spec['spec_value'];
            }
            $sku['specs_text'] = implode(' | ', $specs_text);
        }
        
        $this->view->assign('goods', $goods);
        $this->view->assign('skus', $goods_skus);
        
        return $this->view->fetch();
    }

    /**
     * 添加
     *
     * @return string
     * @throws \think\Exception
     */
    public function add()
    {
        if (false === $this->request->isPost()) {
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);

        if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
            $params[$this->dataLimitField] = $this->auth->id;
        }
        
        // 处理活动渠道
        if (isset($params['channels']) && is_array($params['channels'])) {
            $params['channels'] = json_encode($params['channels']);
        } else {
            $params['channels'] = json_encode([]);
        }
        
        // 处理商品ID和商品数量
        $goodsIds = isset($params['goods_ids']) ? $params['goods_ids'] : '';
        if ($goodsIds) {
            $goodsIdArr = explode(',', $goodsIds);
            $params['goods_count'] = count($goodsIdArr);
            // 存储为JSON格式
            $params['goods_ids'] = json_encode($goodsIdArr);
        } else {
            $params['goods_count'] = 0;
            $params['goods_ids'] = '[]';
        }
        
        // 设置默认字段值
        $params['type'] = isset($params['type']) ? $params['type'] : 'discount';
        $params['inner_type'] = isset($params['inner_type']) ? $params['inner_type'] : 0;

        // 对于折扣活动，强制设置为指定商品参与
        if ($params['type'] == 'discount') {
            $params['goods_join_type'] = 2; // 指定商品参与
        } else {
            $params['goods_join_type'] = isset($params['goods_join_type']) ? $params['goods_join_type'] : 0;
        }
        
        // 设置活动状态
        $now = time();
        $startTime = strtotime($params['start_time']);
        $endTime = strtotime($params['end_time']);
        
        if ($startTime > $now) {
            $params['activity_status'] = 0; // 未开始
        } elseif ($startTime <= $now && $endTime > $now) {
            $params['activity_status'] = 1; // 进行中
        } else {
            $params['activity_status'] = 2; // 已结束
        }
        
        $result = false;
        Db::startTrans();
        try {
            // 是否采用模型验证
            if ($this->modelValidate) {
                $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                $this->model->validateFailException()->validate($validate);
            }
            
            // 处理商品信息数组
            $goodsInfo = isset($params['goods_info']) ? json_decode($params['goods_info'], true) : [];
            
            // 保存活动基本信息
            $result = $this->model->allowField(true)->save($params);

            // 处理折扣信息
            $discountId = $this->model->id;
            
            // 保存规格折扣数据
            if ($params['type'] == 'discount' && !empty($goodsInfo)) {
                $specsData = [];
                
                foreach ($goodsInfo as $goodsItem) {
                    if (!isset($goodsItem['goods_id'])) {
                        continue;
                    }
                    
                    $goodsId = $goodsItem['goods_id'];
                    // 查询商品信息
                    $goods = Db::name('shop_goods')->where('id', $goodsId)->find();
                    if (!$goods) {
                        continue;
                    }
                    
                    if ($goodsItem['spec_type'] == 0) { // 单规格商品
                        if (!isset($goodsItem['discount_price']) || !isset($goodsItem['discount_stocks'])) {
                            continue;
                        }
                        
                        // 获取单规格商品的实际SKU ID
                        $skuId = isset($goodsItem['sku_id']) ? $goodsItem['sku_id'] : 0;
                        if ($skuId == 0) {
                            // 如果没有传SKU ID，查询商品的第一个SKU
                            $sku = Db::name('shop_goods_sku')->where('goods_id', $goodsId)->find();
                            $skuId = $sku ? $sku['id'] : 0;
                        }
                        
                        $specsData[] = [
                            'activity_id' => $discountId,
                            'goods_id' => $goodsId,
                            'sku_id' => $skuId, // 使用实际的SKU ID
                            'discount' => $goodsItem['discount'] ?: round($goodsItem['discount_price'] * 10 / $goods['price'], 1),
                            'discount_price' => $goodsItem['discount_price'],
                            'stocks' => $goodsItem['discount_stocks'],
                            'createtime' => time(),
                            'updatetime' => time(),
                        ];
                    } else if ($goodsItem['spec_type'] == 1 && isset($goodsItem['spec'])) { // 多规格商品
                        foreach ($goodsItem['spec'] as $spec) {
                            if (!isset($spec['sku_id']) || !isset($spec['discount_price']) || !isset($spec['discount_stocks'])) {
                                continue;
                            }
                            
                            // 查询规格原始价格
                            $skuInfo = Db::name('shop_goods_sku')
                                ->where(['id' => $spec['sku_id']])
                                ->find();
                            
                            if ($skuInfo) {
                                $specsData[] = [
                                    'activity_id' => $discountId,
                                    'goods_id' => $goodsId,
                                    'sku_id' => $spec['sku_id'],
                                    'discount' => $spec['discount'] ?: round($spec['discount_price'] * 10 / $skuInfo['price'], 1),
                                    'discount_price' => $spec['discount_price'],
                                    'stocks' => $spec['discount_stocks'],
                                    'createtime' => time(),
                                    'updatetime' => time(),
                                ];
                            }
                        }
                    }
                }
                
                // 批量插入规格折扣数据
                if (!empty($specsData)) {
                    Db::table('shop_activity_sku')->insertAll($specsData);
                }
            }
            
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($result === false) {
            $this->error(__('No rows were inserted'));
        }
        $this->success();
    }

    /**
     * 编辑
     *
     * @param $ids
     * @return string
     * @throws DbException
     * @throws \think\Exception
     */
    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds) && !in_array($row[$this->dataLimitField], $adminIds)) {
            $this->error(__('You have no permission'));
        }
        if (false === $this->request->isPost()) {
            // 解码JSON数据
            if ($row['channels']) {
                $row['channels'] = json_decode($row['channels'], true);
            }
            if ($row['goods_ids']) {
                $goodsIdArr = json_decode($row['goods_ids'], true);
                $row['goods_ids'] = implode(',', $goodsIdArr);
                
                // 获取商品数据
                $goodsData = [];
                if (!empty($goodsIdArr)) {
                    $goodsData = Db::name('shop_goods')
                        ->alias('g')
                        ->field('g.*, c.name as category_name')
                        ->join('shop_category c', 'c.id = g.category_id', 'LEFT')
                        ->where('g.id', 'in', $goodsIdArr)
                        ->select();
                        
                    // 处理商品数据，添加category属性
                    foreach ($goodsData as &$goods) {
                        $goods['category'] = ['name' => $goods['category_name']];
                        unset($goods['category_name']);
                    }
                }
                $this->view->assign('goodsData', $goodsData);
            }
            
            $this->view->assign('row', $row);
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);
        
        // 处理活动渠道
        if (isset($params['channels']) && is_array($params['channels'])) {
            $params['channels'] = json_encode($params['channels']);
        } else {
            $params['channels'] = json_encode([]);
        }
        
        // 处理商品ID和商品数量
        $goodsIds = isset($params['goods_ids']) ? $params['goods_ids'] : '';
        if ($goodsIds) {
            $goodsIdArr = explode(',', $goodsIds);
            $params['goods_count'] = count($goodsIdArr);
            $params['goods_ids'] = json_encode($goodsIdArr);
        } else {
            $params['goods_count'] = 0;
            $params['goods_ids'] = '[]';
        }
        
        // 对于折扣活动，强制设置为指定商品参与
        if ($params['type'] == 'discount') {
            $params['goods_join_type'] = 2;
        }
        
        // 设置活动状态
        $now = time();
        $startTime = strtotime($params['start_time']);
        $endTime = strtotime($params['end_time']);
        
        if ($startTime > $now) {
            $params['activity_status'] = 0; // 未开始
        } elseif ($startTime <= $now && $endTime > $now) {
            $params['activity_status'] = 1; // 进行中
        } else {
            $params['activity_status'] = 2; // 已结束
        }
        
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($this->modelValidate) {
                $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                $row->validateFailException()->validate($validate);
            }
            
            $result = $row->allowField(true)->save($params);
            
            // 处理折扣数据
            if ($params['type'] == 'discount') {
                // 处理商品信息数组
                $goodsInfo = isset($params['goods_info']) ? json_decode($params['goods_info'], true) : [];
                \think\Log::write('编辑时商品信息数组: ' . json_encode($goodsInfo), 'debug');
                
                // 删除旧的规格折扣数据
                Db::name('shop_activity_sku')->where('activity_id', $ids)->delete();
                
                // 准备新的规格折扣数据
                if (!empty($goodsInfo)) {
                    $specsData = [];
                    foreach ($goodsInfo as $goodsItem) {
                        if (!isset($goodsItem['goods_id'])) {
                            continue;
                        }
                        
                        $goodsId = $goodsItem['goods_id'];
                        // 查询商品信息
                        $goods = Db::name('shop_goods')->where('id', $goodsId)->find();
                        if (!$goods) {
                            continue;
                        }
                        
                        if ($goodsItem['spec_type'] == 0) { // 单规格商品
                            if (!isset($goodsItem['discount_price']) || !isset($goodsItem['discount_stocks'])) {
                                continue;
                            }
                            
                            // 获取单规格商品的实际SKU ID
                            $skuId = isset($goodsItem['sku_id']) ? $goodsItem['sku_id'] : 0;
                            if ($skuId == 0) {
                                // 如果没有传SKU ID，查询商品的第一个SKU
                                $sku = Db::name('shop_goods_sku')->where('goods_id', $goodsId)->find();
                                $skuId = $sku ? $sku['id'] : 0;
                            }
                            
                            $specsData[] = [
                                'activity_id' => $ids,
                                'goods_id' => $goodsId,
                                'sku_id' => $skuId, // 使用实际的SKU ID
                                'discount' => $goodsItem['discount'] ?: round($goodsItem['discount_price'] * 10 / $goods['price'], 1),
                                'discount_price' => $goodsItem['discount_price'],
                                'stocks' => $goodsItem['discount_stocks'],
                                'createtime' => time(),
                                'updatetime' => time(),
                            ];
                        } else if ($goodsItem['spec_type'] == 1 && isset($goodsItem['spec'])) { // 多规格商品
                            foreach ($goodsItem['spec'] as $spec) {
                                if (!isset($spec['sku_id']) || !isset($spec['discount_price']) || !isset($spec['discount_stocks'])) {
                                    continue;
                                }
                                
                                // 查询规格原始价格
                                $skuInfo = Db::name('shop_goods_sku')
                                    ->where(['id' => $spec['sku_id']])
                                    ->find();
                                
                                if ($skuInfo) {
                                    $specsData[] = [
                                        'activity_id' => $ids,
                                        'goods_id' => $goodsId,
                                        'sku_id' => $spec['sku_id'],
                                        'discount' => $spec['discount'] ?: round($spec['discount_price'] * 10 / $skuInfo['price'], 1),
                                        'discount_price' => $spec['discount_price'],
                                        'stocks' => $spec['discount_stocks'],
                                        'createtime' => time(),
                                        'updatetime' => time(),
                                    ];
                                }
                            }
                        }
                    }
                    
                    // 批量插入规格折扣数据
                    if (!empty($specsData)) {
                        Db::name('shop_activity_sku')->insertAll($specsData);
                    }
                }
            }
            
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if (false === $result) {
            $this->error(__('No rows were updated'));
        }
        $this->success();
    }

    /**
     * 手动停止活动
     */
    public function stopActivity()
    {
        $id = $this->request->post('id');
        $activity = $this->model->find($id);
        
        if (!$activity) {
            $this->error('活动不存在');
        }
        
        if ($activity['activity_status'] != 1) {
            $this->error('只有进行中的活动才能手动停止');
        }
        
        // 设置停止时间和状态
        $activity->stop_time = date('Y-m-d H:i:s');
        $activity->activity_status = 3; // 手动停止
        
        if ($activity->save()) {
            $this->success('活动已手动停止');
        } else {
            $this->error('操作失败');
        }
    }

    /**
     * 更新活动状态
     * 可作为定时任务
     */
    public function updateActivityStatus()
    {
        $now = date('Y-m-d H:i:s');
        
        // 更新未开始的活动
        Db::name('shop_discount')
            ->where([
                'status' => 1, // 启用状态
                'activity_status' => ['IN', [0, 3]], // 未开始或手动停止
                'start_time' => ['<=', $now],
                'end_time' => ['>', $now],
                'stop_time' => ['exp', Db::raw('IS NULL OR stop_time > NOW()')],
            ])
            ->update(['activity_status' => 1]); // 更新为进行中
        
        // 更新已结束的活动
        Db::name('shop_discount')
            ->where([
                'status' => 1, // 启用状态
                'activity_status' => 1, // 进行中
            ])
            ->where(function($query) use ($now) {
                $query->where('end_time', '<=', $now)
                    ->whereOr('stop_time', '<=', $now);
            })
            ->update(['activity_status' => 2]); // 更新为已结束
            
        $this->success('活动状态更新完成');
    }

    /**
     * 获取活动商品的折扣和库存数据
     */
    public function get_discount_specs()
    {
        $discountId = $this->request->get('discount_id');
        if (!$discountId) {
            $this->error('参数错误');
        }
        
        // 查询折扣数据
        $discountSpecs = Db::name('shop_activity_sku_prize')
            ->where('discount_id', $discountId)
            ->select();
            
        $this->success('', null, $discountSpecs);
    }
}