<?php

namespace app\admin\controller\lottery;

use app\common\controller\Backend;
use think\Db;
use think\exception\ValidateException;
use think\exception\PDOException;
use Exception;

/**
 * 抽奖奖品管理
 *
 * @icon fa fa-gift
 */
class LotteryPrize extends Backend
{

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

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\lottery\LotteryPrize;
        
        // 获取枚举值列表
        $this->view->assign("typeList", $this->model->getTypeList());
        $this->view->assign("deliverTypeList", $this->model->getDeliverTypeList());
        $this->view->assign("statusList", $this->model->getStatusList());
    }

    /**
     * 查看
     */
    public function index()
    {
        //当前是否为关联查询
        $this->relationSearch = true;
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            list($where, $sort, $order, $offset, $limit) = $this->buildparams();
            
            $list = $this->model
                    ->with(['activity'])
                    ->where($where)
                    ->order($sort, $order)
                    ->paginate($limit);

            foreach ($list as $row) {
                $row->visible(['id','activity_id','name','type','image','probability','total_stock','remain_stock','win_count','sort_order','deliver_type','status']);
                $row->visible(['activity']);
                $row->getRelation('activity')->visible(['name']);
            }
            
            $result = array("total" => $list->total(), "rows" => $list->items());

            return json($result);
        }
        return $this->view->fetch();
    }

    /**
     * 添加
     */
    public function add()
    {
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);
                
                // 处理兑换码
                if (isset($params['exchange_codes']) && is_array($params['exchange_codes'])) {
                    $params['exchange_codes'] = json_encode($params['exchange_codes']);
                }
                
                // 初始化剩余库存
                if (isset($params['total_stock'])) {
                    $params['remain_stock'] = $params['total_stock'];
                }

                $result = false;
                Db::startTrans();
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                        $this->model->validateFailException(true)->validate($validate);
                    }
                    $result = $this->model->allowField(true)->save($params);
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were inserted'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        return $this->view->fetch();
    }

    /**
     * 编辑
     */
    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)) {
            if (!in_array($row[$this->dataLimitField], $adminIds)) {
                $this->error(__('You have no permission'));
            }
        }
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);
                
                // 处理兑换码
                if (isset($params['exchange_codes']) && is_array($params['exchange_codes'])) {
                    $params['exchange_codes'] = json_encode($params['exchange_codes']);
                }
                
                // 如果修改了总库存，同步修改剩余库存
                if (isset($params['total_stock']) && $params['total_stock'] != $row->total_stock) {
                    $diff = $params['total_stock'] - $row->total_stock;
                    $params['remain_stock'] = $row->remain_stock + $diff;
                }

                $result = false;
                Db::startTrans();
                try {
                    //是否采用模型验证
                    if ($this->modelValidate) {
                        $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
                        $row->validateFailException(true)->validate($validate);
                    }
                    $result = $row->allowField(true)->save($params);
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were updated'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        
        // 处理兑换码显示
        if ($row->exchange_codes) {
            $row->exchange_codes = json_decode($row->exchange_codes, true);
        }
        
        $this->view->assign("row", $row);
        return $this->view->fetch();
    }

    /**
     * 批量导入兑换码
     */
    public function importCodes($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        
        if ($this->request->isPost()) {
            $codes = $this->request->post('codes');
            if (empty($codes)) {
                $this->error('兑换码不能为空');
            }
            
            // 处理兑换码列表
            $codeArray = array_filter(array_map('trim', explode("\n", $codes)));
            $existingCodes = $row->exchange_codes ? json_decode($row->exchange_codes, true) : [];
            $newCodes = array_merge($existingCodes, $codeArray);
            
            // 更新奖品
            $row->exchange_codes = json_encode($newCodes);
            $row->total_stock = count($newCodes);
            $row->remain_stock = count($newCodes) - $row->win_count;
            
            if ($row->save()) {
                $this->success('导入成功，共导入' . count($codeArray) . '个兑换码');
            } else {
                $this->error('导入失败');
            }
        }
        
        $this->view->assign("row", $row);
        return $this->view->fetch();
    }

    /**
     * 补充库存
     */
    public function addStock($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        
        if ($this->request->isPost()) {
            $addCount = $this->request->post('add_count', 0);
            if ($addCount <= 0) {
                $this->error('补充数量必须大于0');
            }
            
            $row->total_stock += $addCount;
            $row->remain_stock += $addCount;
            
            if ($row->save()) {
                $this->success('库存补充成功');
            } else {
                $this->error('库存补充失败');
            }
        }
        
        $this->view->assign("row", $row);
        return $this->view->fetch();
    }
}