<?php

namespace common\base\models;

use common\components\util;
use yii\db\ActiveRecord;

class Base extends ActiveRecord
{

    /**
     * 获取当前模型实例
     * @return static
     */
    public function getModel()
    {
        $self = get_called_class();
        return new $self;
    }

    /**
     * 添加数据
     * @param array $data 数据数组
     * @param bool $returnObject 是否返回对象，true返回模型对象，false返回数组
     * @return $this|array
     * @throws \Exception
     */
    public function add($data, $returnObject = false)
    {
        $model = $this->getModel();
        $attributes = $model->attributes;
        $fields = array_keys($attributes);
        foreach ($fields as $key) {
            if (isset($data[$key])) {
                $model->$key = $data[$key];
            }
        }

        if (!$model->validate()) {
            // 验证失败: $errors 是一个包含错误信息的数组
            \Yii::error(static::tableName() . ' -- model validate errors: ' . json_encode($model->errors));
            util::fail('输入数据验证失败');
        }

        // 保存数据并检查结果
        if (!$model->save()) {
            $errors = $model->errors;
            \Yii::error(static::tableName() . ' -- save failed: ' . json_encode($errors));
            throw new \Exception('数据保存失败: ' . json_encode($errors));
        }

        return $returnObject ? $model : $model->attributes;
    }

    /**
     * 批量添加
     * @param array $data 二维数组 [['name'=>'a'], ['name'=>'b']]
     * @return void
     */
    public function batchAdd($data)
    {
        $model = $this->getModel();
        foreach ($data as $attributes) {
            $newModel = clone $model;
            // false 不检测字段安全 true 需要在model设置rules
            $newModel->setAttributes($attributes, false);
            $newModel->save();
        }
    }

    /**
     * 获取表的所有字段名
     * @return array
     */
    public function getFields()
    {
        $model = $this->getModel();
        $attributes = $model->attributes;
        return array_keys($attributes);
    }

    /**
     * 根据主键ID删除一条记录
     * @param int|string $id 主键ID
     * @return int|false 删除的行数，失败返回false
     * @throws \Throwable
     * @throws \yii\db\StaleObjectException
     */
    public function deleteById($id)
    {
        $model = $this->getModel();
        return $model::findOne($id)->delete();
    }

    /**
     * 根据多个主键ID批量删除
     * @param array $ids 主键ID数组
     * @return int 删除的行数
     */
    public function deleteByIds($ids)
    {
        $model = $this->getModel();
        return $model::deleteAll(['id' => $ids]);
    }

    /**
     * 根据条件删除一条或多条记录
     * @param array $condition 查询条件
     * @return int 删除的行数
     */
    public function deleteByCondition($condition)
    {
        if (empty($condition)) {
            return 0;
        }
        $where = array();
        $variable = array();
        foreach ($condition as $key => $val) {
            $where[] = $key . '=:' . $key;
            $variable[':' . $key] = $val;
        }
        $whereString = implode(' and ', $where);
        $count = self::deleteAll($whereString, $variable);
        return $count;
    }


    /**
     * 根据主键ID更新一条记录
     * @param int|string $id 主键ID
     * @param array $data 更新的数据
     * @return array ['status' => bool, 'data' => array] status=true更新成功，false更新失败
     */
    public function updateById($id, $data)
    {
        $model = $this->getModel();
        $attributes = $model->attributes;
        $fields = array_keys($attributes);
        foreach ($data as $key => $val) {
            if (in_array($key, $fields) == false) {
                //删除表里不存在字段
                unset($data[$key]);
            }
        }
        $re = self::updateAll($data, 'id=:id', ['id' => $id]);
        if ($re == 1) {
            return ['status' => true, 'data' => $data];
        }
        return ['status' => false, 'data' => $data];
    }

    /**
     * 根据多个主键ID批量更新
     * @param array $ids 主键ID数组
     * @param array $data 更新的数据
     * @return int 更新的行数
     */
    public function updateByIds($ids, $data)
    {
        return self::updateAll($data, ['id' => $ids]);
    }

    /**
     * 根据条件更新一条或多条记录
     * @param array $condition 查询条件
     * @param array $data 更新的数据
     * @return int 更新的行数
     */
    public function updateByCondition($condition, $data)
    {
        $where = array();
        $variable = array();
        foreach ($condition as $key => $val) {
            $where[] = $key . '=:' . $key;
            $variable[':' . $key] = $val;
        }
        $whereString = implode(' and ', $where);
        $count = self::updateAll($data, $whereString, $variable);
        return $count;
    }

    /**
     * 根据主键ID查出一条记录
     * @param int|string $id 主键ID
     * @param bool $returnObject 是否返回对象
     * @param string|array $field 查询字段
     * @return array|ActiveRecord|null
     * @throws \Exception
     */
    public function getById($id, $returnObject = false, $field = '*')
    {
        $query = $this->conditionQuery(['id' => $id])->select($field);
        if ($returnObject == false) {
            return $query->asArray()->one();
        } else {
            return $query->one();
        }
    }

    /**
     * 根据条件查出一条记录
     * @param array $condition 查询条件
     * @param bool $returnObject 是否返回对象
     * @param string|array|bool $order 排序
     * @param string|array $field 查询字段
     * @return array|ActiveRecord|null
     * @throws \Exception
     */
    public function getByCondition($condition, $returnObject = false, $order = false, $field = '*')
    {
        $query = $this->conditionQuery($condition)->select($field);
        if (isset($order)) {
            $query->orderBy($order);
        }
        return $returnObject == true ? $query->one() : $query->asArray()->one();
    }

    /**
     * 获取第一条记录 (通常用于获取任意一条或结合排序获取特定一条)
     * @param bool $returnObject 是否返回对象
     * @param string|array|bool $order 排序
     * @param string|array $field 查询字段
     * @return array|ActiveRecord|null
     * @throws \Exception
     */
    public function getOne($returnObject = false, $order = false, $field = '*')
    {
        $query = $this->conditionQuery([])->select($field);
        if (isset($order)) {
            $query->orderBy($order);
        }
        return $returnObject == true ? $query->one() : $query->asArray()->one();
    }

    /**
     * 构建查询条件对象
     * 支持查询条件包括:
     * $condition = [
     *     'name' => 'john',               // 等于
     *     'id>' => 3,                     // 大于
     *     'id<' => 10,                    // 小于
     *     'id>=' => 3,                    // 大于等于
     *     'id<=' => 10,                   // 小于等于
     *     'id!=' => -1,                   // 不等于
     *     'id' => ['in', [10,11,12]],     // IN
     *     'id' => ['not in', [10,11,12]], // NOT IN
     *     'age' => ['between', [20,30]],  // BETWEEN
     *     'name' => ['like', 'Jack']      // LIKE
     * ];
     * @param array $condition 查询条件数组
     * @return \yii\db\ActiveQuery
     * @throws \Exception
     */
    public function conditionQuery($condition = [])
    {
        $whereNum = 0;
        $query = self::find();
        if (!empty($condition)) {
            foreach ($condition as $key => $val) {
                $param = [$key => $val];
                if (strstr($key, '!=')) {
                    //不等于
                    $pos = strpos($key, '!=');
                    $currentKey = substr($key, 0, $pos);
                    $param = ['!=', $currentKey, $val];
                } elseif (strstr($key, '>=')) {
                    //大于等于
                    $pos = strpos($key, '>=');
                    $currentKey = substr($key, 0, $pos);
                    $param = ['>=', $currentKey, $val];
                } elseif (strstr($key, '<=')) {
                    //小于等于
                    $pos = strpos($key, '<=');
                    $currentKey = substr($key, 0, $pos);
                    $param = ['<=', $currentKey, $val];
                } elseif (strstr($key, '>')) {
                    //大于
                    $pos = strpos($key, '>');
                    $currentKey = substr($key, 0, $pos);
                    $param = ['>', $currentKey, $val];
                } elseif (strstr($key, '<')) {
                    //小于
                    $pos = strpos($key, '<');
                    $currentKey = substr($key, 0, $pos);
                    $param = ['<', $currentKey, $val];
                } elseif (is_array($val)) {
                    if (count($val) != 2) {
                        util::fail('参数不至2个，非法查询方式：' . json_encode($condition));
                    }
                    if ($val[0] == 'in') {
                        $param = ['in', $key, $val[1]];
                    } elseif ($val[0] == 'not in') {
                        $param = ['not in', $key, $val[1]];
                    } elseif ($val[0] == 'between') {
                        $param = ['between', $key, $val[1][0], $val[1][1]];
                    } elseif ($val[0] == 'like') {
                        $param = ['like', $key, $val[1]];
                    } else {
                        util::fail('非法查询方式：' . json_encode($condition));
                    }
                } else {

                }
                if ($whereNum == 0) {
                    $query->where($param);
                } else {
                    $query->andWhere($param);
                }
                $whereNum++;
            }
        }
        return $query;
    }

    /**
     * 判断数据是否存在
     * @param array $condition 查询条件
     * @return bool
     * @throws \Exception
     */
    public function exists($condition)
    {
        return $this->conditionQuery($condition)->exists();
    }

    /**
     * 根据条件查出多条记录
     * @param array $condition 查询条件
     * @param string|array|null $order 排序
     * @param string|array $field 查询字段
     * @param string|callable|null $indexBy 索引字段
     * @param bool $returnObject 是否返回对象
     * @return array|ActiveRecord[]
     * @throws \Exception
     */
    public function getAllByCondition($condition, $order = null, $field, $indexBy = null, $returnObject = false)
    {
        $query = $this->conditionQuery($condition)->select($field);
        if (isset($indexBy)) {
            $query->indexBy($indexBy);
        }
        if (isset($order)) {
            $query->orderBy($order);
        }

        if ($returnObject == false) {
            return $query->asArray()->all();
        } else {
            return $query->all();
        }
    }

    /**
     * 根据多个主键ID查询多条记录
     * @param array $ids 主键ID数组
     * @param string|array|null $order 排序
     * @param string|callable|null $indexBy 索引字段
     * @param string|array $field 查询字段
     * @return array
     * @throws \Exception
     */
    public function getByIds($ids, $order = null, $indexBy = null, $field = '*')
    {
        $data = [];
        if (empty($ids)) {
            return $data;
        }
        $query = $this->conditionQuery(['id' => ['in', $ids]])->select($field);
        if (isset($indexBy)) {
            $query->indexBy($indexBy);
        }
        if (!empty($order)) {
            $query->order($order);
        }
        $data = $query->asArray()->all();
        return $data;
    }

    /**
     * 根据条件获取记录数量
     * @param array $condition 查询条件
     * @return int|string
     * @throws \Exception
     */
    public function getCount($condition)
    {
        return $this->conditionQuery($condition)->count();
    }

    /**
     * 分页查询列表
     * @param string|array $field 查询字段
     * @param array $where 查询条件
     * @param int $page 当前页码
     * @param int $pageSize 每页数量
     * @param string|array $order 排序
     * @param string|array $with 关联查询
     * @return array ['totalNum' => int, 'totalPage' => int, 'moreData' => int, 'list' => array]
     * @throws \Exception
     */
    public function getList($field, $where, $page, $pageSize, $order = '', $with = '')
    {
        $offset = ($page - 1) * $pageSize;
        $query = $this->conditionQuery($where)->select($field);

        $clone = clone $query;
        $count = $clone->count();
        $totalPage = ceil($count / $pageSize);
        $data['totalNum'] = $count;
        $data['totalPage'] = $totalPage;//总共页数
        $data['moreData'] = $totalPage > $page ? 1 : 0;//是否还有更多数据

        if (!empty($order)) {
            $query->orderBy($order);
        }
        if (!empty($with)) {
            $query->with($with);
        }
        $list = $query->offset($offset)->limit($pageSize)->asArray()->all();
        $data['list'] = $list;//数据
        return $data;
    }

    /**
     * 查询全部列表 (不分页)
     * @param string|array $field 查询字段
     * @param array $where 查询条件
     * @param string|array $order 排序
     * @param string|array $with 关联查询
     * @return array
     * @throws \Exception
     */
    public function getAllList($field, $where, $order = '', $with = '')
    {
        $query = $this->conditionQuery($where)->select($field);
        if (!empty($order)) {
            $query->orderBy($order);
        }
        if (!empty($with)) {
            $query->with($with);
        }
        $list = $query->asArray()->all();
        return $list;
    }

    /**
     * 查询指定条数的列表
     * @param string|array $field 查询字段
     * @param array $where 查询条件
     * @param int $limit 限制条数
     * @param string|array $order 排序
     * @param string|array $with 关联查询
     * @return array
     * @throws \Exception
     */
    public function getLimitList($field, $where, $limit, $order = '', $with = '')
    {
        $offset = 0;
        $query = $this->conditionQuery($where)->select($field);
        if (!empty($order)) {
            $query->orderBy($order);
        }
        if (!empty($with)) {
            $query->with($with);
        }
        $list = $query->offset($offset)->limit($limit)->asArray()->all();
        return $list;
    }

    /**
     * 更新计数器 (原子操作)
     * @param array $counters 更新的计数器数组，例如 ['view_count' => 1] 表示加1，['view_count' => -1] 表示减1
     * @param array $condition 更新条件
     * @param array $params 绑定参数
     * @return int 更新行数
     */
    public function counters($counters, $condition, $params = [])
    {
        return self::updateAllCounters($counters, $condition, $params);
    }

    /**
     * 根据主键获取记录并锁定 (SELECT FOR UPDATE)
     * @param int|string $id 主键ID
     * @param string|array $field 查询字段
     * @return array|ActiveRecord|null
     */
    public function getLockById($id, $field = '*')
    {
        return self::findBySql('select ' . $field . ' from ' . static::tableName() . ' where id = :id for update', ['id' => $id])->one();
    }

    /**
     * 求和
     * @param array $condition 查询条件
     * @param string $field 求和字段
     * @return mixed
     * @throws \Exception
     */
    public function sum($condition, $field)
    {
        return $this->conditionQuery($condition)->sum($field);
    }

}