<?php
/**
 * *
 *  * ============================================================================
 *  * Created by PhpStorm.
 *  * User: Ice
 *  * 邮箱: ice@sbing.vip
 *  * 网址: https://sbing.vip
 *  * Date: 2019/9/19 下午5:05
 *  * ============================================================================.
 */

namespace app\admin\library\traits;

use app\admin\model\User;
use think\Exception;
use think\facade\Db;
use app\admin\library\Auth;
use think\exception\ValidateException;
use PhpOffice\PhpSpreadsheet\Reader\Csv;
use PhpOffice\PhpSpreadsheet\Reader\Xls;
use PhpOffice\PhpSpreadsheet\Reader\Xlsx;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;

trait Backend
{
    /**
     * 排除前台提交过来的字段
     *
     * @param $params
     *
     * @return array
     */
    protected function preExcludeFields($params)
    {
        if (is_array($this->excludeFields)) {
            foreach ($this->excludeFields as $field) {
                if (array_key_exists($field, $params)) {
                    unset($params[$field]);
                }
            }
        } else {
            if (array_key_exists($this->excludeFields, $params)) {
                unset($params[$this->excludeFields]);
            }
        }

        return $params;
    }

    /**
     * 查看
     */
    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags']);
        if ($this->request->isAjax()) {
            //如果发送的来源是Selectpage，则转发到Selectpage
            if ($this->request->request('keyField')) {
                return $this->selectpage();
            }
            [$where, $sort, $order, $offset, $limit] = $this->buildparams();
            $total = $this->model
                ->where($where)
                ->order($sort, $order)
                ->count();

            $list = $this->model
                ->where($where)
                ->order($sort, $order)
                ->limit($offset, $limit)
                ->select();

            $list   = $list->toArray();
            $result = ['total' => $total, 'rows' => $list];

            return json($result);
        }

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

    /**
     * 回收站
     */
    public function recyclebin()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags']);
        if ($this->request->isAjax()) {
            [$where, $sort, $order, $offset, $limit] = $this->buildparams();
            $total = $this->model
                ->onlyTrashed()
                ->where($where)
                ->order($sort, $order)
                ->count();

            $list = $this->model
                ->onlyTrashed()
                ->where($where)
                ->order($sort, $order)
                ->limit($offset, $limit)
                ->select();

            $result = ['total' => $total, 'rows' => $list];

            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);

                if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
                    $params[$this->dataLimitField] = $this->auth->id;
                }
                $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) : $this->modelValidate;
                        validate($validate)->scene($this->modelSceneValidate ? 'edit' : $name)->check($params);
                    }
                    $result = $this->model->save($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);
                $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) ? $name : $this->modelValidate;
                        $pk       = $row->getPk();
                        if (!isset($params[$pk])) {
                            $params[$pk] = $row->$pk;
                        }
                        validate($validate)->scene($this->modelSceneValidate ? 'edit' : $name)->check($params);
                    }
                    $result = $row->save($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', ''));
        }
        $this->view->assign('row', $row);

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

    /**
     * 删除
     */
    public function del($ids = '')
    {
        if ($ids) {
            $pk       = $this->model->getPk();
            $adminIds = $this->getDataLimitAdminIds();
            if (is_array($adminIds)) {
                $this->model->where($this->dataLimitField, 'in', $adminIds);
            }
            $list = $this->model->where($pk, 'in', $ids)->select();

            $count = 0;
            Db::startTrans();

            try {
                foreach ($list as $k => $v) {
                    $count += $v->delete();
                }
                Db::commit();
            } catch (\PDOException $e) {
                Db::rollback();
                $this->error($e->getMessage());
            } catch (Exception $e) {
                Db::rollback();
                $this->error($e->getMessage());
            }
            if ($count) {
                $this->success();
            } else {
                $this->error(__('No rows were deleted'));
            }
        }
        $this->error(__('Parameter %s can not be empty', 'ids'));
    }

    /**
     * 真实删除
     */
    public function destroy($ids = '')
    {
        $pk       = $this->model->getPk();
        $adminIds = $this->getDataLimitAdminIds();
        $where    = [];
        if (is_array($adminIds)) {
            $where[$this->dataLimitField] = $adminIds;
        }
        if ($ids) {
            $where[$pk] = explode(',', $ids);
        }
        $count = 0;
        Db::startTrans();

        try {
            $list = $this->model->onlyTrashed()->where($where)->select();
            foreach ($list as $k => $v) {
                $count += $v->force()->delete();
            }
            Db::commit();
        } catch (\PDOException $e) {
            Db::rollback();
            $this->error($e->getMessage());
        } catch (Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success();
        } else {
            $this->error(__('No rows were deleted'));
        }
        $this->error(__('Parameter %s can not be empty', 'ids'));
    }

    /**
     * 还原
     */
    public function restore($ids = '')
    {
        $pk       = $this->model->getPk();
        $adminIds = $this->getDataLimitAdminIds();
        $where    = [];
        if (is_array($adminIds)) {
            $where[$this->dataLimitField] = $adminIds;
        }
        if ($ids) {
            $where[$pk] = explode(',', $ids);
        }
        $count = 0;
        Db::startTrans();

        try {
            $list = $this->model->onlyTrashed()->where($where)->select();
            foreach ($list as $index => $item) {
                $count += $item->restore();
            }
            Db::commit();
        } catch (\PDOException $e) {
            Db::rollback();
            $this->error($e->getMessage());
        } catch (Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success();
        }
        $this->error(__('No rows were updated'));
    }

    /**
     * 批量更新
     */
    public function multi($ids = '')
    {
        $ids = $ids ? $ids : $this->request->param('ids');
        if ($ids) {
            if ($this->request->has('params')) {
                parse_str($this->request->post('params'), $values);
                $values = $this->auth->isSuperAdmin() ? $values : array_intersect_key($values,
                    array_flip(is_array($this->multiFields) ? $this->multiFields : explode(',', $this->multiFields)));
                if ($values) {
                    $adminIds = $this->getDataLimitAdminIds();
                    if (is_array($adminIds)) {
                        $this->model->where($this->dataLimitField, 'in', $adminIds);
                    }
                    $count = 0;
                    Db::startTrans();

                    try {
                        $list = $this->model->where($this->model->getPk(), 'in', $ids)->select();
                        foreach ($list as $index => $item) {
                            $count += $item->save($values);
                        }
                        Db::commit();
                    } catch (\PDOException $e) {
                        Db::rollback();
                        $this->error($e->getMessage());
                    } catch (Exception $e) {
                        Db::rollback();
                        $this->error($e->getMessage());
                    }
                    if ($count) {
                        $this->success();
                    } else {
                        $this->error(__('No rows were updated'));
                    }
                } else {
                    $this->error(__('You have no permission'));
                }
            }
        }
        $this->error(__('Parameter %s can not be empty', 'ids'));
    }

    /**
     * 导入
     */
    protected function import()
    {
        $file = $this->request->request('file');
        if (!$file) {
            $this->error(__('Parameter %s can not be empty', 'file'));
        }
        $filePath = app()->getRootPath().DIRECTORY_SEPARATOR.'public'.DIRECTORY_SEPARATOR.$file;
        if (!is_file($filePath)) {
            $this->error(__('No results were found'));
        }
        //实例化reader
        $ext = pathinfo($filePath, PATHINFO_EXTENSION);
        if (!in_array($ext, ['csv', 'xls', 'xlsx'])) {
            $this->error(__('Unknown data format'));
        }
        if ($ext === 'csv') {
            $file     = fopen($filePath, 'r');
            $filePath = tempnam(sys_get_temp_dir(), 'import_csv');
            $fp       = fopen($filePath, 'w');
            $n        = 0;
            while ($line = fgets($file)) {
                $line     = rtrim($line, "\n\r\0");
                $encoding = mb_detect_encoding($line, ['utf-8', 'gbk', 'latin1', 'big5']);
                if ($encoding != 'utf-8') {
                    $line = mb_convert_encoding($line, 'utf-8', $encoding);
                }
                if ($n == 0 || preg_match('/^".*"$/', $line)) {
                    fwrite($fp, $line."\n");
                } else {
                    fwrite($fp, '"'.str_replace(['"', ','], ['""', '","'], $line)."\"\n");
                }
                $n++;
            }
            fclose($file) || fclose($fp);

            $reader = new Csv();
        } elseif ($ext === 'xls') {
            $reader = new Xls();
        } else {
            $reader = new Xlsx();
        }

        //导入文件首行类型,默认是注释,如果需要使用字段名称请使用name
        $importHeadType = isset($this->importHeadType) ? $this->importHeadType : 'comment';

        $table    = $this->model->db()->getTable();
        $database = \think\facade\Config::get('database.database');
        $fieldArr = [];
        $list     = Db::query('SELECT COLUMN_NAME,COLUMN_COMMENT FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = ? AND TABLE_SCHEMA = ?',
            [$table, $database]);
        foreach ($list as $k => $v) {
            if ($importHeadType == 'comment') {
                $fieldArr[$v['COLUMN_COMMENT']] = $v['COLUMN_NAME'];
            } else {
                $fieldArr[$v['COLUMN_NAME']] = $v['COLUMN_NAME'];
            }
        }

        //加载文件
        $insert = [];

        try {
            if (!$PHPExcel = $reader->load($filePath)) {
                $this->error(__('Unknown data format'));
            }
            $currentSheet    = $PHPExcel->getSheet(0);  //读取文件中的第一个工作表
            $allColumn       = $currentSheet->getHighestDataColumn(); //取得最大的列号
            $allRow          = $currentSheet->getHighestRow(); //取得一共有多少行
            $maxColumnNumber = Coordinate::columnIndexFromString($allColumn);
            $fields          = [];
            for ($currentRow = 1; $currentRow <= 1; $currentRow++) {
                for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
                    $val      = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
                    $fields[] = $val;
                }
            }

            for ($currentRow = 2; $currentRow <= $allRow; $currentRow++) {
                $values = [];
                for ($currentColumn = 1; $currentColumn <= $maxColumnNumber; $currentColumn++) {
                    $val      = $currentSheet->getCellByColumnAndRow($currentColumn, $currentRow)->getValue();
                    $values[] = is_null($val) ? '' : $val;
                }
                $row  = [];
                $temp = array_combine($fields, $values);
                foreach ($temp as $k => $v) {
                    if (isset($fieldArr[$k]) && $k !== '') {
                        $row[$fieldArr[$k]] = $v;
                    }
                }
                if ($row) {
                    $insert[] = $row;
                }
            }
        } catch (Exception $exception) {
            $this->error($exception->getMessage());
        }
        if (!$insert) {
            $this->error(__('No rows were updated'));
        }

        try {
            //是否包含admin_id字段
            $has_admin_id = false;
            foreach ($fieldArr as $name => $key) {
                if ($key == 'admin_id') {
                    $has_admin_id = true;
                    break;
                }
            }
            if ($has_admin_id) {
                $auth = Auth::instance();
                foreach ($insert as &$val) {
                    if (!isset($val['admin_id']) || empty($val['admin_id'])) {
                        $val['admin_id'] = $auth->isLogin() ? $auth->id : 0;
                    }
                }
            }
            $this->model->saveAll($insert);
        } catch (\PDOException $exception) {
            $msg = $exception->getMessage();
            if (preg_match("/.+Integrity constraint violation: 1062 Duplicate entry '(.+)' for key '(.+)'/is", $msg,
                $matches)) {
                $msg = "导入失败，包含【{$matches[1]}】的记录已存在";
            }
            $this->error($msg);
        } catch (Exception $e) {
            $this->error($e->getMessage());
        }

        $this->success();
    }
}
