<?php
declare (strict_types=1);

namespace app\api\model;

use app\Request;
use think\facade\Config;
use think\facade\Db;
use think\Model;

/**
 * @mixin think\Model
 */
class Field extends Common
{

    protected $table = 'bmz_field';
    protected $_data_table = 'field';
    protected $cms_table = 'bmz_cms';
    /**
     * 管理员列表数据模型
     * @return array|\think\Collection
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function index()
    {

        $this->search_arr = ['name','field'];

        $module_id = $this->request->param('module_id', 0);
        $_op = $this->field('*');

        if($module_id){
            $_op = $this->where('module_id',$module_id);
        }

        //执行通用查询
        return parent::parentLists($_op);
    }


    /**
     * 读取后
     * @param Model $model
     * @return bool|void
     */
    public static function onAfterRead(Model $model)
    {

        if (in_array(request()->action(), [ 'delete', 'status'])) {
            return true;
        }
        $m_id = $model->getAttr('module_id');
        $type = $model->getAttr('type');
        $m_model = new Module();

        if($m_id>0){
            $module_data = $m_model->find($m_id)->toArray();
            if($module_data){
                $model->setAttr('module_name',$module_data['module_name']);
            }else{
                $model->setAttr('module_name','');
            }
        }else{
            $model->setAttr('module_name','');
        }

        $cms_field_rtoes =  $lists = config('cms.field_types');
        if(isset($cms_field_rtoes[$type])){
            $model->setAttr('type_name',$cms_field_rtoes[$type]);
        }else{
            $model->setAttr('type_name','');
        }

    }


    public function delPost($ids){

        if (strpos($ids, ',') !== false) {
            return -1;
        }

        $site_id = SITE_ID;
        //获取module信息
        $m_model = new Module();
        $field_info = $this->find($ids)->toArray();
        $field = $field_info['field'];
        if(!$field_info){
            return -1;
        }
        //获取模型信息
        $module_info = $m_model->find($field_info['module_id'])->toArray();
        if(!$module_info){
            return -1;
        }
        $table_name = $this->cms_table.'_'.$module_info['table_name'].'_'.$site_id;
        $stste = $this->parentDel($ids);
        if($stste){
            //实际查询表中是否有该字段
            if ($this->_iset_field($table_name,$field )) {
                Db::execute("ALTER TABLE `{$table_name}` DROP `$field`");
            }
        }
        return $stste;

    }

    /**
     * 新增或修改前
     * @param Model $model
     * @return mixed|void
     */
//    public static function onBeforeWrite(Model $model)
//    {
//        if (!in_array(request()->action(), ['add', 'edit','dataEdit','dataAdd'])) {
//            return;
//        }
//
//
//    }

    public function addPost(){
        $_param = $this->request->post();
        if(!$_param){
            return 0;
        }
        $site_id = SITE_ID;
        //获取module信息
        $m_model = new Module();
        $module_info = $m_model->find($_param['module_id'])->toArray();
        if(!$module_info){
            return -1;
        }

        $table_name = $this->cms_table.'_'.$module_info['table_name'].'_'.$site_id;
        //数据库没有表先建立表
        $tables = Db::getTables();
        if(!in_array($table_name,$tables)){
            $t_sqlStr = "`id` int(11) unsigned NOT NULL AUTO_INCREMENT, " .
                "`common_id` int(11) NOT NULL DEFAULT '0', ";
            $t_sql = "CREATE TABLE `{$table_name}` (
              {$t_sqlStr}
              PRIMARY KEY (`id`)
            ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='".$module_info['table_comment']."'";
            Db::execute($t_sql);
        }

        // 查询字段是否已录入
        $hasIn = $this->where('field', $_param['field'])->where('module_id', $_param['module_id'])->count();
        if ($hasIn) {
            return -2;
        }

        // 查询字段是否已在表中存在
        if ($this->_iset_field($table_name, $_param['field'])) {
            return -2;
        } else {
            // 获取字段sql
            $addfieldsql = $this->get_tablesql($_param, 'add');
        }

        $field = $this->parentAdd($_param);
        if ($field) {
            // 数据库已存在字段时不再执行字段操作
            if (isset($addfieldsql) && !empty($addfieldsql)) {
                if (is_array($addfieldsql)) {
                    foreach ($addfieldsql as $sql) {
                        Db::execute($sql);
                    }
                } else {
                    Db::execute($addfieldsql);
                }
            }
        }
        return $field;
    }

    public function editPost($id){
        $_param = $this->request->post();
        if(!$_param){
            return 0;
        }
        $site_id = SITE_ID;
        //获取module信息
        $m_model = new Module();
        $module_info = $m_model->find($_param['module_id'])->toArray();
        if(!$module_info){
            return -1;
        }

        $table_name = $this->cms_table.'_'.$module_info['table_name'].'_'.$site_id;
        //数据库没有表先建立表
        $tables = Db::getTables();
        if(!in_array($table_name,$tables)){
            $t_sqlStr = "`id` int(11) unsigned NOT NULL AUTO_INCREMENT, " .
                "`common_id` int(11) NOT NULL DEFAULT '0', ";
            $t_sql = "CREATE TABLE `{$table_name}` (
              {$t_sqlStr}
              PRIMARY KEY (`id`)
            ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8 COMMENT='".$module_info['table_comment']."'";
            Db::execute($t_sql);
        }

        // 查询字段是否已在表中存在
        if (!$this->_iset_field($table_name, $_param['field'])) {
            return -2;
        } else {
            // 获取字段sql
            $editfieldsql = $this->get_tablesql($_param, 'edit');
        }

        $field = $this->parentEdit($_param,$id);
        if ($field) {
            // 数据库已存在字段时不再执行字段操作
            if (is_array($editfieldsql)) {
                foreach ($editfieldsql as $sql) {
                    Db::execute($sql);
                }
            } else {
                Db::execute($editfieldsql);
            }
        }
        return $field;
    }

    /**
     * 判断表中是否存在所选字段
     * @param $table 表全称
     * @param $field 字段名称
     * @return mixed
     */
    protected function _iset_field($table, $field)
    {
        $fields = Db::getTableFields($table);
        if (array_search($field, $fields) === false) {
            return false;
        } else {
            return true;
        }
    }


    /**
     * 获取要执行的sql
     * @param array  $info 字段信息
     * @param string $do   操作类型[add/edit]
     * @return array|string
     */
    protected function get_tablesql(array $info, string $do = 'add')
    {
        $sql = '';
        $comment = $info['name'];
        $type = $info['type'];

        $cms_field_set_ups =  $lists = config('cms.field_set_ups');
        $set_ups = $cms_field_set_ups[$type];
        $fieldtype = $set_ups?$set_ups['fieldtype']:'varchar';

        $default = $set_ups?$set_ups['default']:'varchar';
        $field = $info['field'];
        $site_id = SITE_ID;
        //获取module信息
        $m_model = new Module();
        $module_info = $m_model->find($info['module_id'])->toArray();

        $tablename = $this->cms_table.'_'.$module_info['table_name'].'_'.$site_id;

        $pk = 'id';

        $maxlength = isset($info['maxlength'])?intval($info['maxlength']):0;
        $minlength = isset($info['minlength'])?intval($info['minlength']):0;
        $numbertype = '1'; // 是否包含负数
        if ($do == 'add') {
            $do = ' ADD ';
        } else {
            $do = " CHANGE `$field` ";
        }
        // int varchart text longtext
        switch ($fieldtype){
            case 'int':
                if (!$maxlength)
                    $maxlength = 10;
                $sql = "ALTER TABLE `$tablename` $do `$field` $fieldtype( $maxlength ) "." NOT NULL DEFAULT '$default' COMMENT '$comment'";
                break;
            case 'varchar':
                if (!$maxlength) {
                    $maxlength = 255;
                }
                $maxlength = min($maxlength, 500);
                $sql = "ALTER TABLE `$tablename` $do `$field` $fieldtype( $maxlength ) NOT NULL DEFAULT '$default' COMMENT '$comment'";
                break;
            case 'text':
                $sql = "ALTER TABLE `$tablename` $do `$field` TEXT NULL COMMENT '$comment'";
                break;
            case 'longtext':
                $sql = "ALTER TABLE `$tablename` $do `$field`   LONGTEXT NULL COMMENT '$comment'";
                break;
            default:
                if (!$maxlength) {
                    $maxlength = 255;
                }
                $maxlength = min($maxlength, 255);
                $sql = "ALTER TABLE `$tablename` $do `$field` $fieldtype( $maxlength ) NOT NULL DEFAULT '$default' COMMENT '$comment'";
                break;
        }
        return $sql;
    }

}