package host

import (
	"net/http"
	"strconv"
)

// QueryHostRequest code
type QueryHostRequest struct {
	PageSize   int    `json:"page_size"`   // 大小
	PageNumber int    `json:"page_number"` // 第几页
	KeyWords   string `json:"keywords"`
}

func NewQueryHostRequest() *QueryHostRequest {
	return &QueryHostRequest{
		PageSize:   20,
		PageNumber: 1,
	}
}

func (q *QueryHostRequest) Offset() int64 {
	return int64((q.PageNumber - 1) * q.PageSize)
}

func (q *QueryHostRequest) PageSize2uint() uint {
	return uint(q.PageSize)
}

// QueryHostFromHTTP - 从GET请求中获取请求内需要的参数
// http://127.0.0.1:8080/host/query/?page_size=20&page_number=1&keyword=Resource
func QueryHostFromHTTP(r *http.Request) *QueryHostRequest {
	//获取参数
	qs := r.URL.Query()
	req := NewQueryHostRequest()

	//需要先判定是否为空，否则转换会报错
	if qs.Get("page_size") != "" && qs.Get("page_number") != "" {
		req.PageSize, _ = strconv.Atoi(qs.Get("page_size"))
		req.PageNumber, _ = strconv.Atoi(qs.Get("page_number"))
	}
	req.KeyWords = qs.Get("keyword")

	return req
}

// DescribeHostRequest code
type DescribeHostRequest struct {
	Id string
}

func NewDescribeHostRequestWithId(id string) *DescribeHostRequest {
	return &DescribeHostRequest{
		Id: id,
	}
}

// UpdateHostRequest code
type UPDATE_MODE string

const (
	UPDATE_PUT   UPDATE_MODE = "put"   // 全量更新
	UPDATE_PATCH UPDATE_MODE = "patch" //局部更新
)

type UpdateHostRequest struct {
	UpdateMode UPDATE_MODE `json:"update_mode"` // 强制规范字段可选在可控范围内
	Id         string      `json:"id"`          // 更新数据的id
	/*	describe     *Describe
		resource     *Resource*/
	//UpdateFields map[string]interface{} `json:"updateFields"`
	Ins *Host `json:"host"` // 增量ins 通过body获取
	/*	FieldName       []string               `json:"fieldName"`
		Value           []interface{}          `json:"value"`*/
	ResourceUpdates map[string]interface{} `json:"resource_updates"`
	DescribeUpdates map[string]interface{} `json:"describe_updates"`
}

func NewUpdateHostRequest(id string) *UpdateHostRequest {
	return &UpdateHostRequest{
		Id: id,
	}
}

// DeleteHostRequest code
type DeleteHostRequest struct {
}