entity

type City struct {
	ID   int     `json:"id"`
	Name *string `json:"name"`
}

type CityConnection struct {
	Edges      []CityEdge     `json:"edges"`
	PageInfo   relay.PageInfo `json:"pageInfo"`
	TotalCount *int           `json:"totalCount"`
}

type CityCursor struct {
	Offset int    `json:"offset"`
	ID     string `json:"id"`
}

type CityEdge struct {
	Cursor string `json:"cursor"`
	Node   *City  `json:"node"`
}

type CityPaginationFunc = func(offset, limit int) (items []*City, total *int, err error)

type Connection interface {
	IsConnection()
}

type CursorPaginationInput struct {
	First  *int      `json:"first"`
	After  *string   `json:"after"`
	Last   *int      `json:"last"`
	Before *string   `json:"before"`
	SortBy []*string `json:"sortBy"`
}

type Edge interface {
	IsEdge()
}

type PageInfo struct {
	HasNextPage     bool    `json:"hasNextPage"`
	HasPreviousPage bool    `json:"hasPreviousPage"`
	StartCursor     *string `json:"startCursor"`
	EndCursor       *string `json:"endCursor"`
}

type PagePaginationInput struct {
	SortBy []*string `json:"sortBy"`
	Limit  *int      `json:"limit"`
	Page   *int      `json:"page"`
}

type Pagination struct {
	CurrentPage     *int      `json:"current_page"`
	CurrentElements *int      `json:"current_elements"`
	TotalPages      *int      `json:"total_pages"`
	TotalElements   *int      `json:"total_elements"`
	SortBy          *[]string `json:"sort_by,omitempty"`
	CursorStart     *string   `json:"cursor_start,omitempty"`
	CursorEnd       *string   `json:"cursor_end,omitempty"`
}

type ParamCityInput struct {
	ID []*int `json:"id"`
}