changes

type ChangeReportComponent struct {
	Left  interface{}            `json:"left"`
	Right interface{}            `json:"right"`
	About map[string]interface{} `json:"about,omitempty"`
}

type ChangeReportDeltaComponent struct {
	ChangeReportComponent
	Title string      `json:"title,omitempty"`
	Delta interface{} `json:"delta"`
}

type ChangeReportResponse struct {
	VersionInfo *ChangeReportComponent `json:"version_info,omitempty"`
	Commit      *ChangeReportComponent `json:"commit,omitempty"`
	Meta        *ChangeReportComponent `json:"meta,omitempty"`
	Readme      *ChangeReportComponent `json:"readme,omitempty"`
	Structure   *ChangeReportComponent `json:"structure,omitempty"`
	Transform   *ChangeReportComponent `json:"transform,omitempty"`
	Stats       *StatsChangeComponent  `json:"stats,omitempty"`
}

type EmptyObject map[string]interface{}

type Service interface {
	Report(ctx context.Context, leftRef, rightRef string) (*ChangeReportResponse, error)
}

type StatsChangeComponent struct {
	Summary *ChangeReportDeltaComponent   `json:"summary"`
	Columns []*ChangeReportDeltaComponent `json:"columns"`
}

type StatsChangeSummaryFields struct {
	Entries int `json:"entries"`
	Columns int `json:"columns"`
	// NullValues int `json:"nullValues"`
	TotalSize int `json:"totalSize"`
}