package version

import (
	"fmt"

	utilversion "k8s.io/apimachinery/pkg/util/version"
)

// ReleaseVersion represents a released version.
type ReleaseVersion struct {
	*utilversion.Version
}

// ParseGitVersion parses a git version string, such as:
// - v1.1.0-73-g7e6d4f69
// - v1.1.0
func ParseGitVersion(gitVersion string) (*ReleaseVersion, error) {
	v, err := utilversion.ParseGeneric(gitVersion)
	if err != nil {
		return nil, err
	}

	return &ReleaseVersion{
		Version: v,
	}, nil
}

// FirstMinorRelease returns the minor release but the patch releases always be 0(vx.y.0). e.g:
// - v1.2.1-12-g2eb92858 --> v1.2.0
// - v1.2.3-12-g2e860210 --> v1.2.0
func (r *ReleaseVersion) FirstMinorRelease() string {
	if r.Version == nil {
		return "<nil>"
	}

	return fmt.Sprintf("v%d.%d.0", r.Version.Major(), r.Version.Minor())
}

// PatchRelease returns the stable version with format "vx.y.z".
func (r *ReleaseVersion) PatchRelease() string {
	if r.Version == nil {
		return "<nil>"
	}

	return fmt.Sprintf("v%d.%d.%d", r.Version.Major(), r.Version.Minor(), r.Version.Patch())
}