package info

import (
	"runtime/debug"
	"time"

	"github.com/rs/zerolog/log"
)

type Data struct {
	GoVersion string
	GoArch    string
	GoOS      string
	GoC       bool
	GitCommit string
	GitDate   time.Time
	GitDirty  bool
}

func NewInfo() *Data {
	info, _ := debug.ReadBuildInfo()
	data := &Data{
		GoVersion: info.GoVersion,
	}

	// Available info: https://github.com/golang/go/blob/master/src/runtime/debug/mod.go#L73
	for _, kv := range info.Settings {
		switch kv.Key {
		case "GOARCH":
			data.GoArch = kv.Value
		case "GOOS":
			data.GoOS = kv.Value
		case "CGO_ENABLED":
			data.GoC = kv.Value == "1"
		case "vcs.revision":
			data.GitCommit = kv.Value
		case "vcs.time":
			data.GitDate, _ = time.Parse(time.RFC3339, kv.Value)
		case "vcs.modified":
			data.GitDirty = kv.Value == "true"
		}
	}

	return data
}

func (d *Data) Print() {
	log.Info().Msgf(`
clustertool is a tool for managing TrueCharts charts.

Go
	Version: %s
	OS: %s
	Arch: %s
	CGO: %t
Git
	Commit: %s
	Date: %s
	Dirty: %t
`, d.GoVersion, d.GoOS, d.GoArch, d.GoC, d.GitCommit, d.GitDate, d.GitDirty)
}