/
renderer.go
181 lines (155 loc) · 4.33 KB
/
renderer.go
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package cmd
import (
"fmt"
"io"
"strings"
"github.com/olekukonko/tablewriter"
"github.com/O1MaGnUmO1/erinaceus-vrf/core/utils"
webpresenters "github.com/O1MaGnUmO1/erinaceus-vrf/core/web/presenters"
)
// Renderer implements the Render method.
type Renderer interface {
Render(interface{}, ...string) error
}
// RendererJSON is used to render JSON data.
type RendererJSON struct {
io.Writer
}
// Render writes the given input as a JSON string.
func (rj RendererJSON) Render(v interface{}, _ ...string) error {
b, err := utils.FormatJSON(v)
if err != nil {
return err
}
// Append a new line
b = append(b, []byte("\n")...)
if _, err = rj.Write(b); err != nil {
return err
}
return nil
}
// RendererTable is used for data to be rendered as a table.
type RendererTable struct {
io.Writer
}
type TableRenderer interface {
RenderTable(rt RendererTable) error
}
// Render returns a formatted table of text for a given Job or presenter
// and relevant information.
func (rt RendererTable) Render(v interface{}, headers ...string) error {
for _, h := range headers {
fmt.Println(h)
}
switch typed := v.(type) {
case *webpresenters.ExternalInitiatorAuthentication:
return rt.renderExternalInitiatorAuthentication(*typed)
case *webpresenters.PipelineRunResource:
return rt.renderPipelineRun(*typed)
case *webpresenters.ServiceLogConfigResource:
return rt.renderLogPkgConfig(*typed)
case *[]VRFKeyPresenter:
return rt.renderVRFKeys(*typed)
case TableRenderer:
return typed.RenderTable(rt)
default:
return fmt.Errorf("unable to render object of type %T: %v", typed, typed)
}
}
func (rt RendererTable) renderLogPkgConfig(serviceLevelLog webpresenters.ServiceLogConfigResource) error {
table := rt.newTable([]string{"ID", "Service", "LogLevel"})
for i, svcName := range serviceLevelLog.ServiceName {
table.Append([]string{
serviceLevelLog.ID,
svcName,
serviceLevelLog.LogLevel[i],
})
}
render("ServiceLogConfig", table)
return nil
}
func (rt RendererTable) renderVRFKeys(keys []VRFKeyPresenter) error {
var rows [][]string
for _, key := range keys {
rows = append(rows, []string{
key.Compressed,
key.Uncompressed,
key.Hash,
})
}
renderList([]string{"Compressed", "Uncompressed", "Hash"}, rows, rt.Writer)
return nil
}
func render(name string, table *tablewriter.Table) {
table.SetRowLine(true)
table.SetColumnSeparator("║")
table.SetRowSeparator("═")
table.SetCenterSeparator("╬")
fmt.Println("╔ " + name)
table.Render()
}
func renderList(fields []string, items [][]string, writer io.Writer) {
var maxLabelLength int
for _, field := range fields {
if len(field) > maxLabelLength {
maxLabelLength = len(field)
}
}
var itemsRendered []string
var maxLineLength int
for _, row := range items {
var lines []string
for i, field := range fields {
diff := maxLabelLength - len(field)
spaces := strings.Repeat(" ", diff)
line := fmt.Sprintf("%v: %v%v", field, spaces, row[i])
for _, l := range strings.Split(line, "\n") {
if len(l) > maxLineLength {
maxLineLength = len(l)
}
}
lines = append(lines, line)
}
itemsRendered = append(itemsRendered, strings.Join(lines, "\n"))
}
divider := "\n" + strings.Repeat("-", maxLineLength) + "\n"
listRendered := divider + strings.Join(itemsRendered, divider) + divider
_, err := writer.Write([]byte(listRendered))
if err != nil {
// Handles errcheck
return
}
}
func (rt RendererTable) renderExternalInitiatorAuthentication(eia webpresenters.ExternalInitiatorAuthentication) error {
table := rt.newTable([]string{"Name", "URL", "AccessKey", "Secret", "OutgoingToken", "OutgoingSecret"})
table.Append([]string{
eia.Name,
eia.URL.String(),
eia.AccessKey,
eia.Secret,
eia.OutgoingToken,
eia.OutgoingSecret,
})
render("External Initiator Credentials:", table)
return nil
}
func (rt RendererTable) newTable(headers []string) *tablewriter.Table {
table := tablewriter.NewWriter(rt)
table.SetHeader(headers)
return table
}
func (rt RendererTable) renderPipelineRun(run webpresenters.PipelineRunResource) error {
table := rt.newTable([]string{"ID", "Created At", "Finished At"})
var finishedAt string
if !run.FinishedAt.IsZero() {
finishedAt = run.FinishedAt.ValueOrZero().String()
}
row := []string{
run.GetID(),
run.CreatedAt.String(),
finishedAt,
}
table.Append(row)
render("Pipeline Run", table)
return nil
}