info.go

package main

import (
	"crypto/sha256"
	"fmt"
	"runtime"
	"strings"
	"time"

	"github.com/ethereum/go-ethereum/common/hexutil"
	"github.com/gdamore/tcell/v2"
	"github.com/rivo/tview"
)

func infoWindow() (content *tview.Flex) {
	layoutInfo = tview.NewFlex()
	layoutInfo.SetDirection(tview.FlexRow)
	layoutInfo.SetBorder(true)
	layoutInfo.SetTitle(S_MAIN_FRAME_TITLE)
	layoutInfo.SetTitleColor(tcell.ColorWhite)
	layoutInfo.SetBorderColor(tcell.ColorWhite)
	layoutInfo.SetBackgroundColor(tcell.ColorBlue)
	refreshInfo()
	return layoutInfo
}

func refreshInfo() {
	layoutInfo.Clear()
	layoutInfo.AddItem(infoMasterKey(), 0, 1, false)

	// scroll to end to align text to bottom
	operations := infoInstructions()
	layoutInfo.AddItem(operations, 0, 1, false)
	operations.ScrollToEnd()
}

// master key info textview
func infoMasterKey() *tview.TextView {
	textview := tview.NewTextView()
	textview.SetDynamicColors(true)
	textview.SetBackgroundColor(tcell.ColorBlue)
	textview.SetWrap(true)

	if masterKey != nil {
		md := sha256.Sum256(masterKey.masterKey[:])
		fmt.Fprintf(textview, S_INFOBOX_KEYINFO,
			VERSION,
			masterKey.path,
			hexutil.Encode(md[:]),
			time.Unix(masterKey.createdAt, 0).Local().Format(time.RFC822),
			len(masterKey.labels),
			runtime.GOOS,
			runtime.GOARCH,
		)
	} else {
		fmt.Fprintf(textview, S_INFOBOX_KEYINFO,
			VERSION,
			"N/A",
			"N/A",
			"N/A",
			"N/A",
			runtime.GOOS,
			runtime.GOARCH,
		)
	}
	return textview
}

// instructions info textview
func infoInstructions() *tview.TextView {
	textview := tview.NewTextView()
	textview.SetDynamicColors(true)
	textview.SetWrap(true)
	textview.SetWordWrap(true)
	textview.SetBackgroundColor(tcell.ColorBlue)
	fmt.Fprint(textview, strings.Repeat("\n", 100))
	fmt.Fprint(textview, S_INFOBOX_INSTRUCTIONS)
	return textview
}