added periodic actions (licence verification, statistics report, start with nag window)

client/backend.go

@@ -15,6 +15,7 @@ const (
 	statisticsPath   = "/telemetry/statistics"
 	crashPath        = "/telemetry/crash"
 	registrationPath = "/license/registration"
+	verificationPath = "/license/verification"
 	jsonContentType  = "application/json"
 )
 
@@ -44,8 +45,18 @@ func (c *BackendClient) ReportInstallation(statistics *metadata.Statistics) {
 	}
 }
 
-func (c *BackendClient) ReportUsageStatistics(error string, statistics *metadata.Statistics) {
+func (c *BackendClient) ReportStatistics(statistics *metadata.Statistics) {
-	// TODO
+
+	buf := new(bytes.Buffer)
+	err := json.NewEncoder(buf).Encode(statistics)
+	if err != nil {
+		c.ReportCrash(err.Error(), statistics)
+	}
+
+	_, err = http.Post(backendUrl+statisticsPath, jsonContentType, buf)
+	if err != nil {
+		c.ReportCrash(err.Error(), statistics)
+	}
 }
 
 func (c *BackendClient) ReportCrash(error string, statistics *metadata.Statistics) {
@@ -100,3 +111,35 @@ func (c *BackendClient) RegisterLicenseKey(licenseKey string, statistics *metada
 
 	return &license, nil
 }
+
+func (c *BackendClient) VerifyLicenseKey(licenseKey string) (*metadata.License, error) {
+
+	req := struct {
+		LicenseKey string
+	}{
+		licenseKey,
+	}
+
+	buf := new(bytes.Buffer)
+	err := json.NewEncoder(buf).Encode(req)
+	if err != nil {
+		c.ReportCrash(err.Error(), nil)
+	}
+
+	response, err := http.Post(
+		backendUrl+verificationPath, jsonContentType, buf)
+
+	if err != nil {
+		return nil, err
+	}
+
+	if response.StatusCode != 200 {
+		body, _ := ioutil.ReadAll(response.Body)
+		return nil, errors.New(string(body))
+	}
+
+	var license metadata.License
+	json.NewDecoder(response.Body).Decode(&license)
+
+	return &license, nil
+}

component/intro.go

@@ -63,30 +63,21 @@ func NewIntro(palette console.Palette) *Intro {
 
 func (intro *Intro) Draw(buffer *ui.Buffer) {
 
-	logo := []string{
+	introText := append(util.AsciiLogo, []string{
-		"                               __         ",
-		"   _________  ____ ___  ____  / /__  _____",
-		"  / ___/ __ `/ __ `__ \\/ __ \\/ / _ \\/ ___/",
-		" (__  ) /_/ / / / / / / /_/ / /  __/ /    ",
-		"/____/\\__,_/_/ /_/ /_/ .___/_/\\___/_/     ",
-		"                    /_/                   ",
-	}
-
-	introText := append(logo, []string{
 		"", "", "",
 		"Welcome.",
 		"Sampler is free of charge for personal use, but license must be purchased to use it for business purposes.",
-		"Clicking below indicates you agree to the terms of the license agreement and privacy policy: www.sampler.dev/license",
+		"By proceeding, you agree to the terms of the license agreement and privacy policy: www.sampler.dev/license",
 		"", "", "",
 		"How do you plan to use Sampler?",
 	}...)
 
-	commericalText := append(logo, []string{
+	commericalText := append(util.AsciiLogo, []string{
 		"", "", "", "",
 		"Please visit www.sampler.dev to purchase a license and then start Sampler with --license flag",
 	}...)
 
-	personalText := append(logo, []string{
+	personalText := append(util.AsciiLogo, []string{
 		"", "", "", "",
 		"Sampler is always free for non-commercial use, but you can support the project and buy a personal license:",
 		"www.sampler.dev",

component/layout/layout.go

@@ -10,6 +10,7 @@ import (
 	"github.com/sqshq/sampler/data"
 	"image"
 	"math"
+	"time"
 )
 
 type Layout struct {
@@ -18,10 +19,12 @@ type Layout struct {
 	statusbar        *component.StatusBar
 	menu             *component.Menu
 	intro            *component.Intro
+	nag              *component.NagWindow
 	ChangeModeEvents chan Mode
 	mode             Mode
 	selection        int
 	positionsChanged bool
+	startupTime      time.Time
 }
 
 type Mode rune
@@ -29,25 +32,28 @@ type Mode rune
 const (
 	ModeDefault          Mode = 0
 	ModeIntro            Mode = 1
-	ModePause            Mode = 2
+	ModeNag              Mode = 2
-	ModeComponentSelect  Mode = 3
+	ModePause            Mode = 3
-	ModeMenuOptionSelect Mode = 4
+	ModeComponentSelect  Mode = 4
-	ModeComponentMove    Mode = 5
+	ModeMenuOptionSelect Mode = 5
-	ModeComponentResize  Mode = 6
+	ModeComponentMove    Mode = 6
-	ModeChartPinpoint    Mode = 7
+	ModeComponentResize  Mode = 7
+	ModeChartPinpoint    Mode = 8
 )
 
 const (
-	minDimension    = 3
+	minDimension         = 3
-	statusbarHeight = 1
+	statusbarHeight      = 1
+	nagWindowDurationSec = 5
 )
 
-func NewLayout(statusline *component.StatusBar, menu *component.Menu, intro *component.Intro) *Layout {
+func NewLayout(statusline *component.StatusBar, menu *component.Menu, intro *component.Intro, nag *component.NagWindow) *Layout {
 
 	width, height := ui.TerminalDimensions()
 	block := *ui.NewBlock()
 	block.SetRect(0, 0, width, height)
 	intro.SetRect(0, 0, width, height)
+	nag.SetRect(0, 0, width, height)
 	statusline.SetRect(0, height-statusbarHeight, width, height)
 
 	return &Layout{
@@ -56,9 +62,11 @@ func NewLayout(statusline *component.StatusBar, menu *component.Menu, intro *com
 		statusbar:        statusline,
 		menu:             menu,
 		intro:            intro,
+		nag:              nag,
 		mode:             ModeDefault,
 		selection:        0,
 		ChangeModeEvents: make(chan Mode, 10),
+		startupTime:      time.Now(),
 	}
 }
 
@@ -66,10 +74,14 @@ func (l *Layout) AddComponent(cpt *component.Component) {
 	l.Components = append(l.Components, cpt)
 }
 
-func (l *Layout) RunIntro() {
+func (l *Layout) StartWithIntro() {
 	l.mode = ModeIntro
 }
 
+func (l *Layout) StartWithNagWindow() {
+	l.mode = ModeNag
+}
+
 func (l *Layout) changeMode(m Mode) {
 	if m == ModeComponentResize || m == ModeComponentMove {
 		l.positionsChanged = true
@@ -79,7 +91,7 @@ func (l *Layout) changeMode(m Mode) {
 }
 
 func (l *Layout) HandleMouseClick(x int, y int) {
-	if l.mode == ModeIntro {
+	if l.mode == ModeIntro || l.mode == ModeNag {
 		return
 	}
 	l.menu.Idle()
@@ -145,6 +157,8 @@ func (l *Layout) HandleKeyboardEvent(e string) {
 			} else {
 				l.changeMode(ModeDefault)
 			}
+		case ModeNag:
+			l.nag.Accept()
 		}
 	case console.KeyEsc:
 		l.resetAlerts()
@@ -310,15 +324,28 @@ func (l *Layout) Draw(buffer *ui.Buffer) {
 	columnWidth := float64(l.GetRect().Dx()) / float64(console.ColumnsCount)
 	rowHeight := float64(l.GetRect().Dy()-statusbarHeight) / float64(console.RowsCount)
 
+	for _, c := range l.Components {
+		rectangle := calculateComponentCoordinates(c, columnWidth, rowHeight)
+		c.SetRect(rectangle.Min.X, rectangle.Min.Y, rectangle.Max.X, rectangle.Max.Y)
+	}
+
 	if l.mode == ModeIntro {
 		l.intro.SetRect(l.Min.X, l.Min.Y, l.Max.X, l.Max.Y)
 		l.intro.Draw(buffer)
 		return
 	}
 
+	if l.mode == ModeNag {
+		if l.nag.IsAccepted() && time.Since(l.startupTime).Seconds() > nagWindowDurationSec {
+			l.mode = ModeDefault
+		} else {
+			l.nag.SetRect(l.Min.X, l.Min.Y, l.Max.X, l.Max.Y)
+			l.nag.Draw(buffer)
+			return
+		}
+	}
+
 	for _, c := range l.Components {
-		rectangle := calculateComponentCoordinates(c, columnWidth, rowHeight)
-		c.SetRect(rectangle.Min.X, rectangle.Min.Y, rectangle.Max.X, rectangle.Max.Y)
 		c.Draw(buffer)
 	}
 

component/nag.go

@@ -0,0 +1,53 @@
+package component
+
+import (
+	ui "github.com/gizak/termui/v3"
+	"github.com/sqshq/sampler/component/util"
+	"github.com/sqshq/sampler/console"
+)
+
+type NagWindow struct {
+	*ui.Block
+	palette  console.Palette
+	accepted bool
+}
+
+func NewNagWindow(palette console.Palette) *NagWindow {
+	return &NagWindow{
+		Block:    NewBlock("", false, palette),
+		palette:  palette,
+		accepted: false,
+	}
+}
+
+func (n *NagWindow) Accept() {
+	n.accepted = true
+}
+
+func (n *NagWindow) IsAccepted() bool {
+	return n.accepted
+}
+
+func (n *NagWindow) Draw(buffer *ui.Buffer) {
+
+	text := append(util.AsciiLogo, []string{
+		"", "", "",
+		"Thank you for using Sampler.",
+		"It is always free for non-commercial use, but you can support the project and buy a personal license.",
+		"",
+		"Please visit www.sampler.dev",
+	}...)
+
+	for i, a := range text {
+		util.PrintString(
+			a,
+			ui.NewStyle(n.palette.BaseColor),
+			util.GetMiddlePoint(n.Block.Rectangle, a, i-15),
+			buffer)
+	}
+
+	buffer.SetString(string(buttonOk), ui.NewStyle(n.palette.ReverseColor, n.palette.BaseColor),
+		util.GetMiddlePoint(n.Block.Rectangle, string(buttonOk), 4))
+
+	n.Block.Draw(buffer)
+}

component/util/format.go

@@ -9,6 +9,15 @@ import (
 	"strings"
 )
 
+var AsciiLogo = []string{
+	"                               __         ",
+	"   _________  ____ ___  ____  / /__  _____",
+	"  / ___/ __ `/ __ `__ \\/ __ \\/ / _ \\/ ___/",
+	" (__  ) /_/ / / / / / / /_/ / /  __/ /    ",
+	"/____/\\__,_/_/ /_/ /_/ .___/_/\\___/_/     ",
+	"                    /_/                   ",
+}
+
 func FormatValue(value float64, scale int) string {
 	if math.Abs(value) == math.MaxFloat64 {
 		return "Inf"

example_int_shell.yml

@@ -1,33 +0,0 @@
-variables:
-  PGPASSWORD: fred
-  mongoconnection: mongo --quiet --host=localhost blog
-  mysqlconnection: mysql -u root -s --database mysql --skip-column-names
-  neo4jconnection: cypher-shell -u neo4j -p 121314 --format plain
-  postgresconnection: psql -h localhost -U postgres --no-align --tuples-only
-  sshconnection: ssh -i ~/sqshq.pem ec2-user@3.215.108.82
-textboxes:
-- title: Neo4j
-  position: [[0, 0], [10, 40]]
-  pty: true
-  init: $neo4jconnection
-  sample: RETURN rand();
-  transform: echo "$sample" | tail -n 1
-- title: Postgres
-  position: [[10, 0], [9, 40]]
-  init: $postgresconnection
-  sample: select random();
-- title: MySQL
-  position: [[19, 0], [10, 40]]
-  pty: true
-  init: $mysqlconnection
-  sample: select rand();
-- title: MongoDB
-  position: [[29, 0], [10, 40]]
-  rate-ms: 500
-  init: $mongoconnection
-  sample: sleep(3000);Date.now();
-- title: SSH
-  position: [[39, 0], [41, 40]]
-  pty: true
-  init: $sshconnection
-  sample: top

main.go

@@ -89,18 +89,23 @@ func main() {
 	defer player.Close()
 
 	palette := console.GetPalette(*cfg.Theme)
-	lout := layout.NewLayout(
+	lout := layout.NewLayout(component.NewStatusLine(*opt.ConfigFile, palette, license),
-		component.NewStatusLine(*opt.ConfigFile, palette, license), component.NewMenu(palette), component.NewIntro(palette))
+		component.NewMenu(palette), component.NewIntro(palette), component.NewNagWindow(palette))
 
 	if statistics.LaunchCount == 0 {
 		if !opt.DisableTelemetry {
 			go bc.ReportInstallation(statistics)
 		}
-		lout.RunIntro()
+		lout.StartWithIntro()
-	} else /* with random */ {
+	} else if statistics.LaunchCount%20 == 0 { // once in a while
-		// TODO if license == nil lout.showNagWindow() with timeout and OK button
+		if license == nil || !license.Valid {
-		// TODO if license != nil, verify license
+			lout.StartWithNagWindow()
-		// TODO report statistics
+		} else {
+			go verifyLicense(license, bc)
+		}
+		if !opt.DisableTelemetry {
+			go bc.ReportStatistics(statistics)
+		}
 	}
 
 	metadata.PersistStatistics(cfg)
@@ -130,3 +135,10 @@ func registerLicense(statistics *metadata.Statistics, opt config.Options, bc *cl
 		console.Exit("License successfully verified, Sampler can be restarted without --license flag now. Thank you.")
 	}
 }
+
+func verifyLicense(license *metadata.License, bc *client.BackendClient) {
+	verifiedLicense, _ := bc.VerifyLicenseKey(*license.Key)
+	if verifiedLicense != nil {
+		metadata.SaveLicense(*verifiedLicense)
+	}
+}