From 75330717c292d8db44b3fea82f6485c02c4f5b71 Mon Sep 17 00:00:00 2001
From: Edouard Paris <m@edouard.paris>
Date: Fri, 22 Mar 2019 18:14:43 +0100
Subject: [PATCH] ft views header

---
 ui/controller.go   | 28 ++++++++++++++++++++++++++++
 ui/ui.go           |  5 +++++
 ui/views/header.go | 39 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 72 insertions(+)
 create mode 100644 ui/views/header.go

diff --git a/ui/controller.go b/ui/controller.go
index 7c1c166..a938562 100644
--- a/ui/controller.go
+++ b/ui/controller.go
@@ -10,11 +10,17 @@ import (
 
 type controller struct {
 	app      *app.App
+	header   *views.Header
 	channels *views.Channels
 }
 
 func (c *controller) layout(g *gocui.Gui) error {
 	maxX, maxY := g.Size()
+	err := c.header.Set(g, 0, 0, maxX, 10)
+	if err != nil {
+		return err
+	}
+
 	return c.channels.Set(g, 0, maxY/8, maxX-1, maxY-1)
 }
 
@@ -44,8 +50,29 @@ func cursorUp(g *gocui.Gui, v *gocui.View) error {
 	return nil
 }
 
+func (c *controller) Update(ctx context.Context) error {
+	info, err := c.app.Network.Info(ctx)
+	if err != nil {
+		return err
+	}
+	c.header.Update(info.Alias, "lnd", info.Version)
+
+	channels, err := c.app.Network.ListChannels(ctx)
+	if err != nil {
+		return err
+	}
+	c.channels.Update(channels)
+	return nil
+}
+
 func (c *controller) Refresh(ctx context.Context) func(*gocui.Gui) error {
 	return func(g *gocui.Gui) error {
+		info, err := c.app.Network.Info(ctx)
+		if err != nil {
+			return err
+		}
+		c.header.Update(info.Alias, "lnd", info.Version)
+
 		channels, err := c.app.Network.ListChannels(ctx)
 		if err != nil {
 			return err
@@ -81,6 +108,7 @@ func (c *controller) setKeyBinding(g *gocui.Gui) error {
 func newController(app *app.App) *controller {
 	return &controller{
 		app:      app,
+		header:   views.NewHeader(),
 		channels: views.NewChannels(),
 	}
 }
diff --git a/ui/ui.go b/ui/ui.go
index 3b1e93d..986691e 100644
--- a/ui/ui.go
+++ b/ui/ui.go
@@ -24,6 +24,11 @@ func Run(ctx context.Context, app *app.App) error {
 		return err
 	}
 
+	err = ctrl.Update(ctx)
+	if err != nil {
+		return err
+	}
+
 	g.Update(ctrl.Refresh(ctx))
 
 	err = g.MainLoop()
diff --git a/ui/views/header.go b/ui/views/header.go
new file mode 100644
index 0000000..929c822
--- /dev/null
+++ b/ui/views/header.go
@@ -0,0 +1,39 @@
+package views
+
+import (
+	"fmt"
+
+	"github.com/jroimartin/gocui"
+)
+
+const (
+	HEADER = "myheader"
+)
+
+type Header struct {
+	alias   string
+	kind    string
+	version string
+}
+
+func (h *Header) Set(g *gocui.Gui, x0, y0, x1, y1 int) error {
+	v, err := g.SetView(HEADER, x0, y0, x1, y0+2)
+	if err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+	}
+	v.Frame = false
+	fmt.Fprintln(v, fmt.Sprintf("[%s %s %s]", h.alias, h.kind, h.version))
+	return nil
+}
+
+func (h *Header) Update(alias, kind, version string) {
+	h.alias = alias
+	h.kind = kind
+	h.version = version
+}
+
+func NewHeader() *Header {
+	return &Header{}
+}