split backend and frontend

desktop-client/backend/backend.go

@@ -0,0 +1,49 @@
+package backend
+
+import "strings"
+
+type Backend struct {
+	s   *State
+	c   chan Command
+	log []string
+}
+
+func NewBackend() *Backend {
+	b := &Backend{
+		s:   NewState(),
+		c:   make(chan Command),
+		log: make([]string, 0),
+	}
+	go b.Run()
+
+	return b
+}
+
+func (b *Backend) Out() *State {
+	return b.s
+}
+
+func (b *Backend) In() chan Command {
+	return b.c
+}
+
+func (b *Backend) Run() {
+	for cmd := range b.c {
+		switch cmd.Name {
+		case CommandAdd:
+			newName, ok := cmd.Args[ArgName]
+			if ok {
+				newNameStr, ok := newName.(string)
+				if ok {
+					b.s.Watched.Append(newNameStr)
+					b.Log("Item added: " + newNameStr)
+				}
+			}
+		}
+	}
+}
+
+func (b *Backend) Log(msg string) {
+	b.log = append(b.log, msg)
+	b.s.Log.Set(strings.Join(b.log, "\n"))
+}

desktop-client/backend/command.go

@@ -0,0 +1,14 @@
+package backend
+
+const (
+	CommandAdd = "add"
+
+	ArgName = "name"
+)
+
+type CommandName string
+
+type Command struct {
+	Name string
+	Args map[string]any
+}

desktop-client/backend/state.go

@@ -0,0 +1,19 @@
+package backend
+
+import "fyne.io/fyne/v2/data/binding"
+
+type State struct {
+	Watched binding.StringList
+	Log     binding.String
+}
+
+func NewState() *State {
+	watched := binding.BindStringList(
+		&[]string{"Item 1", "Item 2", "Item 3"},
+	)
+
+	return &State{
+		Watched: watched,
+		Log:     binding.NewString(),
+	}
+}

desktop-client/gui/gui.go

@@ -1,11 +1,11 @@
 package gui
 
 import (
-	"log"
+	"code.ewintr.nl/emdb/desktop-client/backend"
-
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/app"
 	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/data/binding"
 	"fyne.io/fyne/v2/layout"
 	"fyne.io/fyne/v2/widget"
 )
@@ -13,26 +13,32 @@ import (
 type GUI struct {
 	a fyne.App
 	w fyne.Window
+	s *backend.State
+	c chan backend.Command
 }
 
-func New() *GUI {
+func New(c chan backend.Command, s *backend.State) *GUI {
 	a := app.New()
 	w := a.NewWindow("EMDB")
-
-	w.SetContent(Layout())
 	w.Resize(fyne.NewSize(800, 600))
 
-	return &GUI{
+	g := &GUI{
 		a: a,
 		w: w,
+		s: s,
+		c: c,
 	}
+
+	g.SetContent()
+
+	return g
 }
 
 func (g *GUI) Run() {
 	g.w.ShowAndRun()
 }
 
-func Layout() fyne.CanvasObject {
+func (g *GUI) SetContent() {
 	label1 := widget.NewLabel("Label 1")
 	label2 := widget.NewLabel("Label 2")
 	value2 := widget.NewLabel("Something")
@@ -43,19 +49,32 @@ func Layout() fyne.CanvasObject {
 	form := container.New(layout.NewFormLayout(), label1, input, label2, value2)
 
 	button := widget.NewButton("Save", func() {
-		log.Println("Content was:", input.Text)
+		g.c <- backend.Command{
+			Name: backend.CommandAdd,
+			Args: map[string]any{
+				backend.ArgName: input.Text,
+			},
+		}
 	})
 
 	grid := container.NewBorder(nil, button, nil, nil, form)
 
-	logLines := container.NewVScroll(widget.NewLabel("Log\n\n\n\n\n\n\n\nhoi\n\n\n\n\n\na lot"))
+	logLines := container.NewVScroll(widget.NewLabelWithData(g.s.Log))
 	//logLines.ScrollToBottom()
 
+	list := widget.NewListWithData(g.s.Watched,
+		func() fyne.CanvasObject {
+			return widget.NewLabel("template")
+		},
+		func(i binding.DataItem, o fyne.CanvasObject) {
+			o.(*widget.Label).Bind(i.(binding.String))
+		})
+
 	tabs := container.NewAppTabs(
-		container.NewTabItem("Watched", widget.NewLabel("Watched")),
+		container.NewTabItem("Watched", list),
 		container.NewTabItem("TheMovieDB", grid),
 		container.NewTabItem("Log", logLines),
 	)
 
-	return tabs
+	g.w.SetContent(tabs)
 }

desktop-client/main.go

@@ -1,8 +1,12 @@
 package main
 
-import "code.ewintr.nl/emdb/desktop-client/gui"
+import (
+	"code.ewintr.nl/emdb/desktop-client/backend"
+	"code.ewintr.nl/emdb/desktop-client/gui"
+)
 
 func main() {
-	g := gui.New()
+	b := backend.NewBackend()
+	g := gui.New(b.In(), b.Out())
 	g.Run()
 }