feat: add main application logic and model implementation with tests

cmd/termtier/main.go

@@ -0,0 +1,51 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+
+	"github.com/StevanFreeborn/term-tier/internal/handlers"
+	"github.com/StevanFreeborn/term-tier/internal/model"
+	"github.com/StevanFreeborn/term-tier/internal/persistence"
+	"github.com/StevanFreeborn/term-tier/internal/state"
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+var (
+	version = "dev"
+	commit  = "none"
+	date    = "unknown"
+)
+
+func main() {
+	showVersion := flag.Bool("version", false, "print version and exit")
+	flag.Parse()
+
+	if *showVersion {
+		fmt.Printf("termtier %s\n", version)
+		fmt.Printf("build date: %s\n", date)
+		fmt.Printf("commit: %s\n", commit)
+		os.Exit(0)
+	}
+
+	saver := persistence.NewFileSaver()
+
+	s := state.New()
+
+	keyMsgHandlers := handlers.GetAllKeyHandlers(saver)
+	winSizeMsgHandlers := handlers.GetAllWinSizeHandlers()
+
+	m := model.New(
+		s,
+		model.WithKeyMsgHandlers(keyMsgHandlers),
+		model.WithWinSizeMsgHandlers(winSizeMsgHandlers),
+	)
+
+	p := tea.NewProgram(m, tea.WithAltScreen())
+
+	if _, err := p.Run(); err != nil {
+		fmt.Printf("Error: %v", err)
+		os.Exit(1)
+	}
+}