restructure

repl/main.go

@@ -0,0 +1,71 @@
+package repl
+
+import (
+	"git.red-panda.pet/pandaware/lox-go/reporter"
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/log"
+)
+
+type REPL struct {
+	input textinput.Model
+
+	history     []string
+	historySize uint
+}
+
+func NewREPL(historySize uint) REPL {
+	reporter.SetLevel(reporter.LevelDebug)
+
+	inputModel := textinput.New()
+	inputModel.Focus()
+	inputModel.Prompt = "repl> "
+	inputModel.Placeholder = "..."
+
+	return REPL{
+		history:     make([]string, historySize),
+		historySize: historySize,
+		input:       inputModel,
+	}
+}
+
+func (r REPL) Init() tea.Cmd {
+	return textinput.Blink
+}
+
+func (r REPL) handleKey(msg tea.KeyMsg) (REPL, tea.Cmd) {
+	switch msg.Type {
+	case tea.KeyEnter, tea.KeyCtrlC, tea.KeyEscape:
+		return r, tea.Quit
+	}
+	return r, nil
+}
+
+func (r REPL) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmd tea.Cmd
+
+	switch m := msg.(type) {
+	case tea.KeyMsg:
+		r, cmd = r.handleKey(m)
+		if cmd != nil {
+			return r, cmd
+		}
+	}
+
+	r.input, cmd = r.input.Update(msg)
+
+	return r, nil
+}
+
+func (r REPL) View() string {
+	return r.input.View()
+}
+
+func Run(r REPL) error {
+	p := tea.NewProgram(r)
+	if _, err := p.Run(); err != nil {
+		log.Error("error in REPL", "err", err)
+		return err
+	}
+	return nil
+}