Initial commit

internal/tui/editor_picker.go

@@ -0,0 +1,78 @@
+package tui
+
+import (
+	"os/exec"
+)
+
+// candidateEditors is the ordered list shown in the picker.
+// Only editors actually found on PATH are offered.
+var candidateEditors = []struct {
+	bin   string // executable name
+	label string // human-readable label
+}{
+	{"nvim", "Neovim"},
+	{"vim", "Vim"},
+	{"vi", "Vi"},
+	{"nano", "Nano"},
+	{"micro", "Micro"},
+	{"hx", "Helix"},
+	{"emacs", "Emacs (terminal)"},
+	{"code", "VS Code (code --wait)"},
+	{"gedit", "Gedit"},
+	{"kate", "Kate"},
+}
+
+type editorChoice struct {
+	bin   string
+	label string
+	// For VS Code we need the --wait flag so the terminal blocks until closed.
+	args []string
+}
+
+// availableEditors returns only the editors found on the current PATH.
+func availableEditors() []editorChoice {
+	var found []editorChoice
+	for _, c := range candidateEditors {
+		if path, err := exec.LookPath(c.bin); err == nil {
+			choice := editorChoice{bin: path, label: c.label}
+			if c.bin == "code" {
+				choice.args = []string{"--wait"}
+			}
+			found = append(found, choice)
+		}
+	}
+	return found
+}
+
+// editorCommand returns (binary, extraArgs) for a saved editor string.
+// e.g. "code --wait" → ("code", ["--wait"])
+func editorCommand(saved string) (string, []string) {
+	if saved == "" {
+		return "", nil
+	}
+	// Handle "code --wait" style strings stored in config
+	parts := splitArgs(saved)
+	if len(parts) == 1 {
+		return parts[0], nil
+	}
+	return parts[0], parts[1:]
+}
+
+func splitArgs(s string) []string {
+	var out []string
+	cur := ""
+	for _, r := range s {
+		if r == ' ' {
+			if cur != "" {
+				out = append(out, cur)
+				cur = ""
+			}
+		} else {
+			cur += string(r)
+		}
+	}
+	if cur != "" {
+		out = append(out, cur)
+	}
+	return out
+}