feat: Improve editor detection with auto-discovery and better error messages (#3155)

Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>
Co-authored-by: rekram1-node <[email protected]>

1 files changed, 24 insertions, 0 deletions

diff --git a/packages/tui/internal/util/util.go b/packages/tui/internal/util/util.go
index fdefb2901..b49d2e292 100644
--- a/packages/tui/internal/util/util.go
+++ b/packages/tui/internal/util/util.go
@@ -3,6 +3,8 @@ package util
 import (
 	"log/slog"
 	"os"
+	"os/exec"
+	"runtime"
 	"strings"
 	"time"
 
@@ -45,3 +47,25 @@ func Measure(tag string) func(...any) {
 		slog.Debug(tag, args...)
 	}
 }
+
+func GetEditor() string {
+	if editor := os.Getenv("VISUAL"); editor != "" {
+		return editor
+	}
+	if editor := os.Getenv("EDITOR"); editor != "" {
+		return editor
+	}
+
+	commonEditors := []string{"vim", "nvim", "zed", "code", "cursor", "vi", "nano"}
+	if runtime.GOOS == "windows" {
+		commonEditors = []string{"vim", "nvim", "zed", "code.cmd", "cursor.cmd", "notepad.exe", "vi", "nano"}
+	}
+
+	for _, editor := range commonEditors {
+		if _, err := exec.LookPath(editor); err == nil {
+			return editor
+		}
+	}
+
+	return ""
+}