From 125aa05e0dc3ee9380317c04cbaa9006fd32a711 Mon Sep 17 00:00:00 2001
From: Oliver Davies <oliver@oliverdavies.uk>
Date: Wed, 24 Sep 2025 19:35:56 +0100
Subject: [PATCH] Add `edit` command to edit a zettel

Signed-off-by: Oliver Davies <oliver@oliverdavies.uk>
---
 cmd/edit.go          | 36 ++++++++++++++++++++++++++++++++++++
 cmd/root.go          |  1 +
 internal/lib/file.go | 15 +++++++++++++++
 internal/lib/run.go  | 22 ++++++++++++++++++++++
 internal/lib/zet.go  |  6 ++++++
 5 files changed, 80 insertions(+)
 create mode 100644 cmd/edit.go
 create mode 100644 internal/lib/run.go

diff --git a/cmd/edit.go b/cmd/edit.go
new file mode 100644
index 0000000..ea5fba5
--- /dev/null
+++ b/cmd/edit.go
@@ -0,0 +1,36 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+
+	"github.com/spf13/cobra"
+
+	"code.oliverdavies.uk/opdavies/cmd-zet/internal/lib"
+)
+
+var editCmd = &cobra.Command{
+	Use:     "edit",
+	Aliases: []string{"e"},
+	Short:   "A brief description of your command",
+	Long: `A longer description that spans multiple lines and likely contains examples
+and usage of using your command. For example:
+
+Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		if len(args) < 1 {
+			fmt.Println("Error: No id provided")
+			os.Exit(1)
+		}
+
+		idInt, err := strconv.Atoi(args[0])
+		if err != nil {
+			os.Exit(1)
+		}
+
+		lib.EditZet(idInt)
+	},
+}
diff --git a/cmd/root.go b/cmd/root.go
index d94759f..6b68650 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -31,6 +31,7 @@ func Execute() {
 }
 
 func init() {
+	rootCmd.AddCommand(editCmd)
 	rootCmd.AddCommand(findCmd)
 	rootCmd.AddCommand(titlesCmd)
 	rootCmd.AddCommand(viewCmd)
diff --git a/internal/lib/file.go b/internal/lib/file.go
index 254a95b..77781e7 100644
--- a/internal/lib/file.go
+++ b/internal/lib/file.go
@@ -5,6 +5,21 @@ import (
 	"os"
 )
 
+func EditFile(filePath string) {
+	if _, err := os.Stat(filePath); os.IsNotExist(err) {
+		fmt.Printf("Error: The file for path '%s' was not found\n", filePath)
+		os.Exit(1)
+	}
+
+	editor := os.Getenv("EDITOR")
+
+	err := Exec(editor, filePath)
+
+	if err != nil {
+		fmt.Println(err)
+	}
+}
+
 func ViewFile(filePath string) string {
 	if _, err := os.Stat(filePath); os.IsNotExist(err) {
 		fmt.Printf("Error: The file for path '%s' was not found\n", filePath)
diff --git a/internal/lib/run.go b/internal/lib/run.go
new file mode 100644
index 0000000..48318ff
--- /dev/null
+++ b/internal/lib/run.go
@@ -0,0 +1,22 @@
+package lib
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+)
+
+func Exec(args ...string) error {
+	path, err := exec.LookPath(args[0])
+
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	cmd := exec.Command(path, args[1:]...)
+	cmd.Stderr = os.Stderr
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+
+	return cmd.Run()
+}
diff --git a/internal/lib/zet.go b/internal/lib/zet.go
index 4ca8c9d..2e2f50d 100644
--- a/internal/lib/zet.go
+++ b/internal/lib/zet.go
@@ -12,6 +12,12 @@ import (
 	"strings"
 )
 
+func EditZet(id int) {
+	zetPath := path.Join(GetZetDir(), strconv.Itoa(id), "index.adoc")
+
+	EditFile(zetPath)
+}
+
 func GetAllZets() []int {
 	zets, err := execGitCommand("ls-files")