Add view command

Signed-off-by: Oliver Davies <oliver@oliverdavies.uk>

internal/lib/file.go

@@ -0,0 +1,22 @@
+package lib
+
+import (
+	"fmt"
+	"os"
+)
+
+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)
+		os.Exit(1)
+	}
+
+	content, err := os.ReadFile(filePath)
+
+	if err != nil {
+		fmt.Println("Error opening the file:", err)
+		os.Exit(1)
+	}
+
+	return string(content)
+}

internal/lib/zet.go

@@ -60,6 +60,12 @@ func ParseZetList(ids []int) []string {
 	return lines
 }
 
+func ViewZet(zetDir string, id int) string {
+	zetPath := path.Join(zetDir, strconv.Itoa(id), "index.adoc")
+
+	return ViewFile(zetPath)
+}
+
 func getTitle(id int) string {
 	return getTitleFromFile(path.Join(strconv.Itoa(id), "index.adoc"))
 }