prepared json saving, added some code structuring

manage_data.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"encoding/json"
+	"log"
+	"os"
+)
+
+type Tags struct {
+	Tags map[string]string `json:"tags"`
+}
+
+func readTags(filename string) (*Tags, error) {
+	bytes, err := os.ReadFile(filename)
+	if err != nil {
+		return nil, err
+	}
+
+	var tags Tags
+	err = json.Unmarshal(bytes, &tags)
+	if err != nil {
+		return nil, err
+	}
+
+	return &tags, nil
+}
+
+func writeTags(filename string, tags *Tags) error {
+	jsonBytes, err := json.MarshalIndent(tags, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	err = os.WriteFile(filename, jsonBytes, 0644)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func addTag(tags *Tags, tagKey string, tagValue string) {
+	tags.Tags[tagKey] = tagValue
+}
+
+func removeTag(tags *Tags, tagKey string) {
+	delete(tags.Tags, tagKey)
+}
+
+func modifyTag(tags *Tags, tagKey string, newTagValue string) {
+	if _, exists := tags.Tags[tagKey]; exists {
+		tags.Tags[tagKey] = newTagValue
+	}
+}
+
+func debugTags() {
+	tags, err := readTags("tags.json")
+	if err != nil {
+		log.Fatalf("Failed to read tags: %v", err)
+	}
+
+	addTag(tags, "new_command", "a new command description")
+	removeTag(tags, "test_command")
+	modifyTag(tags, "another_test_command", "updated command description")
+
+	err = writeTags("tags.json", tags)
+	if err != nil {
+		log.Fatalf("Failed to write tags: %v", err)
+	}
+}