lists

structs-practice/main.go

@@ -2,31 +2,72 @@ package main
 
 import (
 	"bufio"
-	"fmt"
 	"example.com/note/note"
+	"example.com/note/todo"
+	"fmt"
 	"os"
 	"strings"
 )
 
+type saver interface {
+	Save() error
+}
+
+// type displayer interface {
+// 	Display()
+// }
+
+type outputtable interface {
+	saver
+	Display()
+}
+
+// type outputtable interface {
+// 	Save() error
+// 	Display()
+// }
+
 func main() {
 	title, content := getNoteData()
+	todoText := getUserInput("Todo text: ")
 
-	userNote, err := note.New(title, content)
+	todo, err := todo.New(todoText)
 
 	if err != nil {
 		fmt.Println(err)
 		return
 	}
 
-	userNote.Display()
-	err = userNote.Save()
+	userNote, err := note.New(title, content)
 
 	if err != nil {
-		fmt.Println("Saving the note failed")
 		return
 	}
 
+	err = outputData(todo)
+
+	if err != nil {
+		return
+	}
+
+	outputData(userNote)
+}
+
+func outputData(data outputtable) error {
+	data.Display()
+	return saveData(data)
+}
+
+func saveData(data saver) error {
+	err := data.Save()
+
+	if err != nil {
+		fmt.Println("Saving the note failed")
+		return err
+	}
+
 	fmt.Println("Saving the note succeeded!")
+	return nil
 }
 
 func getNoteData() (string, string) {

structs-practice/todo/todo.go

@@ -0,0 +1,38 @@
+package todo
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+)
+
+type Todo struct {
+	Text string `json:"text"`
+}
+
+func (todo Todo) Display() {
+	fmt.Printf(todo.Text)
+}
+
+func (todo Todo) Save() error {
+	fileName := "todo.json"
+
+	json, err := json.Marshal(todo)
+
+	if err != nil {
+		return err
+	}
+
+	return os.WriteFile(fileName, json, 0644)
+}
+
+func New(content string) (Todo, error) {
+	if content == "" || content == "" {
+		return Todo{}, errors.New("Invalid input")
+	}
+
+	return Todo{
+		Text: content,
+	}, nil
+}