implement AppContext, add Note type, add menu

README.md

@@ -24,8 +24,9 @@ mv ketotrack $HOME/.local/bin
 ```
 
 ## Refactoring Notes
-- [ ] Create `Record` and `Note` struct types
+- [X] Create `Record` and `Note` struct types
 - [X] Add `GKI` field to `Reading` struct type
-- [ ] Encapsulate application data with an `AppContext` struct that holds a `Records` slice
-  - [ ] `LoadRecords`, `SaveRecords`, `AddReading`, `AddNote` receiver methods
+- [X] Encapsulate application data with an `AppContext` struct that holds a `Records` slice
+  - [X] `LoadRecords`, `SaveRecords`, `AddReading`, `AddNote` receiver methods
+- [X] Add interactive menu for adding either a `Note` or a `Record`
 - [ ] Standardize method names for getting user input to `handleNewNote` and `handleNewReading`

main.go

@@ -12,7 +12,7 @@ import (
 	"time"
 )
 
-var readingsFilename string
+var recordsFilename string
 
 func init() {
 	// Get user's homeDir directory
@@ -33,7 +33,7 @@ func init() {
 	}
 
 	// Set data file path for readings
-	readingsFilename = filepath.Join(ketotrackDir, "readings.json")
+	recordsFilename = filepath.Join(ketotrackDir, "records.json")
 }
 
 // Record holds a pointer to a Reading or Note.
@@ -108,21 +108,22 @@ func (ctx *AppContext) AddNote(note Note) {
 }
 
 func main() {
+	var appCtx AppContext
+
+	err := appCtx.LoadRecords(recordsFilename)
+	if err != nil {
+		fmt.Printf("Error loading records: %s\n", err)
+	}
+
+	// Display menu
+	choice, err := getUserInput("1. Enter new reading\n2. Enter new note\n3. Exit\nYour choice")
+	switch choice {
+	case "1":
 		// Take a new reading from the user
 		reading, err := getReading()
 		if err != nil {
-		fmt.Println(err.Error())
-		return
-	}
-
-	// Calculate GKI
-	//gki, err := reading.GKI()
-	//if err != nil {
-	//	fmt.Println(err.Error())
-	//	fmt.Println("You are not in ketosis.")
-	//	return
-	//}
-
+			fmt.Printf("Error getting reading: %s\n", err)
+		} else {
 			// Display GKI and level of ketosis
 			fmt.Printf("\nYour GKI is: %0.2f\n", reading.GKI)
 			switch {
@@ -137,37 +138,24 @@ func main() {
 			default:
 				fmt.Println("You are not in ketosis.")
 			}
-
-	// Save latest reading to readings file
-	readings, _ := loadReadingsFromFile(readingsFilename)
-	readings = append(readings, reading)
-	err = saveReadingsToFile(readingsFilename, readings)
-	if err != nil {
-		fmt.Printf("error saving data: %s\n", err.Error())
+			appCtx.AddReading(reading)
 		}
-}
-
-func saveReadingsToFile(filename string, data []Reading) error {
-	jsonData, err := json.Marshal(data)
+	case "2":
+		noteText, err := getUserInput("Enter your note text: ")
 		if err != nil {
-		return err
+			fmt.Println("Error getting note: %s\n", err)
+		} else {
+			appCtx.AddNote(Note{
+				Time: time.Now(),
+				Text: noteText,
+			})
 		}
-	return os.WriteFile(filename, jsonData, 0660)
-}
-
-func loadReadingsFromFile(filename string) ([]Reading, error) {
-	data, err := os.ReadFile(filename)
-	if err != nil {
-		return nil, err
+	default:
+		fmt.Println("Quitting...")
 	}
 
-	var readings []Reading
-	err = json.Unmarshal(data, &readings)
-	if err != nil {
-		return nil, err
-	}
-
-	return readings, nil
+	// Save Records before exiting
+	err = appCtx.SaveRecords(recordsFilename)
 }
 
 func getReading() (Reading, error) {