Lesson 12 feat: Corrected line split

lesson_12/io/io_app/src/main/java/com/codedifferently/lesson12/factory/natayaprice/CsvDataLoader.java

@@ -0,0 +1,115 @@
+package com.codedifferently.lesson12.factory.natayaprice;
+
+import com.codedifferently.lesson12.factory.LibraryCsvDataLoader;
+import com.codedifferently.lesson12.models.CheckoutModel;
+import com.codedifferently.lesson12.models.LibraryDataModel;
+import com.codedifferently.lesson12.models.LibraryGuestModel;
+import com.codedifferently.lesson12.models.MediaItemModel;
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import org.springframework.stereotype.Service;
+
+@Service
+public class CsvDataLoader implements LibraryCsvDataLoader {
+ @Override
+ public LibraryDataModel loadData() {
+ var model = new LibraryDataModel();
+ model.mediaItems = new ArrayList<>(); // You load this from the file
+ model.guests = new ArrayList<>(); // You also load this from the file.
+
+ // STEP 1: Load each file into it's own collection
+ List<MediaItemModel> mediaItems =
+ readMediaItems(
+ "/workspaces/NatayaPcode-differently-24-q1/lesson_12/io/io_app/src/main/java/com/codedifferently/lesson12/models/MediaItemModel.java");
+ List<LibraryGuestModel> guests =
+ readGuests(
+ "/workspaces/NatayaPcode-differently-24-q1/lesson_12/io/io_app/src/main/java/com/codedifferently/lesson12/models/LibraryGuestModel.java");
+ Map<String, List<CheckoutModel>> checkoutsByGuestEmail =
+ readCheckoutsByGuestEmail(
+ "/workspaces/NatayaPcode-differently-24-q1/lesson_12/io/io_app/src/main/java/com/codedifferently/lesson12/models/CheckoutModel.java");
+
+ // STEP 2: Combine checkouts with guests.
+ for (var guest : guests) {
+ var checkouts = checkoutsByGuestEmail.get(guest.email);
+ if (checkouts != null) {
+ guest.checkedOutItems = checkouts;
+ }
+ }
+
+ return model;
+ }
+
+ private List<MediaItemModel> readMediaItems(String string) {
+ try (var reader = new BufferedReader(new FileReader(string))) {
+ var items = new ArrayList<MediaItemModel>();
+ String line;
+ while ((line = reader.readLine()) != null) {
+ reader.readLine();
+ var parts = line.split(",");
+ var item = new MediaItemModel();
+
+ item.type = parts[0];
+ item.id = UUID.fromString(parts[1]);
+ item.title = parts[2];
+ item.type = parts[3];
+ items.add(item);
+ }
+ return items;
+ } catch (IOException e) {
+ throw new RuntimeException("Failed to read media items", e);
+ }
+ }
+
+ private List<LibraryGuestModel> readGuests(String filePath) {
+ try (var reader = new BufferedReader(new FileReader(filePath))) {
+ var guests = new ArrayList<LibraryGuestModel>();
+ String line;
+ while ((line = reader.readLine()) != null) {
+ reader.readLine();
+ var parts = line.split(",");
+ var guest = new LibraryGuestModel();
+
+ guest.name = parts[0];
+ guest.email = parts[1];
+ // Assuming more properties exist in the guest model and are populated from CSV
+
+ guests.add(guest);
+ }
+ return guests;
+ } catch (IOException e) {
+ throw new RuntimeException("Failed to read guests", e);
+ }
+ }
+
+ private Map<String, List<CheckoutModel>> readCheckoutsByGuestEmail(String filePath) {
+ try (var reader = new BufferedReader(new FileReader(filePath))) {
+ Map<String, List<CheckoutModel>> checkoutsByGuestEmail = new HashMap<>();
+ String line;
+ while ((line = reader.readLine()) != null) {
+ reader.readLine();
+ var parts = line.split(",");
+ String guestEmail = parts[0];
+ String checkoutData = parts[1]; // Assuming checkout data format
+ // Parse checkout data and create CheckoutModel objects
+ // Here you'll need to create and populate the CheckoutModel objects
+ // Then add them to the list associated with the guest's email
+ // Example:
+ CheckoutModel checkoutModel = new CheckoutModel();
+ // Populate checkoutModel fields from checkoutData
+ List<CheckoutModel> checkouts =
+ checkoutsByGuestEmail.getOrDefault(guestEmail, new ArrayList<>());
+ checkouts.add(checkoutModel);
+ checkoutsByGuestEmail.put(guestEmail, checkouts);
+ }
+ return checkoutsByGuestEmail;
+ } catch (IOException e) {
+ throw new RuntimeException("Failed to read checkout data", e);
+ }
+ }
+}