ADD week 5

02-Easy5/E5/sources/ch/mod_p/sre24/e5/data/LoginDataSource.java

@@ -0,0 +1,28 @@
+package ch.mod_p.sre24.e5.data;
+
+import android.content.Context;
+import ch.mod_p.sre24.e5.R;
+import ch.mod_p.sre24.e5.data.Result;
+import ch.mod_p.sre24.e5.data.model.LoggedInUser;
+import java.io.IOException;
+import java.util.UUID;
+
+/* loaded from: classes.dex */
+public class LoginDataSource {
+    public void logout() {
+    }
+
+    public Result<LoggedInUser> login(Context context, String str, String str2) {
+        try {
+            if (str.compareTo(context.getString(R.string.username)) != 0) {
+                return new Result.Error(new Exception("Unknown username"));
+            }
+            if (new StringBuffer(str2).reverse().toString().compareTo(context.getString(R.string.password)) != 0) {
+                return new Result.Error(new Exception("Wrong password"));
+            }
+            return new Result.Success(new LoggedInUser(UUID.randomUUID().toString(), str));
+        } catch (Exception e) {
+            return new Result.Error(new IOException("Error logging in", e));
+        }
+    }
+}

02-Easy5/E5/sources/ch/mod_p/sre24/e5/data/LoginRepository.java

@@ -0,0 +1,44 @@
+package ch.mod_p.sre24.e5.data;
+
+import android.content.Context;
+import ch.mod_p.sre24.e5.data.Result;
+import ch.mod_p.sre24.e5.data.model.LoggedInUser;
+
+/* loaded from: classes.dex */
+public class LoginRepository {
+    private static volatile LoginRepository instance;
+    private final LoginDataSource dataSource;
+    private LoggedInUser user = null;
+
+    private void setLoggedInUser(LoggedInUser loggedInUser) {
+        this.user = loggedInUser;
+    }
+
+    public boolean isLoggedIn() {
+        return this.user != null;
+    }
+
+    private LoginRepository(LoginDataSource loginDataSource) {
+        this.dataSource = loginDataSource;
+    }
+
+    public static LoginRepository getInstance(LoginDataSource loginDataSource) {
+        if (instance == null) {
+            instance = new LoginRepository(loginDataSource);
+        }
+        return instance;
+    }
+
+    public void logout() {
+        this.user = null;
+        this.dataSource.logout();
+    }
+
+    public Result<LoggedInUser> login(Context context, String str, String str2) {
+        Result<LoggedInUser> login = this.dataSource.login(context, str, str2);
+        if (login instanceof Result.Success) {
+            setLoggedInUser((LoggedInUser) ((Result.Success) login).getData());
+        }
+        return login;
+    }
+}

02-Easy5/E5/sources/ch/mod_p/sre24/e5/data/Result.java

@@ -0,0 +1,43 @@
+package ch.mod_p.sre24.e5.data;
+
+/* loaded from: classes.dex */
+public class Result<T> {
+    private Result() {
+    }
+
+    public String toString() {
+        if (this instanceof Success) {
+            return "Success[data=" + ((Success) this).getData().toString() + "]";
+        }
+        if (!(this instanceof Error)) {
+            return "";
+        }
+        return "Error[exception=" + ((Error) this).getError().toString() + "]";
+    }
+
+    public static final class Success<T> extends Result {
+        private T data;
+
+        public T getData() {
+            return this.data;
+        }
+
+        public Success(T t) {
+            super();
+            this.data = t;
+        }
+    }
+
+    public static final class Error extends Result {
+        private final Exception error;
+
+        public Exception getError() {
+            return this.error;
+        }
+
+        public Error(Exception exc) {
+            super();
+            this.error = exc;
+        }
+    }
+}

02-Easy5/E5/sources/ch/mod_p/sre24/e5/data/model/LoggedInUser.java

@@ -0,0 +1,20 @@
+package ch.mod_p.sre24.e5.data.model;
+
+/* loaded from: classes.dex */
+public class LoggedInUser {
+    private final String displayName;
+    private final String userId;
+
+    public String getDisplayName() {
+        return this.displayName;
+    }
+
+    public String getUserId() {
+        return this.userId;
+    }
+
+    public LoggedInUser(String str, String str2) {
+        this.userId = str;
+        this.displayName = str2;
+    }
+}