From 445c753f60e3c8f844a98f2aa3c3a59504185a0c Mon Sep 17 00:00:00 2001
From: EspenTinius <tiniusespen@gmail.com>
Date: Thu, 19 Feb 2026 23:48:02 +0100
Subject: [PATCH] TransactionsArchive class doc

javadoc
---
 .../g40/mappe/TransactionArchive.java         | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/TransactionArchive.java b/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/TransactionArchive.java
index 5b816b5..c09cec6 100644
--- a/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/TransactionArchive.java
+++ b/src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/TransactionArchive.java
@@ -3,21 +3,44 @@
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Stores completed transactions.
+ */
 public class TransactionArchive {
 
     private final List<Transaction> transactions = new ArrayList<>();
 
+    /**
+     * Creates an empty transaction archive.
+     */
     public TransactionArchive() {
     }
 
+    /**
+     * Adds a transaction to the archive.
+     *
+     * @param transaction the transaction to add
+     * @return true if the transaction was added
+     */
     public boolean add(Transaction transaction) {
         return transactions.add(transaction);
     }
 
+    /**
+     * Checks whether the archive is empty.
+     *
+     * @return true if no transactions exist
+     */
     public boolean isEmpty() {
         return transactions.isEmpty();
     }
 
+    /**
+     * Returns all transactions from a given week.
+     *
+     * @param week the week number
+     * @return list of transactions from the given week
+     */
     public List<Transaction> getTransactions(int week) {
         List<Transaction> result = new ArrayList<>();
         for (Transaction transaction : transactions) {
@@ -28,6 +51,12 @@ public List<Transaction> getTransactions(int week) {
         return result;
     }
 
+    /**
+     * Returns all purchase transactions from a given week.
+     *
+     * @param week the week number
+     * @return list of purchases from the given week
+     */
     public List<Purchase> getPurchases(int week) {
         List<Purchase> result = new ArrayList<>();
         for (Transaction transaction : transactions) {
@@ -38,6 +67,12 @@ public List<Purchase> getPurchases(int week) {
         return result;
     }
 
+    /**
+     * Returns all sale transactions from a given week.
+     *
+     * @param week the week number
+     * @return list of sales from the given week
+     */
     public List<Sale> getSales(int week) {
         List<Sale> result = new ArrayList<>();
         for (Transaction transaction : transactions) {
@@ -48,6 +83,11 @@ public List<Sale> getSales(int week) {
         return result;
     }
 
+    /**
+     * Counts the number of distinct weeks with transactions.
+     *
+     * @return number of distinct weeks
+     */
     public int countDistinctWeeks() {
         List<Integer> weeks = new ArrayList<>();
         for (Transaction transaction : transactions) {