SQA Higher Computing Science 2025 Assignment Practice

class Order(): def __init__(self, orderNum, date, email, option, cost, rating): self.orderNum = orderNum #string self.date = date #string self.email = email #string self.option = option #string self.cost = float(cost) #real self.rating = int(rating) #int def readFromFile(): oArray = [] # Note: Paths changed to relative for web simulation entireFile = open("orders.txt", "r") linesArray = entireFile.read().splitlines() entireFile.close() for line in linesArray: lineSplit = line.split(",") currentOrder = Order(lineSplit[0], lineSplit[1], lineSplit[2], lineSplit[3], float(lineSplit[4]), int(lineSplit[5])) oArray.append(currentOrder) return oArray def findFirstFiveStarInMonth(oArray): # 2.1 Set position to -1 position = -1 # 2.2 Set index to 0 index = 0 # 2.3 Ask user to enter month to search for # Input will appear as a browser prompt month = str(input("Please enter the month you wish to find the first 5 Star review for (e.g. Oct): ")) # 2.4 While position is -1 and index is less than the length of the array while position == -1 and index < len(oArray): # print (oArray[index].date[3:6] == month) # 2.5 If current month is equal to searched month and current rating is 5 then if oArray[index].date[3:6] == month and oArray[index].rating == 5: # 2.6 Set position to index position = index # 2.7 End if # 2.8 Add 1 to index index += 1 # 2.9 End while # 2.10 Return position return position def createFile(oArray, pos): # 3.1 Open new file ‘winningCustomer.txt’ # Note: Paths changed to relative for web simulation entireFile = open("winningCustomer.txt", "w+") print (f"Winner found at index: {pos}") # 3.2 If position is 0 or above then if pos >=0: # 3.3 Write winning order number, email and cost to ‘winningCustomer.txt’ textToWrite = oArray[pos].orderNum + ", " + oArray[pos].email + ", " + str(oArray[pos].cost) entireFile.write(textToWrite) # 3.4 Else else: # 3.5 Write ‘No winner’ to ‘winningCustomer.txt’ entireFile.write("No winner") # 3.6 End if # 3.7 Close ‘winningCustomer.txt’ entireFile.close() def displayOrders(oArray): # 4.1 Call countOption function to return the number of orders delivered od = countOption(oArray, "Delivery") # 4.2 Call countOption function to return the number of orders collected oc = countOption(oArray, "Collection") # 4.3 Output the total number of orders delivered print (f"Deliveries: {od}") # 4.4 Output the total number of orders collected print (f"Collections: {oc}") def countOption(oArray, option): counter = 0 for order in oArray: if order.option == option: counter += 1 return counter # Main Execution try: #1. Read from file into array of records. ordersArray = readFromFile() #2. Find the position of the customer who gave the first 5-star rating in a given month. pos = findFirstFiveStarInMonth(ordersArray) #3. Write details of the winning customer, or ‘no winner’ message, to a text file. createFile(ordersArray, pos) #4. Display the total number of orders delivered and the total number of orders collected. displayOrders(ordersArray) except Exception as e: print(f"An error occurred: {e}")