import csv

reader = csv.DictReader(open('amex2.csv', newline=''))

data = []
total_amounts = {}
for row in reader:
    data.append(row)

def sameMerchant(data, sorted=True):
    amounts_by_description = {}
    for item in data:
        description = item['Description']
        amount = float(item['Amount'])
        if description in amounts_by_description:
            amounts_by_description[description] += amount
        else:
            amounts_by_description[description] = amount

    if sorted:
        for description, total_amount in amounts_by_description.items():
            print(f"{description}: {total_amount}")
    else:
        for description, total_amount in sorted(amounts_by_description.items(), key=lambda x: x[1], reverse=True):
            print(f"{description}: {total_amount}")

def sameCategory(data, sorted=True):
    amounts_by_category = {}
    for item in data:
        category = item['Category']
        amount = float(item['Amount'])
        if category in amounts_by_category:
            amounts_by_category[category] += amount
        else:
            amounts_by_category[category] = amount

    if sorted:
        for category, total_amount in amounts_by_category.items():
            print(f"{category}: ${total_amount}")
    else:
        for category, total_amount in sorted(amounts_by_category.items(), key=lambda x: x[1], reverse=True):
            print(f"{category}: ${total_amount}")

sameCategory(data)

# for item in data:
#     if "Merchandise & Supplies-Music & Vidkoijoeo" in item["Category"]:
#         print(item['Description'])