# 4/4/2025 - Charlotte Croce
# JSON API LAB
# 
# this program uses the Coinbase API to get a dictionary of currencies and their prices
# the user can search for a currency by symbol and get its name and price
#
import requests

API_URL = "https://api.coinbase.com/v2/currencies"
response = requests.get(API_URL)

# Parse the JSON response
response_data = response.json()

# create dictionary with currency symbol as key and name as value
currency_dict = {currency['id']: currency['name'] for currency in response_data['data']}

# not included in the dictionary because it is many seperate requests
# and takes a while to process
def get_currency_price(symbol):
    price_url = f"https://api.coinbase.com/v2/prices/{symbol}-USD/spot"
    try:
        price_response = requests.get(price_url)
        price_data = price_response.json()
        return price_data['data']['amount']
    except (requests.exceptions.RequestException, KeyError, ValueError):
        return "Price unavailable"


def display_list():
    # ':<10' creates a 10 character wide column
    print(f"{'Symbol':<10} {'Name':<10}")
    for symbol, name in currency_dict.items():
        print(f"{symbol:<10} {name:<10}")

while True:
    # Prompt user for currency symbol
    symbol = input("Enter currency symbol ('l' to list currencies')('q' to quit): ").upper()
    if symbol == 'Q':
        break
    # if user enter's 'l' Display currencies as table
    if symbol == 'L':
        display_list()
    # Check if symbol is in dictionary
    if symbol in currency_dict:
        print(f"\n{currency_dict[symbol]}\n1{symbol} = ${get_currency_price(symbol)}USD\n")
    else:
        print(f"{symbol} not found")