import requests
import json

base_url="http://127.0.0.1:5000{endpoint}"

def list_all_counters():
    response = requests.get(
        base_url.format(endpoint="/counters")
    )

    print("----------------------------------")
    print("All Counters: ")
    
    for k,v in response.json()["all_counters"].items():
        print("{next_key}: {next_value}".format(
            next_key=k,
            next_value=v
        ))
    
    print("----------------------------------")
    print("")

def add_counter(counter_name, initial_value):
    response = requests.post(
        base_url.format(
            endpoint = "/counters"
        ),
        data=json.dumps({
            'new_counter_name': counter_name,
            'new_counter_starting_value': initial_value
        }),
        headers={
            'Content-Type': 'application/json'
        }
    )

    print("----------------------------------")
    
    if response.status_code == 200:
        print("Successfully Added New Counter")
    else:
        print("Failed to Add New Counter, Check Server Log")

    print("----------------------------------")
    print("")

def list_specific_counter(counter_name):
    response = requests.get(
        base_url.format(
            endpoint = "/counters/{counter_name}".format(
                counter_name=counter_name
            )
        )
    )

    print("----------------------------------")
    
    if(response.status_code == 404):
        print("Counter name {counter_name} does not exist".format(counter_name=counter_name))
    else:
        print("Counter Name: {counter_name}".format(counter_name=counter_name))
        print("Counter Value: {counter_value}".format(counter_value=response.json()['counter_value']))

    print("----------------------------------")
    print("")

def modify_counter(counter_name, increment):
    response = requests.post(
        base_url.format(
            endpoint = "/counters/{counter_name}/{inc_dec}".format(
                counter_name=counter_name,
                inc_dec = "increment" if increment else "decrement"
            )
        )
    )

    print("----------------------------------")
    
    if(response.status_code == 404):
        print("Counter name {counter_name} does not exist".format(counter_name=counter_name))
    else:
        print("Counter Updated: {counter_name}".format(counter_name=counter_name))
        print("Old Value: {old_value}".format(old_value=response.json()['old_value']))
        print("New Value: {new_value}".format(new_value=response.json()['new_value']))

    print("----------------------------------")
    print("")

while True:
    print("What do you want to do?")
    print("1. List All Counters")
    print("2. List a Specific Counter")
    print("3. Add a Counter")
    print("4. Increment a Specific Counter")
    print("5. Decrement a Specific Counter")
    print("6. Quit")

    user_input = input("Your Choice: ")

    user_input_as_int = 0

    try:
        user_input_as_int = int(user_input)
    except:
        print("User input is not a number, try again")
        print("")
        continue

    if user_input_as_int == 1:
        list_all_counters()
    elif user_input_as_int == 2:
        what_counter = input("What Counter?: ")
        list_specific_counter(what_counter)
    elif user_input_as_int == 3:
        new_counter_name = input("New Counter Name: ")

        string_counter_initial_value = input("New Counter Initial Value: ")
        int_counter_initial_value = 0

        try:
            int_counter_initial_value = int(string_counter_initial_value)
        except:
            print("Input initial value is not an integer")
            print("")
            continue

        add_counter(new_counter_name, int_counter_initial_value)
    elif user_input_as_int == 4:
        what_counter = input("What Counter?: ")
        modify_counter(what_counter, True)
    elif user_input_as_int == 5:
        what_counter = input("What Counter?: ")
        modify_counter(what_counter, False)
    elif user_input_as_int == 6:
        break
    else:
        print("Not a valid input number")
        print("")