#This example uses Python 2.7 and the python-request library.

from requests import Request, Session
import datetime
from requests.exceptions import ConnectionError, Timeout, TooManyRedirects
import json

# https://coinmarketcap.com/api/documentation/v1/#section/Endpoint-Overview

url = 'https://pro-api.coinmarketcap.com/v1/cryptocurrency/listings/latest'
parameters = {
  'start':'1',
  'limit':'5000',
  'convert':'USD'
}

headers = {
  'Accepts': 'application/json',
  'X-CMC_PRO_API_KEY': 'b14dfc5b-ec9d-4d53-8af7-fab0e5971120',
}

# 輸出(Console & File)
def output(str):
    if str is not None:
        print(str)
        fo.write(str + '\n')

session = Session()
session.headers.update(headers)

try:
    response = session.get(url, params=parameters)
    data = json.loads(response.text)

    filename = 'C:/wamp64/www/NFTBoard/api/' + datetime.datetime.now().strftime("%Y%m%d%H%M") + '.txt'
    fo = open(filename, 'w+', encoding='utf-8')

    print('資料總筆數 = %s' % data['status']['total_count'])

    count = 1

    # NFT資料總筆數
    nft_total_count = 0

    for d in data['data']:
      tags = d['tags']

      # 檢查是否為NFT
      if 'collectibles-nfts' in tags:
        nft_total_count += 1

        '''
        {"id":2416,"name":"THETA","symbol":"THETA","slug":"theta","num_market_pairs":61,"date_added":"2018-01-17T00:00:00.000Z","tags":["media","collectibles-nfts","content-creation","video","huobi-capital"],"max_supply":1000000000,"circulating_supply":1000000000,"total_supply":1000000000,"platform":null,"cmc_rank":18,"last_updated":"2021-07-01T07:47:06.000Z","quote":{"USD":{"price":6.47444235747614,"volume_24h":226106772.68725023,"percent_change_1h":-0.78042098,"percent_change_24h":-5.36040215,"percent_change_7d":-6.02352245,"percent_change_30d":-11.54236731,"percent_change_60d":-40.7622901,"percent_change_90d":-45.50203437,"market_cap":6474442357.47614,"last_updated":"2021-07-01T07:47:06.000Z"}}}
        '''

        id = d['id']
        icon = 'https://s2.coinmarketcap.com/static/img/coins/64x64/' + str(id) + '.png'
        name = d['name']
        symbol = d['symbol']
        price = d['quote']['USD']['price']

        if price >= 1: 
          price = format(price, '.2f')
        elif price >= 0.1 and price < 1:
          price = format(price, '.4f')
        elif price >= 0.01 and price < 0.1:
          price = format(price, '.4f')
        elif price >= 0.001 and price < 0.01:
          price = format(price, '.6f')
        elif price >= 0.0001 and price < 0.001:
          price = format(price, '.8f')
        elif price >= 0.00001 and price < 0.0001:
          price = format(price, '.9f')
        else:
          price = "<$0.00001"

        percent_change_24h = format(d['quote']['USD']['percent_change_24h'], '.2f')
        percent_change_7d = format(d['quote']['USD']['percent_change_7d'], '.2f')
        market_cap = int(d['quote']['USD']['market_cap'])
        volume_24h = int(d['quote']['USD']['volume_24h'])
        circulating_supply = str(int(d['circulating_supply'])) + ' ' + symbol
        last_7d = "https://s3.coinmarketcap.com/generated/sparklines/web/7d/usd/" + str(id) + ".png"

        output('\n%s.%s' % (nft_total_count, symbol))
        output('icon: %s' % icon)
        output('name: %s' % name)
        output('price: $%s' % price)
        output('percent_change_24h: %s%%' % percent_change_24h)
        output('percent_change_7d: %s%%' % percent_change_7d)
        output('market_cap: $%s' % market_cap)
        output('volume_24h: $%s' % volume_24h)
        output('circulating_supply: %s' % circulating_supply)
        output('last_7d: %s' % last_7d)

    output('NFT資料總筆數 = %s' % nft_total_count)      

except (ConnectionError, Timeout, TooManyRedirects) as e:
    print(e)