From bed7db7ee73415bea48d304156e28f862bc90eeb Mon Sep 17 00:00:00 2001
From: Chris Berkhout <chrisberkhout@gmail.com>
Date: Mon, 12 Apr 2021 17:58:54 +0200
Subject: [PATCH] Remove CoinMarketCap, add CoinDesk, add bases and quotes.

---
 src/pricehist/cli.py                   |  2 ++
 src/pricehist/sources/CoinDesk.py      | 32 ++++++++++++++++++++++++++
 src/pricehist/sources/CoinMarketCap.py | 19 ---------------
 src/pricehist/sources/ECB.py           | 11 +++++++++
 src/pricehist/sources/__init__.py      |  4 ++--
 5 files changed, 47 insertions(+), 21 deletions(-)
 create mode 100644 src/pricehist/sources/CoinDesk.py
 delete mode 100644 src/pricehist/sources/CoinMarketCap.py

diff --git a/src/pricehist/cli.py b/src/pricehist/cli.py
index 28be090..109cd5b 100644
--- a/src/pricehist/cli.py
+++ b/src/pricehist/cli.py
@@ -26,6 +26,8 @@ def cmd_source(args):
     print(f'Name        : {source.name()}')
     print(f'Description : {source.description()}')
     print(f'URL         : {source.source_url()}')
+    print(f'Bases       : {", ".join(source.bases())}')
+    print(f'Quotes      : {", ".join(source.quotes())}')
     pass
 
 def build_parser():
diff --git a/src/pricehist/sources/CoinDesk.py b/src/pricehist/sources/CoinDesk.py
new file mode 100644
index 0000000..1c7da7b
--- /dev/null
+++ b/src/pricehist/sources/CoinDesk.py
@@ -0,0 +1,32 @@
+import json
+import requests
+
+class CoinDesk():
+
+    @staticmethod
+    def id():
+        return 'coindesk'
+
+    @staticmethod
+    def name():
+        return 'CoinDesk Bitcoin Price Index'
+
+    @staticmethod
+    def description():
+        return 'An average of bitcoin prices across leading global exchanges. Powered by CoinDesk, https://www.coindesk.com/price/bitcoin'
+
+    @staticmethod
+    def source_url():
+        return 'https://www.coindesk.com/coindesk-api'
+
+    @staticmethod
+    def bases():
+        return ['BTC']
+
+    @staticmethod
+    def quotes():
+        url = 'https://api.coindesk.com/v1/bpi/supported-currencies.json'
+        response = requests.get(url)
+        data = json.loads(response.content)
+        symbols = sorted([item['currency'] for item in data])
+        return symbols
diff --git a/src/pricehist/sources/CoinMarketCap.py b/src/pricehist/sources/CoinMarketCap.py
deleted file mode 100644
index d265322..0000000
--- a/src/pricehist/sources/CoinMarketCap.py
+++ /dev/null
@@ -1,19 +0,0 @@
-class CoinMarketCap():
-
-    @staticmethod
-    def id():
-        return 'coinmarketcap'
-
-    @staticmethod
-    def name():
-        return 'CoinMarketCap'
-
-    @staticmethod
-    def description():
-        return 'CoinMarketCap historical price data'
-
-    @staticmethod
-    def source_url():
-        return 'https://coinmarketcap.com/'
-
-
diff --git a/src/pricehist/sources/ECB.py b/src/pricehist/sources/ECB.py
index 1336cae..6b5c0af 100644
--- a/src/pricehist/sources/ECB.py
+++ b/src/pricehist/sources/ECB.py
@@ -15,3 +15,14 @@ class ECB():
     @staticmethod
     def source_url():
         return 'https://www.ecb.europa.eu/stats/exchange/eurofxref/html/index.en.html'
+
+    @staticmethod
+    def bases():
+        return ['EUR']
+
+    @staticmethod
+    def quotes():
+        return ['AUD', 'BGN', 'BRL', 'CAD', 'CHF', 'CNY', 'CZK', 'DKK', 'GBP',
+                'HKD', 'HRK', 'HUF', 'IDR', 'ILS', 'INR', 'ISK', 'JPY', 'KRW',
+                'MXN', 'MYR', 'NOK', 'NZD', 'PHP', 'PLN', 'RON', 'RUB', 'SEK',
+                'SGD', 'THB', 'TRY', 'USD', 'ZAR']
diff --git a/src/pricehist/sources/__init__.py b/src/pricehist/sources/__init__.py
index 06db3f6..b55f31b 100644
--- a/src/pricehist/sources/__init__.py
+++ b/src/pricehist/sources/__init__.py
@@ -1,7 +1,7 @@
-from .CoinMarketCap import CoinMarketCap
+from .CoinDesk import CoinDesk
 from .ECB import ECB
 
 by_id = {
-    CoinMarketCap.id(): CoinMarketCap,
+    CoinDesk.id(): CoinDesk,
     ECB.id(): ECB
 }