feat: cryptograph

crypto

@@ -6,7 +6,7 @@ import http.client as http
 
 # curl https://api.coingecko.com/api/v3/coins/list
 COINS = [
-#   [id,        symbol]
+    # [id,      symbol]
     ["bitcoin", "BTC"],
 ]
 CURRENCY = "usd"
@@ -14,15 +14,14 @@ FORMAT = "{coin}=${price:.0f}"
 
 
 def main():
-    coin_ids = ",".join([coin for coin in list(zip(*COINS))[0]])
+    coin_ids = ",".join([coin[0] for coin in COINS])
     url = "api.coingecko.com"
     path = f"/api/v3/simple/price?ids={coin_ids}&vs_currencies={CURRENCY}"
 
-    # {'bitcoin': {'usd': 69420}}
-
     client = http.HTTPSConnection(url)
     client.request("GET", path)
 
+    # {'bitcoin': {'usd': 69420}}
     prices = json.loads(client.getresponse().read())
 
     print(

cryptograph

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+
+import http.client as http
+import json
+import matplotlib.pyplot as plt
+
+from datetime import datetime, timedelta
+from matplotlib.dates import DateFormatter
+
+# 1    = */5 * * * *
+# < 90 = 0   * * * *
+# > 90 = 0   0 * * *
+DAYS = 30
+COIN = "bitcoin"
+CURRENCY = "usd"
+
+
+def create_graph(dates: list[datetime], values: list[float]):
+    _, ax = plt.subplots()
+
+    plt.rcParams.update({"font.weight": "bold"})
+    ax.xaxis.set_major_formatter(DateFormatter("%m-%d"))  # pyright: ignore
+    ax.plot(dates, values, linewidth=4.0, color="red")  # pyright: ignore
+    plt.tight_layout()
+    plt.savefig("foo.png", transparent=True)
+
+
+def get_time_range(days: int) -> list[datetime]:
+    now = datetime.now()
+    time_change = timedelta(hours=1)
+
+    return [now + time_change * hour for hour in range(-days * 24, 1)]
+
+
+def main():
+    url = "api.coingecko.com"
+    path = f"/api/v3/coins/{COIN}/market_chart?vs_currency={CURRENCY}&days={DAYS}&precision=2"
+
+    client = http.HTTPSConnection(url)
+    client.request("GET", path)
+
+    # dict("prices", "market_caps", "total_volumes")
+    market_chart = json.loads(client.getresponse().read())
+
+    create_graph(get_time_range(DAYS), list(zip(*market_chart["prices"]))[1])
+
+
+if __name__ == "__main__":
+    main()