#!/usr/bin/env python3
import logging
-from typing import Dict, List, Optional, Tuple
+import os
+from typing import Any, Dict, List, Optional, Tuple
import yfinance as yf # type: ignore
+import plotly.graph_objects as go
import file_writer
+import kiosk_constants
import renderer
super().__init__(name_to_timeout_dict)
self.symbols = symbols
self.display_subs = display_subs
+ self.info_cache: Dict[yf.ticker.Ticker, Dict] = {}
- @staticmethod
- def get_ticker_name(ticker: yf.ticker.Ticker) -> str:
+ def cache_info(self, ticker: yf.ticker.Ticker) -> Dict:
+ if ticker in self.info_cache:
+ return self.info_cache[ticker]
+ i = ticker.get_info()
+ self.info_cache[ticker] = i
+ return i
+
+ def get_ticker_name(self, ticker: yf.Ticker) -> str:
"""Get friendly name of a ticker."""
- info = ticker.get_info()
+ info = self.cache_info(ticker)
if "shortName" in info:
return info["shortName"]
return ticker
@staticmethod
- def get_price(ticker: yf.ticker.Ticker) -> Optional[float]:
- """Get most recent price of a ticker."""
- keys = [
- "bid",
- "ask",
- "regularMarketPrice",
- "lastMarket",
- "open",
- "previousClose",
- ]
- info = ticker.get_info()
+ def get_item_from_dict(keys: List[str], dictionary: Dict[str, Any]) -> Optional[Any]:
+ result = None
for key in keys:
- if key in info and info[key] is not None and info[key] != 0.0:
- print(f"Price: picked {key}, ${info[key]}.")
- return float(info[key])
+ result = dictionary.get(key, None)
+ if result:
+ return result
return None
+ def get_price(self, ticker: yf.Ticker) -> Optional[float]:
+ """Get most recent price of a ticker."""
+
+ # First try fast_info
+ price = stock_quote_renderer.get_item_from_dict(
+ ['last_price',
+ 'open',
+ 'previous_close'],
+ ticker.fast_info)
+ if price:
+ return price
+
+ # Next try info
+ price = stock_quote_renderer.get_item_from_dict(
+ ['bid',
+ 'ask',
+ 'lastMarket'],
+ self.cache_info(ticker))
+ if price:
+ return price
+
+ # Finally, fall back on history
+ hist = ticker.history(period="1d").to_dict()['Close']
+ latest = None
+ latest_price = None
+ for k, v in hist.items():
+ if latest is None or k > latest:
+ price = hist[k]
+ if price is not None:
+ latest = k
+ latest_price = price
+ print(f"Price: fell back on latest close {latest_price} at {latest}")
+ return latest_price
+
@staticmethod
+ def make_chart(symbol: str, ticker: yf.Ticker, period: str) -> str:
+ base_filename = f'stock_chart_{symbol}.png'
+ output_filename = os.path.join(kiosk_constants.pages_dir, base_filename)
+ transparent = go.Layout(
+ paper_bgcolor='rgba(0,0,0,0)',
+ plot_bgcolor='rgba(0,0,0,0)',
+ xaxis_rangeslider_visible=False,
+ )
+ hist = ticker.history(period=period, interval="1wk")
+ chart = go.Figure(
+ data=go.Candlestick(
+ open=hist['Open'],
+ high=hist['High'],
+ low=hist['Low'],
+ close=hist['Close'],
+ ),
+ layout=transparent,
+ )
+ chart.update_xaxes(visible=False, showticklabels=False)
+ chart.update_yaxes(side="right")
+ chart.write_image(output_filename, format="png", width=600, height=350)
+ print(f"Write {output_filename}...")
+ return base_filename
+
+ def get_last_close(
+ self,
+ ticker: yf.Ticker
+ ) -> float:
+ last_close = stock_quote_renderer.get_item_from_dict(
+ ['previous_close',
+ 'open'],
+ ticker.fast_info)
+ if last_close:
+ return last_close
+
+ last_close = stock_quote_renderer.get_item_from_dict(
+ ['preMarketPrice'],
+ self.cache_info(ticker))
+ if last_close:
+ return last_close
+ return self.get_price(ticker)
+
def get_change_and_delta(
- ticker: yf.ticker.Ticker, price: float
+ self,
+ ticker: yf.Ticker,
+ price: float
) -> Tuple[float, float]:
"""Given the current price, look up opening price and compute delta."""
- keys = [
- "previousClose",
- "open",
- ]
- info = ticker.get_info()
- for key in keys:
- if key in info and info[key] is not None:
- print(f"Change: picked {key}, ${info[key]}.")
- old_price = float(info[key])
- delta = price - old_price
- return (delta / old_price * 100.0, delta)
- return (0.0, 0.0)
+ last_price = self.get_last_close(ticker)
+ delta = price - last_price
+ return (delta / last_price * 100.0, delta)
def periodic_render(self, key: str) -> bool:
"""Write an up-to-date stock page."""
symbols_finished = 0
for symbol in self.symbols:
ticker = yf.Ticker(symbol)
- # print(ticker.get_info())
if ticker is None:
logger.debug(f"Unknown symbol {symbol} -- ignored.")
continue
- name = stock_quote_renderer.get_ticker_name(ticker)
- price = stock_quote_renderer.get_price(ticker)
+ name = self.get_ticker_name(ticker)
+ if name is None:
+ logger.debug(f'Bad name for {symbol} -- skipped.')
+ continue
+ price = self.get_price(ticker)
if price is None:
logger.debug(f"No price information for {symbol} -- skipped.")
continue
- (percent_change, delta) = stock_quote_renderer.get_change_and_delta(
+ (percent_change, delta) = self.get_change_and_delta(
ticker, price
)
- # print(f"delta: {delta}, change: {percent_change}")
- cell_color = "#b00000" if percent_change < 0 else "#009000"
+ chart_filename = stock_quote_renderer.make_chart(symbol, ticker, "1y")
+ print(f"delta: {delta}, change: {percent_change}")
+ if percent_change < 0:
+ cell_color = "#b00000"
+ elif percent_change > 0:
+ cell_color = "#009000"
+ else:
+ cell_color = "#a0a0a0"
if symbols_finished % 4 == 0:
if symbols_finished > 0:
f.write("</TR>")
<TD WIDTH=20% HEIGHT=150 BGCOLOR="{cell_color}">
<!-- Container -->
<DIV style="position:relative;
- height:150px;">
+ height:175px;">
<!-- Symbol {symbol} -->
<DIV style="position:absolute;
bottom:50;
<DIV style="position:absolute;
left:10;
top:20;
- font-size:23pt;
- font-family: helvetica, arial, sans-serif;
- width:70%">
+ font-size:24pt;
+ font-family:helvetica, arial, sans-serif;
+ font-weight:900;
+ width:80%">
${price:.2f}<BR>
<I>({percent_change:.1f}%)</I><BR>
<B>${delta:.2f}</B>
</DIV>
+ <IMG SRC="{chart_filename}" WIDTH=100%>
</DIV>
</TD>"""
)
return True
# Test
-#x = stock_quote_renderer({}, ["MSFT", "GOOG", "BTC-USD", "ABHYX", "GC=F", "VNQ"], { "BTC-USD": "BTC", "GC=F": "GOLD" })
-#x.periodic_render(None)
+x = stock_quote_renderer({}, ["MSFT", "GOOG", "BTC-USD", "ABHYX", "GC=F", "VNQ"], { "BTC-USD": "BTC", "GC=F": "GOLD" })
+x.periodic_render(None)
projects / kiosk.git / blobdiff