74 lines
2.0 KiB
Python
74 lines
2.0 KiB
Python
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from fastapi import FastAPI, Request
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from fastapi.responses import HTMLResponse
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from fastapi.staticfiles import StaticFiles
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from fastapi.templating import Jinja2Templates
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from datetime import datetime
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import asyncio
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app = FastAPI()
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# Mount static and media folders
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app.mount("/static", StaticFiles(directory="static"), name="static")
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app.mount("/media", StaticFiles(directory="media"), name="media")
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# Templates folder
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templates = Jinja2Templates(directory="templates")
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# Python's official birth date
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PYTHON_BIRTH = datetime(1991, 2, 20)
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class SharedState:
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""" Tracks Python's current age in decimal years, updated asynchronously. """
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def __init__(self):
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self.current_age = 0.0
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self.running = False
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async def update_age(self):
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""" Continuously update Python's age in decimal years. """
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while self.running:
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now = datetime.now()
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delta = now - PYTHON_BIRTH
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# Convert time delta to decimal years
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self.current_age = delta.days / 365.25 + (delta.seconds / (86400 * 365.25))
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await asyncio.sleep(0.1) # Update about 10 times per second
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state = SharedState()
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@app.on_event("startup")
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async def on_startup():
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state.running = True
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asyncio.create_task(state.update_age())
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@app.on_event("shutdown")
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async def on_shutdown():
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state.running = False
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@app.get("/", response_class=HTMLResponse)
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async def home(request: Request):
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"""
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Main page with an <object> that loads /stream.
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"""
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return templates.TemplateResponse(
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"index.html",
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{
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"request": request,
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"now": datetime.now()
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}
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)
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@app.get("/stream", response_class=HTMLResponse)
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async def stream_time(request: Request):
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"""
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Returns a tiny HTML snippet that self-refreshes every 0.1 seconds.
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No leftover lines, no JS. The page is simply reloaded repeatedly.
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"""
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return templates.TemplateResponse(
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"counter.html",
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{
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"request": request,
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"current_age": f"{state.current_age:.10f}"
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}
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)
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