qrm2/exts/land_weather.py
2021-06-26 20:23:55 -04:00

168 lines
6.5 KiB
Python

"""
Land Weather extension for qrm
---
Copyright (C) 2019-2020 classabbyamp, 0x5c (as weather.py)
Copyright (C) 2021 classabbyamp, 0x5c
SPDX-License-Identifier: LiLiQ-Rplus-1.1
"""
import re
from typing import List
import aiohttp
from discord import Embed
import discord.ext.commands as commands
import common as cmn
class WeatherCog(commands.Cog):
wttr_units_regex = re.compile(r"\B-([cCfF])\b")
def __init__(self, bot: commands.Bot):
self.bot = bot
self.session = aiohttp.ClientSession(connector=bot.qrm.connector)
@commands.group(name="weather", aliases=["wttr"], case_insensitive=True, category=cmn.Cats.WEATHER)
async def _weather_conditions(self, ctx: commands.Context):
"""Gets local weather conditions from [wttr.in](http://wttr.in/).
*Supported location types:*
city name: `paris`
any location: `~Eiffel Tower`
Unicode name of any location in any language: `Москва`
airport code (3 letters): `muc`
domain name `@stackoverflow.com`
area codes: `12345`
GPS coordinates: `-78.46,106.79`
Add a `-c` or `-f` to use Celcius or Fahrenheit: `-c YSC`"""
if ctx.invoked_subcommand is None:
await ctx.send_help(ctx.command)
@_weather_conditions.command(name="forecast", aliases=["fc", "future"], category=cmn.Cats.WEATHER)
async def _weather_conditions_forecast(self, ctx: commands.Context, *, location: str):
"""Gets local weather forecast for the next three days from [wttr.in](http://wttr.in/).
See help of the `weather` command for possible location types and options."""
try:
units_arg = re.search(self.wttr_units_regex, location).group(1)
except AttributeError:
units_arg = ""
if units_arg.lower() == "f":
units = "u"
elif units_arg.lower() == "c":
units = "m"
else:
units = ""
loc = self.wttr_units_regex.sub("", location).strip()
embed = cmn.embed_factory(ctx)
embed.title = f"Weather Forecast for {loc}"
embed.description = "Data from [wttr.in](http://wttr.in/)."
embed.colour = cmn.colours.good
loc = loc.replace(" ", "+")
embed.set_image(url=f"http://wttr.in/{loc}_{units}pnFQ.png")
await ctx.send(embed=embed)
@_weather_conditions.command(name="now", aliases=["n"], category=cmn.Cats.WEATHER)
async def _weather_conditions_now(self, ctx: commands.Context, *, location: str):
"""Gets current local weather conditions from [wttr.in](http://wttr.in/).
See help of the `weather` command for possible location types and options."""
try:
units_arg = re.search(self.wttr_units_regex, location).group(1)
except AttributeError:
units_arg = ""
if units_arg.lower() == "f":
units = "u"
elif units_arg.lower() == "c":
units = "m"
else:
units = ""
loc = self.wttr_units_regex.sub("", location).strip()
embed = cmn.embed_factory(ctx)
embed.title = f"Current Weather for {loc}"
embed.description = "Data from [wttr.in](http://wttr.in/)."
embed.colour = cmn.colours.good
loc = loc.replace(" ", "+")
embed.set_image(url=f"http://wttr.in/{loc}_0{units}pnFQ.png")
await ctx.send(embed=embed)
@commands.command(name="metar", category=cmn.Cats.WEATHER)
async def metar(self, ctx: commands.Context, airport: str, hours: int = 0):
"""Gets current raw METAR (Meteorological Terminal Aviation Routine Weather Report) for an airport. \
Optionally, a number of hours can be given to show a number of hours of historical METAR data.
Airports should be given as an \
[ICAO code](https://en.wikipedia.org/wiki/List_of_airports_by_IATA_and_ICAO_code)."""
await ctx.send(embed=await self.gen_metar_taf_embed(ctx, airport, hours, False))
@commands.command(name="taf", category=cmn.Cats.WEATHER)
async def taf(self, ctx: commands.Context, airport: str):
"""Gets forecasted raw TAF (Terminal Aerodrome Forecast) data for an airport. Includes the latest METAR data.
Airports should be given as an \
[ICAO code](https://en.wikipedia.org/wiki/List_of_airports_by_IATA_and_ICAO_code)."""
await ctx.send(embed=await self.gen_metar_taf_embed(ctx, airport, 0, True))
async def gen_metar_taf_embed(self, ctx: commands.Context, airport: str, hours: int, taf: bool) -> Embed:
embed = cmn.embed_factory(ctx)
airport = airport.upper()
if re.fullmatch(r"\w(\w|\d){2,3}", airport):
metar = await self.get_metar_taf_data(airport, hours, taf)
if taf:
embed.title = f"Current TAF for {airport}"
elif hours > 0:
embed.title = f"METAR for {airport} for the last {hours} hour{'s' if hours > 1 else ''}"
else:
embed.title = f"Current METAR for {airport}"
embed.description = "Data from [aviationweather.gov](https://www.aviationweather.gov/metar/data)."
embed.colour = cmn.colours.good
data = "\n".join(metar)
embed.description += f"\n\n```\n{data}\n```"
else:
embed.title = "Invalid airport given!"
embed.colour = cmn.colours.bad
return embed
async def get_metar_taf_data(self, airport: str, hours: int, taf: bool) -> List[str]:
url = (f"https://www.aviationweather.gov/metar/data?ids={airport}&format=raw&hours={hours}"
f"&taf={'on' if taf else 'off'}&layout=off")
async with self.session.get(url) as r:
if r.status != 200:
raise cmn.BotHTTPError(r)
page = await r.text()
# pare down to just the data
page = page.split("<!-- Data starts here -->")[1].split("<!-- Data ends here -->")[0].strip()
# split at <hr>s
data = re.split(r"<hr.*>", page, maxsplit=len(airport))
parsed = []
for sec in data:
if sec.strip():
for line in sec.split("\n"):
line = line.strip()
# remove HTML stuff
line = line.replace("<code>", "").replace("</code>", "")
line = line.replace("<strong>", "").replace("</strong>", "")
line = line.replace("<br/>", "\n").replace("&nbsp;", " ")
line = line.strip("\n")
parsed.append(line)
return parsed
def setup(bot: commands.Bot):
bot.add_cog(WeatherCog(bot))