import logging import random from datetime import datetime from typing import Any, Dict, Optional, Union from urllib.parse import urlencode from discord import Embed from discord.ext import tasks from discord.ext.commands import BadArgument, Cog, Context, Converter, group from bot.bot import SeasonalBot from bot.constants import Tokens logger = logging.getLogger(__name__) NASA_BASE_URL = "https://api.nasa.gov" NASA_IMAGES_BASE_URL = "https://images-api.nasa.gov" NASA_EPIC_BASE_URL = "https://epic.gsfc.nasa.gov" APOD_DEFAULT_PARAMS = { "api_key": Tokens.nasa } class DateConverter(Converter): """Parse SOL or earth date (in format YYYY-MM-DD) into `int` or `datetime`. When invalid input, raise error.""" async def convert(self, ctx: Context, argument: str) -> Union[int, datetime]: """Parse date (SOL or earth) into `datetime` or `int`. When invalid value, raise error.""" if argument.isdigit(): return int(argument) try: date = datetime.strptime(argument, "%Y-%m-%d") except ValueError: raise BadArgument(f"Can't convert `{argument}` to `datetime` in format `YYYY-MM-DD` or `int` in SOL.") return date class Space(Cog): """Space Cog contains commands, that show images, facts or other information about space.""" def __init__(self, bot: SeasonalBot): self.bot = bot self.http_session = bot.http_session self.rovers = {} self.get_rovers.start() @tasks.loop(hours=24) async def get_rovers(self) -> None: """Get listing of rovers from NASA API and info about their start and end dates.""" data = await self.fetch_from_nasa("mars-photos/api/v1/rovers", params={"api_key": Tokens.nasa}) for rover in data["rovers"]: self.rovers[rover["name"].lower()] = { "min_date": rover["landing_date"], "max_date": rover["max_date"] } @group(name="space", invoke_without_command=True) async def space(self, ctx: Context) -> None: """Head command that contains commands about space.""" await ctx.send_help("space") @space.command(name="apod") async def apod(self, ctx: Context, date: Optional[str] = None) -> None: """ Get Astronomy Picture of Day from NASA API. Date is optional parameter, what formatting is YYYY-MM-DD. If date is not specified, this will get today APOD. """ params = APOD_DEFAULT_PARAMS.copy() # Parse date to params, when provided. Show error message when invalid formatting if date: try: params["date"] = datetime.strptime(date, "%Y-%m-%d").date().isoformat() except ValueError: await ctx.send(f"Invalid date {date}. Please make sure your date is in format YYYY-MM-DD.") return result = await self.fetch_from_nasa("planetary/apod", params) await ctx.send(embed=await self.create_nasa_embed( f"Astronomy Picture of the Day - {result['date']}", result["explanation"], result["url"] )) @space.command(name="nasa") async def nasa(self, ctx: Context, *, search_term: Optional[str] = None) -> None: """Get random NASA information/facts + image. Support `search_term` parameter for more specific search.""" params = { "media_type": "image" } if search_term: params["q"] = search_term data = await self.fetch_from_nasa("search", params, NASA_IMAGES_BASE_URL) if len(data["collection"]["items"]) == 0: await ctx.send(f"Can't find any items with search term `{search_term}`.") return item = random.choice(data["collection"]["items"]) await ctx.send(embed=await self.create_nasa_embed( item["data"][0]["title"], item["data"][0]["description"], item["links"][0]["href"] )) @space.command(name="epic") async def epic(self, ctx: Context, date: Optional[str] = None) -> None: """Get one of latest random image of earth from NASA EPIC API. Support date parameter, format is YYYY-MM-DD.""" if date: try: show_date = datetime.strptime(date, "%Y-%m-%d").date().isoformat() except ValueError: await ctx.send(f"Invalid date {date}. Please make sure your date is in format YYYY-MM-DD.") return else: show_date = None data = await self.fetch_from_nasa( f"api/natural{f'/date/{show_date}' if show_date else ''}", base=NASA_EPIC_BASE_URL ) if len(data) < 1: await ctx.send("Can't find any images in this date.") return item = random.choice(data) year, month, day = item["date"].split(" ")[0].split("-") image_url = f"{NASA_EPIC_BASE_URL}/archive/natural/{year}/{month}/{day}/jpg/{item['image']}.jpg" await ctx.send(embed=await self.create_nasa_embed( "Earth Image", item["caption"], image_url, f" \u2022 Identifier: {item['identifier']}" )) @space.group(name="mars", invoke_without_command=True) async def mars(self, ctx: Context, date: DateConverter, rover: Optional[str] = "curiosity" ) -> None: """ Get random Mars image by date. Support both SOL (martian solar day) and earth date and rovers. Earth date formatting is YYYY-MM-DD. Use `.space mars dates` to get all currently available rovers. """ rover = rover.lower() if rover not in self.rovers: await ctx.send( ( f"Invalid rover `{rover}`.\n" f"**Rovers:** `{'`, `'.join(f'{r.capitalize()}' for r in self.rovers)}`" ) ) return params = { "api_key": Tokens.nasa } if isinstance(date, int): params["sol"] = date else: params["earth_date"] = date.date().isoformat() result = await self.fetch_from_nasa(f"mars-photos/api/v1/rovers/{rover}/photos", params) if len(result["photos"]) < 1: err_msg = ( f"We can't find result in date " f"{date.date().isoformat() if isinstance(date, datetime) else f'{date} SOL'}.\n" f"**Note:** Dates must match with rover's working dates. Please use `{ctx.prefix}space mars dates` to " "see working dates for each rover." ) await ctx.send(err_msg) return item = random.choice(result["photos"]) await ctx.send(embed=await self.create_nasa_embed( f"{item['rover']['name']}'s {item['camera']['full_name']} Mars Image", "", item["img_src"], )) @mars.command(name="dates", aliases=["d", "date", "rover", "rovers", "r"]) async def dates(self, ctx: Context) -> None: """Get current available rovers photo date ranges.""" await ctx.send("\n".join( f"**{r.capitalize()}:** {i['min_date']} **-** {i['max_date']}" for r, i in self.rovers.items() )) async def fetch_from_nasa(self, endpoint: str, params: Optional[Dict[str, Any]] = None, base: Optional[str] = NASA_BASE_URL ) -> Dict[str, Any]: """Fetch information from NASA API, return result.""" if params is None: params = {} async with self.http_session.get(url=f"{base}/{endpoint}?{urlencode(params)}") as resp: return await resp.json() async def create_nasa_embed(self, title: str, description: str, image: str, footer: Optional[str] = "") -> Embed: """Generate NASA commands embeds. Required: title, description and image URL, footer (addition) is optional.""" return Embed( title=title, description=description ).set_image(url=image).set_footer(text="Powered by NASA API" + footer) def setup(bot: SeasonalBot) -> None: """Load Space Cog.""" if not Tokens.nasa: logger.warning("Can't find NASA API key. Not loading Space Cog.") return bot.add_cog(Space(bot))