1 files changed, 75 insertions, 0 deletions
diff --git a/bot/cogs/hacktober/halloween_facts.py b/bot/cogs/hacktober/halloween_facts.py
new file mode 100644
index 00000000..e97c80d2
--- /dev/null
+++ b/bot/cogs/hacktober/halloween_facts.py
@@ -0,0 +1,75 @@
+import asyncio
+import json
+import random
+from datetime import timedelta
+from pathlib import Path
+
+import discord
+from discord.ext import commands
+
+SPOOKY_EMOJIS = [
+    "\N{BAT}",
+    "\N{DERELICT HOUSE BUILDING}",
+    "\N{EXTRATERRESTRIAL ALIEN}",
+    "\N{GHOST}",
+    "\N{JACK-O-LANTERN}",
+    "\N{SKULL}",
+    "\N{SKULL AND CROSSBONES}",
+    "\N{SPIDER WEB}",
+]
+PUMPKIN_ORANGE = discord.Color(0xFF7518)
+HACKTOBERBOT_CHANNEL_ID = 498804484324196362
+INTERVAL = timedelta(hours=6).total_seconds()
+
+
+class HalloweenFacts:
+
+    def __init__(self, bot):
+        self.bot = bot
+        with open(Path("./bot/resources", "halloween_facts.json"), "r") as file:
+            self.halloween_facts = json.load(file)
+        self.channel = None
+        self.last_fact = None
+
+    async def on_ready(self):
+        self.channel = self.bot.get_channel(HACKTOBERBOT_CHANNEL_ID)
+        self.bot.loop.create_task(self._fact_publisher_task())
+
+    async def _fact_publisher_task(self):
+        """
+        A background task that runs forever, sending Halloween facts at random to the Discord channel with id equal to
+        HACKTOBERFEST_CHANNEL_ID every INTERVAL seconds.
+        """
+        facts = list(enumerate(self.halloween_facts))
+        while True:
+            # Avoid choosing each fact at random to reduce chances of facts being reposted soon.
+            random.shuffle(facts)
+            for index, fact in facts:
+                embed = self._build_embed(index, fact)
+                await self.channel.send("Your regular serving of random Halloween facts", embed=embed)
+                self.last_fact = (index, fact)
+                await asyncio.sleep(INTERVAL)
+
+    @commands.command(name="hallofact", aliases=["hallofacts"], brief="Get the most recent Halloween fact")
+    async def get_last_fact(self, ctx):
+        """
+        Reply with the most recent Halloween fact.
+        """
+        if ctx.channel != self.channel:
+            return
+        index, fact = self.last_fact
+        embed = self._build_embed(index, fact)
+        await ctx.send("Halloween fact recap", embed=embed)
+
+    @staticmethod
+    def _build_embed(index, fact):
+        """
+        Builds a Discord embed from the given fact and its index.
+        """
+        emoji = random.choice(SPOOKY_EMOJIS)
+        title = f"{emoji} Halloween Fact #{index + 1}"
+        return discord.Embed(title=title, description=fact, color=PUMPKIN_ORANGE)
+
+
+def setup(bot):
+    bot.add_cog(HalloweenFacts(bot))