Added Currency Conversion

cogs/fun/autoconvert.py

@@ -0,0 +1,75 @@
+import discord
+from discord.ext import commands
+from util import logging, checking
+import re
+
+class AutoConvert(commands.Cog):
+
+    def __init__(self, client):
+        self.client = client
+        self.currencies = ['€', '$', '£']
+        self.currency_conversion = {
+            "€$":1.1144,
+            "€£":0.85
+        }
+
+    '''
+        Checks wether a message contains currency symbols
+        Returns an array of prices found
+
+        €, $, £
+    '''
+    def contains_currency(self, message : discord.Message) -> []:
+        prices = []
+        words = message.content.split(' ')
+        for word in words:
+            for currency in self.currencies:
+                if currency in word:
+                    try:
+                        prices.append([float(re.findall(r"[-+]?\d*\.\d+|\d+", word)[0]), currency])
+                    except:
+                            pass
+                    break
+
+        return prices
+
+    def convert_currency(self, _from, to, value):
+        if _from == '€':
+            conversion_rate = self.currency_conversion[_from + to]
+        elif to == '€':
+            conversion_rate = 1/self.currency_conversion[to + _from]
+        else:
+            conversion_rate = self.currency_conversion['€' + to] / self.currency_conversion['€' + _from]
+
+        return round(value * conversion_rate, 2)
+                
+    @commands.Cog.listener()
+    async def on_message(self, message):
+        if message.author.bot:
+            return
+
+        empty = True
+
+        currencies = self.contains_currency(message)
+        embed = discord.Embed(title="Here are some useful conversions:", color=0x111387)
+
+        if len(currencies) != 0:
+            empty = False
+            for element in currencies:
+                currency_string = ""
+                for currency in self.currencies:
+                    if currency == element[1]:
+                        continue
+                    currency_string += f"{self.convert_currency(element[1], currency, element[0])}{currency}, "
+                embed.add_field(name=str(element[0])+element[1], value=currency_string[:-2])
+
+        
+
+        if not empty:
+            await message.channel.send(embed=embed)
+
+
+
+
+def setup(client):
+    client.add_cog(AutoConvert(client))