bot.py

# coding=utf-8

import discord
import logging
import aiohttp

CO2_API = 'http://www.hqcasanova.com/co2/'
IPCC_REPORTS = {
    'ar5': {
        'wg1': {
           'url': 'https://www.ipcc.ch/report/ar5/wg1/',
            'title': 'Climate Change 2013: The Pysical Science Basis',
            'description': 'The Working Group I contribution to the Fifth Assessment Report of the Intergovernmental'
                           ' Panel on Climate Change (IPCC) provides a comprehensive assessment of the physical'
                           ' science basis of climate change since 2007 when the Fourth Assessment Report (AR4) was'
                           ' released.'
        },
        'wg2': {
            'url': 'https://www.ipcc.ch/report/ar5/wg2/',
            'title': 'Climate Change 2014: Impacts, Adaptation, and Vulnerability',
             'description': 'The assessment of impacts, adaptation, and vulnerability in the Working Group II'
                            ' contribution to the IPCC’s Fifth Assessment Report (WGII AR5) evaluates how patterns'
                            ' of risks and potential benefits are shifting due to climate change since 2007 when'
                            ' the Fourth Assessment Report (AR4) was released.'
        },
        'wg3': {
            'url': 'https://www.ipcc.ch/report/ar5/wg3/',
            'title': 'Climate Change 2014: Mitigation of Climate Change',
            'description': 'The Working Group III contribution to the IPCC’s Fifth Assessment Report (AR5) assesses'
                           ' literature on the scientific, technological, environmental, economic and social aspects'
                           ' of mitigation of climate change since 2007 when the Fourth Assessment Report (AR4) was'
                           ' released.'
        }
    },
    'sr15': {
        'url': 'https://www.ipcc.ch/sr15/',
        'title': 'Global Warming of 1.5 ºC',
        'description': 'An IPCC special report on the impacts of global warming of 1.5 °C above pre-industrial levels'
                       ' and related global greenhouse gas emission pathways, in the context of strengthening the global'
                       ' response to the threat of climate change, sustainable development, and efforts to eradicate'
                       ' poverty.'
    }
}

logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger()
client = discord.Client()

async def fetch(session, url):
    async with session.get(url) as response:
        return await response.text()

async def retrieve_co2():
    async with aiohttp.ClientSession() as session:
        return await fetch(session, CO2_API)

async def fetch_ipcc_report(message, report_name, report_group):
    if report_name not in IPCC_REPORTS:
        await message.channel.send('Rapport {} inconnu ({}).'.format(report_name, IPCC_REPORTS.keys()))
        return

    report = IPCC_REPORTS[report_name]
    if report_group is None:
        report_info = report
    else:
        if report_group not in report:
            await message.channel.send('Rapport {} inconnu ({})'.format(report_group, report.keys()))
            return
        report_info = report[report_group]

    url = report_info['url']
    title = report_info['title']
    description = report_info['description']
    embed = discord.Embed(title=title, url=url, description=description, type="rich")
    await message.channel.send('Voici le rapport.', embed=embed)

@client.event
async def on_ready():
    print("Successfully logged-in as {0.user}".format(client))

@client.event
async def on_message(message):
    if message.author == client.user:
        return

    message_parts = message.content.split()
    command = message_parts[0]

    if command == '$co2':
        co2_level = await retrieve_co2()
        embed=discord.Embed(title="https://www.esrl.noaa.gov/gmd/ccgg/trends/monthly.html",
                            url="https://www.esrl.noaa.gov/gmd/ccgg/trends/monthly.html",
                            description="Mauna Loa CO2",
                            type="rich")
        embed.set_image(url="https://www.esrl.noaa.gov/gmd/webdata/ccgg/trends/co2_data_mlo.png")
        await message.channel.send('Le niveau actuel de CO2 dans l\'atmosphere est de {0}'.format(co2_level),
                                   embed=embed)

    elif command == '$ipcc' or command == '$giec':
        if len(message_parts) < 2:
            return

        report_name = message_parts[1]
        report_group = message_parts[2] if len(message_parts) > 2 else None
        await fetch_ipcc_report(message, report_name, report_group)


client.run('')