import settings
import asyncio
import json
from datetime import datetime
from uuid import uuid4
from telethon import TelegramClient, events

from aiohttp import web

bot = TelegramClient('data/bot', settings.API_ID, settings.API_HASH).start(bot_token=settings.API_TOKEN)
TANNER = 79316791

messages = {}

@bot.on(events.NewMessage(incoming=True))
async def new_message(event):
    text = event.raw_text
    sender = event.sender_id
    print(sender, text)

    if sender != TANNER:
        return
    if not text.startswith('/allow_'):
        return

    mid = text.replace('/allow_', '')
    try:
        data = messages[mid]
    except KeyError:
        await event.reply('Message ID not found. Did the bot restart?')
        return

    entry = '--------------------------\n\n{} - {}'.format(data['date'], data['name'])

    website = data['website']
    if website:
        if not website.startswith('http://') and not website.startswith('https://'):
            website = 'http://' + website
        entry += ' (<a href="{0}" target="_blank" rel="noreferrer noopener">{0}</a>)'.format(website)

    entry += '\n\n{}\n\n'.format(data['message'])

    with open('data/guestbook.html', 'a') as f:
        f.write(entry)

    await event.reply('Entry added to t0.vc/g')
    print('Added', data)


async def submit(request):
    data = dict(await request.post())
    data['date'] = str(datetime.today().date())
    mid = str(uuid4()).split('-')[0]
    print(mid, data)

    try:
        name = data['name']
        website = data.get('website', '')
        message = data['message']
    except KeyError:
        raise web.HTTPBadRequest(reason='You are missing something.')

    if len(name) > 50:
        raise web.HTTPBadRequest(reason='Name is too long.')
    if len(website) > 100:
        raise web.HTTPBadRequest(reason='Website is too long.')
    if len(message) > 1000:
        raise web.HTTPBadRequest(reason='Message is too long.')

    report = 'Name: {}\n\nWebsite: {}\n\nMessage: {}\n\n/allow_{}'
    await bot.send_message(TANNER, message=report.format(name, website, message, mid))
    messages[mid] = data

    with open('data/messages.log', 'a') as f:
        f.write(json.dumps(data)+'\n')

    return web.Response(text='Thanks! Your message is pending approval.')


if __name__ == '__main__':
    bot.start()
    app = web.Application()
    app.router.add_post('/', submit)
    web.run_app(app, port=8123)