import os
import logging

MASTODON_INSTANCE = os.environ.get("MASTODON_INSTANCE")
MASTODON_ACCESS_TOKEN = os.environ.get('MASTODON_ACCESS_TOKEN')

API_STATUSES = '/api/v1/statuses'
API_STATUS_CONTEXT = '/api/v1/statuses/%(id)s/context'

logger = logging.getLogger(__name__)

class Mastodon:
  def __init__(self, aiosession, instance=None, access_token=None):
    self.aiosession = aiosession
    self.instance = instance if instance is not None else MASTODON_INSTANCE
    self.access_token = access_token if access_token is not None else MASTODON_ACCESS_TOKEN

  async def get(self, instance, request, params={}):
    async with self.aiosession.get(
      'https://{}{}'.format(
        instance, request
      ),
      params=params,
      headers={
        'Authorization': f'Bearer {self.access_token}'
      } if self.access_token else {}
    ) as response:
      if not response.ok:
        logger.error('{} {}'.format(request, response.status))
        raise Exception('{} {}'.format(request, response.status))
      
      return await response.json()
    
  async def post(self, instance, request, data):
    async with self.aiosession.post(
      'https://{}{}'.format(
        instance,
        request,
      ),
      json=data,
      headers={
        'Authorization': f'Bearer {self.access_token}'
      } if self.access_token else {}
    ) as response:

      if not response.ok:
        logger.error('{} {} {}'.format(instance, request, response.status))
        raise Exception('{} {} {}'.format(instance, request, response.status))

      return await response.json()
    
  async def statusPost(self, status):
    return await self.post(
      self.instance,
      API_STATUSES,
      data={
        'status': status,
        'visibility': 'direct'
      })
  
  async def statusContext(self, id):
    return await self.get(
      self.instance,
      API_STATUS_CONTEXT % {
        'id': id
      }
    )