""" Messages API. """
from flask import abort
from flask import make_response
from flask import request

import features
from auth import scopes
from auth.permissions import SuperUserPermission
from data import model
from endpoints.api import (ApiResource, resource, nickname,
                           require_fresh_login, verify_not_prod, validate_json_request,
                           require_scope, show_if,)


@resource('/v1/messages')
class GlobalUserMessages(ApiResource):
  """ Resource for getting a list of super user messages """
  schemas = {
    'GetMessage': {
      'id': 'GetMessage',
      'type': 'object',
      'description': 'Messages that a super user has saved in the past',
      'properties': {
        'message': {
          'type': 'array',
          'description': 'A list of messages',
          'itemType': {
            'type': 'object',
            'properties': {
              'uuid': {
                'type': 'string',
                'description': 'The message id',
              },
              'content': {
                'type': 'string',
                'description': 'The actual message',
              },
            },
          },
        },
      },
    },
    'CreateMessage': {
      'id': 'CreateMessage',
      'type': 'object',
      'description': 'Create a new message',
      'properties': {
        'message': {
          'type': 'object',
          'description': 'A single message',
          'properties': {
            'content': {
              'type': 'string',
              'description': 'The actual message',
            },
          },
        },
      },
    }
  }

  @nickname('getGlobalMessages')
  def get(self):
    """ Return a super users messages """
    return {
      'messages': [message_view(m) for m in model.message.get_messages()],
    }

  @require_fresh_login
  @verify_not_prod
  @nickname('createGlobalMessage')
  @validate_json_request('CreateMessage')
  @require_scope(scopes.SUPERUSER)
  def post(self):
    """ Create a message """
    if not features.SUPER_USERS:
      abort(404)

    if SuperUserPermission().can():
      model.message.create([request.get_json()['message']])
      return make_response('', 201)

    abort(403)


@resource('/v1/message/<uuid>')
@show_if(features.SUPER_USERS)
class GlobalUserMessage(ApiResource):
  """ Resource for managing individual messages """
  @require_fresh_login
  @verify_not_prod
  @nickname('deleteGlobalMessage')
  @require_scope(scopes.SUPERUSER)
  def delete(self, uuid):
    """ Delete a message """
    if SuperUserPermission().can():
      model.message.delete_message([uuid])
      return make_response('', 204)

    abort(403)


def message_view(message):
  return {
    'uuid': message.uuid,
    'content': message.content,
  }