AWSTemplateFormatVersion: '2010-09-09'
Description: Amazon Pinpoint Twitter Channel.  This application will deliver Amazon Pinpoint triggered messages to Twitter using Twitter DirectMessage API.  Written in Python3.
Transform: AWS::Serverless-2016-10-31

Parameters:
  TOKEN:
    Type: String
    Description: TOKEN for Twitter application
  TOKENSECRET:
    Type: String
    Description: TOKEN_SECRET for Twitter application
  CONSUMERKEY:
    Type: String
    Description: CONSUMER_KEY for Twitter application
  CONSUMERSECRET:
    Type: String
    Description: CONSUMER_SECRET for Twitter application

Globals:
  Function:
    Timeout: 30

Metadata:
  AWS::ServerlessRepo::Application:
    Name: amazon-pinpoint-twitter-channel
    Description: Amazon Pinpoint Twitter Channel.  This application will deliver Amazon Pinpoint triggered messages to Twitter using Twitter DirectMessage API.  Written in Python3.
    Author: Amazon Pinpoint
    SpdxLicenseId: MIT-0
    LicenseUrl: LICENSE
    ReadmeUrl: README.md
    Labels: ['amazon-pinpoint', 'pinpoint', 'custom-channel', 'twitter', 'python']
    HomePageUrl: https://aws.amazon.com/pinpoint
    SemanticVersion: 1.0.1
    SourceCodeUrl: https://github.com/aws-samples/amazon-pinpoint-twitter-channel

Resources:
  PinpointTwitterChannelFunction:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: AmazonPinpointTwitterChannel
      CodeUri: pinpointtwitter/
      Policies:
        - Statement:
          - Sid: PinpointPutEvents
            Effect: Allow
            Action: mobiletargeting:PutEvents
            Resource: !Sub arn:${AWS::Partition}:mobiletargeting:${AWS::Region}:${AWS::AccountId}:*
      Handler: app.lambda_handler
      Runtime: python3.7
      Environment:
        Variables:
          CONSUMER_SECRET:
            Ref: CONSUMERSECRET
          TOKEN:
            Ref: TOKEN
          CONSUMER_KEY:
            Ref: CONSUMERKEY
          TOKEN_SECRET:
            Ref: TOKENSECRET

  PinpointInvokePermission:
    Type: AWS::Lambda::Permission
    Properties:
      Action: lambda:InvokeFunction
      FunctionName: !Ref PinpointTwitterChannelFunction
      Principal: !Sub pinpoint.${AWS::Region}.amazonaws.com
      SourceArn: !Sub arn:${AWS::Partition}:mobiletargeting:${AWS::Region}:${AWS::AccountId}:apps/*

Outputs:
  PinpointTwitterChannelFunction:
    Description: "A function invoked by an Amazon Pinpoint Campaign or Journey that sends a message to a user through Twitter"
    Value: !GetAtt PinpointTwitterChannelFunction.Arn