AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: 'Comment Moderator - automates the approval of Disqus forum comments
  based on sentiment analysis.

  '
Metadata:
  AWS::ServerlessRepo::Application:
    Name: Comment-Moderator
    Description: This application polls a forum on Disqus for unapproved comments
      and will approve comments automatically based upon sentiment analysis.
    Author: James Beswick
    SpdxLicenseId: mit-0
    LicenseUrl: s3://jbesw-sar-public-source/bb66c8f9891604947010c7e819f4d7ce
    ReadmeUrl: s3://jbesw-sar-public-source/736e1f7065a2a1d023a67023331d7254
    Labels:
    - disqus
    - moderation
    - sentiment
    - lambda
    HomePageUrl: https://git-codecommit.us-east-1.amazonaws.com/v1/repos/01-comment-moderator
    SemanticVersion: 1.0.0
    SourceCodeUrl: https://git-codecommit.us-east-1.amazonaws.com/v1/repos/01-comment-moderator
Parameters:
  ForumName:
    Type: String
    Default: yourDisqusForumName
    Description: (Required) The name of the Disqus forum you want to poll
    AllowedPattern: ^[A-Za-z0-9-]+$
    ConstraintDescription: Required parameter.
  AccessToken:
    Type: String
    Default: yourDisqusAccessToken
    Description: (Required) Disqus API access token
    AllowedPattern: ^[A-Za-z0-9]+$
    ConstraintDescription: Required parameter.
  APIkey:
    Type: String
    Default: yourDisqusAPIkey
    Description: (Required) Disqus API key
    AllowedPattern: ^[A-Za-z0-9]+$
    ConstraintDescription: Required parameter.
  APIsecret:
    Type: String
    Default: yourDisqusAPIsecret
    Description: (Required) Disqus API secret
    AllowedPattern: ^[A-Za-z0-9]+$
    ConstraintDescription: Required parameter.
Globals:
  Function:
    Timeout: 15
    Environment:
      Variables:
        forum:
          Ref: ForumName
        ddb_table:
          Ref: PollerTable
        access_token:
          Ref: AccessToken
        api_key:
          Ref: APIkey
        api_secret:
          Ref: APIsecret
Resources:
  PollerFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: s3://jbesw-sar-public-source/9a35d1f90a1dadeafa3c6af0401eb4bb
      Handler: app.lambdaHandler
      Runtime: nodejs12.x
      Policies:
      - DynamoDBCrudPolicy:
          TableName:
            Ref: PollerTable
      - Statement:
        - Sid: comprehendDetectSentimentPolicy
          Effect: Allow
          Action:
          - comprehend:DetectSentiment
          Resource: '*'
      Events:
        Schedule1:
          Type: Schedule
          Properties:
            Schedule: rate(15 minutes)
      Tags:
        AppName: AWSDeveloperAdvocateSample
  ProcessorFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: s3://jbesw-sar-public-source/5ae3ed7185541f429a7e1a2ab8bb39e6
      Handler: app.lambdaHandler
      Runtime: nodejs12.x
      Policies:
      - DynamoDBCrudPolicy:
          TableName:
            Ref: PollerTable
      Events:
        DynamoDB1:
          Type: DynamoDB
          Properties:
            Stream:
              Fn::GetAtt:
              - PollerTable
              - StreamArn
            StartingPosition: TRIM_HORIZON
            BatchSize: 100
      Tags:
        AppName: AWSDeveloperAdvocateSample
  PollerTable:
    Type: AWS::DynamoDB::Table
    Properties:
      AttributeDefinitions:
      - AttributeName: disqusId
        AttributeType: S
      KeySchema:
      - AttributeName: disqusId
        KeyType: HASH
      BillingMode: PAY_PER_REQUEST
      TimeToLiveSpecification:
        AttributeName: created
        Enabled: true
      StreamSpecification:
        StreamViewType: NEW_IMAGE
Outputs:
  PollerFunction:
    Description: Poller Lambda Function ARN
    Value:
      Fn::GetAtt:
      - PollerFunction
      - Arn
  PollerFunctionIamRole:
    Description: Implicit IAM Role created for Poller function
    Value:
      Fn::GetAtt:
      - PollerFunctionRole
      - Arn
  PollerTable:
    Value:
      Fn::GetAtt:
      - PollerTable
      - Arn
    Description: Table name of the newly created DynamoDB table