AWSTemplateFormatVersion: '2010-09-09'
Transform: 'AWS::Serverless-2016-10-31'
Description: Amazon IVS PutMetadata Dashboard

Globals:
  Function:
    Runtime: nodejs12.x
    Timeout: 30
    MemorySize: 128
    Environment:
      Variables:
        METADATAS_TABLE_NAME: !Ref Metadatas

Resources:
  IVSAccessPolicy:
    Type: AWS::IAM::Policy
    Properties:
      PolicyName: IVSAccess
      PolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: Allow
            Action:
              - 'ivs:ListChannels'
              - 'ivs:GetChannel'
              - 'ivs:PutMetadata'
            Resource: '*'
      Roles:
        - Ref: GetIVSChannelsLambdaRole
        - Ref: SendMetadataLambdaRole
  Metadatas:
    Type: 'AWS::DynamoDB::Table'
    Properties:
      AttributeDefinitions:
        - AttributeName: "Id"
          AttributeType: "S"
      KeySchema:
        - AttributeName: "Id"
          KeyType: HASH
      ProvisionedThroughput:
        ReadCapacityUnits: "5"
        WriteCapacityUnits: "5"
  CreateMetadataLambda:
    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: index.create
      CodeUri: lambda/
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref Metadatas
      Events:
        Api1:
          Type: Api
          Properties:
            Path: /
            Method: POST
  UpdateMetadataLambda:
    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: index.update
      CodeUri: lambda/
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref Metadatas
      Events:
        Api1:
          Type: Api
          Properties:
            Path: /update
            Method: POST # Workaround for CORS; should be PUT method on '/'
  GetMetadataLambda:
    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: index.get
      CodeUri: lambda/
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref Metadatas
      Events:
        Api1:
          Type: Api
          Properties:
            Path: /
            Method: GET
  GetIVSChannelsLambda:
    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: index.getChannels
      CodeUri: lambda/
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref Metadatas
      Events:
        Api1:
          Type: Api
          Properties:
            Path: /channels
            Method: GET
  SendMetadataLambda:
    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: index.send
      CodeUri: lambda/
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref Metadatas
      Events:
        Api1:
          Type: Api
          Properties:
            Path: /send
            Method: POST
  DeleteMetadataLambda:
    Type: 'AWS::Serverless::Function'
    Properties:
      Handler: index.delete
      CodeUri: lambda/
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref Metadatas
      Events:
        Api1:
          Type: Api
          Properties:
            Path: /delete
            Method: GET # Workaround for CORS; should be DELETE method on '/'

Outputs:
  ApiURL:
    Description: "API endpoint URL for Prod environment"
    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/"