AWSTemplateFormatVersion: "2010-09-09"
Transform: 'AWS::Serverless-2016-10-31'
Description: >-
             Setting up adapters for additional meter data formats (qs-1r18anahd)

Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
      - Label:
          default: Adapter setup
        Parameters:
          - LandingZoneS3Bucket
          - Adapter
          - AdapterMemoryInMB
          - AdapterTimeoutInSeconds
          - LandingzoneTransformer
      - Label:
          default: Quickstart setup
        Parameters:
          - QSS3BucketName
          - QSS3KeyPrefix
    ParameterLabels:
      LandingZoneS3Bucket:
        default: LandingZone S3 Bucket
      Adapter:
        default: Deployed adapter
      AdapterMemoryInMB:
        default: Memory limit for Adapter trigger
      AdapterTimeoutInSeconds:
        default: Timeout for Adapter trigger
      LandingzoneTransformer:
        default: Landing zone transformer that reads the landing-zone data
      QSS3BucketName:
        default: Quick Start S3 bucket name
      QSS3KeyPrefix:
        default: Quick Start S3 key prefix

Parameters:
  Adapter:
    Type: String
    Default: mrasco
    Description: >-
      Defines the special adapters are needed for raw data.
      This will deploy a S3 trigger that invokes a Lambda to transform files added in additional folder named
      after adapter in landing zone bucket.
    AllowedValues:
      - mrasco

  LandingZoneS3Bucket:
    Type: String
    MinLength: '1'
    Description: You must provide a value if you chose "No" for the parameter CreateLandingZoneS3Bucket.
      Otherwise, keep this box blank.

  LandingzoneTransformer:
    Type: String
    Default: london
    Description: 'Defines the transformer for the input data in the landing zone. Default: Transformer that works with the London test data set.'
    AllowedValues:
      - default
      - london

  QSS3KeyPrefix:
    AllowedPattern: '^[0-9a-zA-Z-/]*[/]$'
    ConstraintDescription: >-
      Quick Start key prefix can include numbers, lowercase letters, uppercase
      letters, hyphens (-), and forward slash (/) and must terminate in a forward slash.
    Default: quickstart-aws-utility-meter-data-analytics-platform/
    Type: String
    Description: S3 key prefix for the Quick Start assets. Quick Start key prefix
      can include numbers, lowercase letters, uppercase letters, hyphens (-), and
      forward slash (/).

  QSS3BucketName:
    AllowedPattern: '^[0-9a-zA-Z]+([0-9a-zA-Z-]*[0-9a-zA-Z])*$'
    ConstraintDescription: >-
      Quick Start bucket name can include numbers, lowercase letters, uppercase
      letters, and hyphens (-). It cannot start or end with a hyphen (-).
    Default: aws-quickstart
    Description: >-
      S3 bucket name for the Quick Start assets.
      Only change this value if you customize or extend the Quick Start for your own use.
      This string can include numbers, lowercase letters, uppercase letters, and hyphens (-).
      It cannot start or end with a hyphen (-).
    Type: String

  AdapterMemoryInMB:
    Type: Number
    MinValue: 128
    MaxValue: 10240
    Default: 1500
    Description: Memory needed in MBs for lambda function triggering adapter logic.

  AdapterTimeoutInSeconds:
    Type: Number
    MinValue: 3
    MaxValue: 900
    Default: 300
    Description: Timeout in seconds for lambda function triggering adapter logic.

Conditions:
  UsingDefaultBucket: !Equals [!Ref QSS3BucketName, 'aws-quickstart']

Mappings:
  DateFormatMap:
    default:
      format: "%Y%m%d%H24%M%S"
    london:
      format: "%Y-%m-%d %H:%M:%S"

Resources:
  AdapterLandingZoneS3Bucket:
    Type: "AWS::S3::Bucket"

  AdapterFunction:
    Type: 'AWS::Serverless::Function'
    Properties:
      CodeUri:
        Bucket: !If [ UsingDefaultBucket, !Sub '${QSS3BucketName}-${AWS::Region}', !Ref QSS3BucketName ]
        Key: !Sub '${QSS3KeyPrefix}assets/functions/packages/adapter_${Adapter}.zip'
      Description: lambda to be called on object creation to adapt objects to clean format S3
      Environment:
        Variables:
          TargetS3Bucket: !Ref LandingZoneS3Bucket
          TargetS3BucketPrefix: ''
          DATE_FORMAT: !FindInMap [DateFormatMap, !Ref LandingzoneTransformer, "format"]
      Events:
        AddRawFilesEvent:
          Properties:
            Bucket:
              Ref: AdapterLandingZoneS3Bucket
            Events: s3:ObjectCreated:*
          Type: S3
      Handler: 'app.lambda_handler'
      MemorySize: !Ref AdapterMemoryInMB
      Role:
        Fn::GetAtt:
          - RunLambdaRole
          - Arn
      Runtime: python3.8
      Timeout: !Ref AdapterTimeoutInSeconds


  RunLambdaRole:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service: 'lambda.amazonaws.com'
            Action: 'sts:AssumeRole'
      ManagedPolicyArns:
        - !Sub 'arn:${AWS::Partition}:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole'
        - !Sub 'arn:${AWS::Partition}:iam::aws:policy/AmazonS3FullAccess'