# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: MIT-0
AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Description: "Steady State Event Generator: Demonstration of workflow to generate steady state emission of events to EventBridge."

Parameters:
  ParameterPrefix:
    Type: String
    Default: "demo-event-emitter"
    Description: "Prefix to be used in names of the things created by this stack."
  

Resources:
  ApplicationRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument: 
        Version: "2012-10-17"
        Statement: 
          - 
            Effect: "Allow"
            Principal: 
              Service: 
                - "states.amazonaws.com"
            Action: 
              - "sts:AssumeRole"
      Policies:
        - PolicyName: AppPolicy
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              -
                Effect: Allow
                Action:
                - events:PutTargets
                - events:PutRule
                - events:PutEvents
                - events:DescribeRule
                - states:StartExecution
                - xray:PutTraceSegments
                - xray:PutTelemetryRecords
                - xray:GetSamplingRules
                - xray:GetSamplingTargets
                - logs:CreateLogDelivery
                - logs:GetLogDelivery
                - logs:UpdateLogDelivery
                - logs:DeleteLogDelivery
                - logs:ListLogDeliveries
                - logs:PutResourcePolicy
                - logs:DescribeResourcePolicies
                - logs:DescribeLogGroups
                - logs:PutLogEvents
                - logs:CreateLogGroup
                - logs:CreateLogStream
                - cloudwatch:PutMetricData
                Resource: '*'
              - Effect: Allow
                Action:
                  - dynamodb:GetItem
                  - dynamodb:PutItem
                  - dynamodb:UpdateItem
                  - dynamodb:DeleteItem
                Resource: !Join ["",["arn:",!Ref AWS::Partition,":dynamodb:",!Ref AWS::Region,":",!Ref AWS::AccountId,":table/",!Join ["",[!Ref ParameterPrefix, "_event-pusher-config"]] ]]
              -
                Effect: Allow
                Action:
                - sqs:ReceiveMessage
                - sqs:DeleteMessage
                - sqs:GetQueueAttributes
                - sqs:SendMessage
                Resource: !GetAtt SQSQueue.Arn

  StateMachineCreateDataset:
    Type: AWS::Serverless::StateMachine
    Properties:
      Type: "STANDARD"
      Name: !Join ["",[!Ref ParameterPrefix, "_generate-steady-state-workload"]]
      Role: !GetAtt ApplicationRole.Arn
      DefinitionSubstitutions:
        dynamodb_table_config: !Join ["",[!Ref ParameterPrefix, "_event-pusher-config"]]
        sqs_queue_url: !GetAtt SQSQueue.QueueUrl
      DefinitionUri: statemachines/event_emitter.yaml


  TableCurrentTicketStatus:
    Type: AWS::DynamoDB::Table
    Properties: 
      AttributeDefinitions: 
        - 
          AttributeName: "config_id"
          AttributeType: "S"
      BillingMode: PAY_PER_REQUEST
      KeySchema: 
        - 
          AttributeName: "config_id"
          KeyType: "HASH"
      TableName: !Join ["",[!Ref ParameterPrefix, "_event-pusher-config"]] 
  
  SQSQueue:
    Type: AWS::SQS::Queue
    Properties:
      MessageRetentionPeriod: 60