---
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#  Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
#  with the License. A copy of the License is located at
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#      http://www.apache.org/licenses/LICENSE-2.0
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#  or in the 'license' file accompanying this file. This file is distributed on an 'AS IS' BASIS, WITHOUT WARRANTIES
#  OR CONDITIONS OF ANY KIND, express or implied. See the License for the specific language governing permissions
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AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31

Description: 'IoT Device Monitoring'

Parameters:
  ApplicationConfigurationOverride:
    Description: This allows you to override any application configuration.  It should consists of a text-based content with a structure and syntax comprising key–value pairs for properties. Any configurations contained in this will override the configurations found and merged from the default .env files.
    Type: String

  Environment:
    Description: Name of environment.  Used to name the created resources.
    Type: String
    MinLength: 1

  AssetLibraryFunctionName:
    Description: AssetLibrary REST API function name
    Type: String
    Default: ''

Resources:
  IoTLifecycleConnectRule:
    Type: AWS::IoT::TopicRule
    Properties:
      TopicRulePayload:
        Actions:
          - Lambda:
              FunctionArn: !GetAtt IoTLifecycleEventLambda.Arn
        Description: 'Send IoT Lifecycle Event data to Lambda for connection status'
        AwsIotSqlVersion: '2016-03-23'
        RuleDisabled: false
        Sql: >-
          SELECT * FROM '$aws/events/presence/connected/+'

  IoTLifecycleConnectInvocationPermission:
    Type: AWS::Lambda::Permission
    Properties:
      SourceArn: !GetAtt IoTLifecycleConnectRule.Arn
      Action: lambda:InvokeFunction
      Principal: iot.amazonaws.com
      FunctionName: !GetAtt IoTLifecycleEventLambda.Arn
      SourceAccount: !Ref AWS::AccountId

  IoTLifecycleDisconnectRule:
    Type: AWS::IoT::TopicRule
    DependsOn: IoTLifecycleEventLambda
    Properties:
      TopicRulePayload:
        Actions:
          - Lambda:
              FunctionArn: !GetAtt IoTLifecycleEventLambda.Arn
        Description: 'Send IoT Lifecycle Event data to Lambda for disconnect status'
        AwsIotSqlVersion: '2016-03-23'
        RuleDisabled: false
        Sql: >-
          SELECT * FROM '$aws/events/presence/disconnected/+'

  IoTLifecycleInvocationPermission:
    Type: AWS::Lambda::Permission
    Properties:
      SourceArn: !GetAtt IoTLifecycleDisconnectRule.Arn
      Action: lambda:InvokeFunction
      Principal: iot.amazonaws.com
      FunctionName: !GetAtt IoTLifecycleEventLambda.Arn
      SourceAccount: !Ref AWS::AccountId

  IoTLifecycleLambdaRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          Effect: Allow
          Principal:
            Service: lambda.amazonaws.com
          Action: sts:AssumeRole
      Path: '/cdf/devicemonitoring/'
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AWSLambdaExecute
        - arn:aws:iam::aws:policy/AWSXrayWriteOnlyAccess
      Policies:
        - PolicyName: app_policies
          PolicyDocument:
            Version: '2012-10-17'
            Statement:
              - Sid: lambda
                Effect: Allow
                Action:
                  - lambda:InvokeFunction
                  - lambda:Invoke
                Resource:
                  - !Sub 'arn:aws:lambda:${AWS::Region}:${AWS::AccountId}:function:${AssetLibraryFunctionName}'

  IoTLifecycleEventLambda:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: !Sub 'cdf-deviceMonitoring-${Environment}'
      CodeUri: ../bundle.zip
      Handler: iot_lifecycle_event.lambda_handler
      MemorySize: 128
      Role: !GetAtt IoTLifecycleLambdaRole.Arn
      Runtime: nodejs16.x
      Timeout: 29
      Environment:
        Variables:
          APP_CONFIG_DIR: 'config'
          APP_CONFIG: !Ref ApplicationConfigurationOverride
          ASSETLIBRARY_API_FUNCTION_NAME: !Ref AssetLibraryFunctionName
      Tracing: Active