template.yaml

AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Description: >
  video-plugin-plugin_tester

  SAM Template for Plugin Tester stack, which triggers plugin
  the same way the production system could.

Parameters:
  pluginTitle:
    Description: Identifier for this plugin
    Type: String
    Default: PythonMinimalPlugin

  eventHook:
    Description: Identifier for this plugin
    Type: String
    Default: postValidate

Resources:

  PluginTaskSuccessFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: code/
      Handler: app.handler
      Runtime: nodejs18.x
      Timeout: 3
      Tracing: Active
      Environment:
        Variables:
          PluginLifecycleWorkflow: !Ref PluginLifecycleWorkflow
      Policies:
        - Statement:
            - Effect: Allow
              Resource: !Ref PluginLifecycleWorkflow
              Action:
                - states:sendTaskSuccess

  PluginSuccessRule:
    Type: AWS::Events::Rule
    Properties:
      EventBusName: default
      EventPattern:
        source:
          - prefix: video.plugin
        detail-type:
          - prefix: plugin-complete
      State: ENABLED
      Targets: 
        - Arn: !GetAtt PluginTaskSuccessFunction.Arn
          Id: PluginSuccessRuleLambdaTarget

  PluginSuccessRulePermission:
    Type: AWS::Lambda::Permission
    Properties: 
      FunctionName: !Ref PluginTaskSuccessFunction
      Action: "lambda:InvokeFunction"
      Principal: "events.amazonaws.com"
      SourceArn: !GetAtt PluginSuccessRule.Arn
  
  PluginLifecycleWorkflow:
    Type: AWS::Serverless::StateMachine # More info about State Machine Resource: https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-resource-statemachine.html
    Properties:
      DefinitionSubstitutions:
        pluginTitle: !Ref pluginTitle
        eventHook: !Ref eventHook
      DefinitionUri: workflow/statemachine.asl.json
      Tracing: 
        Enabled: True
      Policies: # Find out more about SAM policy templates: https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-policy-templates.html
        - EventBridgePutEventsPolicy:
            EventBusName: "default"
        - AWSXRayDaemonWriteAccess
        
  PluginEventRegistry:
    Type: AWS::EventSchemas::Registry
    Properties:
      Description: Tracks events for the video plugin platform

  PluginTesterWorkflowTriggerEventSchema:
    Type: AWS::EventSchemas::Schema
    Properties:
      RegistryName: !GetAtt PluginEventRegistry.RegistryName
      SchemaName: PluginTesterWorkflowTriggerEventSchema
      Description: 'Event used to trigger the plugin tester workflow'
      Type: JSONSchemaDraft4
      Content: >
        {
          "$schema": "http://json-schema.org/draft-04/schema#",
          "type": "object",
          "properties": {
            "eventHook": {
              "type": "string"
            },
            "pluginTitle": {
              "type": "string"
            }
          },
          "required": [
            "eventHook",
            "pluginTitle"
          ]
        }
        
Outputs:
  PluginLifecycleWorkflow:
    Description: PluginLifecycleWorkflow Step Function Workflow ARN
    Value: !GetAtt PluginLifecycleWorkflow.Arn
  PluginSuccessEventRuleName:
    Description: Name of the EventBridge rule triggering our success function.
    Value: !Ref PluginSuccessRule
  PluginEventRegistryName:
    Description: Name of the event registry for tracking video plugin platform events
    Value: !GetAtt PluginEventRegistry.RegistryName
  PluginTesterWorkflowTriggerEventSchemaName:
    Description: Name of the plugin tester workflow trigger event schema.
    Value: !GetAtt PluginTesterWorkflowTriggerEventSchema.SchemaName