template.process.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31

Description: Telegram Bot Connector

Parameters:
  EventBus:
    Type: String
    Description: "The connector event bus name"
  UsernameWhitelist:
    Type: CommaDelimitedList
    Description: "Allowed usernames, separated by comma"
    Default: ""
  MenuType:
    Type: String
    Description: "Chat menu type"
    Default: "default"
    AllowedValues:
      - "default"
      - "commands"
      - "web_app"
  WelcomeText:
    Type: String
    Description: "Bot welcome text"
    Default: "Hello, I am a bot that send back the text you send me. Use commands /keyboard, /inline or /webapp for some examples"
  WebAppUrl:
    Type: String
    Description: "Web App URL"
    Default: ""

Conditions:
  IsUsernameWhitelistEnabled: !Not [ !Equals [ !Join [ "", !Ref UsernameWhitelist ], "" ] ]

Resources:

  StartReceivedStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-start"
      DefinitionUri: states/process/start.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
        WelcomeText: !Ref WelcomeText
        MenuType: !Ref MenuType
        WebAppUrl: !Ref WebAppUrl
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                message:
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true
                  text:
                    - "/start"

  CommandInlineStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-command-inline"
      DefinitionUri: states/process/commands/inline.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                message:
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true
                  text:
                    - "/inline"

  CommandKeyboardStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-command-keyboard"
      DefinitionUri: states/process/commands/keyboard.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                message:
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true
                  text:
                    - "/keyboard"

  CommandWebAppStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-command-webapp"
      DefinitionUri: states/process/commands/webapp.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
        WebAppUrl: !Ref WebAppUrl
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                message:
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true
                  text:
                    - "/webapp"

  CallbackInlineStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-callback-inline"
      DefinitionUri: states/process/callbacks/inline.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                callback_query:
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true

  WebAppCallbackStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-webapp-callback"
      DefinitionUri: states/process/webapp/callback.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                message:
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true
                  web_app_data:
                    data:
                      - exists: true

  InlineAnswerStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-inline-answer"
      DefinitionUri: states/process/inline/answer.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                inline_query:
                  id:
                    - exists: true
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true

  MessageReceivedStateMachine:
    Type: AWS::Serverless::StateMachine
    Properties:
      Name: !Sub "${AWS::StackName}-message"
      DefinitionUri: states/process/message.asl.yaml
      DefinitionSubstitutions:
        EventBusName: !Ref EventBus
        EventSource: !Ref AWS::StackName
      Policies:
        - EventBridgePutEventsPolicy:
            EventBusName: !Ref EventBus
      Events:
        ReceivedEvent:
          Type: EventBridgeRule
          Properties:
            EventBusName: !Ref EventBus
            Pattern:
              source:
                - org.telegram.webhook
              detail-type:
                - 'Webhook Event Received'
              detail:
                message:
                  from:
                    username: !If 
                      - IsUsernameWhitelistEnabled
                      - !Ref UsernameWhitelist
                      - - exists: true
                  text:
                    - anything-but: 
                        - "/start"
                        - "/inline"
                        - "/keyboard"
                        - "/webapp"