AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Payments Dashboard - S3 CSV ingestion to Slack App Home

Parameters:
  SlackBotToken:
    Type: AWS::SSM::Parameter::Value<String>
    Default: /payments-dashboard/slack-bot-token
    NoEcho: true

Globals:
  Function:
    Runtime: nodejs20.x
    Timeout: 30
    MemorySize: 256
    Environment:
      Variables:
        TABLE_NAME: !Ref DashboardTable

Resources:
  PaymentsCsvBucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Sub seahaven-payments-csv-${AWS::AccountId}

  DashboardTable:
    Type: AWS::DynamoDB::Table
    Properties:
      TableName: PaymentsDashboard
      BillingMode: PAY_PER_REQUEST
      AttributeDefinitions:
        - AttributeName: pk
          AttributeType: S
      KeySchema:
        - AttributeName: pk
          KeyType: HASH

  ProcessPaymentCsvFunction:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: payments-processPaymentCsv
      Handler: src/processPaymentCsv.handler
      Events:
        CsvUpload:
          Type: S3
          Properties:
            Bucket: !Ref PaymentsCsvBucket
            Events: s3:ObjectCreated:*
            Filter:
              S3Key:
                Rules:
                  - Name: suffix
                    Value: .csv
      Policies:
        - S3ReadPolicy:
            BucketName: !Sub seahaven-payments-csv-${AWS::AccountId}
        - DynamoDBCrudPolicy:
            TableName: !Ref DashboardTable

  SlackAppHomeFunction:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: payments-slackAppHome
      Handler: src/slackAppHome.handler
      Environment:
        Variables:
          SLACK_BOT_TOKEN: !Ref SlackBotToken
      Events:
        SlackEvent:
          Type: HttpApi
          Properties:
            Path: /slack/events
            Method: POST
      Policies:
        - DynamoDBReadPolicy:
            TableName: !Ref DashboardTable

Outputs:
  SlackEventUrl:
    Description: URL to set as the Slack app Request URL
    Value: !Sub https://${ServerlessHttpApi}.execute-api.${AWS::Region}.amazonaws.com/slack/events
  CsvBucket:
    Description: S3 bucket for CSV uploads
    Value: !Ref PaymentsCsvBucket