AWSTemplateFormatVersion: '2010-09-09'
Description: Creates Amazon Lex Omni-Channel Chatbot 
Transform: 'AWS::Serverless-2016-10-31'

Resources:
  UsersDDBTable:
    Type: AWS::DynamoDB::Table
    Properties:
      TableName: !Sub "${AWS::StackName}-Users"
      AttributeDefinitions:
      - AttributeName: userId
        AttributeType: S
      - AttributeName: phone
        AttributeType: S
      KeySchema:
      - AttributeName: userId
        KeyType: HASH
      ProvisionedThroughput:
        ReadCapacityUnits: '3'
        WriteCapacityUnits: '3'
      GlobalSecondaryIndexes:
      - IndexName: phoneindex
        KeySchema:
        - AttributeName: phone
          KeyType: HASH
        Projection:
          ProjectionType: ALL
        ProvisionedThroughput:
          ReadCapacityUnits: '3'
          WriteCapacityUnits: '3'

  UserPendingAccountsDDBTable:
    Type: AWS::DynamoDB::Table
    Properties:
      TableName: !Sub "${AWS::StackName}-UserPendingAccounts"
      AttributeDefinitions:
      - AttributeName: userName
        AttributeType: S
      - AttributeName: planName
        AttributeType: S
      KeySchema:
      - AttributeName: userName
        KeyType: HASH
      - AttributeName: planName
        KeyType: RANGE
      ProvisionedThroughput:
        ReadCapacityUnits: '3'
        WriteCapacityUnits: '3'

  UserExistingAccountsDDBTable:
    Type: AWS::DynamoDB::Table
    Properties:
      TableName: !Sub "${AWS::StackName}-UserExistingAccounts"
      AttributeDefinitions:
      - AttributeName: userName
        AttributeType: S
      - AttributeName: planName
        AttributeType: S
      KeySchema:
      - AttributeName: userName
        KeyType: HASH
      - AttributeName: planName
        KeyType: RANGE
      ProvisionedThroughput:
        ReadCapacityUnits: '3'
        WriteCapacityUnits: '3'

  BotHandlerFunction:
    Type: AWS::Serverless::Function
    Properties:
      Description: "Lambda handler for Lex banking bot."
      FunctionName: !Sub "${AWS::StackName}-OmniLexHandler"
      CodeUri: "s3://west-omni-lex-lambda-artifacts/BotHandler/index.js.zip"
      Runtime: nodejs12.x
      MemorySize: 256
      Timeout: 20
      Handler: index.handler
      Policies:
        Statement:
        - Effect: Allow
          Action:
          - dynamodb:*
          Resource:
          - "*"
      Environment:
        Variables:
          USER_DDB_TABLE: !Ref UsersDDBTable
          USER_PENDING_ACCOUNTS_DDB_TABLE: !Ref UserPendingAccountsDDBTable
          USER_EXISTING_ACCOUNTS_DDB_TABLE: !Ref UserExistingAccountsDDBTable


  DataLoaderFunction:
    Type: AWS::Serverless::Function
    Properties:
      Description: "Lambda function to load the plan catalog."
      CodeUri: "s3://west-omni-lex-lambda-artifacts/AccountLoader/Archive.zip"
      Runtime: nodejs12.x
      MemorySize: 256
      Timeout: 20
      Handler: index.handler
      Policies:
        Statement:
          - Effect: Allow
            Action:
            - dynamodb:*
            Resource: 
            - "*"
      Environment:
        Variables:
          USER_EXISTING_ACCOUNTS_DDB_TABLE: !Ref UserExistingAccountsDDBTable

  LoadPlanData:
    Properties:
      ServiceToken: !GetAtt DataLoaderFunction.Arn
    Type: "Custom::LoadDynamoDB"

  AmplifyRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - amplify.amazonaws.com
            Action:
              - sts:AssumeRole
      Policies:
        - PolicyName: Amplify
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action: "amplify:*"
                Resource: "*"

  AmplifyApp:
    Type: "AWS::Amplify::App"
    Properties:
      Name: "Financial Services Front-End"
      Repository: https://github.com/kyleblocksom/AWS
      AccessToken: "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"
      Description: Octank example app
      IAMServiceRole: !GetAtt AmplifyRole.Arn

  AmplifyBranch:
    Type: "AWS::Amplify::Branch"
    Properties:
      AppId: !GetAtt AmplifyApp.AppId
      BranchName: "main"

  KendraIndexRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - kendra.amazonaws.com
            Action:
              - sts:AssumeRole
      Policies:
        - PolicyName: KendraIndexPolicy
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action: "cloudwatch:PutMetricData"
                Resource: "*"
              - Effect: Allow
                Action: "logs:DescribeLogGroups"
                Resource: "*"
              - Effect: Allow
                Action: "logs:CreateLogGroup"
                Resource: "arn:aws:logs:us-west-2:239380694500:log-group:/aws/kendra/*"
              - Effect: Allow
                Action: 
                  - "logs:DescribeLogStreams"
                  - "logs:CreateLogStream"
                  - "logs:PutLogEvents"
                Resource: "arn:aws:logs:us-west-2:239380694500:log-group:/aws/kendra/*:log-stream:*"

  KendraFAQRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - kendra.amazonaws.com
            Action:
              - sts:AssumeRole
      Policies:
        - PolicyName: KendraFAQPolicy
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action: "s3:GetObject"
                Resource: "arn:aws:s3:::west-lexbot-faq-kendra/*"

  KendraIndex:
    Type: AWS::Kendra::Index
    Properties: 
      Edition: "DEVELOPER_EDITION"
      Name: "Kendra-Lex-Index"
      RoleArn: !GetAtt KendraIndexRole.Arn

  KendraFAQ:
    Type: AWS::Kendra::Faq
    Properties: 
      FileFormat: "CSV"
      IndexId: !GetAtt KendraIndex.Id
      Name: "Kendra-Lex-FAQ"
      RoleArn: !GetAtt KendraFAQRole.Arn
      S3Path: 
        Bucket: "west-lexbot-faq-kendra"
        Key: "help-desk-faq.csv"

Outputs:

  DefaultDomain:
    Value: !GetAtt AmplifyApp.DefaultDomain