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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
#  and limitations under the License.
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AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Description: CDF (AWS Connected Device Framework)

Parameters:
  Environment:
    Description: Name of environment.  Used to name the created resources.
    Type: String
    MinLength: 1
  ArtifactsBucket:
    Description: Name of environment.  Used to name the created resources.
    Type: String
  KmsKeyId:
    Description: The KMS key ID used to encrypt SSM parameters. If not provided, one will be created.
    Type: String
  AuthType:
    Description: Authorization type to apply to the API gateway endpoints
    Type: String
    Default: None
    AllowedValues:
      - None
      - Private
      - Cognito
      - LambdaRequest
      - LambdaToken
      - ApiKey
      - IAM
    MinLength: 1
  ExistingVpcId:
    Description: |
      ID of an existing VPC to deploy CDF (if using AuthType = 'Private') and/or AssetLibrary (if AssetLibraryMode = 'full') into.
      A new VPC will be created if not provided.
    Type: String
    Default: "N/A"
  ExistingCDFSecurityGroupId:
    Description: |
      ID of an existing security group to deploy CDF and/or AssetLibrary into if an existing VPC is to be used.
      A new security group will be created if not provided.
    Type: String
  ExistingPrivateSubnetIds:
    Description: |
      ID of existing private subnetIds to deploy CDF and/or AssetLibrary into if an existing VPC is to be used.
      New private subnets will be created if not provided.
    Type: String
  ExistingPublicSubnetIds:
    Description: |
      ID of existing public subnetIds to deploy CDF and/or AssetLibrary into if an existing VPC is to be used.
      New private subnets will be created if not provided.
    Type: String
  ExistingPrivateRouteTableIds:
    Description: |
      ID of existing private route tables to deploy AssetLibrary into if an existing VPC is to be used.
      New private route tables will be created if not provided.
    Type: String
  ExistingPrivateApiGatewayVPCEndpoint:
    Description: |
      ID of existing VPC endpoint to deploy CDF and/or AssetLibrary into if an existing VPC is to be used.
      New VPC endpoint will be created if not provided.
    Type: String
  IncludeAssetLibrary:
    Description: If true, the Asset Library service will be deployed.
    Type: String
    Default: "true"
    AllowedValues:
      - "true"
      - "false"
    MinLength: 1
  AssetLibraryMode:
    Description: Run in 'lite' mode which includes device registry functionality only, or 'full' mode which augments the device registry with a graph based datastore.
    Type: String
    Default: "full"
    AllowedValues:
      - "full"
      - "lite"
    MinLength: 1
  ExistingEventBusArn:
    Description: Arn of an existing eventbus to use instead of creating one.
    Type: String

Conditions:
  DeployAssetLibrary: !Equals [!Ref IncludeAssetLibrary, "true"]
  DeployAssetLibraryFull:
    !And [
      !Condition DeployAssetLibrary,
      !Equals [!Ref AssetLibraryMode, "full"],
    ]
  UsingVPCForAuth: !Equals [!Ref AuthType, "Private"]
  UseExistingVpc: !Not [!Equals [!Ref ExistingVpcId, "N/A"]]
  UsingVPC:
    !Or [
      !Condition UsingVPCForAuth,
      !Condition DeployAssetLibraryFull,
      !Condition UseExistingVpc,
    ]
  CreateKmsKey: !Equals [!Ref KmsKeyId, ""]

Resources:
  DeploymentHelper:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: ../packages/libraries/core/deployment-helper/infrastructure/cfn-deployment-helper.yaml
      Parameters:
        Environment: !Ref Environment
        ArtifactsBucket: !Ref ArtifactsBucket
        VpcId: !Ref ExistingVpcId

  EventBus:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: ./cloudformation/cfn-eventbus.yaml
      Parameters:
        Environment: !Ref Environment
        ExistingEventBusArn: !Ref ExistingEventBusArn
      TimeoutInMinutes: 20

  Networking:
    Condition: UsingVPC
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: ./cloudformation/cfn-networking.yaml
      Parameters:
        Environment: !Ref Environment
        EnableS3VpcEndpoint:
          !If [
            UseExistingVpc,
            !GetAtt DeploymentHelper.Outputs.IsS3VpcEndpointEnabled,
            "true",
          ]
        EnableDynamoDBVpcEndpoint:
          !If [
            UseExistingVpc,
            !GetAtt DeploymentHelper.Outputs.IsDynamoDBVpcEndpointEnabled,
            "true",
          ]
        EnablePrivateApiGatewayVPCEndpoint:
          !If [
            UseExistingVpc,
            !GetAtt DeploymentHelper.Outputs.IsPrivateApiGatewayVPCEndpointEnabled,
            "true",
          ]
        ExistingVpcId: !Ref ExistingVpcId
        ExistingCDFSecurityGroupId: !Ref ExistingCDFSecurityGroupId
        ExistingPrivateSubnetIds: !Ref ExistingPrivateSubnetIds
        ExistingPublicSubnetIds: !Ref ExistingPublicSubnetIds
        ExistingPrivateRouteTableIds: !Ref ExistingPrivateRouteTableIds
        ExistingPrivateApiGatewayVPCEndpoint: !Ref ExistingPrivateApiGatewayVPCEndpoint
      TimeoutInMinutes: 20

  DeploymentHelperVPC:
    Condition: UsingVPC
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: ../packages/libraries/core/deployment-helper/infrastructure/cfn-deployment-helper-vpc.yaml
      Parameters:
        Environment: !Ref Environment
        ArtifactsBucket: !Ref ArtifactsBucket
        VpcId: !GetAtt Networking.Outputs.VpcId
        CDFSecurityGroupId: !GetAtt Networking.Outputs.CDFSecurityGroupId
        PrivateSubnetIds: !GetAtt Networking.Outputs.PrivateSubnetIds

  KmsKey:
    Type: AWS::KMS::Key
    Condition: CreateKmsKey
    Properties:
      Description: CDF encryption key
      EnableKeyRotation: true
      KeyPolicy:
        Version: "2012-10-17"
        Id: key-default-1
        Statement:
          - Sid: Enable IAM User Permissions
            Effect: Allow
            Principal:
              AWS:
                - !Sub "arn:aws:iam::${AWS::AccountId}:root"
            Action:
              - kms:*
            Resource: "*"
  OpenSsl:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: ./lambdaLayers/openssl/infrastructure/cfn-openssl-layer.yml
      Parameters:
        Environment: !Ref Environment

  ApiGatewayCloudWatchRole:
    Type: "AWS::IAM::Role"
    Properties:
      AssumeRolePolicyDocument:
        Version: "2012-10-17"
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - apigateway.amazonaws.com
            Action: "sts:AssumeRole"
      Path: /
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AmazonAPIGatewayPushToCloudWatchLogs

  ApiGatewayAccountConfig:
    Type: AWS::ApiGateway::Account
    Properties:
      CloudWatchRoleArn: !GetAtt
        - ApiGatewayCloudWatchRole
        - Arn

Outputs:
  KmsKeyId:
    Value: !If [CreateKmsKey, !Ref KmsKey, !Ref KmsKeyId]
  EventBusArn:
    Value: !GetAtt EventBus.Outputs.EventBusArn
  VpcId:
    Condition: UsingVPC
    Value: !GetAtt Networking.Outputs.VpcId
  CDFSecurityGroupId:
    Condition: UsingVPC
    Value: !GetAtt Networking.Outputs.CDFSecurityGroupId
  PrivateSubnetIds:
    Condition: UsingVPC
    Value: !GetAtt Networking.Outputs.PrivateSubnetIds
  PublicSubnetIds:
    Condition: UsingVPC
    Value: !GetAtt Networking.Outputs.PublicSubnetIds
  PrivateRouteTableIds:
    Condition: UsingVPC
    Value: !GetAtt Networking.Outputs.PrivateRouteTableIds
  PrivateApiGatewayVPCEndpoint:
    Condition: UsingVPC
    Value: !GetAtt Networking.Outputs.PrivateApiGatewayVPCEndpoint
  OpenSslLambdaLayerArn:
    Value: !GetAtt OpenSsl.Outputs.LayerVersionArn
  CustomResourceLambdaArn:
    Value: !GetAtt DeploymentHelper.Outputs.CustomResourceLambdaArn
  CustomResourceVPCLambdaArn:
    Condition: UsingVPC
    Value: !GetAtt DeploymentHelperVPC.Outputs.CustomResourceVpcLambdaArn