---
AWSTemplateFormatVersion: '2010-09-09'
Description: Handel-created Neptune instance

Resources:
  ClusterParameterGroup:
    Type: AWS::Neptune::DBClusterParameterGroup
    Properties:
      Name: {{dbName}}
      Description: {{description}}
      Family: {{parameterGroupFamily}}
      Parameters:
      {{#if clusterParameters}}
        {{#each clusterParameters}}
        {{@key}}: '{{this}}'
        {{/each}}
      {{else}}
        # If no params specified, use a single param set to the default so CF won't throw an error
        neptune_enable_audit_log: 0
      {{/if}}
      Tags:
      {{#if tags}}
      {{#each tags}}
      - Key: {{@key}}
        Value: {{this}}
      {{/each}}
      {{/if}}
      - Key: Name
        Value: {{dbName}}

  InstanceParameterGroup:
    Type: AWS::Neptune::DBParameterGroup
    Properties:
      Name: {{dbName}}
      Description: {{description}}
      Family: {{parameterGroupFamily}}
      Parameters:
      {{#if instanceParameters}}
        {{#each instanceParameters}}
        {{@key}}: '{{this}}'
        {{/each}}
      {{else}}
        # If no params specified, use a single param set to the default so CF won't throw an error
        neptune_query_timeout: 120000
      {{/if}}
      Tags:
      {{#if tags}}
      {{#each tags}}
      - Key: {{@key}}
        Value: {{this}}
      {{/each}}
      {{/if}}
      - Key: Name
        Value: {{dbName}}

  Cluster:
    Type: AWS::Neptune::DBCluster
    Properties:
      DBClusterIdentifier: {{dbName}}
      DBClusterParameterGroupName: !Ref ClusterParameterGroup
      DBSubnetGroupName:  {{dbSubnetGroup}}
      IamAuthEnabled: {{iamAuthEnabled}}
      Port: {{port}}
      Tags:
      {{#if tags}}
      {{#each tags}}
      - Key: {{@key}}
        Value: {{this}}
      {{/each}}
      {{/if}}
      - Key: Name
        Value: {{dbName}}
      VpcSecurityGroupIds:
      - {{dbSecurityGroupId}}

  {{#each instances}}
  DatabaseInstance{{@index}}:
    Type: AWS::Neptune::DBInstance
    Properties:
      AllowMajorVersionUpgrade: true
      AutoMinorVersionUpgrade: true
      DBClusterIdentifier: !Ref Cluster
      DBInstanceClass: {{instanceType}}
      DBInstanceIdentifier: {{../dbName}}-{{@index}}
      DBParameterGroupName: !Ref InstanceParameterGroup
      DBSubnetGroupName: {{../dbSubnetGroup}}
      Tags:
      {{#if ../tags}}
      {{#each ../tags}}
      - Key: {{@key}}
        Value: {{this}}
      {{/each}}
      {{/if}}
      - Key: Name
        Value: {{../dbName}}

  {{/each}}

Outputs:
  ClusterEndpoint:
    Description: The connection endpoint of the Neptune cluster
    Value: !GetAtt Cluster.Endpoint
  ClusterPort:
    Description: The port of the Neptune cluster
    Value: !GetAtt Cluster.Port
  ClusterReadEndpoint:
    Description: The read endpoint for the Neptune cluster
    Value: !GetAtt Cluster.ReadEndpoint
  ClusterId:
    Description: The resource ID of the cluster
    Value: !GetAtt Cluster.ClusterResourceId