variable environment {}
variable service_name {}
variable aws_region {}
variable elasticsearch_domain {}

provider "aws" {
  region = var.aws_region
}

# Terraform backends cannot contain interpolations
terraform {
  backend "s3" {
    bucket         = "orcd-terraform-state"
    key            = "qa/ows-analytics/terraform.tfstate"
    region         = "us-east-1"
    encrypt        = "true"
    dynamodb_table = "terraform-qa-ows-analytics"
  }
}

resource "aws_elasticache_replication_group" "elasticache_instance" {
  replication_group_id          = "${var.environment}-${var.service_name}"
  replication_group_description = "${var.environment}-${var.service_name}"
  node_type                     = "cache.t2.small"
  number_cache_clusters         = 1
  port                          = 6379
  availability_zones            = ["us-east-1b"]
  auto_minor_version_upgrade    = false
  subnet_group_name             = "prod-vpc-orchard-subnet"
  apply_immediately             = "true"
}

module "analytics_metadata_dynamodb_table" {
  source = "git@github.com:theorchard/terraform-dynamodb.git//?ref=1.1.4"

  env               = "${var.environment}"
  table_name        = "analytics_metadata"
  range_key_enabled = true
  read_capacity     = "10"
  hash_key          = "first_id"
  hash_type         = "S"
  range_key         = "second_id"
  range_type        = "S"
}

module "ows_legacy_analytics_owsrequest" {
  source = "git@github.com:theorchard/terraform-owsrequest.git//?ref=1.0.0"

  environment_name = "${var.environment}"
  service_name     = "ows-legacy-analytics"
}

module "ows_analytics_owsrequest" {
  source = "git@github.com:theorchard/terraform-owsrequest.git//?ref=1.0.0"

  environment_name = "${var.environment}"
  service_name     = "${var.service_name}"
}

data "aws_iam_policy_document" "secrets_manager_policy" {
  statement { 
    effect  = "Allow"
    actions = [
      "secretsmanager:GetSecretValue"
    ]

    resources = [
        "arn:aws:secretsmanager:*:*:secret:qa/python-orchard-features/*",
        "arn:aws:secretsmanager:*:*:secret:qa/python-orchard-features/"
    ]
  }
}

resource "aws_iam_policy" "secrets_manager_policy" {
  name   = "${var.environment}-ows-analytics-secrets-manager-policy"
  policy = data.aws_iam_policy_document.secrets_manager_policy.json
}

# Old ows-analytics, now known as ows-legacy-analytics
module "ows_legacy_analytics_fargate_environment" {
  source = "git@github.com:theorchard/terraform-fargate.git//?ref=1.5.3"

  environment                              = "${var.environment}"
  service_name                             = "ows-legacy-analytics"
  aws_region                               = "${var.aws_region}"
  commit_sha                               = "latest"
  container_port                           = "8080"
  task_type                                = "web_service"
  desired_task_count                       = 2
  task_cpu                                 = 1024
  task_memory                              = 2048
  maximum_capacity                         = 4
  minimum_capacity                         = 2
  scale_up_adjustment                      = 1
  scale_down_adjustment                    = -1
  route53_zone_id                          = "Z2RSKZ9M7TJ9Z"
  load_balancer_access_logs_s3_bucket_name = "orch-elb-logs"
  vpc_id                                   = "vpc-7f0e841a"
  datadog_function_destination_arn         = "arn:aws:lambda:us-east-1:437795906767:function:DatadogLambdaFunction"
  https_listener_certificate_id            = "a76e4883-28aa-4062-a4cc-c06b8012ae28"
  http_listener_enabled                    = false
  health_check_grace_period_seconds        = 300

  iam_managed_policy_attachments = [
    "arn:aws:iam::437795906767:policy/Dynamo-qa-ows-analytics-owsrequest",
    "arn:aws:iam::437795906767:policy/Dynamo-qa-ows-legacy-analytics-owsrequest",
    "arn:aws:iam::437795906767:policy/Dynamo-streams_vendor_totals-RW",
    "arn:aws:iam::437795906767:policy/Dynamo-streams_track_totals-RW",
    "arn:aws:iam::437795906767:policy/Dynamo-stream-wildcard-RW",
    "arn:aws:iam::437795906767:policy/dev-aggregate-analytics",
    "arn:aws:iam::437795906767:policy/S3-nickelback_qa-ows-analytics-RO",
    "arn:aws:iam::437795906767:policy/Dynamo-ows-analytics-qa-active-table-RO",
  ]

  fargate_service_subnets = [
    "subnet-067a6b45b079d7296",
    "subnet-043d235081c966332",
  ]

  load_balancer_subnets = [
    "subnet-067a6b45b079d7296",
    "subnet-043d235081c966332",
  ]

  environment_variables = [
    {
      Environment = "${var.environment}"
    },
    {
      LOGGER_DSN = "https://${var.environment}-fluentd-applications.theorchard.io:8888/application"
    },
    {
      DATADOG_ENV = "${var.environment}-ows-legacy-analytics"
    },
    {
      DD_LOGS_INJECTION = "true"
    },
    {
      SNOWFLAKE_INSECURE_MODE = "True"
    }
  ]
}

# New ows-analytics (FKA bff-mobile)
module "ows_analytics_fargate_environment" {
  source = "git@github.com:theorchard/terraform-fargate.git//?ref=1.7.11"

  environment                              = var.environment
  service_name                             = var.service_name
  aws_region                               = var.aws_region
  commit_sha                               = "latest"
  container_port                           = "8080"
  task_type                                = "web_service"
  desired_task_count                       = 2
  task_cpu                                 = 1024
  task_memory                              = 2048
  maximum_capacity                         = 4
  minimum_capacity                         = 2
  scale_up_adjustment                      = 1
  scale_down_adjustment                    = -1
  route53_zone_id                          = "Z2RSKZ9M7TJ9Z"
  load_balancer_access_logs_s3_bucket_name = "orch-elb-logs"
  vpc_id                                   = "vpc-7f0e841a"
  datadog_function_destination_arn         = "arn:aws:lambda:us-east-1:437795906767:function:DatadogLambdaFunction"
  https_listener_certificate_id            = "a76e4883-28aa-4062-a4cc-c06b8012ae28"
  http_listener_enabled                    = false
  health_check_grace_period_seconds        = 120
  health_check_healthy_threshold           = 2
  scaling_cooldown_period                  = 300

  qa_https_listener_allow_cidr_blocks = [
    "192.168.31.0/24",
    "192.168.32.0/24",
    "192.168.33.0/24",
    "192.168.40.0/22",
    "10.30.0.0/22",
    "10.40.0.0/22",
    "10.110.0.0/24",
    "10.110.1.0/24",
  ]

  iam_managed_policy_attachments = [
    "arn:aws:iam::437795906767:policy/Dynamo-qa-mobile_metadata-Full",
    "arn:aws:iam::437795906767:policy/Dynamo-qa-bff-mobile-owsrequest",
    "arn:aws:iam::437795906767:policy/Dynamo-qa-mobile_metadata-RW",
    # May use bff-mobile or ows-analytics
    "arn:aws:iam::437795906767:policy/Dynamo-qa-ows-analytics-owsrequest",
    "arn:aws:iam::437795906767:policy/SecretsManager-qa-ows-analytics-policy",
    "arn:aws:iam::437795906767:policy/Dynamo-qa_analytics_metadata-RO",
    aws_iam_policy.secrets_manager_policy.arn,
  ]

  fargate_service_subnets = [
    "subnet-067a6b45b079d7296",
    "subnet-043d235081c966332",
  ]

  load_balancer_subnets = [
    "subnet-067a6b45b079d7296",
    "subnet-043d235081c966332",
  ]

  environment_variables = [
    {
      Environment = "${var.environment}"
    },
    {
      ANALYTICS_METADATA_TABLE = "qa_analytics_metadata"
    },
    {
      AWS_DEFAULT_REGION = "us-east-1"
    },
    {
      DATADOG_ENV = "${var.environment}-${var.service_name}"
    },
    {
      DD_LOGS_INJECTION = "true"
    },
    {
      DYNAMO_TABLE = "qa-mobile_metadata"
    },
    {
      LOGGER_DSN = "https://${var.environment}-fluentd-applications.theorchard.io:8888/application"
    },
    {
      SLOW_DYNAMO_TIME = "0.1"
    }
  ]
}

# Create QA ows-analytics integration tests user
resource "aws_iam_user" "integration_tests_user" {
  name = "${var.environment}-${var.service_name}-integration-tests"
}

# Allow integration tests user to fetch secrets
resource "aws_iam_user_policy_attachment" "integration_tests_secrets_manager_policy_attachment" {
  user       = aws_iam_user.integration_tests_user.name
  policy_arn = "arn:aws:iam::437795906767:policy/SecretsManager-qa-ows-analytics-policy"
}

module "elasticache" {
  source = "git@github.com:theorchard/terraform-elasticache.git//?ref=1.0.6"

  environment = "${var.environment}"
  # An ows-analytics elasticache cluster already exists, so append -cluster
  service_name            = "ows-analytics-cluster"
  cache_engine            = "redis"
  cache_subnet_group_name = "prod-private-vpc-subnet"
  vpc_id                  = "vpc-7f0e841a"
}

module "fargate_ows_legacy_analytics_service_dashboard" {
  source           = "git@github.com:theorchard/terraform-datadog.git//modules/service?ref=1.1.0"
  environment      = "${var.environment}"
  environment_type = "fargate"
  service_name     = "ows-legacy-analytics"
}

module "fargate_service_dashboard" {
  source           = "git@github.com:theorchard/terraform-datadog.git//modules/service?ref=1.1.0"
  environment      = "${var.environment}"
  environment_type = "fargate"
  service_name     = "${var.service_name}"
}

# Elasticsearch instance
module "elasticsearch_ows_analytics" {
  source = "git@github.com:theorchard/terraform-elasticsearch.git//?ref=1.2.0"

  env                        = var.environment
  aws_es_domain_name         = var.service_name
  aws_es_version             = 7.4
  dedicated_master_type      = "c5.large.elasticsearch"
  dedicated_master_enabled   = true
  dedicated_master_count     = 3
  aws_es_instance_type       = "r5.2xlarge.elasticsearch"
  aws_es_instance_count      = 3
  aws_es_disk_size           = 60
  vpc_subnet_ids             = ["subnet-5366ef24"]
  backup_s3_bucket_name      = "qa-orcdbucket"
  schedule_exp               = "cron(0 22 * * ? *)"
  vpc_security_group_ids     = ["sg-21f1ed44"]
  aws_route53_params_zone_id = "Z2RSKZ9M7TJ9Z"
  zone_awareness_enabled     = false
}

# Create IAM user for elasticsearch cache warm jenkins job."
resource "aws_iam_user" "cache_prewarm_user" {
  name = "qa-${var.service_name}-cache-prewarm-user"
  tags = {
    terraformed = true
  }
}

# Attach iam policies to cache-prewarm iam user.
resource "aws_iam_user_policy_attachment" "iam-user-policy-attachment" {
  user       = aws_iam_user.cache_prewarm_user.name
  count      = length(var.iam_policy_arn)
  policy_arn = var.iam_policy_arn[count.index]
}