variable "eks_cluster_name" {
  type    = string
  default = "PLEASE_REPLACE_WITH_CLUSTER_NAME"
}

variable "CONNECTOR_ID" {
  type    = string
  description = "Apono Connector ID"
}

variable "APONO_TOKEN" {
  type    = string
  description = "Apono authoriozatrion token"
  sensitive = true
}

variable "APONO_WEBSOCKET_URL" {
  type    = string
  description = "Apono websocket URL"
}

variable "aws_region" {
  type    = string
  default = "us-east-1"
}

variable "service_account_name" {
  type    = string
  default = "apono"
}

variable "namespace" {
  type    = string
  default = "apono"
}

provider "aws" {
  alias  = "apono"
  region = var.aws_region
}

data "aws_eks_cluster" "cluster" {
  name     = var.eks_cluster_name
}

data "aws_eks_cluster_auth" "eks_cluster_auth" {
  name     = var.eks_cluster_name
}

data "aws_caller_identity" "aws_account" {
}

locals {
  aws_account_id = data.aws_caller_identity.aws_account.account_id
  oidc_provider = replace(data.aws_eks_cluster.cluster.identity[0].oidc[0].issuer, "https://", "")
  config_path = "~/.kube/config"
  config_context = "my-context" 
}

provider "kubernetes" {
  config_path = local.config_path
  config_context = local.config_context
}

provider "helm" {
  kubernetes {
    config_path = local.config_path
    config_context = local.config_context
  }
}

data "aws_eks_cluster" "eks_cluster" {
  name = var.eks_cluster_name
}

data "tls_certificate" "tls_cert" {
  url = data.aws_eks_cluster.eks_cluster.identity[0].oidc[0].issuer
}

resource "aws_iam_openid_connect_provider" "eks-oidc-provider" {
  client_id_list  = ["sts.amazonaws.com"]
  thumbprint_list = [data.tls_certificate.tls_cert.certificates[0].sha1_fingerprint]
  url             = data.aws_eks_cluster.eks_cluster.identity[0].oidc[0].issuer
}

// IAM role and access policy for apono tagged secrets
resource "aws_iam_role" "apono-connector" {
  name     = "${var.service_account_name}-${var.CONNECTOR_ID}"

  assume_role_policy = jsonencode({
    "Version" : "2012-10-17",
    "Statement" : [
      {
        "Effect" : "Allow",
        "Principal" : { "Federated" : "arn:aws:iam::${local.aws_account_id}:oidc-provider/${local.oidc_provider}" },
        "Action" : "sts:AssumeRoleWithWebIdentity",
        "Condition" : {
          "StringEquals" : { "${local.oidc_provider}:sub" : "system:serviceaccount:${var.namespace}:${var.service_account_name}" }
        }
      }
    ]
  })
  
  inline_policy {
    name = "apono-tagged-keys-access-policy"

    policy = jsonencode({
      Version = "2012-10-17"
      Statement = [
        {
          Effect = "Allow"
          Action = [ "kms:Sign" ]
          Resource = "*"
          Condition = { "StringEquals": {"aws:ResourceTag/apono-connector-read": "true"} }
        },
      ]
    })
  }
  
  inline_policy {
    name = "apono-tagged-secrets-access-policy"

    policy = jsonencode({
      Version = "2012-10-17"
      Statement = [
        {
          Effect = "Allow"
          Action = [ "secretsmanager:GetSecretValue", "secretsmanager:DescribeSecret"]
          Resource = "arn:aws:secretsmanager:*:${local.aws_account_id}:secret:*"
          Condition = { "StringEquals": {"aws:ResourceTag/apono-connector-read": "true"} }
        },
      ]
    })
  }

  // for IAM Managment
  inline_policy {
    name = "iam-access-policy"
    policy = jsonencode({
      Version = "2012-10-17"
      Statement = [
        {
            Effect = "Allow"
            Action = [
                "iam:ListPolicies",
                "iam:CreateInstanceProfile",
                "iam:ListGroups",
                "iam:ListInstanceProfiles"
            ],
            Resource = "*"
        },
        {
            Effect = "Allow"
            Action = [
                "iam:CreateInstanceProfile",
                "iam:GetRole",
                "iam:UpdateAssumeRolePolicy",
                "iam:ListRoleTags",
                "iam:TagRole",