/**
* # lambda-layers
*
* Download python packages and create lambda layer
*
* ## Notes
* Packages need to be placed under a python/ subdirectory.
* See https://docs.aws.amazon.com/lambda/latest/dg/packaging-layers.html
 */

# build python package zip file
module "lambda_archive" {
  source = "../modules/compute/LambdaZipBuilder"

  pip_packages         = "pandas numpy pytz openpyxl"
  upload_archive_to_s3 = true
  s3_bucket_name       = module.s3.bucket_name
  pip_path             = "/my/work/xpk-git/venv314/bin/pip3"
}

# create lambda layer
resource "aws_lambda_layer_version" "pandas" {
  description         = "Python packages pandas numpy pytz openpyxl"
  s3_bucket           = module.s3.bucket_name
  s3_key              = module.lambda_archive.s3_object_key
  source_code_hash    = module.lambda_archive.s3_object_hash
  layer_name          = "py_packages"
  compatible_runtimes = ["python3.13"]
}

# s3 bucket required for uploading python package zip
module "s3" {
  source                  = "../modules/storage/s3_bucket_2023"
  bucket_name             = "lab-lambdalayer-${random_uuid.this.result}"
  bucket_force_destroy    = true
  enable_bucket_logging   = false
  enable_bucket_lifecycle = false
  enable_versioning       = false
  enable_encryption       = true
}

resource "random_uuid" "this" {}