#!/bin/bash

set -euo pipefail

validate_terraform_directory() {
  local dir="$1"
  echo "Running \`terraform validate\` in $dir"
  pushd "$dir"
  terraform init -upgrade
  terraform validate
  popd
}

main() {
  # Get the directory of the script
  local script_dir=$(dirname "$(readlink -f "$0")")

  # Code assumes that registry directory will always be in same position
  # relative to the main script directory
  local registry_dir="$script_dir/../registry"

  # Get all module subdirectories in the registry directory. Code assumes that
  # Terraform module directories won't begin to appear until three levels deep into
  # the registry (e.g., registry/coder/modules/coder-login, which will then
  # have a main.tf file inside it)
  local subdirs=$(find "$registry_dir" -mindepth 3 -path "*/modules/*" -type d | sort)

  for dir in $subdirs; do
    # Skip over any directories that obviously don't have the necessary
    # files
    if test -f "$dir/main.tf"; then
      validate_terraform_directory "$dir"
    fi
  done
}

main