#!/usr/bin/env bash

function template::path() {
  local dir=""
  local file=""

  if [[ $# -eq 1 ]]; then
    file="$1"
  else
    dir="$1"
    file="$2"
  fi

  if [[ -n "$dir" ]]; then
    echo "$(ctx::templates)/$dir/$file.template"
  else
    echo "$(ctx::templates)/$file.template"
  fi
}

function template::render() {
  local template="$1"
  local target="$2"
  shift 2

  require_file "$template" || {
    log::fs_error "Template not found: $template"
    return 1
  }

  mkdir -p "$(dirname "$target")"

  # Build env assignment list
  local env_vars=()
  for var in "$@"; do
    env_vars+=("$var")
  done

  if ! env "${env_vars[@]}" envsubst < "$template" > "$target"; then
    log::fs_error "Failed rendering template: $template"
    return 1
  fi
}

#function template::render() {
#  local template="$1"
#  local target="$2"
#  shift 2
#
#  require_file "$template" || {
#    log::fs_error "Template not found: $template"
#    return 1
#  }
#
#  mkdir -p "$(dirname "$target")"
#
#  for var in "$@"; do
#    export "$var"
#  done
#
#  if ! envsubst < "$template" > "$target"; then
#    log::fs_error "Failed rendering template: $template"
#    return 1
#  fi
#}