#!/bin/bash

# Outputs the generated helm configurations after templating.

yaml_output=/tmp/op-hc-yaml-output.txt
error_output=/tmp/op-hc-error-output.txt
section_output=/tmp/op-hc-section-output.yml
vimrc=/tmp/op-hc-vim-rc

rm $yaml_output $error_output $section_output $vimrc &>/dev/null

helm template --debug "$@" . 1> $yaml_output 2> $error_output

if [ $? -gt 0 ]; then
  section=`cat $error_output | grep 'Error: YAML parse error on' | cut -d: -f2 | cut -d' ' -f6-`

  if [ -n "$section" ]; then
    cat $yaml_output | sed -e "0,/\# Source: ${section//\//\\/}/d" | tail -n+2 | sed -e '/---/,$d' > $section_output

    line=`cat $error_output | grep line | head -n1 | perl -nle 'm/line (\d+)/; print $1'`

    if [ -n "$line" ]; then
      echo "autocmd VimEnter * echo '`cat $error_output | grep line | head -n1`'" > $vimrc
      vim +$line -u $vimrc $section_output
    else
      echo
      echo "Template error: "
      echo
      echo ---
      cat $section_output
      cat $error_output
    fi
  else
    echo
    echo "Template error: "
    echo
    echo ---
    cat $yaml_output
    cat $error_output
  fi
else
  cat $yaml_output

  echo
  echo "Syntax ok"
fi