#!/usr/bin/env bash

# ------------- Import some defaults for the shell

# Source shell defaults
# $0 is the currently running program (this file)
this_file_directory=$(dirname $0)
relative_path_to_defaults=$this_file_directory/../shell_defaults

# if a file exists there, source it. otherwise complain
if test -f $relative_path_to_defaults; then
  # source and '.' are the same program
  source $relative_path_to_defaults
else
  echo -e "\033[31m\nFAILED TO SOURCE TEST RUNNING OPTIONS.\033[39m"
  echo -e "\033[31mTried $relative_path_to_defaults\033[39m"
  exit 1
fi


# ------------- Start Main
set +o xtrace
echo -e "$blue_text""This test ensures no changes result from running docusaurs build""$default_text"
set -o xtrace

# Generate static files
cd $this_file_directory  #lets us run this without relative path dep
cd ../../docusaurus
yarn install
yarn run build


# +o counterintuitively unsets the option
set +o errexit # exit 1 expected below in normal operation
# this line is the test
git diff-index --quiet HEAD --
clean=$? # $? is the return status of the last command
set -o errexit


# ------------- User communication on testing results

set +o xtrace

if test $clean -eq 0; then
  echo -e "$blue_text""\n\n\nDocusaurs has no changes to commit!""$default_text"
  echo -e "$blue_text""Generated documentation should be as local testing""$default_text"

else
  echo -e "$red_text""\n\n\ndocusaurs build resulted in changes from this commit.""$default_text"
  echo -e "$red_text""  Run docusaurus build locally (yarn run build), commit, and try again""$default_text"
fi