#!/bin/dash

# Test startup, create a temporary directory and cd into it with files.
tmp_dir=$(mktemp --directory --quiet --tmpdir=./)
if [ "$(find tigger-* | wc -l)" -le 0 ]; then
  printf "error: no tigger commands found, cannot run tests\n" >&2
  exit 1
fi
cp tigger-* "$tmp_dir"/
cd "$tmp_dir" || exit

# Functions to test if the return value was 0 or non-zero.
assert_good_exec () {
  printf "%s: " "$1"
  if $1; then
    return
  fi
  printf "test failed, previous command expected zero output code\n" >&2
  rm -rf ../"$tmp_dir"
  exit 1
}
# Functions to test if the return value was 0 or non-zero.
assert_bad_exec () {
  printf "%s: " "$1"
  if ! $1; then
    return
  fi
  printf "test failed, previous command expected non-zero output code\n" >&2
  rm -rf ../"$tmp_dir"
  exit 1
}
printf "starting tests: output and order will be printed\n\n"
# End of test startup

# The purpose of this test is to ensure that removing the expected .tigger
# folder does reset the state of tigger. In addition, there should be NO extra
# files at the end of this operation, even if it fails. We are only allowed to
# edit/create .tigger and what is inside .tigger!

num_files_before=$(find ./ | wc -l)
assert_good_exec "./tigger-init"
num_files_after=$(find ./ | wc -l)
assert_bad_exec "./tigger-init" # should make no more files
if [ "$(find ./ | wc -l)" -ne "$num_files_after" ]; then
  printf "the amount of files should be equal to before when tigger-init was called previously!\n" >&2
  exit 1
fi
rm -rf ./.tigger
if [ "$(find ./ | wc -l)" -ne "$num_files_before" ]; then
  printf "there should be the same amount as files as before any commands were run!\n" >&2
  exit 1
fi
assert_good_exec "./tigger-init"

# Test teardown/cleanup
printf "\ntest completed successfully\n"
rm -rf ../"$tmp_dir"
exit 0