#!/usr/bin/env bash
# author: deadc0de6 (https://github.com/deadc0de6)
# Copyright (c) 2020, deadc0de6
#
# test chmod on install
# with files and directories
# with different link
#

# exit on first error
set -e

# all this crap to get current path
rl="readlink -f"
if ! ${rl} "${0}" >/dev/null 2>&1; then
  rl="realpath"

  if ! hash ${rl}; then
    echo "\"${rl}\" not found !" && exit 1
  fi
fi
cur=$(dirname "$(${rl} "${0}")")

#hash dotdrop >/dev/null 2>&1
#[ "$?" != "0" ] && echo "install dotdrop to run tests" && exit 1

#echo "called with ${1}"

# dotdrop path can be pass as argument
ddpath="${cur}/../"
[ "${1}" != "" ] && ddpath="${1}"
[ ! -d "${ddpath}" ] && echo "ddpath \"${ddpath}\" is not a directory" && exit 1

export PYTHONPATH="${ddpath}:${PYTHONPATH}"
bin="python3 -m dotdrop.dotdrop"
if hash coverage 2>/dev/null; then
  bin="coverage run -a --source=dotdrop -m dotdrop.dotdrop"
fi

echo "dotdrop path: ${ddpath}"
echo "pythonpath: ${PYTHONPATH}"

# get the helpers
# shellcheck source=tests-ng/helpers
source "${cur}"/helpers

echo -e "$(tput setaf 6)==> RUNNING $(basename "${BASH_SOURCE[0]}") <==$(tput sgr0)"

################################################################
# this is the test
################################################################

# $1 path
# $2 rights
has_rights()
{
  echo "testing ${1} is ${2}"
  [ ! -e "$1" ] && echo "$(basename "$1") does not exist" && exit 1
  local mode
  mode=$(stat -L -c '%a' "$1")
  [ "${mode}" != "$2" ] && echo "bad mode for $(basename "$1") (${mode} VS expected ${2})" && exit 1
  true
}

get_file_mode()
{
  u=$(umask)
  # shellcheck disable=2001
  u=$(echo "${u}" | sed 's/^0*//')
  v=$((666 - u))
  echo "${v}"
}

# the dotfile source
tmps=$(mktemp -d --suffix='-dotdrop-tests' || mktemp -d)
mkdir -p "${tmps}"/dotfiles
# the dotfile destination
tmpd=$(mktemp -d --suffix='-dotdrop-tests' || mktemp -d)
#echo "dotfile destination: ${tmpd}"

clear_on_exit "${tmps}"
clear_on_exit "${tmpd}"

# create the config file
cfg="${tmps}/config.yaml"

echo 'f777' > "${tmps}"/dotfiles/f777
chmod 700 "${tmps}"/dotfiles/f777
echo 'link' > "${tmps}"/dotfiles/link
chmod 777 "${tmps}"/dotfiles/link
mkdir -p "${tmps}"/dotfiles/dir
echo "f1" > "${tmps}"/dotfiles/dir/f1

echo "exists" > "${tmps}"/dotfiles/exists
chmod 644 "${tmps}"/dotfiles/exists
echo "exists" > "${tmpd}"/exists
chmod 644 "${tmpd}"/exists

echo "existslink" > "${tmps}"/dotfiles/existslink
chmod 777 "${tmps}"/dotfiles/existslink
chmod 644 "${tmpd}"/exists

mkdir -p "${tmps}"/dotfiles/direxists
echo "f1" > "${tmps}"/dotfiles/direxists/f1
mkdir -p "${tmpd}"/direxists
echo "f1" > "${tmpd}"/direxists/f1
chmod 644 "${tmpd}"/direxists/f1
chmod 744 "${tmpd}"/direxists

mkdir -p "${tmps}"/dotfiles/linkchildren
echo "f1" > "${tmps}"/dotfiles/linkchildren/f1
mkdir -p "${tmps}"/dotfiles/linkchildren/d1
echo "f2" > "${tmps}"/dotfiles/linkchildren/d1/f2

echo '{{@@ profile @@}}' > "${tmps}"/dotfiles/symlinktemplate

mkdir -p "${tmps}"/dotfiles/symlinktemplatedir
echo "{{@@ profile @@}}" > "${tmps}"/dotfiles/symlinktemplatedir/t

echo 'nomode' > "${tmps}"/dotfiles/nomode

cat > "${cfg}" << _EOF
config:
  backup: true
  create: true
  dotpath: dotfiles
  force_chmod: true
dotfiles:
  f_f777:
    src: f777
    dst: ${tmpd}/f777
    chmod: 777
  f_link:
    src: link
    dst: ${tmpd}/link
    chmod: 777
    link: link
  d_dir:
    src: dir
    dst: ${tmpd}/dir
    chmod: 777
  f_exists:
    src: exists
    dst: ${tmpd}/exists
    chmod: 777
  f_existslink:
    src: existslink
    dst: ${tmpd}/existslink
    chmod: 777
    link: link
  d_direxists:
    src: direxists
    dst: ${tmpd}/direxists
    chmod: 777
  d_linkchildren:
    src: linkchildren
    dst: ${tmpd}/linkchildren
    chmod: 777
    link: link_children
  f_symlinktemplate:
    src: symlinktemplate
    dst: ${tmpd}/symlinktemplate
    chmod: 777
    link: link
  d_symlinktemplatedir:
    src: symlinktemplatedir
    dst: ${tmpd}/symlinktemplatedir
    chmod: 777
    link: link
  f_nomode:
    src: nomode
    dst: ${tmpd}/nomode
profiles:
  p1:
    dotfiles:
    - f_f777
    - f_link
    - d_dir
    - f_exists
    - f_existslink
    - d_direxists
    - d_linkchildren
    - f_symlinktemplate
    - d_symlinktemplatedir
    - f_nomode
  p2:
    dotfiles:
    - f_exists
    - d_linkchildren
    - f_symlinktemplate
    - f_nomode
_EOF
#cat ${cfg}

# install
echo "first install round"
cd "${ddpath}" | ${bin} install -c "${cfg}" -f -p p1 -V
echo "first install round"

has_rights "${tmpd}/f777" "777"
has_rights "${tmpd}/link" "777"
has_rights "${tmpd}/dir" "777"
has_rights "${tmpd}/exists" "777"
has_rights "${tmpd}/existslink" "777"
has_rights "${tmpd}/direxists" "777"
has_rights "${tmpd}/direxists/f1" "644"
has_rights "${tmpd}/linkchildren" "777"
has_rights "${tmpd}/linkchildren/f1" "644"
has_rights "${tmpd}/linkchildren/d1" "755"
has_rights "${tmpd}/linkchildren/d1/f2" "644"
has_rights "${tmpd}/symlinktemplate" "777"
m=$(get_file_mode)
has_rights "${tmpd}/nomode" "${m}"

grep 'p1' "${tmpd}"/symlinktemplate
grep 'p1' "${tmpd}"/symlinktemplatedir/t

## second round
echo "exists" > "${tmps}"/dotfiles/exists
chmod 600 "${tmps}"/dotfiles/exists
echo "exists" > "${tmpd}"/exists
chmod 600 "${tmpd}"/exists

chmod 700 "${tmpd}"/linkchildren

chmod 600 "${tmpd}"/symlinktemplate

echo "second install round"
cd "${ddpath}" | ${bin} install -c "${cfg}" -p p2 -f -V
echo "second install round"

has_rights "${tmpd}/exists" "777"
has_rights "${tmpd}/linkchildren/f1" "644"
has_rights "${tmpd}/linkchildren/d1" "755"
has_rights "${tmpd}/linkchildren/d1/f2" "644"
has_rights "${tmpd}/symlinktemplate" "777"
m=$(get_file_mode)
has_rights "${tmpd}/nomode" "${m}"

## no user confirmation expected
## same mode
echo "same mode"
echo "nomode" > "${tmps}"/dotfiles/nomode
chmod 600 "${tmps}"/dotfiles/nomode
echo "nomode" > "${tmpd}"/nomode
chmod 600 "${tmpd}"/nomode
cd "${ddpath}" | ${bin} install -c "${cfg}" -f -p p2 -V f_nomode
echo "same mode"
has_rights "${tmpd}/nomode" "600"

## no user confirmation with force
## different mode
echo "different mode"
echo "nomode" > "${tmps}"/dotfiles/nomode
chmod 600 "${tmps}"/dotfiles/nomode
echo "nomode" > "${tmpd}"/nomode
chmod 700 "${tmpd}"/nomode
cd "${ddpath}" | ${bin} install -c "${cfg}" -f -p p2 -V f_nomode
echo "different mode (1)"
has_rights "${tmpd}/nomode" "600"

## user confirmation expected
## different mode
echo "different mode"
echo "nomode" > "${tmps}"/dotfiles/nomode
chmod 600 "${tmps}"/dotfiles/nomode
echo "nomode" > "${tmpd}"/nomode
chmod 700 "${tmpd}"/nomode
(
  d "${ddpath}"
  printf 'y\ny\n' | ${bin} install -f -c "${cfg}" -p p2 -V f_nomode
  exit $?
)
echo "different mode (2)"
has_rights "${tmpd}/nomode" "600"

echo "OK"
exit 0