# Anaconda comes with binaries of system packages (e.g. `openssl`, `curl`).
# Creating shims for those binaries will prevent pyenv users to run those
# commands normally when not using Anaconda.
#
# This is a limited edition of https://github.com/yyuu/pyenv-which-ext
# and it will looks for original `PATH` if there is Anaconda/Miniconda
# installed and the command name is blacklisted.

conda_exists() {
  shopt -s nullglob
  local condas=($(echo "${PYENV_ROOT}/versions/"*"/bin/conda" "${PYENV_ROOT}/versions/"*"/envs/"*"/bin/conda"))
  shopt -u nullglob
  [ -n "${condas}" ]
}

conda_shims() {
  cat <<EOS
assistant
curl
curl-config
designer
fc-cache
fc-cat
fc-list
fc-match
fc-pattern
fc-query
fc-scan
fc-validate
freetype-config
lconvert
libpng-config
linguist
lrelease
lupdate
moc
openssl
pixeltool
qcollectiongenerator
qdbus
qdbuscpp2xml
qdbusviewer
qdbusxml2cpp
qhelpconverter
qhelpgenerator
qmake
qmlplugindump
qmlviewer
qtconfig
rcc
redis-benchmark
redis-check-aof
redis-check-dump
redis-cli
redis-server
sqlite3
uic
xml2-config
xmlpatterns
xmlpatternsvalidator
xslt-config
xsltproc
EOS
}

expand_path() {
  if [ ! -d "$1" ]; then
    return 1
  fi

  local cwd="$(pwd)"
  cd "$1"
  pwd
  cd "$cwd"
}

remove_from_path() {
  local path_to_remove="$(expand_path "$1")"
  local result=""

  if [ -z "$path_to_remove" ]; then
    echo "${PATH}"
    return
  fi

  local paths
  IFS=: paths=($PATH)

  for path in "${paths[@]}"; do
    path="$(expand_path "$path" || true)"
    if [ -n "$path" ] && [ "$path" != "$path_to_remove" ]; then
      result="${result}${path}:"
    fi
  done

  echo "${result%:}"
}

lookup_from_path() {
  local command_to_lookup="$1"
  local original_path="${PATH}"
  PATH="$(remove_from_path "${PYENV_ROOT}/shims")"
  local result="$(command -v "$command_to_lookup" || true)"
  PATH="${original_path}"
  echo "$result"
}

if [ -n "$PYENV_COMMAND" ] && [ ! -x "$PYENV_COMMAND_PATH" ]; then
  if conda_exists && conda_shims | grep -q -x "$PYENV_COMMAND"; then
    PYENV_COMMAND_PATH="$(lookup_from_path "$PYENV_COMMAND" || true)"
  fi
fi