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#compdef pw
# Copyright 2023 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

_complete_pw_subcommands() {
  local -a _1st_arguments=("${(@f)$(pw --no-banner --tab-complete-format=zsh --tab-complete-command '')}")
  _describe -t commands "pw subcommand" _1st_arguments
}

_pw() {
  # Complete pw options
  local -a _pw_options=("${(@f)$(pw --no-banner --tab-complete-format=zsh --tab-complete-option '')}")
  _pw_options+=('*:: :->subcmds')
  _arguments $_pw_options && return 0

  # Match Sub-command
  if (( CURRENT == 1 )); then
    _complete_pw_subcommands
    return
  fi

  # Completion for each sub command
  case "$words[1]" in
    help)
      # Help takes a subcommand name to display help for
      _complete_pw_subcommands
      ;;
    *)
      # If the command is 'build' and a function named _pw_build exists, then run it.
      (( $+functions[_pw_$words[1]] )) && _pw_$words[1] && return 0
      # Otherwise, complete files.
      _files
      ;;

  esac
}

_pw