bash_completion

#!/bin/bash -e

if ! command -v curl > /dev/null && ! command -v wget > /dev/null; then
  >&2 echo "WARNING: Could not find either curl ( https://curl.haxx.se/ ) or wget ( https://www.gnu.org/software/wget/ )."
fi

if ! command -v jq > /dev/null; then
  >&2 echo "WARNING: Could not find jq ( https://stedolan.github.io/jq/ )."
fi

__cppsm_query() {
  local URL="$1"
  local QUERY="$2"
  if command -v jq > /dev/null; then
    if command -v curl > /dev/null; then
      local DOWNLOAD_CMD=(curl -s "$URL")
    elif command -v wget > /dev/null; then
      local DOWNLOAD_CMD=(wget -qO- "$URL")
    else
      return 0
    fi
    "${DOWNLOAD_CMD[@]}" | jq "$QUERY"
  fi
}

__cppsm_complete() {
  local IFS=$' \t\n'
  COMPREPLY=()
  local PREVIOUS="${3#\"}"
  PREVIOUS="${PREVIOUS%\"}"
  local CURRENT="${2#\"}"
  CURRENT="${CURRENT%\"}"
  case "$PREVIOUS" in
    cppsm)
      local COMMANDS_DIR
      COMMANDS_DIR="$(command -v cppsm)"
      COMMANDS_DIR="${COMMANDS_DIR%/*}/../commands"

      # shellcheck disable=SC2207 disable=SC2035
      COMPREPLY=($(compgen -W "$(cd "$COMMANDS_DIR" && echo *)" -- "$CURRENT"))
      ;;
    add)
      # shellcheck disable=SC2207
      COMPREPLY=($(compgen -W "equipment requires" -- "$CURRENT"))
      ;;
    clone)
      # shellcheck disable=SC2207
      COMPREPLY=($(__cppsm_query "https://api.github.com/search/repositories?q=topic:cppsm+${CURRENT##*/}" \
                                 '.items | .[] | .ssh_url'))
      ;;
    equipment|requires)
      # shellcheck disable=SC2207
      COMPREPLY=($(__cppsm_query "https://api.github.com/search/repositories?q=topic:cppsm+${CURRENT##*/}" \
                                 '.items | .[] | .clone_url'))
      ;;
    https:*.git|git*.git)
      # shellcheck disable=SC2207
      COMPREPLY=($(git ls-remote --heads "$PREVIOUS" | sed -e 's#[^ ]*\s*refs/heads/##g'))
      ;;
    *)
      ;;
  esac
}

complete -F __cppsm_complete -o default cppsm