#!/usr/bin/env bash
# Summary: Installs a local directory as a basher package
# Usage: basher link [--no-deps] <directory> <package>

set -e

resolve_link() {
  if type -p realpath >/dev/null; then
    realpath "$1"
  else
    readlink -f "$1"
  fi
}

no_deps="false"

case $1 in
  --no-deps)
    no_deps="true"
    shift
  ;;
esac

if [ "$#" -ne 2 ]; then
  basher-help link
  exit 1
fi

directory="$1"
package="$2"

if [ ! -d "$directory" ]; then
  echo "Directory '$directory' not found."
  exit 1
fi

if [ -z "$package" ]; then
  basher-help link
  exit 1
fi

IFS=/ read -r namespace name <<< "$package"

if [ -z "$namespace" ]; then
  echo "Missing <namespace> from package '$package', <namespace>/<name>"
  echo
  basher-help link
  exit 1
fi

if [ -z "$name" ]; then
  echo "Missing <name> from package '$package', <namespace>/<name>"
  echo
  basher-help link
  exit 1
fi

if [ -d "${BASHER_PACKAGES_PATH}/$package" ]; then
  echo "Package '$package' is already present"
  exit 1
fi

# Make sure the namespace directory exists before linking
if [ ! -d "${BASHER_PACKAGES_PATH}/$namespace" ]; then
  mkdir -p "${BASHER_PACKAGES_PATH}/$namespace"
fi

# Resolve local package path
directory="$(resolve_link "$directory")"

ln -s "$directory" "${BASHER_PACKAGES_PATH}/$package"

basher-_link-bins "$package"
basher-_link-completions "$package"
basher-_link-man "$package"

if [ "$no_deps" = "false" ]; then
  basher-_deps "$package"
fi