#!/bin/sh
# reader — open markdown files in Reader.app.
#
#   reader              launch Reader (no document)
#   reader <file>...    open one or more files
#
# Paths are resolved to absolute before being handed to Launch Services
# so Reader's document handler receives them correctly regardless of the
# shell's current working directory.

set -e

BUNDLE_ID="com.jefflarson.Reader"

case "${1:-}" in
    -h|--help)
        cat <<EOF
reader — open markdown files in Reader.app

  reader              launch Reader
  reader <file>...    open files in Reader
  reader -h           show this help
EOF
        exit 0
        ;;
esac

if [ $# -eq 0 ]; then
    exec /usr/bin/open -b "$BUNDLE_ID"
fi

absolute_paths=""
for arg in "$@"; do
    if [ ! -e "$arg" ]; then
        echo "reader: $arg: no such file" >&2
        exit 1
    fi
    abs="$(/usr/bin/dirname "$arg")"
    abs="$(cd "$abs" && pwd)/$(/usr/bin/basename "$arg")"
    absolute_paths="$absolute_paths
$abs"
done

# Pass each path as a separate argument via xargs so paths with spaces
# survive untouched.
printf '%s' "$absolute_paths" | /usr/bin/tr '\n' '\0' \
    | /usr/bin/xargs -0 /usr/bin/open -b "$BUNDLE_ID"