#!/usr/bin/env bash

#
# Build flags
#

cppflags=

#
# Check for <lib>
#

has_lib() {
  local lib=$1
  for dir in /lib /usr/lib /usr/local/lib /opt/local/lib; do
    test -d $dir && ls $dir | grep $lib && return 0
  done
  return 1
}

#
# Check for <lib> and append to cppflags
#

has() {
  local lib=$1
  check $lib
  has_lib $lib > /dev/null
  if test $? -eq 0; then
    found $lib
    cppflags="$cppflags --with-$lib"
  else
    missing $lib
  fi
}

#
# Check pkg-config for <lib>
#

has_pkg_config() {
  local lib=$1
  check $lib
  pkg-config --libs cairo > /dev/null
  if test $? -eq 0; then
    found $lib
  else
    missing $lib
    exit 1
  fi
}

#
# Output check
#

check() {
  printf "  \e[90mcheck %s\e[m" $1
}

#
# Output found
#

found() {
  printf "\r  \e[32m✔ found \e[90m%s\e[m\n" $1
}

#
# Output missing
#

missing() {
  printf "\r  \e[31m✖ cannot find \e[90m%s\e[m\n" $1
}

# DO IT

echo
has gif
has jpeg
has_pkg_config cairo
echo

# TODO: output flags and get npm "install" script working