# install these packages into your profile. Then add
# ~/.nix-profile/gimp-version-plugins to your plugin list you can find at
# preferences -> Folders -> Plug-ins
# same applies for the scripts

{ pkgs, gimp }:
let
  inherit (pkgs) stdenv fetchurl pkgconfig gtkLibs;
  inherit (gtkLibs) glib;
  targetPluginDir = "$out/${gimp.name}-plugins";
  targetScriptDir = "$out/${gimp.name}-scripts";
  prefix = "plugin-gimp-";

  pluginDerivation = a: stdenv.mkDerivation ({
    prePhases = "extraLib";
    extraLib = ''
      installScripts(){
        ensureDir ${targetScriptDir};
        for p in "$@"; do cp "$p" ${targetScriptDir}; done
      }
      installPlugins(){
        ensureDir ${targetPluginDir};
        for p in "$@"; do cp "$p" ${targetPluginDir}; done
      }
    '';
  }
  // a
    # don't call this gimp-* unless you want nix replace gimp by a plugin :-)
  // { name = "${a.name}-${gimp.name}-plugin"; }
  );

  scriptDerivation = {name, src} : pluginDerivation {
    inherit name; phases = "extraLib installPhase";
    installPhase = "installScripts ${src}";
  };

 libLQR = pluginDerivation {
    name = "liblqr-1-0.4.1";
    # required by lqrPlugin, you don't havet to install this lib explicitely
    buildInputs = [ gimp ] ++ gimp.buildInputs;
    src = fetchurl {
      url = http://registry.gimp.org/files/liblqr-1-0.4.1.tar.bz2;
      sha256 = "02g90wag7xi5rjlmwq8h0qs666b1i2sa90s4303hmym40il33nlz";
    };
  };

in
rec {
  fourier = pluginDerivation {
    /* menu:
       Filters/Generic/FFT Forward
       Filters/Generic/FFT Inverse
    */
    name = "fourier-0.3.3";
    buildInputs = [ gimp pkgs.fftwSinglePrec  pkgconfig glib] ++ gimp.buildInputs;
    postInstall = "fail";
    installPhase = "installPlugins fourier";
    src = fetchurl {
      url = http://people.via.ecp.fr/~remi/soft/gimp/fourier-0.3.3.tar.gz;
      sha256 = "0xxgp0lrjxsj54sgygi31c7q41jkqzn0v18qyznrviv8r099v29p";
    };
  };

  resynthesizer = pluginDerivation {
    /* menu:
      Filters/Map/Resynthesize
      Filters/Enhance/Smart enlarge
      Filters/Enhance/Smart sharpen
      Filters/Enhance/Smart remove selection
    */
    name = "resynthesizer-0.16";
    buildInputs = [ gimp pkgs.fftw ] ++ gimp.buildInputs;
    src = fetchurl {
      url = http://www.logarithmic.net/pfh-files/resynthesizer/resynthesizer-0.16.tar.gz;
      sha256 = "1k90a1jzswxmajn56rdxa4r60v9v34fmqsiwfdxqcvx3yf4yq96x";
    };

    installPhase = "
      installPlugins resynth
      installScripts smart-{enlarge,remove}.scm
    ";
  };

  texturize = pluginDerivation {
    name = "texturize-2.1";
    buildInputs = [ gimp ] ++ gimp.buildInputs;
    src = fetchurl {
      url = http://prdownloads.sourceforge.net/gimp-texturize/texturize-2.1_src.tgz;
      sha256 = "0cdjq25g3yfxx6bzx6nid21kq659s1vl9id4wxyjs2dhcv229cg3";
    };
    installPhase = "installPlugins src/texturize";
  };

  waveletSharpen = pluginDerivation {
    /* menu:
      Filters/Enhance/Wavelet sharpen
    */
    name = "wavelet-sharpen-0.1.2";
    buildInputs = [ gimp ] ++ gimp.buildInputs;
    src = fetchurl {
      url = http://registry.gimp.org/files/wavelet-sharpen-0.1.2.tar.gz;
      sha256 = "0vql1k67i21g5ivaa1jh56rg427m0icrkpryrhg75nscpirfxxqw";
    };
    installPhase = "installPlugins src/wavelet-sharpen"; # TODO translations are not copied .. How to do this on nix?
  };

  lqrPlugin = pluginDerivation {
    /* menu:
       Layer/Liquid Rescale
    */
    name = "lqr-plugin-0.6.1";
    buildInputs = [ pkgconfig libLQR gimp ] ++ gimp.buildInputs;
    src = fetchurl {
      url = http://registry.gimp.org/files/gimp-lqr-plugin-0.6.1.tar.bz2;
      sha256 = "00hklkpcimcbpjly4rjhfipaw096cpy768g9wixglwrsyqhil7l9";
    };
    #postInstall = ''ensureDir $out/nix-support; echo "${libLQR}" > "$out/nix-support/propagated-user-env-packages"'';
    installPhase = "installPlugins src/gimp-lqr-plugin";
  };

  # this is more than a gimp plugin !
  # it can be made to compile the gimp plugin only though..
  gmic =
  let imagemagick = pkgs.imagemagickBig; # maybe the non big version is enough?
  in pluginDerivation {
      name = "gmic-1.3.2.0";
      buildInputs = [ imagemagick pkgconfig gimp pkgs.fftwSinglePrec ] ++ gimp.buildInputs;
      src = fetchurl {
        url = http://dfn.dl.sourceforge.net/sourceforge/gmic/gmic_1.3.2.0.tar.gz;
        sha256 = "0mxq664vzzc2l6k6sqm9syp34mihhi262i6fixk1g12lmc28797h";
      };
      preConfigure = ''
        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I${imagemagick}/include/ImageMagick"
      '';
      installPhase = "installPlugins src/gmic4gimp";
      meta = { 
        description = "script language for image processing which comes with its open-source interpreter";
        homepage = http://gmic.sourceforge.net/repository.shtml;
        license = "CeCILL FREE SOFTWARE LICENSE AGREEMENT";
        /*
        The purpose of this Free Software license agreement is to grant users
        the right to modify and redistribute the software governed by this
        license within the framework of an open source distribution model.
        [ ... ] */
      };
  };

  /* =============== simple script files ==================== */

  lightning = scriptDerivation {
    name = "Lightning";
    src = fetchurl {
      url = http://registry.gimp.org/files/Lightning.scm;
      sha256 = "c14a8f4f709695ede3f77348728a25b3f3ded420da60f3f8de3944b7eae98a49";
    };
  };

  /* space in name trouble ?

  rainbowPlasma = scriptDerivation {
    # http://registry.gimp.org/node/164
    name = "rainbow-plasma";
    src = fetchurl {
      url = "http://registry.gimp.org/files/Rainbow Plasma.scm";
      sha256 = "34308d4c9441f9e7bafa118af7ec9540f10ea0df75e812e2f3aa3fd7b5344c23";
      name = "Rainbow-Plasma.scm"; # nix doesn't like spaces, does it?
    };
  };
  */

  /* doesn't seem to be working :-(
  lightningGate = scriptDerivation {
    # http://registry.gimp.org/node/153
    name = "lightning-gate";
    src = fetchurl {
      url = http://registry.gimp.org/files/LightningGate.scm;
      sha256 = "181w1zi9a99kn2mfxjp43wkwcgw5vbb6iqjas7a9mhm8p04csys2";
    };
  };
  */

}