nixos-config/user/mimeapps.nix

{ config, pkgs, lib, font, ... }:
let inherit (import ./variables.nix) browser;
in {
  config = {
    xdg.desktopEntries = {
      kak = {
        name = "Kakoune";
        genericName = "Text Editor";
        comment = "Edit text files";
        exec = "kak %F";
        terminal = true;
        type = "Application";
        icon = "kak.desktop";
        categories = [ "Utility" "TextEditor" ];
        startupNotify = true;
        mimeType = [
          "text/english"
          "text/plain"
          "text/x-makefile"
          "text/x-c++hdr"
          "text/x-c++src"
          "text/x-chdr"
          "text/x-csrc"
          "text/x-java"
          "text/x-moc"
          "text/x-pascal"
          "text/x-tcl"
          "text/x-tex"
          "application/x-shellscript"
          "text/x-c"
          "text/x-c++"
        ];
        settings = {
          Keywords = "Text;editor;";
          TryExec = "kak";
        };
      };
      neomutt = {
        name = "Neomutt";
        genericName = "Email Client";
        comment = "View and Send Emails";
        exec = "neomutt %U";
        terminal = true;
        type = "Application";
        icon = "mutt";
        categories = [ "Network" "Email" ];
        startupNotify = false;
        mimeType = [ "x-scheme-handler/mailto" ];
        settings = { Keywords = "Mail;E-mail;"; };
      };
    };
    # workaround to allow overriding mimeapps file
    # btw, whatever it was that decided that damn file should always be written is an asshole
    xdg.configFile."mimeapps.list".force = true;
    xdg.mimeApps =
      let

        createMimeAssociation = (mime_prefix: application: mime_suffix: {
          "${mime_prefix}/${mime_suffix}" = application;
        });

        createMimeAssociations = (mime_prefix: application: mime_suffixes:
          lib.foldAttrs (n: _: n) { }
            (map (createMimeAssociation mime_prefix application) mime_suffixes));

        mimes = simple
          // (createMimeAssociations "image" "pqiv.desktop" image_suffixes)
          // (createMimeAssociations "video" "mpv.desktop" video_suffixes);

        browser_desktop = {
          firefox = "firefox.desktop";
          qutebrowser = "org.qutebrowser.qutebrowser.desktop";
        }.${browser};

        simple = {
          "text/plain" = "kak.desktop";
          "inode/directory" = "thunar.desktop";

          "application/pdf" = "org.pwmt.zathura.desktop";
          "application/epub+zip" = "org.pwmt.zathura.desktop";

          "text/html" = browser_desktop;
          "x-scheme-handler/http" = browser_desktop;
          "x-scheme-handler/https" = browser_desktop;

          "x-scheme-handler/magnet" = "torrent.desktop";
          "application/x-bittorrent" = "torrent.desktop";

          "x-scheme-handler/mailto" = "thunderbird.desktop";
        };

        image_suffixes = [
          "bmp"
          "cgm"
          "dicom-rle"
          "emf"
          "example"
          "fits"
          "g3fax"
          "gif"
          "heic"
          "heif"
          "ief"
          "jls"
          "jp2"
          "jpeg"
          "jpeg"
          "jpg"
          "jpm"
          "jpx"
          "ktx"
          "naplps"
          "pjpeg"
          "png"
          "prs.btif"
          "prs.pti"
          "pwg-raster"
          "svg+xml-compressed"
          "svg+xml"
          "t38"
          "tiff-fx"
          "tiff"
          "vnd.adobe.photoshop"
          "vnd.airzip.accelerator.azv"
          "vnd.cns.inf2"
          "vnd.dece.graphic"
          "vnd.djvu"
          "vnd.dvb.subtitle"
          "vnd.dwg"
          "vnd.dxf"
          "vnd.fastbidsheet"
          "vnd.fpx"
          "vnd.fst"
          "vnd.fujixerox.edmics-mmr"
          "vnd.fujixerox.edmics-rlc"
          "vnd.globalgraphics.pgb"
          "vnd.microsoft.icon"
          "vnd.mix"
          "vnd.mozilla.apng"
          "vnd.ms-modi"
          "vnd.net-fpx"
          "vnd.radiance"
          "vnd.rn-realpix"
          "vnd.sealed.png"
          "vnd.sealedmedia.softseal.gif"
          "vnd.sealedmedia.softseal.jpg"
          "vnd.svf"
          "vnd.tencent.tap"
          "vnd.valve.source.texture"
          "vnd.wap.wbmp"
          "vnd.xiff"
          "vnd.zbrush.pcx"
          "webp"
          "wmf"
          "x-bmp"
          "x-cmu-raster"
          "x-compressed-xcf"
          "x-emf"
          "x-eps"
          "x-exr"
          "x-fits"
          "x-freehand"
          "x-gimp-gbr"
          "x-gimp-gih"
          "x-gimp-pat"
          "x-icon"
          "x-pcx"
          "x-png"
          "x-portable-anymap"
          "x-portable-bitmap"
          "x-portable-graymap"
          "x-portable-pixmap"
          "x-psd"
          "x-psp"
          "x-rgb"
          "x-sgi"
          "x-targa"
          "x-tga"
          "x-vsd"
          "x-webp"
          "x-wmf"
          "x-xbitmap"
          "x-xcdr"
          "x-xcf"
          "x-xcursor"
          "x-xpixmap"
          "x-xwindowdump"
        ];

        video_suffixes = [
          "1d-interleaved-parityfec"
          "3gp"
          "3gpp"
          "3gpp-tt"
          "3gpp2"
          "BMPEG"
          "BT656"
          "CelB"
          "DV"
          "H261"
          "H263"
          "H263-1998"
          "H263-2000"
          "H264"
          "H264-RCDO"
          "H264-SVC"
          "H265"
          "JPEG"
          "MP1S"
          "MP2P"
          "MP2T"
          "MP4V-ES"
          "MPV"
          "SMPTE292M"
          "VP8"
          "avi"
          "divx"
          "dv"
          "encaprtp"
          "example"
          "fli"
          "flv"
          "iso.segment"
          "jpeg2000"
          "mj2"
          "mkv"
          "mp2t"
          "mp4"
          "mp4v-es"
          "mpeg"
          "mpeg-system"
          "mpeg4-generic"
          "msvideo"
          "nv"
          "ogg"
          "parityfec"
          "pointer"
          "quicktime"
          "raptorfec"
          "raw"
          "rtp-enc-aescm128"
          "rtploopback"
          "rtx"
          "ulpfec"
          "vc1"
          "vnd.CCTV"
          "vnd.dece.hd"
          "vnd.dece.mobile"
          "vnd.dece.mp4"
          "vnd.dece.pd"
          "vnd.dece.sd"
          "vnd.dece.video"
          "vnd.directv.mpeg"
          "vnd.directv.mpeg-tts"
          "vnd.divx"
          "vnd.dlna.mpeg-tts"
          "vnd.dvb.file"
          "vnd.fvt"
          "vnd.hns.video"
          "vnd.iptvforum.1dparityfec-1010"
          "vnd.iptvforum.1dparityfec-2005"
          "vnd.iptvforum.2dparityfec-1010"
          "vnd.iptvforum.2dparityfec-2005"
          "vnd.iptvforum.ttsavc"
          "vnd.iptvforum.ttsmpeg2"
          "vnd.motorola.video"
          "vnd.motorola.videop"
          "vnd.mpegurl"
          "vnd.ms-playready.media.pyv"
          "vnd.nokia.interleaved-multimedia"
          "vnd.nokia.mp4vr"
          "vnd.nokia.videovoip"
          "vnd.objectvideo"
          "vnd.radgamettools.bink"
          "vnd.radgamettools.smacker"
          "vnd.rn-realvideo"
          "vnd.sealed.mpeg1"
          "vnd.sealed.mpeg4"
          "vnd.sealed.swf"
          "vnd.sealedmedia.softseal.mov"
          "vnd.uvvu.mp4"
          "vnd.vivo"
          "webm"
          "x-anim"
          "x-annodex"
          "x-avi"
          "x-flc"
          "x-fli"
          "x-flic"
          "x-flv"
          "x-javafx"
          "x-m4v"
          "x-matroska"
          "x-matroska-3d"
          "x-mpeg"
          "x-mpeg-system"
          "x-mpeg2"
          "x-mpeg3"
          "x-ms-afs"
          "x-ms-asf"
          "x-ms-asf-plugin"
          "x-ms-asx"
          "x-ms-wm"
          "x-ms-wmv"
          "x-ms-wmx"
          "x-ms-wvx"
          "x-ms-wvxvideo"
          "x-msvideo"
          "x-nsv"
          "x-ogm"
          "x-ogm+ogg"
          "x-sgi-movie"
          "x-theora"
          "x-theora+ogg"
        ];
      in
      {
        enable = true;
        defaultApplications = mimes;
      };

  };
}