46 lines
1.8 KiB
Nix
46 lines
1.8 KiB
Nix
{ lib, pkgs, cfg, models }:
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let
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# Collect unique (desktopSize, thumbnailSize) pairs from provisioned phone models
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sizeConfigs = lib.unique (lib.filter (s: s.desktop != null)
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(lib.mapAttrsToList (_: phone:
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let m = models.${phone.model}; in
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{ desktop = m.desktopSize; thumbnail = m.thumbnailSize; }
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) cfg.phones));
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# Parse "WxH" or "WxHxD" into width and height
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parseDimensions = size:
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let parts = lib.splitString "x" size;
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in { w = lib.elemAt parts 0; h = lib.elemAt parts 1; };
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# Build a resized image derivation
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resizeImage = { src, width, height, name }:
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pkgs.runCommand name { nativeBuildInputs = [ pkgs.imagemagick ]; } ''
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convert "${src}" -resize ${width}x${height}! -strip PNG24:$out
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'';
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in lib.concatMap (sc:
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let
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size = sc.desktop;
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dim = parseDimensions size;
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tn = parseDimensions sc.thumbnail;
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listXml = ''
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<CiscoIPPhoneImageList>
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'' + lib.concatStringsSep "\n" (lib.imap1 (i: name: ''
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<ImageItem Image="TFTP:Desktops/${size}/tn-${toString i}.png" URL="TFTP:Desktops/${size}/bg-${toString i}.png"/>
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'') (lib.attrNames cfg.backgroundImages))
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+ ''
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</CiscoIPPhoneImageList>
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'';
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listFile = pkgs.writeText "List.xml" listXml;
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in
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[{ name = "Desktops/${size}/List.xml"; path = listFile; }]
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++ lib.concatLists (lib.imap1 (i: name:
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let src = cfg.backgroundImages.${name}; in [
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{ name = "Desktops/${size}/bg-${toString i}.png";
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path = resizeImage { inherit src; width = dim.w; height = dim.h; name = "bg-${toString i}.png"; }; }
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{ name = "Desktops/${size}/tn-${toString i}.png";
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path = resizeImage { inherit src; width = tn.w; height = tn.h; name = "tn-${toString i}.png"; }; }
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]
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) (lib.attrNames cfg.backgroundImages))
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) sizeConfigs
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