feat: print scheme command

Generates and prints a scheme for an image (or the current wallpaper if not given)
Also record use hevc codec

scheme/gen-print-scheme.fish

@@ -0,0 +1,36 @@
+#!/bin/fish
+
+set -l src (dirname (status filename))
+
+. $src/../util.fish
+
+test -f "$argv[1]" && set -l img (realpath "$argv[1]") || set -l img $C_STATE/wallpaper/thumbnail.jpg
+
+# Thumbnail image if not already thumbnail
+if test $img != $C_STATE/wallpaper/thumbnail.jpg
+    set -l thumb_path $C_CACHE/thumbnails/(sha1sum $img | cut -d ' ' -f 1).jpg
+    if ! test -f $thumb_path
+        magick -define jpeg:size=256x256 $img -thumbnail 128x128\> $thumb_path
+    end
+    set img $thumb_path
+end
+
+set -l variants vibrant tonalspot expressive fidelity fruitsalad rainbow neutral content monochrome
+contains -- "$argv[2]" $variants && set -l variant $argv[2] || set -l variant (cat $C_STATE/scheme/current-variant.txt 2> /dev/null)
+contains -- "$variant" $variants || set -l variant tonalspot
+
+set -l hash (sha1sum $img | cut -d ' ' -f 1)
+
+# Cache scheme
+if ! test -d $C_CACHE/schemes/$hash/$variant
+    set -l colours ($src/score.py $img)
+    $src/autoadjust.py dark $variant $colours $C_CACHE/schemes/$hash
+    $src/autoadjust.py light $variant $colours $C_CACHE/schemes/$hash
+end
+
+# Get mode from image
+set -l lightness (magick $img -format '%[fx:int(mean*100)]' info:)
+test $lightness -ge 60 && set -l mode light || set -l mode dark
+
+# Print scheme
+cat $C_CACHE/schemes/$hash/$variant/default/$mode.txt