realwallpaper: redesign with new image sources

1 files changed, 73 insertions, 91 deletions

diff --git a/krebs/5pkgs/simple/realwallpaper/default.nix b/krebs/5pkgs/simple/realwallpaper/default.nix
index 9be8f7c7c..dfe03ff35 100644
--- a/krebs/5pkgs/simple/realwallpaper/default.nix
+++ b/krebs/5pkgs/simple/realwallpaper/default.nix
@@ -17,24 +17,28 @@ pkgs.writers.writeDashBin "generate-wallpaper" ''
     fi
   }
 
-  # usage: image_size FILENAME
-  image_size() {
-    identify "$1" | awk '{print$3}'
+  # check if file exists and fetch only if missing
+  fetch_once() {
+    name=$1
+    url=$2
+    test -e "$name" || fetch "$name" "$url"
   }
 
-  # usage: make_mask DST SRC MASK
-  make_layer() {
-    if needs_rebuild "$@"; then
-      echo "make $1 (apply mask)" >&2
-      convert "$2" "$3" -alpha off -compose copy_opacity -composite "$1"
+  fetch_older_min() {
+    min=$1
+    name=$2
+    url=$3
+    if ! test "$(find $name -mmin -$min)"; then
+      fetch "$name" "$url"
     fi
   }
 
-  # usage: flatten DST HILAYER LOLAYER
-  flatten() {
-    if needs_rebuild "$@"; then
-      echo "make $1 (flatten)" >&2
-      composite "$2" "$3" "$1"
+  fetch_older_days() {
+    days=$1
+    name=$2
+    url=$3
+    if ! test "$(find $name -mmin -$days)"; then
+      fetch "$name" "$url"
     fi
   }
 
@@ -60,35 +64,36 @@ pkgs.writers.writeDashBin "generate-wallpaper" ''
     return $result
   }
 
+  get_neo_url() {
+    url=$1
+    curl -Ss "$url" | grep '3600 x 1800' | sed 's/.*href="\([^"]*\)".*/\1/'
+  }
+
   main() {
     cd "$working_dir"
 
     # fetch source images in parallel
-    # fetch basic images which should not change
-    test -e nightmap-raw.jpg || fetch nightmap-raw.jpg "$nightmap_url" &
-    test -e sun-raw.png || fetch sun-raw.png \
-      "http://simpleicon.com/wp-content/uploads/sun-64x64.png" &
-
-    test -e moon-raw.png || fetch moon-raw.png \
-      "http://simpleicon.com/wp-content/uploads/moon__star-64x64.png" &
+    fetch_once sun-raw.png \
+      'http://simpleicon.com/wp-content/uploads/sun-64x64.png' &
+    fetch_once moon-raw.png \
+      'http://simpleicon.com/wp-content/uploads/moon__star-64x64.png' &
+    fetch_once nightmap-raw.jpg \
+      'https://eoimages.gsfc.nasa.gov/images/imagerecords/144000/144898/BlackMarble_2016_3km.jpg' &
+    fetch_once daymap-raw.tif \
+      'https://eoimages.gsfc.nasa.gov/images/imagerecords/57000/57752/land_shallow_topo_8192.tif' &
+
+    fetch_older_min 720 ice-raw.jpg $(get_neo_url \
+      'https://neo.sci.gsfc.nasa.gov/view.php?datasetId=NISE_D') &
+    fetch_older_days 3 snow-raw.jpg $(get_neo_url \
+      'https://neo.sci.gsfc.nasa.gov/view.php?datasetId=MOD10C1_E_SNOW') &
+    fetch_older_days 7 chlora-raw.jpg $(get_neo_url \
+      'https://neo.sci.gsfc.nasa.gov/view.php?datasetId=MY1DMM_CHLORA') &
+    fetch_older_days 3 fire-raw.jpg $(get_neo_url \
+      'https://neo.sci.gsfc.nasa.gov/view.php?datasetId=MOD14A1_E_FIRE') &
 
     # regular fetches
     fetch marker.json "$marker_url" &
 
-    # fetch daymap twice daily
-    if ! test "$(find daymap-raw.png -mmin -720)"; then
-      fetch daymap-raw.png "$daymap_url" &
-    fi
-
-    # fetch cholrophyl once every week
-    chlora_url=$(curl -Ss \
-      'https://neo.sci.gsfc.nasa.gov/view.php?datasetId=MY1DMM_CHLORA&date=2999-12-31' \
-      | grep '3600 x 1800' | sed 's/.*href="\([^"]*\)".*/\1/')
-
-    if ! test "$(find chlora-raw.jpg -mtime -7)"; then
-      fetch chlora-raw.jpg "$chlora_url" &
-    fi
-
     wait
 
     # fetch clouds if they are older than 3h
@@ -96,21 +101,26 @@ pkgs.writers.writeDashBin "generate-wallpaper" ''
       ${pkgs.nomads-cloud}/bin/nomads-cloud clouds-raw.png
     fi
 
+    check_type sun-raw.png image
+    check_type moon-raw.png image
     check_type nightmap-raw.jpg image
-    check_type daymap-raw.png image
+    check_type daymap-raw.tif image
+    check_type ice-raw.jpg image
+    check_type snow-raw.jpg image
+    check_type chlora-raw.jpg image
+    check_type fire-raw.jpg image
     check_type clouds-raw.png image
 
-    in_size=2048x1024
+    in_size=3600x1800
     xplanet_out_size=1466x1200
     out_geometry=1366x768+100+160
 
-    nightsnow_color='#0c1a49'  # nightmap
-
     for raw in \
         nightmap-raw.jpg \
-        daymap-raw.png \
-        clouds-raw.png \
+        daymap-raw.tif \
+        snow-raw.jpg \
         chlora-raw.jpg \
+        clouds-raw.png \
         ;
     do
       normal=''${raw%-raw.*}.png
@@ -120,6 +130,16 @@ pkgs.writers.writeDashBin "generate-wallpaper" ''
       fi
     done
 
+    # remove snow from ice map
+    if needs_rebuild ice.png ice-raw.jpg; then
+      convert ice-raw.jpg -fuzz 20% -fill black -opaque white -scale "$in_size" ice.png
+    fi
+
+    # make fire more red
+    if needs_rebuild fire.png fire-raw.jpg; then
+      convert fire-raw.jpg -fuzz 20% -fill '#ef840c' -opaque white -scale "$in_size" fire.png
+    fi
+
     if needs_rebuild sun.png sun-raw.png; then
       convert sun-raw.png -fill gold -opaque black -resize 50% PNG64:sun.png
     fi
@@ -131,60 +151,22 @@ pkgs.writers.writeDashBin "generate-wallpaper" ''
     # -- Daymap --
 
     # merge with water chlora layer
-    convert daymap.png chlora.png -compose lighten -composite daymap-final.png
-
-    # -- Nightmap --
-
-    # merge with water chlora layer
-    convert nightmap.png \( -fill black -colorize 70% chlora.png \) \
-      -compose lighten -composite nightmap-chlora.png
-
-    # create nightmap-fullsnow, a big blue picture
-    if needs_rebuild nightmap-fullsnow.png; then
-      convert -size $in_size xc:$nightsnow_color nightmap-fullsnow.png
-    fi
-
-    # extract daymap-snowmask from daymap-final
-    if needs_rebuild daymap-snowmask.png daymap.png; then
-      convert daymap.png -threshold 95% daymap-snowmask.png
-    fi
-
-    # extract nightmap-lightmask from nightmap
-    if needs_rebuild nightmap-lightmask.png nightmap.png; then
-      convert nightmap.png -threshold 25% nightmap-lightmask.png
+    if needs_rebuild daymap-final.png daymap.png fire.png snow.png ice.png chlora.png; then
+      convert daymap.png fire.png -compose lighten -composite daymap-1.png
+      convert daymap-1.png ice.png -compose lighten -composite daymap-2.png
+      convert daymap-2.png snow.png -compose lighten -composite daymap-3.png
+      convert daymap-3.png chlora.png -compose lighten -composite daymap-final.png
     fi
 
-    # create layers
-    make_layer nightmap-snowlayer.png nightmap-fullsnow.png daymap-snowmask.png
-    make_layer nightmap-lightlayer.png nightmap.png nightmap-lightmask.png
-
-    # apply layers
-    flatten nightmap-lightsnowlayer.png \
-      nightmap-lightlayer.png \
-      nightmap-snowlayer.png
-
-    flatten nightmap-final.png \
-      nightmap-lightsnowlayer.png \
-      nightmap-chlora.png
-
+    # -- Nightmap --
 
-    # create marker file from json
-    if [ -s marker.json ]; then
-      jq -r 'to_entries[] | @json "\(.value.latitude) \(.value.longitude)"' marker.json > marker_file
-      echo 'position=sun image=sun.png' >> marker_file
-      echo 'position=moon image=moon.png' >> marker_file
+    if needs_rebuild nightmap-final.png nightmap.png fire.png snow.png ice.png chlora.png; then
+      convert nightmap.png fire.png -compose lighten -composite nightmap-1.png
+      convert nightmap-1.png \( -fill black -colorize 70% ice.png \) -compose lighten -composite nightmap-2.png
+      convert nightmap-2.png \( -fill black -colorize 70% snow.png \) -compose lighten -composite nightmap-3.png
+      convert nightmap-3.png \( -fill black -colorize 70% chlora.png \) -compose lighten -composite nightmap-final.png
     fi
 
-    # make all unmodified files as final
-    for normal in \
-        clouds.png \
-        ;
-    do
-      final=''${normal%.png}-final.png
-      needs_rebuild $final &&
-        ln $normal $final
-    done
-
     # rebuild every time to update shadow
     xplanet --num_times 1 --geometry $xplanet_out_size \
       --output xplanet-output.png --projection merc \
@@ -193,7 +175,7 @@ pkgs.writers.writeDashBin "generate-wallpaper" ''
         "Earth"
         map=daymap-final.png
         night_map=nightmap-final.png
-        cloud_map=clouds-final.png
+        cloud_map=clouds.png
         cloud_threshold=1
         cloud_gamma=2.5
         shade=15
@@ -206,7 +188,7 @@ pkgs.writers.writeDashBin "generate-wallpaper" ''
         "Earth"
         map=daymap-final.png
         night_map=nightmap-final.png
-        cloud_map=clouds-final.png
+        cloud_map=clouds.png
         cloud_threshold=1
         cloud_gamma=2.5
         marker_file=marker_file