fix

home/scripts.nix

@@ -14,6 +14,8 @@ in
     ++ lib.optionals hostConfig.isDarwin (builtins.attrValues customScripts.darwinPackages);
 
   home.activation.initializeThemeState = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+    ${customScripts.themeAssetsText}
+
     mkdir -p "${customScripts.theme.paths.stateDir}" \
              "${customScripts.theme.paths.fzfDir}" \
              "${customScripts.theme.paths.ghosttyDir}" \
@@ -25,36 +27,20 @@ in
       mode=$(tr -d '[:space:]' < "${customScripts.theme.paths.stateFile}")
     else
       mode="${customScripts.theme.defaultMode}"
-      printf '%s\n' "$mode" > "${customScripts.theme.paths.stateFile}"
     fi
 
-    case "$mode" in
-      light)
-        fzf_target="${customScripts.theme.paths.fzfDir}/cozybox-light"
-        ghostty_target="${customScripts.theme.paths.ghosttyDir}/cozybox-light"
-        tmux_target="${customScripts.tmuxConfigs.light}"
-        lazygit_target="${customScripts.theme.paths.lazygitDir}/config-light.yml"
-        ;;
-      *)
-        printf '%s\n' "${customScripts.theme.defaultMode}" > "${customScripts.theme.paths.stateFile}"
-        fzf_target="${customScripts.theme.paths.fzfDir}/cozybox-dark"
-        ghostty_target="${customScripts.theme.paths.ghosttyDir}/cozybox-dark"
-        tmux_target="${customScripts.tmuxConfigs.dark}"
-        lazygit_target="${customScripts.theme.paths.lazygitDir}/config-dark.yml"
-        ;;
-    esac
+    mode="$(theme_normalize_mode "$mode")"
+    printf '%s\n' "$mode" > "${customScripts.theme.paths.stateFile}"
+    theme_load_mode_assets "$mode"
 
-    ln -sfn "$fzf_target" "${customScripts.theme.paths.fzfCurrentFile}"
-    ln -sfn "$ghostty_target" "${customScripts.theme.paths.ghosttyCurrentFile}"
-    ln -sfn "$tmux_target" "${customScripts.theme.paths.tmuxCurrentFile}"
-    ln -sfn "$lazygit_target" "${customScripts.theme.paths.lazygitCurrentFile}"
+    ln -sfn "$THEME_FZF_TARGET" "${customScripts.theme.paths.fzfCurrentFile}"
+    ln -sfn "$THEME_GHOSTTY_TARGET" "${customScripts.theme.paths.ghosttyCurrentFile}"
+    ln -sfn "$THEME_TMUX_TARGET" "${customScripts.theme.paths.tmuxCurrentFile}"
+    ln -sfn "$THEME_LAZYGIT_TARGET" "${customScripts.theme.paths.lazygitCurrentFile}"
     ${lib.optionalString hostConfig.isDarwin ''
     lg_darwin="${config.home.homeDirectory}/Library/Application Support/lazygit"
     mkdir -p "$lg_darwin"
-    case "$mode" in
-      light) ln -sfn "$lg_darwin/config-light.yml" "$lg_darwin/config.yml" ;;
-      *)     ln -sfn "$lg_darwin/config-dark.yml" "$lg_darwin/config.yml" ;;
-    esac
+    ln -sfn "$THEME_DARWIN_LAZYGIT_TARGET" "$lg_darwin/config.yml"
     ''}
 
     # seed wallpapers from static assets if no generated ones exist yet
@@ -66,10 +52,6 @@ in
     fi
 
     # ensure wallpaper symlink points to active mode
-    case "$mode" in
-      light) wp_target="${customScripts.theme.wallpapers.light}" ;;
-      *)     wp_target="${customScripts.theme.wallpapers.dark}" ;;
-    esac
-    ln -sfn "$wp_target" "${customScripts.theme.wallpapers.current}"
+    ln -sfn "$THEME_WALLPAPER" "${customScripts.theme.wallpapers.current}"
   '';
 }

lib/theme.nix

@@ -13,16 +13,20 @@ let
     aquaNeutral = "#689d6a";
     gray = "#928374";
   };
-  wallpaperGeneration = {
-    view = {
-      # Lower zoom shows more terrain in each wallpaper.
-      zoom = 11;
-      tileConcurrency = 6;
+  wallpaperGeneration =
+    let
+      viewPresets = {
+        close = 12;
+        balanced = 11;
+        wide = 10;
       };
-    contours = {
-      # Higher levels produce denser contour lines.
-      levels = 20;
+      densityPresets = {
+        sparse = 14;
+        balanced = 20;
+        dense = 28;
       };
+      view = "balanced";
+      density = "balanced";
       candidatePool = {
         maxCached = 24;
         randomAttempts = 20;
@@ -32,6 +36,29 @@ let
         enabled = true;
         fontSize = 14;
       };
+    in
+    {
+      inherit
+        candidatePool
+        density
+        label
+        view
+        ;
+      presetValues = {
+        density = densityPresets;
+        view = viewPresets;
+      };
+      resolved = {
+        candidatePool = candidatePool;
+        contours = {
+          levels = densityPresets.${density};
+        };
+        label = label;
+        view = {
+          tileConcurrency = 6;
+          zoom = viewPresets.${view};
+        };
+      };
     };
   wallpapers = {
     dir = "${config.home.homeDirectory}/Pictures/Screensavers";

scripts/default.nix

@@ -12,11 +12,71 @@ let
   };
 
   wallpaperGenConfig = pkgs.writeText "wallpaper-gen-config.json" (
-    builtins.toJSON theme.wallpapers.generation
+    builtins.toJSON theme.wallpapers.generation.resolved
   );
 
   wallpaperPython = pkgs.python3.withPackages (ps: [ ps.pillow ]);
 
+  lazygitDarwinDir = "${config.home.homeDirectory}/Library/Application Support/lazygit";
+
+  modeAssets = {
+    dark = {
+      fzf = "${theme.paths.fzfDir}/cozybox-dark";
+      ghostty = "${theme.paths.ghosttyDir}/cozybox-dark";
+      tmux = "${tmuxConfigs.dark}";
+      lazygit = "${theme.paths.lazygitDir}/config-dark.yml";
+      darwinLazygit = "${lazygitDarwinDir}/config-dark.yml";
+      wallpaper = theme.wallpapers.dark;
+      appleDarkMode = "true";
+    };
+    light = {
+      fzf = "${theme.paths.fzfDir}/cozybox-light";
+      ghostty = "${theme.paths.ghosttyDir}/cozybox-light";
+      tmux = "${tmuxConfigs.light}";
+      lazygit = "${theme.paths.lazygitDir}/config-light.yml";
+      darwinLazygit = "${lazygitDarwinDir}/config-light.yml";
+      wallpaper = theme.wallpapers.light;
+      appleDarkMode = "false";
+    };
+  };
+
+  themeAssetsText = ''
+    theme_normalize_mode() {
+      case "$1" in
+        dark|light) printf '%s\n' "$1" ;;
+        *) printf '%s\n' '${theme.defaultMode}' ;;
+      esac
+    }
+
+    theme_load_mode_assets() {
+      local mode
+      mode="$(theme_normalize_mode "$1")"
+
+      case "$mode" in
+        light)
+          THEME_MODE='light'
+          THEME_FZF_TARGET='${modeAssets.light.fzf}'
+          THEME_GHOSTTY_TARGET='${modeAssets.light.ghostty}'
+          THEME_TMUX_TARGET='${modeAssets.light.tmux}'
+          THEME_LAZYGIT_TARGET='${modeAssets.light.lazygit}'
+          THEME_DARWIN_LAZYGIT_TARGET='${modeAssets.light.darwinLazygit}'
+          THEME_WALLPAPER='${modeAssets.light.wallpaper}'
+          THEME_APPLE_DARK_MODE=${modeAssets.light.appleDarkMode}
+          ;;
+        *)
+          THEME_MODE='dark'
+          THEME_FZF_TARGET='${modeAssets.dark.fzf}'
+          THEME_GHOSTTY_TARGET='${modeAssets.dark.ghostty}'
+          THEME_TMUX_TARGET='${modeAssets.dark.tmux}'
+          THEME_LAZYGIT_TARGET='${modeAssets.dark.lazygit}'
+          THEME_DARWIN_LAZYGIT_TARGET='${modeAssets.dark.darwinLazygit}'
+          THEME_WALLPAPER='${modeAssets.dark.wallpaper}'
+          THEME_APPLE_DARK_MODE=${modeAssets.dark.appleDarkMode}
+          ;;
+      esac
+    }
+  '';
+
   mkScript =
     {
       file,
@@ -107,31 +167,20 @@ let
         "@STATE_FILE@" = theme.paths.stateFile;
         "@FZF_DIR@" = theme.paths.fzfDir;
         "@FZF_CURRENT_FILE@" = theme.paths.fzfCurrentFile;
-        "@FZF_DARK_FILE@" = "${theme.paths.fzfDir}/cozybox-dark";
-        "@FZF_LIGHT_FILE@" = "${theme.paths.fzfDir}/cozybox-light";
         "@GHOSTTY_DIR@" = theme.paths.ghosttyDir;
         "@GHOSTTY_CURRENT_FILE@" = theme.paths.ghosttyCurrentFile;
-        "@GHOSTTY_DARK_FILE@" = "${theme.paths.ghosttyDir}/cozybox-dark";
-        "@GHOSTTY_LIGHT_FILE@" = "${theme.paths.ghosttyDir}/cozybox-light";
         "@TMUX_DIR@" = theme.paths.tmuxDir;
         "@TMUX_CURRENT_FILE@" = theme.paths.tmuxCurrentFile;
-        "@TMUX_DARK_FILE@" = "${tmuxConfigs.dark}";
-        "@TMUX_LIGHT_FILE@" = "${tmuxConfigs.light}";
         "@TMUX_CONFIG@" = "${config.xdg.configHome}/tmux/tmux.conf";
         "@LAZYGIT_DIR@" = theme.paths.lazygitDir;
         "@LAZYGIT_CURRENT_FILE@" = theme.paths.lazygitCurrentFile;
-        "@LAZYGIT_DARK_FILE@" = "${theme.paths.lazygitDir}/config-dark.yml";
-        "@LAZYGIT_LIGHT_FILE@" = "${theme.paths.lazygitDir}/config-light.yml";
-        "@LAZYGIT_DARWIN_DIR@" = "${config.home.homeDirectory}/Library/Application Support/lazygit";
-        "@LAZYGIT_DARWIN_FILE@" = "${config.home.homeDirectory}/Library/Application Support/lazygit/config.yml";
-        "@LAZYGIT_DARWIN_DARK_FILE@" = "${config.home.homeDirectory}/Library/Application Support/lazygit/config-dark.yml";
-        "@LAZYGIT_DARWIN_LIGHT_FILE@" = "${config.home.homeDirectory}/Library/Application Support/lazygit/config-light.yml";
+        "@LAZYGIT_DARWIN_DIR@" = lazygitDarwinDir;
+        "@LAZYGIT_DARWIN_FILE@" = "${lazygitDarwinDir}/config.yml";
         "@WALLPAPER_DIR@" = theme.wallpapers.dir;
-        "@WALLPAPER_DARK_FILE@" = theme.wallpapers.dark;
-        "@WALLPAPER_LIGHT_FILE@" = theme.wallpapers.light;
         "@WALLPAPER_CURRENT_FILE@" = theme.wallpapers.current;
         "@WALLPAPER_STATIC_DARK@" = "${theme.wallpapers.staticDark}";
         "@WALLPAPER_STATIC_LIGHT@" = "${theme.wallpapers.staticLight}";
+        "@THEME_ASSETS_TEXT@" = themeAssetsText;
       };
     };
   };
@@ -166,6 +215,7 @@ in
     darwinPackages
     nettyPackages
     theme
+    themeAssetsText
     tmuxConfigs
     ;
 

scripts/theme.sh

@@ -14,6 +14,8 @@ read_mode() {
   echo "@DEFAULT_MODE@"
 }
 
+@THEME_ASSETS_TEXT@
+
 set_wallpaper() {
   if [[ "$(uname -s)" == "Darwin" ]] && command -v osascript >/dev/null 2>&1; then
     if [[ -f "@WALLPAPER_CURRENT_FILE@" ]]; then
@@ -31,43 +33,18 @@ set_wallpaper() {
 
 link_mode_assets() {
   local mode="$1"
-  local fzf_target
-  local ghostty_target
-  local tmux_target
-  local apple_dark_mode
-
-  case "$mode" in
-    dark)
-      fzf_target="@FZF_DARK_FILE@"
-      ghostty_target="@GHOSTTY_DARK_FILE@"
-      tmux_target="@TMUX_DARK_FILE@"
-      lazygit_target="@LAZYGIT_DARK_FILE@"
-      wallpaper="@WALLPAPER_DARK_FILE@"
-      apple_dark_mode=true
-      ;;
-    light)
-      fzf_target="@FZF_LIGHT_FILE@"
-      ghostty_target="@GHOSTTY_LIGHT_FILE@"
-      tmux_target="@TMUX_LIGHT_FILE@"
-      lazygit_target="@LAZYGIT_LIGHT_FILE@"
-      wallpaper="@WALLPAPER_LIGHT_FILE@"
-      apple_dark_mode=false
-      ;;
-    *)
-      echo "invalid mode: $mode" >&2
-      exit 1
-      ;;
-  esac
+  theme_load_mode_assets "$mode"
+  mode="$THEME_MODE"
 
   mkdir -p "@STATE_DIR@" "@FZF_DIR@" "@GHOSTTY_DIR@" "@TMUX_DIR@" "@LAZYGIT_DIR@" "@WALLPAPER_DIR@"
   printf '%s\n' "$mode" > "@STATE_FILE@"
-  ln -sfn "$fzf_target" "@FZF_CURRENT_FILE@"
-  ln -sfn "$ghostty_target" "@GHOSTTY_CURRENT_FILE@"
-  ln -sfn "$tmux_target" "@TMUX_CURRENT_FILE@"
-  ln -sfn "$lazygit_target" "@LAZYGIT_CURRENT_FILE@"
+  ln -sfn "$THEME_FZF_TARGET" "@FZF_CURRENT_FILE@"
+  ln -sfn "$THEME_GHOSTTY_TARGET" "@GHOSTTY_CURRENT_FILE@"
+  ln -sfn "$THEME_TMUX_TARGET" "@TMUX_CURRENT_FILE@"
+  ln -sfn "$THEME_LAZYGIT_TARGET" "@LAZYGIT_CURRENT_FILE@"
 
-  if [[ -f "$wallpaper" ]]; then
-    ln -sfn "$wallpaper" "@WALLPAPER_CURRENT_FILE@"
+  if [[ -f "$THEME_WALLPAPER" ]]; then
+    ln -sfn "$THEME_WALLPAPER" "@WALLPAPER_CURRENT_FILE@"
   fi
 
   if command -v tmux >/dev/null 2>&1 && tmux start-server >/dev/null 2>&1; then
@@ -76,13 +53,9 @@ link_mode_assets() {
 
   if [[ "$(uname -s)" == "Darwin" ]] && command -v osascript >/dev/null 2>&1; then
     mkdir -p "@LAZYGIT_DARWIN_DIR@"
-    if [[ "$mode" == "dark" ]]; then
-      ln -sfn "@LAZYGIT_DARWIN_DARK_FILE@" "@LAZYGIT_DARWIN_FILE@"
-    else
-      ln -sfn "@LAZYGIT_DARWIN_LIGHT_FILE@" "@LAZYGIT_DARWIN_FILE@"
-    fi
+    ln -sfn "$THEME_DARWIN_LAZYGIT_TARGET" "@LAZYGIT_DARWIN_FILE@"
 
-    osascript -e "tell application \"System Events\" to tell appearance preferences to set dark mode to ${apple_dark_mode}" >/dev/null 2>&1 || true
+    osascript -e "tell application \"System Events\" to tell appearance preferences to set dark mode to ${THEME_APPLE_DARK_MODE}" >/dev/null 2>&1 || true
 
     set_wallpaper