add bing wallpaper for niri

home/tiling/wallpaper/bing-wallpaper.nix

@@ -0,0 +1,87 @@
+{ pkgs, config, ... }:
+
+let
+  bingWallpaperScript = pkgs.writeShellScript "bing-wallpaper" ''
+    set -euo pipefail
+
+    # Configuration
+    SIZE="1920x1080"
+    MARKET="en-US"
+    OUTPUT_PATH="''${XDG_DATA_HOME:-$HOME/.local/share}/dailywallpaper.jpg"
+    DAY="0"
+
+    # API configuration
+    BING="https://www.bing.com"
+    API="/HPImageArchive.aspx"
+    REQ_IMG="$BING$API?format=js&idx=$DAY&mkt=$MARKET&n=1"
+
+    echo "Pinging Bing API..."
+
+    # Fetch API response
+    API_RESP=$(${pkgs.wget}/bin/wget --quiet --output-document=- "$REQ_IMG")
+    if (( $? > 0 )); then
+      echo "Ping failed!"
+      exit 1
+    fi
+
+    # Extract image URL base
+    URL_BASE=$(echo "$API_RESP" | ${pkgs.gnugrep}/bin/grep -oP 'urlbase":"[^"]*' | ${pkgs.coreutils}/bin/cut -d '"' -f 3)
+    REQ_IMG_URL="$BING$URL_BASE\_$SIZE.jpg"
+
+    # Extract title
+    TITLE=$(echo "$API_RESP" | ${pkgs.gnugrep}/bin/grep -oP 'title":"[^"]*' | ${pkgs.coreutils}/bin/cut -d '"' -f 3)
+
+    echo "Bing Image of the day: $TITLE"
+
+    # Check if specific size exists, fallback to default
+    if ! ${pkgs.wget}/bin/wget --quiet --spider --max-redirect 0 "$REQ_IMG_URL"; then
+      REQ_IMG_URL="$BING$(echo "$API_RESP" | ${pkgs.gnugrep}/bin/grep -oP 'url":"[^"]*' | ${pkgs.coreutils}/bin/cut -d '"' -f 3)"
+    fi
+
+    echo "$REQ_IMG_URL"
+
+    # Extract filename
+    IMG_NAME="''${REQ_IMG_URL##*/}"
+    IMG_NAME="''${IMG_NAME#th?id=OHR.}"
+    IMG_NAME="''${IMG_NAME%&rf=*}"
+
+    echo "$IMG_NAME"
+
+    # Create parent directory
+    ${pkgs.coreutils}/bin/mkdir -p "$(${pkgs.coreutils}/bin/dirname "$OUTPUT_PATH")"
+
+    # Download image, overwrite if exists
+    ${pkgs.wget}/bin/wget --quiet --output-document="$OUTPUT_PATH" "$REQ_IMG_URL"
+
+    echo "Wallpaper saved to $OUTPUT_PATH"
+
+    # Send notification
+    if command -v ${pkgs.libnotify}/bin/notify-send &> /dev/null; then
+      ${pkgs.libnotify}/bin/notify-send -u low -t 10 -i preferences-desktop-wallpaper \
+        "Bing Wallpaper of the Day" "$TITLE"
+    fi
+
+    echo "Wallpaper downloaded successfully."
+  '';
+in
+{
+  systemd.user.services.bing-wallpaper = {
+    Unit = {
+      Description = "Download and set Bing wallpaper of the day";
+      After = [
+        "network-online.target"
+        "niri.service"
+      ];
+      Wants = [ "network-online.target" ];
+    };
+
+    Service = {
+      Type = "oneshot";
+      ExecStart = "${bingWallpaperScript}";
+    };
+
+    Install = {
+      WantedBy = [ "niri.service" ];
+    };
+  };
+}