From 08297376a85a1719518507e54fca9de954d2376a Mon Sep 17 00:00:00 2001
From: Petri Hienonen <petri.hienonen@gmail.com>
Date: Thu, 23 May 2024 13:56:00 +0300
Subject: Agenix configuration

---
 home/wallpapers/default.nix | 87 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 home/wallpapers/default.nix

(limited to 'home/wallpapers/default.nix')

diff --git a/home/wallpapers/default.nix b/home/wallpapers/default.nix
new file mode 100644
index 0000000..458f711
--- /dev/null
+++ b/home/wallpapers/default.nix
@@ -0,0 +1,87 @@
+{ config, pkgs, ... }:
+let
+  wallpaperScript = pkgs.writeShellScript "update-wallpaper.sh" ''
+    set -euo pipefail
+
+    if [ -z "''${UNSPLASH_ACCESS_KEY:-}" ]; then
+      echo "Error: UNSPLASH_ACCESS_KEY is not set"
+      exit 1
+    fi
+
+    WALLPAPER_DIR="$HOME/.local/share/wallpapers"
+    "${pkgs.coreutils}/bin/mkdir" -p "$WALLPAPER_DIR"
+
+    TMPFILE="$("${pkgs.coreutils}/bin/mktemp")"
+
+    echo "Fetching random Unsplash image URL..."
+    URL=$("${pkgs.curl}/bin/curl" -s \
+      "https://api.unsplash.com/photos/random?query=nature,landscape&orientation=landscape&client_id=$UNSPLASH_ACCESS_KEY" \
+      | "${pkgs.jq}/bin/jq" -r '.urls.raw')
+
+    if [ -z "$URL" ] || [ "$URL" = "null" ]; then
+      echo "Error: could not retrieve Unsplash URL"
+      exit 1
+    fi
+
+    EXT=$("${pkgs.coreutils}/bin/basename" "$URL" | "${pkgs.gawk}/bin/awk" -F. '{print tolower($NF)}')
+    [[ "$EXT" =~ ^(jpg|jpeg|png)$ ]] || EXT="jpg"
+
+    TMPFILE_EXT="$TMPFILE.$EXT"
+    OUTFILE="$WALLPAPER_DIR/$("${pkgs.coreutils}/bin/date" +%Y%m%d-%H%M%S).webp"
+
+    echo "Downloading original Unsplash image..."
+    "${pkgs.curl}/bin/curl" -L --fail --retry 3 -o "$TMPFILE_EXT" "$URL"
+
+    echo "Converting to WebP..."
+    "${pkgs.libwebp}/bin/cwebp" -mt -preset photo -hint photo -metadata all -pass 10 -quiet -q 80 -m 6 "$TMPFILE_EXT" -o "$OUTFILE"
+    "${pkgs.coreutils}/bin/rm" -f "$TMPFILE_EXT"
+
+    echo "Selecting a wallpaper different from current..."
+    CURRENT_WALL=$("${pkgs.hyprland}/bin/hyprctl" hyprpaper listloaded | "${pkgs.gawk}/bin/awk" '{print $NF}' || true)
+    NEW_WALL=$("${pkgs.findutils}/bin/find" "$WALLPAPER_DIR" -type f ! -name "$("${pkgs.coreutils}/bin/basename" "$CURRENT_WALL")" | "${pkgs.coreutils}/bin/shuf" -n 1)
+
+    echo "Reloading hyprpaper with: $NEW_WALL"
+    "${pkgs.hyprland}/bin/hyprctl" hyprpaper reload ,"$NEW_WALL"
+  '';
+in
+{
+  # Ensure required packages are available
+  home.packages = with pkgs; [
+    coreutils
+    curl
+    findutils
+    hyprland
+    jq
+    libwebp
+  ];
+
+  systemd.user.services."wallpaper-fetch" = {
+    Unit = {
+      Description = "Fetch and update 4K nature wallpaper for Hyprpaper";
+      After = [ "graphical-session.target" ];
+    };
+
+    Service = {
+      Environment = [
+        "UNSPLASH_ACCESS_KEY=$(${pkgs.coreutils}/bin/cat ${config.age.secrets.unsplash_access_key.path})"
+      ];
+      Type = "oneshot";
+      ExecStart = "${wallpaperScript}";
+    };
+  };
+
+  # Timer to run periodically (every 3 hours)
+  systemd.user.timers."wallpaper-fetch" = {
+    Unit = {
+      Description = "Periodic Unsplash wallpaper fetch timer";
+    };
+    Timer = {
+      OnBootSec = "2min";
+      OnUnitActiveSec = "3h";
+      Persistent = true;
+    };
+    Install = {
+      WantedBy = [ "timers.target" ];
+    };
+  };
+}
-- 
cgit v1.2.3-70-g09d2