feat: generate dynamic schemes

src/caelestia/utils/paths.py

@@ -1,16 +1,33 @@
+import hashlib
 import os
 from pathlib import Path
 
 config_dir = Path(os.getenv("XDG_CONFIG_HOME", Path.home() / ".config"))
 data_dir = Path(os.getenv("XDG_DATA_HOME", Path.home() / ".local/share"))
 state_dir = Path(os.getenv("XDG_STATE_HOME", Path.home() / ".local/state"))
+cache_dir = Path(os.getenv("XDG_CACHE_HOME", Path.home() / ".cache"))
 
 c_config_dir = config_dir / "caelestia"
 c_data_dir = data_dir / "caelestia"
 c_state_dir = state_dir / "caelestia"
+c_cache_dir = cache_dir / "caelestia"
 
 cli_data_dir = Path(__file__).parent.parent / "data"
 templates_dir = cli_data_dir / "templates"
 
 scheme_path = c_state_dir / "scheme.json"
-scheme_data_path = cli_data_dir / "schemes"
+scheme_data_dir = cli_data_dir / "schemes"
+scheme_cache_dir = c_cache_dir / "schemes"
+
+last_wallpaper_path = c_state_dir / "wallpaper/last.txt"
+wallpaper_thumbnail_path = c_state_dir / "wallpaper/thumbnail.jpg"
+
+
+def compute_hash(path: str) -> str:
+    sha = hashlib.sha256()
+
+    with open(path, "rb") as f:
+        while chunk := f.read(8192):
+            sha.update(chunk)
+
+    return sha.hexdigest()