not there yet but has potential

old_src/core/paths.rs

@@ -0,0 +1,35 @@
+use std::{env, path::PathBuf};
+
+pub fn home_dir() -> Option<PathBuf> {
+    env::var_os("HOME").map(PathBuf::from)
+}
+
+pub fn config_dir() -> Option<PathBuf> {
+    // XDG first, fallback to ~/.config
+    if let Some(p) = env::var_os("XDG_CONFIG_HOME").map(PathBuf::from) {
+        Some(p)
+    } else {
+        home_dir().map(|h| h.join(".config"))
+    }
+}
+
+pub fn cache_dir() -> Option<PathBuf> {
+    // XDG first, fallback to ~/.cache
+    if let Some(p) = env::var_os("XDG_CACHE_HOME").map(PathBuf::from) {
+        Some(p)
+    } else {
+        home_dir().map(|h| h.join(".cache"))
+    }
+}
+
+pub fn app_config_dir() -> Option<PathBuf> {
+    config_dir().map(|d| d.join("cj-jftui"))
+}
+
+pub fn app_cache_dir() -> Option<PathBuf> {
+    cache_dir().map(|d| d.join("cj-jftui"))
+}
+
+pub fn posters_cache_dir() -> Option<PathBuf> {
+    app_cache_dir().map(|d| d.join("posters"))
+}