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"))
}