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use std::path::PathBuf;

pub use crate::xdg::user::{
    app_cache_dir, app_config_dir, app_data_dir, app_log_dir, app_temporary_dir,
};

#[inline]
pub fn home_dir() -> PathBuf {
    dirs::home_dir().expect("no home directory")
}

pub mod iri {
    use iref::IriBuf;
    use std::path::Path;

    #[inline]
    pub fn app_cache_dir<P: AsRef<Path>>(prefix: P) -> IriBuf {
        crate::file_path(super::app_cache_dir(prefix))
    }

    #[inline]
    pub fn app_temporary_dir<P: AsRef<Path>>(prefix: P) -> IriBuf {
        crate::file_path(super::app_cache_dir(prefix))
    }

    pub fn resolve(iri: &iref::IriBuf) -> Result<std::path::PathBuf, crate::ResolveError> {
        match iri.scheme().as_str() {
            "file" => Ok(std::path::PathBuf::from(iri.path().as_pct_str().decode())),
            "container" => {
                let mut path = iri.path().as_pct_str().decode();
                if path.starts_with("/") {
                    path = path.chars().skip(1).collect::<String>();
                }
                Ok(super::home_dir().join(path))
            }
            unhandled => Err(crate::ResolveError::InvalidScheme(unhandled.to_string())),
        }
    }
}