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#![allow(dead_code)]
use crate::extra::read_lines;
use std::path::PathBuf;

pub fn pkgdb_dir() -> Option<PathBuf> {
    if cfg!(target_os = "netbsd") {
        if let Ok(lines) = read_lines("/etc/mk.conf") {
            for line in lines.flatten() {
                if line.starts_with("PKG_DBDIR") {
                    let pkg_db = PathBuf::from(line.split('=').nth(1).unwrap().trim().to_string());
                    if pkg_db.is_dir() {
                        return Some(pkg_db);
                    }
                }

                continue;
            }
        }

        return Some(PathBuf::from("/usr/pkg/pkgdb"));
    }

    None
}

pub fn localbase_dir() -> Option<PathBuf> {
    if cfg!(target_os = "netbsd") {
        if let Ok(lines) = read_lines("/etc/mk.conf") {
            for line in lines.flatten() {
                if line.starts_with("LOCALBASE") {
                    let localbase =
                        PathBuf::from(line.split('=').nth(1).unwrap().trim().to_string());
                    if localbase.is_dir() {
                        return Some(localbase);
                    }
                }

                continue;
            }
        }

        return Some(PathBuf::from("/usr/pkg"));
    }

    None
}

pub fn usr_share_dir() -> Option<PathBuf> {
    if cfg!(target_os = "linux") {
        return Some(PathBuf::from("/usr/share"));
    }

    None
}

pub fn macos_config_dir() -> Option<PathBuf> {
    if cfg!(target_os = "macos") {
        if let Ok(home) = std::env::var("HOME") {
            return Some(PathBuf::from(home).join(".config"));
        }

        return None;
    }

    None
}