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//! A crate with bunch of lazy macros

mod rusty_cute_macros {
    /// Macro to construct subprocess command
    ///
    /// Arguments:
    ///
    ///* ```cmd``` - to specify command name.
    ///
    ///Usage:
    ///
    ///* ```exec_cmd!(cmd=>"cmd_name", [arg1, arg2, ..., argN]) ```
    #[macro_export]
    macro_rules! cmd {
        (cmd=>$cmd:expr, $($arg:expr),*) => { std::process::Command::new($cmd)$(.arg($arg))* }
    }

    /// Macro to exectute subprocess silently.
    ///
    /// All output will be redirected to null.
    ///
    /// Arguments:
    ///
    ///* ```cmd``` - to specify command name.
    ///
    ///Usage:
    ///
    ///* ```exec_cmd!(cmd=>"cmd_name", [arg1, arg2, ..., argN]) ```
    ///
    ///Returns status code
    #[macro_export]
    macro_rules! exec_silent_cmd {
        (cmd=>$cmd:expr, $($arg:expr),*) => { std::process::Command::new($cmd)
                                                                     .stderr(std::process::Stdio::null())
                                                                     .stdout(std::process::Stdio::null())
                                                                     $(.arg($arg))*
                                                                     .status().unwrap() }
    }

    /// Macro to check if given path/string belongs to file.
    ///
    /// Returns false if no such file exists or cannot access it.
    #[macro_export]
    macro_rules! is_file {
        ($path:expr) => { std::fs::metadata($path).ok().map_or(false, |data| data.is_file()) }
    }

    /// Macro to check if given path/string belongs to directory.
    ///
    /// Returns false if no such directory exists or cannot access it.
    #[macro_export]
    macro_rules! is_dir {
        ($path:expr) => { std::fs::metadata($path).ok().map_or(false, |data| data.is_dir()) }
    }

    ///Trace macro like ```println```
    ///
    ///It uses ```format_args!``` for creating formatted string from passed arguments.
    ///
    ///Prints with the following format: ```file!:line! - [type:] [Message]```
    #[macro_export]
    macro_rules! trace {
        ($($arg:tt)+) => {{ println!("{}", format_args!("{}:{} - {}", file!(), line!(), format_args!($($arg)+))); }};
    }
}