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use Result;
use Runnable;
use std::fs;
use std::process::Command;
use utils::file_name_as_str;

pub mod regular_platform;
pub mod host;
#[cfg(target_os = "macos")]
pub mod ios;

fn strip_runnable(runnable: &Runnable, mut command: Command) -> Result<()> {
    let exe_stripped_name = file_name_as_str(&runnable.exe)?;

    let mut stripped_runnable = runnable.clone();
    stripped_runnable.exe = runnable.exe.parent()
        .map(|it| it.join(format!("{}-stripped", exe_stripped_name)))
        .ok_or(format!("{} is not a valid executable name", &runnable.exe.display()))?;

    // Backup old runnable
    fs::copy(&runnable.exe, &stripped_runnable.exe)?;

    let command = command.arg(&stripped_runnable.exe);
    debug!("Running command {:?}", command);

    let output = command.output()?;
    if !output.status.success() {
        bail!("Error while stripping {}\nError: {}", &stripped_runnable.exe.display(), String::from_utf8(output.stdout)?)
    }

    debug!("{} unstripped size = {} and stripped size = {}",
           runnable.exe.display(),
           fs::metadata(&runnable.exe)?.len(),
           fs::metadata(&stripped_runnable.exe)?.len());
    Ok(())
}