#!/usr/bin/env rust-script
//! ```cargo
//! [dependencies]
//! home = "0.5.5"
//! ```

use std::{
  fs,
  process::{Command, Stdio},
};

fn main() {
  let os = judge_os();
  println!("os: {os:?}");
  let shell = judge_shell();
  println!("shell: {shell:?}");

  match Command::new("cargo").arg("b").status() {
    Ok(_) => println!("cargo build success"),
    Err(e) => {
      println!("cargo build failed {e:?}");
      return;
    }
  }

  let home = home::home_dir().unwrap();

  let source = match os {
    Os::Linux => "./target/debug/easychangedirectory",
    Os::Windows => "./target/debug/easychangedirectory.exe",
  };

  let destination = match os {
    Os::Linux => home.join(".cargo/bin/easychangedirectory"),
    Os::Windows => home.join(".cargo/bin/easychangedirectory.exe"),
  };

  match fs::copy(source, destination) {
    Ok(_) => println!("copy success"),
    Err(e) => {
      println!("copy failed: {e:?}");
      return;
    }
  }
}

#[allow(unused)]
#[derive(Debug)]
enum Shell {
  Bash,
  PowerShell,
}

fn judge_shell() -> Shell {
  match Command::new("echo").arg("").stdout(Stdio::null()).status() {
    Ok(_) => return Shell::Bash,
    Err(_) => return Shell::PowerShell,
  };
}

#[allow(unused)]
#[derive(Debug)]
enum Os {
  Linux,
  Windows,
}

fn judge_os() -> Os {
  #[cfg(target_os = "linux")]
  return Os::Linux;
  #[cfg(target_os = "windows")]
  return Os::Windows;
}