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// Copyleft (ɔ) 2021-2021 The Whirlsplash Collective
// SPDX-License-Identifier: GPL-3.0-only
use std::{io::Write, str::FromStr};
use sysinfo::SystemExt;
use crate::config::Config;
const FILES: [&str; 2] = ["README.rst", "Whirl.toml"];
pub enum BuiltIn {
Echo,
History,
Exit,
Null,
Help,
Ls,
Cat,
Config,
Fetch,
}
impl FromStr for BuiltIn {
type Err = ();
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"echo" => Ok(BuiltIn::Echo),
"history" => Ok(BuiltIn::History),
"exit" => Ok(BuiltIn::Exit),
"null" => Ok(BuiltIn::Null),
"help" => Ok(BuiltIn::Help),
"ls" => Ok(BuiltIn::Ls),
"cat" => Ok(BuiltIn::Cat),
"config" => Ok(BuiltIn::Config),
"fetch" => Ok(BuiltIn::Fetch),
_ => Err(()),
}
}
}
pub fn builtin_echo(args: &[String]) -> i32 {
println!("{}", args.join(" "));
0
}
pub fn builtin_history(history: Vec<String>) -> i32 {
for (index, cmd) in history.iter().enumerate() {
println!("{} {}", index, cmd.trim());
}
0
}
pub fn builtin_help() -> i32 {
println!("echo - display a line of predefined text");
println!("history - display the command history");
println!("exit - end the process");
println!("ls - display the present files");
println!("cat - display the contents of a present file");
println!("config - manipulate the configuration");
println!("help - you are here");
println!("fetch - a neofetch like utility loosely based on rfetch");
0
}
pub fn builtin_ls() -> i32 {
for file in &FILES {
print!("{} ", file);
}
println!();
0
}
pub async fn builtin_cat(args: &[String]) -> i32 {
let file;
if let Some(file_name) = args.get(0) {
file = file_name.to_string();
} else {
return 0;
};
match file.as_str() {
"README.rst" => {
let mut easy = curl::easy::Easy::new();
easy
.url("https://raw.githubusercontent.com/Whirlsplash/whirl/develop/README.rst")
.unwrap();
let mut transfer = easy.transfer();
transfer
.write_function(|data| {
std::io::stdout().write_all(data).unwrap();
Ok(data.len())
})
.unwrap();
transfer.perform().unwrap();
}
"Whirl.toml" => {
colour::red_ln!("NOTE: This is just a wrapper for `config show`.");
println!("{:#?}", Config::get());
}
_ => println!("/cat: {}: no such file or directory", file),
}
0
}
pub fn builtin_config(args: &[String]) -> i32 {
match args.get(0) {
Some(sub) =>
match sub.as_str() {
"show" => println!("{:#?}", Config::get()),
"help" | "--help" | "-h" => {
println!("show - display the current configuration");
println!("help - you are here");
println!("refresh - reload the configuration file");
}
"refresh" => Config::refresh(),
_ => println!("invalid arguments provided"),
},
None => println!("invalid amount arguments provided"),
}
0
}
pub fn builtin_fetch() -> i32 {
// rfetch: https://github.com/Mangeshrex/rfetch
let mut sys = sysinfo::System::new();
sys.refresh_processes();
println!(" ");
println!(" .-. os {}", env!("CARGO_PKG_NAME"));
println!(" oo| ker {}", env!("CARGO_PKG_VERSION"));
println!(" / '\\ sh /wsh");
println!(" (\\_;/) up null");
println!(" ");
0
}
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