use std::io::Result;
use crate::configuration::Configuration;
use std::process::{Command, Stdio};

const COMMAND: &str = "rsync";

pub struct Publish;

impl Publish {
    pub fn new() -> Self {
        Publish
    }
}

impl super::Command for Publish {
    fn before_dependencies(&self) -> Vec<Box<dyn super::Command>> {
        vec![]
    }

    fn execute(&self, input: Option<&String>, configuration: &Configuration, _: &String) -> Result<()> {

        let input = input.expect("You must provide a location to publish the blog");

        Command::new(COMMAND)
            .arg("--version")
            .stdout(Stdio::null())
            .stderr(Stdio::null())
            .status()
            .expect("Publishing requires rsync");


        Command::new(COMMAND)
            .arg("-r")
            .arg(format!("{}/", &configuration.blog_output_directory.display()))
            .arg(input.as_str())
            .stdout(Stdio::null())
            .stderr(Stdio::null())
            .status()
            .expect("Publishing requires rsync");
        return Ok(())
    }

    fn after_dependencies(&self) -> Vec<Box<dyn super::Command>> {
        vec![]
    }

    fn command(&self) -> &'static str {
        "publish"
    }

    fn help(&self) -> &'static str {
        "<destination>\t\tPublishes the blog to a remote host"
    }
}