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use std::env;

use anyhow::Result;
use clap::Args;
use fluent_templates::Loader;
use self_update::{backends::github, cargo_crate_version};
use url::Url;

use crate::{LANG_ID, LOCALES};

#[derive(Debug, Args)]
#[command(about = LOCALES.lookup(&LANG_ID, "update_command").expect("`update_command` does not exists"))]
pub struct Update {
    #[arg(short, long, num_args = 0..=1, default_missing_value = "http://127.0.0.1:8080",
        help = LOCALES.lookup(&LANG_ID, "proxy").expect("`proxy` does not exists"))]
    pub proxy: Option<Url>,
}

pub fn execute(config: Update) -> Result<()> {
    if let Some(proxy) = config.proxy {
        env::set_var("HTTP_PROXY", proxy.to_string());
        env::set_var("HTTPS_PROXY", proxy.to_string());
    }

    github::Update::configure()
        .repo_owner("novel-rs")
        .repo_name("cli")
        .bin_name(env!("CARGO_PKG_NAME"))
        .show_download_progress(true)
        .current_version(cargo_crate_version!())
        .build()?
        .update()?;

    Ok(())
}