/*

`edge init`: scaffold a ready-to-run project (entry script, host page, manifest).

*/

use anyhow::{bail, Context, Result};

use std::fs;

use std::path::Path;

const MAIN_PY: &str = "print(\"hello from edge python\")\n";

const PACKAGES_JSON: &str = "{}\n";

const INDEX_HTML: &str = include_str!("templates/scaffold.html");

fn index_html(title: &str) -> String {

INDEX_HTML.replace("__EDGE_TITLE__", title)

}

pub fn run(name: Option<&str>, bare: bool) -> Result<()> {

let dir = name.unwrap_or(".");

let root = Path::new(dir);

if dir != "." {

if root.exists() {

bail!("'{dir}' already exists");

}

fs::create_dir_all(root).with_context(|| format!("creating {dir}"))?;

}

fs::write(root.join("main.py"), MAIN_PY)?;

fs::write(root.join("packages.json"), PACKAGES_JSON)?;

let mut items = vec![];

if !bare {

let title = if dir == "." { "edge app" } else { dir };

fs::write(root.join("index.html"), index_html(title))?;

items.push("index.html");

}

items.push("main.py");

items.push("packages.json");

let next = if dir == "." {

"edge serve".to_string()

} else {

format!("cd {dir} && edge serve")

};

crate::ui::scaffolded(dir, &items, &next);

Ok(())

}