use anyhow::{Context, Result};
use mlua::Lua;
use yazi_boot::BOOT;
use yazi_macro::plugin_preset as preset;
use yazi_shared::RoCell;

use crate::runtime::Runtime;

pub static LUA: RoCell<Lua> = RoCell::new();

pub(super) fn init_lua() -> Result<()> {
	LUA.init(Lua::new());

	stage_1(&LUA).context("Lua setup failed")?;
	stage_2(&LUA).context("Lua runtime failed")?;
	Ok(())
}

fn stage_1(lua: &'static Lua) -> Result<()> {
	lua.set_named_registry_value("ir", Runtime::default())?;
	crate::config::Runtime::new(lua).install_manager()?.install_theme()?;

	// Base
	let globals = lua.globals();
	globals.raw_set("ui", crate::elements::compose(lua)?)?;
	globals.raw_set("ya", crate::utils::compose(lua, false)?)?;
	globals.raw_set("fs", crate::fs::compose(lua)?)?;
	globals.raw_set("ps", crate::pubsub::compose(lua)?)?;
	globals.raw_set("rt", crate::config::Runtime::compose(lua)?)?;
	globals.raw_set("th", crate::config::Theme::compose(lua)?)?;

	crate::Error::install(lua)?;
	crate::bindings::Cha::install(lua)?;
	crate::loader::install(lua)?;
	crate::file::pour(lua)?;
	crate::url::pour(lua)?;

	// Addons
	lua.load(preset!("ya")).set_name("ya.lua").exec()?;

	// Components
	lua.load(preset!("components/current")).set_name("current.lua").exec()?;
	lua.load(preset!("components/entity")).set_name("entity.lua").exec()?;
	lua.load(preset!("components/header")).set_name("header.lua").exec()?;
	lua.load(preset!("components/linemode")).set_name("linemode.lua").exec()?;

	lua.load(preset!("components/marker")).set_name("marker.lua").exec()?;
	lua.load(preset!("components/modal")).set_name("modal.lua").exec()?;
	lua.load(preset!("components/parent")).set_name("parent.lua").exec()?;
	lua.load(preset!("components/preview")).set_name("preview.lua").exec()?;
	lua.load(preset!("components/progress")).set_name("progress.lua").exec()?;
	lua.load(preset!("components/rail")).set_name("rail.lua").exec()?;
	lua.load(preset!("components/root")).set_name("root.lua").exec()?;
	lua.load(preset!("components/status")).set_name("status.lua").exec()?;
	lua.load(preset!("components/tab")).set_name("tab.lua").exec()?;

	Ok(())
}

fn stage_2(lua: &'static Lua) -> mlua::Result<()> {
	lua.load(preset!("setup")).set_name("setup.lua").exec()?;
	lua.load(preset!("compat")).set_name("compat.lua").exec()?;

	if let Ok(b) = std::fs::read(BOOT.config_dir.join("init.lua")) {
		lua.load(b).set_name("init.lua").exec()?;
	}

	Ok(())
}