//! ----------------------------------------------------
//! ----------------------------------------------------

//
// PRIVATE
//

const App = @import("app");
const Zla = @import("zla");

//
// PUBLIC
//

/// ----------------------------------------------------
/// ----------------------------------------------------
pub const plugin: App.plugin.Plugin = .{
    .name = "LUA",
    .build = build,
};

/// ----------------------------------------------------
/// ----------------------------------------------------
pub fn build(
    _: *App.plugin.Plugin,
    app: *App,
) !void {
    // --- LIFETIME ---
    try app.schedules.addMany(App.stage.init, &.{init});
    try app.schedules.addMany(App.stage.deinit, &.{ deinit, lua_deinit });

    // --- EXEC ---
    try app.schedules.addManyAfter(App.stage.init, App.stage.init, &.{lua_init});

    // --- FRAME ---
    try app.schedules.add(App.stage.inputs, lua_inputs);
    try app.schedules.add(App.stage.update, lua_update);
    try app.schedules.add(App.stage.draw, lua_draw);
}

/// ----------------------------------------------------
/// ----------------------------------------------------
fn init(app: *App) !void {
    // --- ZLA ---
    _ = try app.resources.getOrSet(
        try Zla.init(app.alloc),
    );
}

/// ----------------------------------------------------
/// ----------------------------------------------------
fn deinit(app: *App) !void {
    // --- # ---
    const res = try app.resources.getMany(struct {
        zla: *Zla,
    });

    // --- # ---
    res.zla.deinit();
}

/// ----------------------------------------------------
/// ----------------------------------------------------
fn lua_init(app: *App) !void {
    const res = try app.resources.getMany(struct { zla: *Zla });

    try res.zla.execFromFile(void, "src/scripts/main.lua");
    try res.zla.call(void, "init", .{});
}

/// ----------------------------------------------------
/// ----------------------------------------------------
fn lua_deinit(app: *App) !void {
    const res = try app.resources.getMany(struct { zla: *Zla });
    try res.zla.call(void, "deinit", .{});
}

/// ----------------------------------------------------
/// ----------------------------------------------------
fn lua_inputs(app: *App) !void {
    const res = try app.resources.getMany(struct { zla: *Zla });
    try res.zla.call(void, "inputs", .{});
}

/// ----------------------------------------------------
/// ----------------------------------------------------
fn lua_update(app: *App) !void {
    const res = try app.resources.getMany(struct { zla: *Zla });
    try res.zla.call(void, "update", .{});
}

/// ----------------------------------------------------
/// ----------------------------------------------------
fn lua_draw(app: *App) !void {
    const res = try app.resources.getMany(struct { zla: *Zla });
    try res.zla.call(void, "draw", .{});
}