use bevy::prelude::*;
use bevy_yarnspinner::prelude::*;
use bevy_yarnspinner_example_dialogue_view::prelude::*;

fn main() {
    let mut app = App::new();
    app.add_plugins((
        DefaultPlugins,
        // Register the Yarn Spinner plugin using its default settings, which will look for Yarn files in the "dialogue" folder.
        // If this app should support Wasm or Android, we cannot load files without specifying them, so use the following instead.
        // YarnSpinnerPlugin::with_yarn_source(YarnFileSource::file("dialogue/hello_world.yarn")),
        YarnSpinnerPlugin::new(),
        // Initialize the bundled example UI
        ExampleYarnSpinnerDialogueViewPlugin::new(),
    ))
    .add_systems(Startup, setup_camera)
    .add_systems(
        Update,
        // Spawn the dialogue runner once the Yarn project has finished compiling
        spawn_dialogue_runner.run_if(resource_added::<YarnProject>()),
    )
    .run();
}

fn setup_camera(mut commands: Commands) {
    commands.spawn(Camera2dBundle::default());
}

fn spawn_dialogue_runner(mut commands: Commands, project: Res<YarnProject>) {
    // Create a dialogue runner from the project.
    let mut dialogue_runner = project.create_dialogue_runner();
    // Immediately start showing the dialogue to the player
    dialogue_runner.start_node("HelloWorld");
    commands.spawn(dialogue_runner);
}