pub mod player;
pub mod layout;
pub mod input;
pub mod inventory;
pub mod ui;
#[cfg(test)]
mod tests;

use bevy::prelude::*;
use leafwing_input_manager::prelude::*;
use serde::{Deserialize, Serialize};

pub struct ExpeditionPlugin;

#[derive(Actionlike, PartialEq, Eq, Hash, Debug, Clone, Reflect, Serialize, Deserialize)]
pub enum InputAction {
    #[actionlike(Axis)]
    Move,
    ToggleInventory,
    Interact,
}

#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Default, States)]
pub enum GameState {
    #[default]
    Running,
    Inventory,
}

impl InputAction {
    pub fn default_input_map() -> InputMap<Self> {
        let input_map = InputMap::default()
            .with_axis(Self::Move, VirtualAxis::ad())
            .with_axis(Self::Move, GamepadAxis::LeftStickX)
            .with(Self::ToggleInventory, KeyCode::KeyI)
            .with(Self::ToggleInventory, GamepadButton::Select)
            .with(Self::Interact, KeyCode::KeyE)
            .with(Self::Interact, GamepadButton::East);
        input_map
    }
}

pub fn insert_entity_name(names: Query<(Entity, &mut Name), Added<Name>>) {
    for (entity, mut name) in names {
        name.mutate(|name| name.insert_str(0, format!("{entity}: ").as_str()));
    }
}

fn camera_bundle() -> impl Bundle {
    (
        Camera2d,
        Camera {
            clear_color: ClearColorConfig::Custom(Color::hsl(0.02, 0.67, 0.65)),
            ..default()
        },
        Projection::Orthographic(OrthographicProjection {
            scaling_mode: bevy::camera::ScalingMode::FixedVertical {
                viewport_height: 384.,
            },
            scale: 1.,
            ..OrthographicProjection::default_2d()
        }),
        Name::new("Camera2d"),
    )
}

fn setup_global(mut commands: Commands) {
    commands.spawn(camera_bundle());
    commands.spawn(ui::UiRoot::new());
}

impl Plugin for ExpeditionPlugin {
    fn build(&self, app: &mut App) {
        app.add_plugins(input::InputAssetPlugin::<InputAction>::default())
            .init_state::<GameState>()
            .insert_resource(ui::WindowSize::default())
            .add_systems(Startup, (player::setup_player, setup_global))
            .add_systems(Update, (
                player::handle_input,
                ui::update_window_size,
                insert_entity_name,
            ))
            .add_systems(OnEnter(GameState::Inventory), inventory::ui::setup_ui_inventory)
            .add_systems(OnExit(GameState::Inventory), inventory::ui::clear_ui_inventory)
            .register_type::<inventory::Inventory>()
            .register_type::<inventory::ActiveInventory>()
            .register_type::<inventory::item::Item>()
            .register_type::<inventory::ui::UiItem>()
            .register_type::<inventory::ui::UiInventorySlot>()
            .register_type::<inventory::ui::UiInventory>();
    }
}