#import "modules/std.sx";
#import "modules/sdl3.sx";
#import "ui/types.sx";

EventType :: enum {
    none;
    mouse_down;
    mouse_up;
    mouse_moved;
    mouse_wheel;
    key_down;
    key_up;
    text_input;
    window_resize;
    quit;
}

MouseButton :: enum {
    none;
    left;
    middle;
    right;
}

Event :: struct {
    type: EventType;
    position: Point;
    delta: Point;
    button: MouseButton;
    key: u32;
    text: string;
    timestamp: u64;

    make :: (type: EventType) -> Event {
        e : Event = ---;
        memset(@e, 0, size_of(Event));
        e.type = type;
        e;
    }
}

// Translate SDL_Event → our Event type
translate_sdl_event :: (sdl: *SDL_Event) -> Event {
    if sdl.* == {
        case .quit: {
            return Event.make(.quit);
        }
        case .key_down: (data) {
            e := Event.make(.key_down);
            e.key = xx data.key;
            e.timestamp = data.timestamp;
            return e;
        }
        case .key_up: (data) {
            e := Event.make(.key_up);
            e.key = xx data.key;
            e.timestamp = data.timestamp;
            return e;
        }
        case .mouse_motion: (data) {
            e := Event.make(.mouse_moved);
            e.position = Point.{ x = data.x, y = data.y };
            e.delta = Point.{ x = data.xrel, y = data.yrel };
            e.timestamp = data.timestamp;
            return e;
        }
        case .mouse_button_down: (data) {
            e := Event.make(.mouse_down);
            e.position = Point.{ x = data.x, y = data.y };
            e.button = if data.button == {
                case 1: .left;
                case 2: .middle;
                case 3: .right;
                else: .none;
            };
            e.timestamp = data.timestamp;
            return e;
        }
        case .mouse_button_up: (data) {
            e := Event.make(.mouse_up);
            e.position = Point.{ x = data.x, y = data.y };
            e.button = if data.button == {
                case 1: .left;
                case 2: .middle;
                case 3: .right;
                else: .none;
            };
            e.timestamp = data.timestamp;
            return e;
        }
        case .mouse_wheel: (data) {
            e := Event.make(.mouse_wheel);
            e.delta = Point.{ x = data.x, y = data.y };
            e.position = Point.{ x = data.mouse_x, y = data.mouse_y };
            e.timestamp = data.timestamp;
            return e;
        }
        case .window_resized: (data) {
            e := Event.make(.window_resize);
            e.position = Point.{ x = xx data.data1, y = xx data.data2 };
            e.timestamp = data.timestamp;
            return e;
        }
    }
    Event.make(.none);
}