#include "file_popup.h"
#include "core/config/engine.h"
#include "core/input/input_event.h"
#include "core/math/math_funcs.h"
#include "scene/main/node.h"
#include "scene/main/viewport.h"
#include "you_done_it/macros.h"

void FilePopup::_bind_methods() {
	BIND_HPROPERTY(Variant::OBJECT, open_position, PROPERTY_HINT_NODE_TYPE, "Node2D");
	ClassDB::bind_method(D_METHOD("request_open"), &self_type::request_open);
	ClassDB::bind_method(D_METHOD("request_close"), &self_type::request_close);
	ClassDB::bind_method(D_METHOD("is_open"), &self_type::is_open);
}

void FilePopup::enter_tree() {
	this->home_position = get_global_transform();
}

void FilePopup::process(double delta) {
	if (!this->open_position) {
		set_process(false);
		return;
	}
	this->animation_progress = Math::move_toward(this->animation_progress, this->desire_open ? 1.0 : 0.0, delta * this->ANIM_SPEED);
	this->set_global_position(this->home_position.get_origin().lerp(this->open_position->get_global_position(), this->animation_progress));
	this->set_global_rotation(Math::lerp_angle(this->home_position.get_rotation(), this->open_position->get_global_rotation(), (float)this->animation_progress));
	if (this->animation_progress == 0.0) {
		set_process(false);
		set_process_unhandled_input(false);
	}
	if (this->animation_progress == 1.0) {
		set_process(false);
	}
}

void FilePopup::unhandled_input(Ref<InputEvent> const &what) {
	Ref<InputEventMouseButton> button{ what };
	if (button.is_valid() && button->is_pressed()) {
		this->desire_open = false;
		set_process(true);
		get_viewport()->set_input_as_handled();
	}
}

void FilePopup::_notification(int what) {
	if (Engine::get_singleton()->is_editor_hint()) {
		return;
	}
	switch (what) {
		default:
			return;
		case NOTIFICATION_ENTER_TREE:
			set_process_unhandled_input(true);
			enter_tree();
			return;
		case NOTIFICATION_PROCESS:
			process(get_process_delta_time());
			return;
	}
}

void FilePopup::request_open() {
	this->desire_open = true;
	set_process_unhandled_input(true);
	set_process(true);
	set_visible(true);
}

void FilePopup::request_close() {
	this->desire_open = false;
}

bool FilePopup::is_open() const {
	return this->animation_progress == 1.0;
}

void FilePopup::set_open_position(Node2D *node) {
	this->open_position = node;
}

Node2D *FilePopup::get_open_position() const {
	return this->open_position;
}