#include "HudScript.h"
#include "HudConfig.h"

#include "../Config.h"
#include "../Events.h"

#include <climits>

#include <crepe/api/Text.h>
#include <crepe/api/Transform.h>
#include <crepe/manager/SaveManager.h>

using namespace crepe;
using namespace std;

void HudScript::init() {
	savemgr = &this->get_save_manager();
	savemgr->set(TOTAL_COINS_RUN, 0);
	Text & txt = this->get_components_by_name<Text>(HUD_BEST).front();
	string record
		= BEST + to_string(savemgr->get<int>(DISTANCE_GAME, 0).get()) + DISTANCE_UNIT;
	txt.text = record;
	txt.dimensions = {BEST_CHAR_WIDTH * record.size(), (BEST_CHAR_WIDTH) * 2};
	txt.offset
		= TOP_LEFT + FONTOFFSET + BEST_OFFSET + vec2 {record.size() * BEST_CHAR_WIDTH / 2, 0};

	this->subscribe<GetCoinEvent>([this](const GetCoinEvent e) -> bool {
		return this->get_coin(e);
	});
	this->subscribe<KeyPressEvent>([this](const KeyPressEvent & ev) -> bool {
		return this->toggle_fps(ev);
	});
	this->subscribe<EndGameEvent>([this](const EndGameEvent e) -> bool {
		return this->save();
	});
}

bool HudScript::toggle_fps(crepe::KeyPressEvent ev) {
	if (ev.key != Keycode::END) return false;
	Text & txt_fps = this->get_components_by_name<Text>(HUD_FPS).front();
	this->show_fps = !this->show_fps;
	if (this->show_fps) {
		txt_fps.active = true;
	} else {
		txt_fps.active = false;
	}
	return true;
}

void HudScript::frame_update(crepe::duration_t dt) {

	// Distance
	Text & txt_dt = this->get_components_by_name<Text>(HUD_DISTANCE).front();
	Transform & tf = this->get_components_by_name<Transform>(PLAYER_NAME).front();
	string distance
		= to_string(static_cast<int>(tf.position.x / STEP_SIZE_DISTANCE)) + DISTANCE_UNIT;
	this->distance_st = distance;
	txt_dt.text = distance;
	txt_dt.dimensions = {DISTANCE_CHAR_WIDTH * distance.size(), (DISTANCE_CHAR_WIDTH) * 2};
	txt_dt.offset
		= TOP_LEFT + FONTOFFSET + vec2 {distance.size() * DISTANCE_CHAR_WIDTH / 2, 0};

	// Coins
	Text & txt_co = this->get_components_by_name<Text>(HUD_COINS).front();
	string amount_of_coins = to_string(this->coin_amount);
	this->coin_amount_st = amount_of_coins;
	txt_co.text = amount_of_coins;
	txt_co.dimensions = {COINS_CHAR_WIDTH * amount_of_coins.size(), (COINS_CHAR_WIDTH) * 2};
	txt_co.offset = TOP_LEFT + FONTOFFSET + COINS_OFFSET
					+ vec2 {amount_of_coins.size() * COINS_CHAR_WIDTH / 2, 0};

	// FPS
	Text & txt_fps = this->get_components_by_name<Text>(HUD_FPS).front();
	float fps = this->get_loop_timer().get_fps();
	string fps_amount = to_string(this->get_loop_timer().get_fps());
	txt_fps.text = fps_amount;
	txt_fps.dimensions = {FPS_CHAR_WIDTH * fps_amount.size(), (FPS_CHAR_WIDTH) * 2};
	txt_fps.offset = TOP_LEFT + FONTOFFSET + FPS_OFFSET
					 + vec2 {fps_amount.size() * FPS_CHAR_WIDTH / 2, 0};
	if (fps >= 30) txt_fps.data.text_color = Color::YELLOW;
	if (fps >= 50) txt_fps.data.text_color = Color::GREEN;
	if (fps < 30) txt_fps.data.text_color = Color::RED;
}

bool HudScript::get_coin(const GetCoinEvent e) {
	this->coin_amount = e.amount_of_coins;
	return true;
}

bool HudScript::save() {
	SaveManager & savemgr = this->get_save_manager();
	savemgr.set(TOTAL_COINS_RUN, this->coin_amount);
	savemgr.set(DISTANCE_RUN, this->distance_st);
	return false;
}