#include "UploadPhotoScreen.h"

#include "../components/Button.h"
#include "../../Minecraft.h"
#include "../../player/LocalPlayer.h"
#include "../../../world/entity/item/TripodCamera.h"
#include "../../../world/level/Level.h"
#include "../../../platform/input/Keyboard.h"
#include "../../renderer/GameRenderer.h"
#include "../../renderer/LevelRenderer.h"

UploadPhotoScreen::UploadPhotoScreen()
: hasAppliedPhotoMode(false),
  oldHideGui(false),
  oldThirdPerson(false),
  oldFixedCamera(false),
  hasOldPose(false),
  oldX(0),
  oldY(0),
  oldZ(0),
  oldYaw(0),
  oldPitch(0),
  photoCameraTarget(NULL),
  photoCameraX(0),
  photoCameraY(0),
  photoCameraZ(0),
  bBack(0)
{
}

UploadPhotoScreen::~UploadPhotoScreen()
{
	restorePhotoMode();
	delete photoCameraTarget;
	delete bBack;
}

void UploadPhotoScreen::init()
{
	applyPhotoMode();

	if (minecraft->useTouchscreen()) {
		bBack = new Touch::TButton(1, "Back");
	} else {
		bBack = new Button(1, "Back");
	}

	buttons.push_back(bBack);
	tabButtons.push_back(bBack);
}

void UploadPhotoScreen::removed()
{
	restorePhotoMode();
}

void UploadPhotoScreen::applyPhotoMode()
{
	if (hasAppliedPhotoMode || !minecraft || !minecraft->gameRenderer) return;

	if (minecraft->player) {
		oldX = minecraft->player->x;
		oldY = minecraft->player->y;
		oldZ = minecraft->player->z;
		oldYaw = minecraft->player->yRot;
		oldPitch = minecraft->player->xRot;
		hasOldPose = true;
	}

	oldHideGui = minecraft->options.getBooleanValue(OPTIONS_HIDEGUI);
	oldThirdPerson = minecraft->options.getBooleanValue(OPTIONS_THIRD_PERSON_VIEW);
	oldFixedCamera = minecraft->options.getBooleanValue(OPTIONS_FIXED_CAMERA);
	Pos spawn = minecraft->level->getSharedSpawnPos();
	photoCameraX = (float) spawn.x;
	photoCameraY = 128.0f;
	photoCameraZ = (float) spawn.z;
	if (!photoCameraTarget) {
		photoCameraTarget = new TripodCamera(minecraft->level, minecraft->player, photoCameraX, photoCameraY, photoCameraZ);
	}
	photoCameraTarget->setPos(photoCameraX, photoCameraY, photoCameraZ);
	photoCameraTarget->xo = photoCameraTarget->xOld = photoCameraX;
	photoCameraTarget->yo = photoCameraTarget->yOld = photoCameraY;
	photoCameraTarget->zo = photoCameraTarget->zOld = photoCameraZ;

	if (!oldHideGui) minecraft->options.toggle(OPTIONS_HIDEGUI);
	if (!oldThirdPerson) minecraft->options.toggle(OPTIONS_THIRD_PERSON_VIEW);
	if (!oldFixedCamera) minecraft->options.toggle(OPTIONS_FIXED_CAMERA);

	minecraft->gameRenderer->setPhotoModeIsometric();
	minecraft->levelRenderer->allChanged();
	hasAppliedPhotoMode = true;
}

void UploadPhotoScreen::tick()
{
	if (!hasAppliedPhotoMode || !minecraft || !minecraft->player || !minecraft->level) return;

	if (photoCameraTarget) {
		photoCameraTarget->setPos(photoCameraX, photoCameraY, photoCameraZ);
		photoCameraTarget->xo = photoCameraTarget->xOld = photoCameraX;
		photoCameraTarget->yo = photoCameraTarget->yOld = photoCameraY;
		photoCameraTarget->zo = photoCameraTarget->zOld = photoCameraZ;
		photoCameraTarget->yRot = photoCameraTarget->yRotO = 45.0f;
		photoCameraTarget->xRot = photoCameraTarget->xRotO = 68.0f;
		minecraft->cameraTargetPlayer = photoCameraTarget;
	}
}

void UploadPhotoScreen::restorePhotoMode()
{
	if (!hasAppliedPhotoMode || !minecraft) return;

	if (minecraft->options.getBooleanValue(OPTIONS_HIDEGUI) != oldHideGui) minecraft->options.toggle(OPTIONS_HIDEGUI);
	if (minecraft->options.getBooleanValue(OPTIONS_THIRD_PERSON_VIEW) != oldThirdPerson) minecraft->options.toggle(OPTIONS_THIRD_PERSON_VIEW);
	if (minecraft->options.getBooleanValue(OPTIONS_FIXED_CAMERA) != oldFixedCamera) minecraft->options.toggle(OPTIONS_FIXED_CAMERA);
	minecraft->gameRenderer->clearPhotoModeIsometric();
	minecraft->cameraTargetPlayer = minecraft->player;

	if (hasOldPose && minecraft->player) {
		minecraft->player->yRot = oldYaw;
		minecraft->player->xRot = oldPitch;
	}

	hasAppliedPhotoMode = false;
}

void UploadPhotoScreen::keyPressed(int eventKey)
{
	if (eventKey == Keyboard::KEY_ESCAPE) {
		restorePhotoMode();
		minecraft->setScreen(NULL);
		return;
	}

	Screen::keyPressed(eventKey);
}

void UploadPhotoScreen::buttonClicked(Button* button)
{
	if (!button || button->id != 1) return;

	restorePhotoMode();
	minecraft->setScreen(NULL);
}

void UploadPhotoScreen::setupPositions()
{
	const int buttonWidth = 120;
	const int buttonHeight = 24;
	bBack->width = buttonWidth;
	bBack->height = buttonHeight;
	bBack->x = (width - buttonWidth) / 2;
	bBack->y = height - 32;
}

void UploadPhotoScreen::render(int xm, int ym, float a)
{
	drawCenteredString(font, "Photo Mode - Isometric", width / 2, 12, 0xffffff);
	Screen::render(xm, ym, a);
}