/*
 * TileMapComponent.h
 *
 *  Created on: Mar 21, 2020
 *      Author: ayoungblood
 */

#ifndef SRC_ECS_TILEMAPCOMPONENT_H_
#define SRC_ECS_TILEMAPCOMPONENT_H_

#include "ECS.h"
#include <SDL2/SDL.h>
#include "../assetmgr/AssetManager.h"
#include <fstream>
#include <iostream>
#include <string>
#include <tuple>
#include "../tileson/tileson.hpp"
//#include "../../libtmx-parser/src/tmxparser.h"

class TileMapComponent : public Component
{
public:
	SDL_Texture* texture;
	SDL_Rect srcRect, destRect;
	//tmxparser::TmxMap map;
	//tileson::Tileson map;
	int globalScale;
	std::vector<SDL_Rect> tileSet;
	std::vector<SDL_Rect> destRects;
	std::vector<std::tuple<int,int>> initialPositions;
	int tileSetTotal;
	std::vector<std::vector<int>> colliders;
	int tilesWide;
	int tilesHigh;
	int tileWidth;
	
	TileMapComponent() = default;

	~TileMapComponent()
	{
		SDL_DestroyTexture(texture);
	}

	TileMapComponent(std::string mapPath, int gScale, int offsetX, int offsetY)
	{
// ***********************************************************************************
// TILESON ~~~~~~~~~~~

 		tson::Tileson t;
        const std::filesystem::path jsonPath = std::filesystem::u8path(mapPath);
        std::unique_ptr<tson::Map> map = t.parse(jsonPath);

        std::cout << jsonPath << std::endl;
        if(map->getStatus() == tson::ParseStatus::OK)
        {
            printf("Tileson successfully parsed the tilemap\n");
            std::cout << map->getStatusMessage() << std::endl;
            //Gets the layer called "Object Layer" from the "ultimate_demo.json map
            //tson::Layer *tileLayer = map->getLayer("Tile Layer 1"); //This is an Object Layer

            //Example from a Tile Layer
            //I know for a fact that this is a Tile Layer, but you can check it this way to be sure.
            //if(tileLayer->getType() == tson::LayerType::TileLayer)
            //{
                //pos = position in tile units
                // printf("Tileson found layer of tiles");
                // for(auto &[pos, tileObject] : tileLayer->getTileObjects()) //Loops through absolutely all existing tileObjects
                // {
                //     tson::Tileset *tileset = tileObject.getTile()->getTileset();
                //     tson::Rect drawingRect = tileObject.getDrawingRect();
                //     tson::Vector2f position = tileObject.getPosition();
                //     //printf("X: %f, Y: %f\n",position.x,position.y);
                // }
            //}

// *******************************************************************************************
		//map = loadedMap;
		tson::Tileset *tileset = map->getTileset("br-tiles");
		std::cout << "Image Path: " << tileset->getImage() << std::endl;

		//tson::Tile *tile = tileset->getTile(1);
		//std::string myTexPath = tile->getImage();
		//tson::Layer *tileLayer = map->getLayer("Tile Layer 1"); //This is an Object Layer
		//std::cout << "\nTexturePath: \n" << myTexPath << "\n" << std::endl;


		//std::string texturePath = "assets/textures/tiles/" + loadedMap.tilesetCollection[0].name + ".png";
		//Game::assets->AddTexture(map.tilesetCollection[0].name, texturePath.c_str());
		//setTex(map.tilesetCollection[0].name);
		globalScale = gScale;
		
		//colliders.resize(map.height, std::vector<int>(map.width, 0));
		tilesWide = map->getSize().x;
		//printf("tilesWide: %d\n",tilesWide);
		tilesHigh = map->getSize().y;
		//printf("tilesHigh: %d\n",tilesHigh);
		tileWidth = map->getTileSize().x;
		//printf("tileSizeWidth: %d\n",tileWidth);
		
// 		=========== Setup Tile Set ===========
		//tileSetTotal = map.tilesetCollection[0].colCount*map.tilesetCollection[0].rowCount;
		//tileSet.resize(tileSetTotal);
/*
		for (int r=0;r<map.tilesetCollection[0].rowCount;r++){
			for (int c=0;c<map.tilesetCollection[0].colCount;c++){
				srcRect.x = c*map.tilesetCollection[0].tileWidth;
				srcRect.y = r*map.tilesetCollection[0].tileHeight;
				srcRect.w = srcRect.h = map.tileWidth;
				int element = r*map.tilesetCollection[0].colCount+c;
				tileSet[element] = srcRect;
			}
		}
		
// 		=========== Setup Tile Map ============
		destRects.resize(map.width*map.height);
		initialPositions.resize(map.width*map.height);		
		for (int r = 0;r<map.height;r++){
			for (int c = 0;c<map.width;c++){
				int elem = c+r*map.width;
				SDL_Rect thisRect = SDL_Rect();
				thisRect.x = c*map.tilesetCollection[0].tileWidth*globalScale;
				thisRect.y = r*map.tilesetCollection[0].tileWidth*globalScale;
				thisRect.w = thisRect.h = map.tileWidth * globalScale;
				std::tuple<int,int> ogPos = std::make_tuple(thisRect.x,thisRect.y);
				initialPositions[elem] = ogPos;
				thisRect.x = thisRect.x-offsetX*globalScale;
				thisRect.y = thisRect.y-offsetY*globalScale;
				destRects[elem] = thisRect;
				colliders[r][c] = map.layerCollection[1].tiles[elem].gid;
// 				std::cout << "colliders[" << std::to_string(r) << "][" << std::to_string(c) << "]= " << std::to_string(colliders[r][c]) << std::endl;
            }
		}
		destRect.w = destRect.h = map.tileWidth * gScale;
	*/
		} else {
            printf("Failed to load Tileson map\n");
            std::cout << map->getStatusMessage();
            //printf(map->getStatus());
        }
	}

	void update() override
	{
// 		if (Game::gsm->currentState == GameStateManager::ST_COREGAME){
			
			for (int i=0;i<destRects.size();i++){
				destRects[i].x = std::get<0>(initialPositions[i]) - Game::camera.x;
				destRects[i].y = std::get<1>(initialPositions[i]) - Game::camera.y;
			}
// 		}
	}

	void draw() override
	{
	//iterate through rows and columns of the map to draw the tiles
		// First cycle through rows
/*		for (int r = 0;r<map.height;r++){
			// Next cycle through each column or tile in that row:
			for (int c = 0;c<map.width;c++){
				int i = r*map.width+c;
				int elem = c+r*map.width;
				int tileToDraw = map.layerCollection[0].tiles[i].gid-1;
				TextureManager::Draw(texture, tileSet[tileToDraw], destRects[elem], SDL_FLIP_NONE);
				if (Game::debugMenu){
					if (map.layerCollection[1].tiles[i].gid != 0) {
						SDL_SetRenderDrawColor(Game::renderer,255,0,255,134);
						SDL_RenderDrawRect(Game::renderer, &destRects[elem]);
					}
				}
            }
		}*/

	}

    void setTex(std::string id)
	{
		texture = Game::assets->GetTexture(id);
	}
};

#endif /* SRC_ECS_TILEMAPCOMPONENT_H_ */