#include "maploader.hpp"
#include "../sdlpp/sdlpp_rectrenderer.hpp"
#include <fstream>
#include "sprites.hpp"
#include "blocks.hpp"
#include "objectids.hpp"

std::shared_ptr<SDLPP::RectangleRender> decodeObject( char obj, double x, double y, std::shared_ptr<SDLPP::Renderer> &renderer) {
    switch(obj) {
        case 'F':
            return createTerrainBlock(FLOOR_OVERWORLD_ID, renderer, x, y, true);
        case 'I':
            return createTerrainBlock(HILL_OVERWORLD_INCLINE_ID, renderer, x, y);
        case 'R':
            return createTerrainBlock(HILL_OVERWORLD_DOTS_RIGHT_ID, renderer, x, y);
        case 'G':
            return createTerrainBlock(HILL_OVERWORLD_FILL_ID, renderer, x, y);
        case 'L':
            return createTerrainBlock(HILL_OVERWORLD_DOTS_LEFT_ID, renderer, x, y);
        case 'D':
            return createTerrainBlock(HILL_OVERWORLD_DECLINE_ID, renderer, x, y);
        case 'T':
            return createTerrainBlock(HILL_OVERWORLD_TOP_ID, renderer, x, y);
        case 'q':
            return createTerrainBlock(BUSH_OVERWORLD_LEFT_ID, renderer, x, y);
        case 'w':
            return createTerrainBlock(BUSH_OVERWORLD_MIDDLE_ID, renderer, x, y);
        case 'r':
            return createTerrainBlock(BUSH_OVERWORLD_RIGHT_ID, renderer, x, y);
        case 'a':
            return createTerrainBlock(CLOUD_OVERWORLD_LEFT_BOTTOM_ID, renderer, x, y);
        case 's':
            return createTerrainBlock(CLOUD_OVERWORLD_MIDDLE_BOTTOM_ID, renderer, x, y);
        case 'd':
            return createTerrainBlock(CLOUD_OVERWORLD_RIGHT_BOTTOM_ID, renderer, x, y);
        case 'z':
            return createTerrainBlock(CLOUD_OVERWORLD_LEFT_TOP_ID, renderer, x, y);
        case 'x':
            return createTerrainBlock(CLOUD_OVERWORLD_MIDDLE_TOP_ID, renderer, x, y);
        case 'c':
            return createTerrainBlock(CLOUD_OVERWORLD_RIGHT_TOP_ID, renderer, x, y);
    }
    return nullptr;
}

void loadMap(std::shared_ptr<SDLPP::Scene> &scene, std::shared_ptr<SDLPP::RectangleRender> &mario, const std::string &file, std::shared_ptr<SDLPP::Renderer> &renderer) {
    std::fstream mapFile;
    mapFile.open(file, std::ios::in);
    std::string buffer;
    std::getline(mapFile, buffer);
    auto cols = std::stoi(buffer);
    std::getline(mapFile, buffer);
    auto rows = std::stoi(buffer);
    std::getline(mapFile, buffer);
    auto mario_x = std::stoi(buffer);
    std::getline(mapFile, buffer);
    auto mario_y = std::stoi(buffer);
    auto cur_y = 1 - rows * BLOCK_SIZE;
    for(size_t i = 0; i < rows; i++) {
        std::getline(mapFile, buffer);
        auto cur_x = -BLOCK_SIZE;
        for(size_t j = 0; j < cols; j++) {
            cur_x += BLOCK_SIZE;
            if(buffer[j] == ' ')
                continue;
            auto obj = decodeObject(buffer[j], cur_x, cur_y, renderer);
            if(obj != nullptr)
                scene->addObject(obj);
        }
        cur_y += BLOCK_SIZE;
    }
    mario->setPos(mario_x * BLOCK_SIZE, 1 - (rows - mario_y) * BLOCK_SIZE);
    scene->moveZTop(mario);
}