#include "texturepack.h"

#include "ZipHelper.h"

#define MAX_FILENAME 256

bool texturepackUseDefaultIcons = true;
bool texturepackUseDefaultPlayer = true;
bool texturepackUseDefaultFont = true;
bool texturepackUseDefaultBottom = true;

void toLowerString(char * str){
	int i;
	for (i = 0; str[i] != '\0'; i++)str[i] = (char)tolower((unsigned char)str[i]);
}

int getTexturePackComment(char * filename, char * cmmtBuf){

	// Open the zip file
	unzFile *zipfile = unzOpen(filename);
	if ( zipfile == NULL ) return 1; // Error: ZipFile could not be opened.

	// Get info about the zip file
	unz_global_info global_info;
	if (unzGetGlobalInfo(zipfile, &global_info ) != UNZ_OK )
	{
		unzClose( zipfile );
		return 2; // Error: Could not read global info
	}

	unzGetGlobalComment(zipfile, cmmtBuf, 58);

	unzClose( zipfile );

	return 0;
}

int loadTexture(char * filename) {
	char lowerFilename[MAX_FILENAME];
	strcpy(lowerFilename,filename);
	toLowerString(lowerFilename);

	if(strcmp(lowerFilename, "icons.png") == 0){
		if(sfil_load_PNG_file(filename, SF2D_PLACE_RAM) == NULL){
			return 0;
		}

		icons = sfil_load_PNG_file(filename, SF2D_PLACE_RAM);
		reloadColors();

		texturepackUseDefaultIcons = false;
	} else if(strcmp(lowerFilename, "player.png") == 0){
		if(sfil_load_PNG_file(filename, SF2D_PLACE_RAM) == NULL){
			return 0;
		}

		playerSprites = sfil_load_PNG_file(filename, SF2D_PLACE_RAM);

		texturepackUseDefaultPlayer = false;
	} else if(strcmp(lowerFilename, "font.png") == 0){
		if(sfil_load_PNG_file(filename, SF2D_PLACE_RAM) == NULL){
			return 0;
		}

		font = sfil_load_PNG_file(filename, SF2D_PLACE_RAM);

		texturepackUseDefaultFont = false;
	} else if(strcmp(lowerFilename, "bottombg.png") == 0){
		if(sfil_load_PNG_file(filename, SF2D_PLACE_RAM) == NULL){
			return 0;
		}

		bottombg = sfil_load_PNG_file(filename, SF2D_PLACE_RAM);

		texturepackUseDefaultBottom = false;
	}

	return 0;
}

int loadTexturePack(char * filename) {
	texturepackUseDefaultIcons = true;
	texturepackUseDefaultPlayer = true;
	texturepackUseDefaultFont = true;
	texturepackUseDefaultBottom = true;

	if(unzipAndLoad(filename, &loadTexture, NULL, ZIPHELPER_CLEANUP_FILES)!=0) {
		return 1;
	}

	if(texturepackUseDefaultIcons){
		icons = sfil_load_PNG_buffer(icons_png, SF2D_PLACE_RAM);
		reloadColors();
	}
	if(texturepackUseDefaultPlayer) playerSprites = sfil_load_PNG_buffer(player_png, SF2D_PLACE_RAM);
	if(texturepackUseDefaultFont) font = sfil_load_PNG_buffer(Font_png, SF2D_PLACE_RAM);
	if(texturepackUseDefaultBottom) bottombg = sfil_load_PNG_buffer(bottombg_png, SF2D_PLACE_RAM);

	return 0;
}