#include "inc\mc.h"
#include "inc\config.h"

const char mccf_config[]="mcconfig.cfg";
MC_CFG MCConfig;

char* GetCfgPath()
{
	if (pathbuf)
	{
		if (!CONFIG_MCCONFIG_PATH[0])
			strcpy((char*)CONFIG_MCCONFIG_PATH, mcpath);

		int pathLen = strlen(CONFIG_MCCONFIG_PATH);
		if (pathLen > 0)
		{
			if (((char*)CONFIG_MCCONFIG_PATH)[pathLen - 1] == '\\')
				((char*)CONFIG_MCCONFIG_PATH)[pathLen - 1] = 0;
			sprintf(pathbuf, _s_s, CONFIG_MCCONFIG_PATH, mccf_config);
			return pathbuf;
		}
	}
	return NULL;
}

void InitCfg()
{
	zeromem(&MCConfig, sizeof(MCConfig));
	if (CONFIG_SAVE_PATH)
	{
		if (curtab >= MAX_TABS) 
			MCConfig.curtab = back_tab < MAX_TABS ? back_tab : 0;
		else
			MCConfig.curtab = curtab;

		for(int ii=0; ii < MAX_TABS; ii++)
		{
			int dr = tabs[ii]->CurDrv;
			MCConfig.tabs[ii].sort = tabs[ii]->sort;
			MCConfig.tabs[ii].LastInd = tabs[ii]->iIndex[dr];
			strcpy(MCConfig.tabs[ii].LastPath, tabs[ii]->szDirs[dr]);
		}
	} 
}

void SaveCfg()
{
	if (pathbuf)
	{
		int f;
		char* cfgPath = GetCfgPath();
		if (cfgPath)
		{
			if ((f=fopen(cfgPath,A_ReadWrite+A_Create+A_Truncate,P_READ+P_WRITE,&err))!=-1)
			{
				MCCF_hdr hdr;
				hdr.sig=mccf_sig;
				hdr.ver=mccf_ver;
				hdr.size=mccf_size;
				hdr.offset=mccf_offset;

				InitCfg();

				fwrite(f,&hdr,sizeof(hdr),&err);
				fwrite(f,&MCConfig,sizeof(MCConfig),&err);
				fclose(f,&err);
			}
		}
	} 
}

int LoadCfg()
{
	int res = 0;

	if (pathbuf)
	{
		int f;
		char* cfgPath = GetCfgPath();
		if (cfgPath)
		{
			if ((f=fopen(cfgPath,A_ReadOnly+A_BIN,P_READ,&err))!=-1)
			{
				MCCF_hdr hdr;
				if (fread(f, &hdr, sizeof(hdr), &err)==sizeof(hdr) &&
					(hdr.sig==mccf_sig) && (hdr.size>=mccf_size))
				{
					lseek(f,hdr.offset,S_SET,&err,&err);
					res = fread(f, &MCConfig, sizeof(MCConfig), &err)==sizeof(MCConfig);
				} 
				fclose(f, &err);
			}
		}
	}
	if (!res)zeromem(&MCConfig, sizeof(MCConfig));
	return res;
}