#include <acknex.h>
#include <windows.h>

typedef struct 
{
	char* filename[MAX_PATH];
}my_files;
int total_found=0;

//char* findthis : search criteria
//char* skipthischar :exclude filenames with an occurance of this caracter/s
//int atpos :the occurance of the caracter must be at this position ,to skip the filename
// for example, skipthischar="_" , atposition=1 in string "_example.exe" wil be skipped ,but "ex_ample" not
// if atpos=0 ,then the filename is skipped no matter where the position is at eg:"ex_ample" will be skipped

//int max_filenames :max filename's array size

my_files* get_filenames(char* findthis,char* skipthischar,int atpos,int max_filenames)
{
	if(atpos<1) atpos=0;
	if(atpos>MAX_PATH)atpos=MAX_PATH;
	
	int current=0;
	my_files *filenames=malloc(sizeof(my_files)*max_filenames);
	
	WIN32_FIND_DATA find_result;
	char searchfor[MAX_PATH];
	HANDLE find_handle=INVALID_HANDLE_VALUE;
	DWORD error=0;
	
	
	memcpy(searchfor,findthis,MAX_PATH);
	
	find_handle=FindFirstFile(searchfor,&find_result);

	if(find_handle==INVALID_HANDLE_VALUE)
	{
		printf("none found");
		FindClose(find_handle);
		return;
	}
	
	//first found
	else
	{
		if(atpos>0)
		{
			if(str_stri(_chr(find_result.cFileName),skipthischar)!=atpos)
			memcpy(filenames[0].filename,_chr(find_result.cFileName),MAX_PATH);
		}
		else if(atpos==0)
		{
			if(str_stri(_chr(find_result.cFileName),skipthischar)==atpos)
			memcpy(filenames[0].filename,_chr(find_result.cFileName),MAX_PATH);
		}
	}
	
	//find others
	while(FindNextFile(find_handle,&find_result)!=0)
	{
		error=GetLastError();
		if(error!=ERROR_NO_MORE_FILES)
		{
			if(atpos>0)
			{
				if(str_stri(_chr(find_result.cFileName),skipthischar)!=atpos)
				{
					if(current+1<max_filenames)
					{
						current+=1;
						memcpy(filenames[current].filename,_chr(find_result.cFileName),MAX_PATH);				
					}
				}
			}
			else if(atpos==0)
			{
				if(str_stri(_chr(find_result.cFileName),skipthischar)==atpos)
				{
					if(current+1<max_filenames)
					{
						current+=1;
						memcpy(filenames[current].filename,_chr(find_result.cFileName),MAX_PATH);				
					}
				}
			}
			
		}
	}
	
	FindClose(find_handle);
	total_found=current+1;
	return filenames;	
}

void main()
{
	//find *.mdl but skip all that has "_" at position 1
	my_files *filenames=get_filenames("*.mdl","_",1,100);
	
	//or
	//find *.mdl but skip all that has "_" at any position
	//my_files *filenames=get_filenames("*.mdl","_",0,100);
	if(filenames!=NULL)
	{
		int i;
		for(i=0;i<total_found;i++)
		{
			printf(_chr(filenames[i]));
		}
		sys_free(filenames);
	}
}