#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
		       
#include "Input.h"
#include "Exceptions.h"
#include "config.h"

Input::Input(String no) throw (GeneralException) :
    Handle(no.strlen() ? open(no.to_charp(), O_RDONLY) : 0),
    n(no) {
    if (GetHandle() < 0) {
	throw IOGeneral(String("Error opening file") + no + " for reading: " + strerror(errno));
    }
    
    cerr << "File " << no << " is opened with handle " << GetHandle() << endl;
    size = lseek(GetHandle(), 0, SEEK_END);
    lseek(GetHandle(), 0, SEEK_SET);
    
    struct stat s;
    
    fstat(GetHandle(), &s);
    
    date_modif = s.st_mtime;
}

bool Input::CanWrite() {
    return 0;
}

bool Input::CanRead() {
    return 1;
}

String Input::GetName() {
    return n;
}

off_t Input::GetSize() {
    return size;
}

time_t Input::GetModif() {
    return date_modif;
}

Stdin_t::Stdin_t() : Handle(dup(0)) { }

bool Stdin_t::CanWrite() {
    return 0;
}

bool Stdin_t::CanRead() {
    return 1;
}

String Stdin_t::GetName() {
    return "Stdin";
}

Stdin_t Stdin;