#define _DEFAULT_SOURCE
#define _BSD_SOURCE
#define _GNU_SOURCE

#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <termios.h>
#include <time.h>
#include <unistd.h>
#include <signal.h>

#include "fn.h"
#include "terminal.h"
#include "output.h"
#include "row.h"
#include "hl.h"
#include "search.h"
#include "file.h"
#include "input.h"

// TODO: Put this somewhere else?
void windowResizeCallback(int signum);
void initEditor();
  
void windowResizeCallback(int signum) {
  if (signum != SIGWINCH) {
    return;
  }

  if (setWindowSize(&E.screenrows, &E.screencols) == -1) {
    die("setWindowSize");
  }
  E.screenrows -= 2;
  editorRefreshScreen();
}

void initEditor() {
  E.cx = 0;
  E.cy = 0;
  E.rx = 0;
  E.rowoff = 0;
  E.coloff = 0;
  E.numrows = 0;
  E.row = NULL;
  E.dirty = 0;
  E.filename = NULL;
  E.statusmsg[0] = '\0';
  E.statusmsg_time = 0;
  E.syntax = NULL;

  if (setWindowSize(&E.screenrows, &E.screencols) == -1) {
      die("setWindowSize");
  }
  E.screenrows -= 2;
}

int main(int argc, char *argv[]) {

  enableRawMode();
  initEditor();
  if (argc >= 2) {
    editorOpen(argv[1]);
  }

  editorSetStatusMessage("HELP: Ctrl-S = save | Ctrl-Q = Quit | Ctrl-F = find");

  signal(SIGWINCH, windowResizeCallback);

  while (1) {
    editorRefreshScreen();
    editorProcessKeypress();
  }

  return 0;
}