#include <stdint.h>
#include <stddef.h>
#include <uprintf.h>
#include <args/args.h>
#include <string/string.h>
#include <string/char.h>
#include <log.h>
#include <ansiq/all.h>
#include <system/system.h>
#include <sysdefs/ipcpipe.h>

static struct {
  char *modestr;
  enum { MODE_INTERACTIVE = 1, MODE_RUNFILE = 2 } mode;
} CONFIG;

#define LINEBUF_MAX 1024

static Arg ARGS[] = {
  ARG("-m", ARG_STRING, &CONFIG.modestr),
  ARG_END(),
};

void set_config(void) {
  int32_t ret;
  if ((ret = parse_args(args(), argslen(), ARGS)) < 0) {
    uprintf("Could not parse args: %d\n", ret);
  }

  if (CONFIG.modestr != NULL) {
    if (string_strcmp(CONFIG.modestr, "interactive") == 0) {
      CONFIG.mode = MODE_INTERACTIVE;
    } else if (string_strcmp(CONFIG.modestr, "runfile") == 0) {
      CONFIG.mode = MODE_RUNFILE;
    } else {
      LOG(LOG_ERR, "Unknown mode %s\n", CONFIG.modestr);
    }
  } else {
    CONFIG.mode = MODE_RUNFILE;
  }
  uprintf("CONFIG.mode = %d\n", CONFIG.mode);
}

void process_cmd(char *cmdtext) {

}

void do_mode_interactive(void) {
  char linebuf[LINEBUF_MAX];
  size_t cursor;
  for(;;) {
    uprintf("tb# ");

    cursor = 0;
    string_memset(linebuf, 0, LINEBUF_MAX);
    char c = 0;
    while (c != '\n') {
      int32_t rd = ipcpipe(IPCPIPE_SELFPID, IPCPIPE_IN, IPCPIPE_READ, (uint8_t *)&c, 1);
      if (rd > 0 && cursor < LINEBUF_MAX) {
        linebuf[cursor++] = c;
      }
    }
    linebuf[cursor - 1] = '\0';
    uprintf("\n");

    process_cmd(linebuf);
  }
}

void main(void) {
  set_config();

  if (CONFIG.mode == MODE_INTERACTIVE) {
    do_mode_interactive();
  }
}