#include <openssl/ssl.h>
#include <string.h>
#include <time.h>

#include "config.h"
#include "connect.h"
#include "net.h"
#include "request.h"
#include "response.h"
#include "status.h"

int send_request(struct config *conf, struct request *req) {
  char *req_string = request_to_string(req);

  int rc = SSL_write(conf->s.conn->ssl, req_string, strlen(req_string));

  if (rc < 0) {
    return SSL_SEND_ERROR;
  }

  free(req_string);
  return 0;
}

int read_response(struct config *conf, struct response *res) {
  struct timespec start_time;
  clock_gettime(CLOCK_MONOTONIC, &start_time);

  int buf_len = 4096;
  char *buf = malloc(buf_len);

  int bytes_read = 0;

  do {
    bytes_read = SSL_read(conf->s.conn->ssl, buf, buf_len);

    if (bytes_read == buf_len) {
      buf_len *= 2;
      char *temp_buf = realloc(buf, buf_len);
      if (temp_buf == NULL)
        return ALLOC_ERROR;

      buf = temp_buf;
    }
  } while (bytes_read > 0);

  int rc = parse_response(res, buf);
  if (rc < 0) {
    return RESPONSE_PARSE_ERROR;
  }
  free(buf);

  struct timespec end_time;
  clock_gettime(CLOCK_MONOTONIC, &end_time);

  float time_diff = (end_time.tv_sec - start_time.tv_sec) +
                    1e-9 * (end_time.tv_nsec - start_time.tv_nsec);

  int msg_len =
      snprintf(NULL, 0, "Received after %0.3f seconds", time_diff) + 1;
  char *msg = malloc(msg_len);
  snprintf(msg, msg_len, "Received after %.3f seconds", time_diff);

  update_status(conf, msg);
  free(msg);

  return 0;
}