lib/options/client.c

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#include "options/client.h"
#include "options/builder.h"
#include "options/common.h"
 
#include "asciichat_errno.h"
#include "audio/audio.h"
#include "common.h"
#include "crypto/crypto.h"
#include "log/logging.h"
#include "options/levenshtein.h"
#include "options/options.h"
#include "options/validation.h"
#include "platform/system.h"
#include "util/ip.h"
#include "util/parsing.h"
#include "util/password.h"
#include "video/ascii.h"
#include "video/webcam/webcam.h"
 
#ifdef _WIN32
#include "platform/windows/getopt.h"
#else
#include <getopt.h>
#endif
 
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
// ============================================================================
// Client Option Parsing
// ============================================================================
 
asciichat_error_t parse_client_options(int argc, char **argv, options_t *opts) {
  const options_config_t *config = options_preset_client("ascii-chat client", "connect to an ascii-chat server");
  int remaining_argc;
  char **remaining_argv;
 
  // Apply defaults from preset before parsing command-line args
  asciichat_error_t defaults_result = options_config_set_defaults(config, opts);
  if (defaults_result != ASCIICHAT_OK) {
    options_config_destroy(config);
    return defaults_result;
  }
 
  asciichat_error_t result = options_config_parse(config, argc, argv, opts, &remaining_argc, &remaining_argv);
  if (result != ASCIICHAT_OK) {
    options_config_destroy(config);
    return result;
  }
 
  // Check for unexpected remaining arguments
  if (remaining_argc > 0) {
    (void)fprintf(stderr, "Error: Unexpected arguments after options:\n");
    for (int i = 0; i < remaining_argc; i++) {
      (void)fprintf(stderr, "  %s\n", remaining_argv[i]);
    }
    options_config_destroy(config);
    return option_error_invalid();
  }
 
  options_config_destroy(config);
  return ASCIICHAT_OK;
}
 
// ============================================================================
// Client Usage Text
// ============================================================================
 
void usage_client(FILE *desc) {
  // Get config with program name and description
  const options_config_t *config = options_preset_client("ascii-chat client", "connect to an ascii-chat server");
  if (!config) {
    (void)fprintf(desc, "Error: Failed to create options config\n");
    return;
  }
 
  // Print custom address format help first
  (void)fprintf(desc, "%s - %s\n\n", config->program_name, config->description);
  (void)fprintf(desc, "USAGE:\n");
  (void)fprintf(desc, "  %s [address][:port] [options...]\n\n", config->program_name);
 
  // Print positional argument examples programmatically
  if (config->num_positional_args > 0) {
    const positional_arg_descriptor_t *pos_arg = &config->positional_args[0];
    if (pos_arg->section_heading && pos_arg->examples && pos_arg->num_examples > 0) {
      (void)fprintf(desc, "%s:\n", pos_arg->section_heading);
      for (size_t i = 0; i < pos_arg->num_examples; i++) {
        (void)fprintf(desc, "  %s\n", pos_arg->examples[i]);
      }
      (void)fprintf(desc, "\n");
    }
  }
 
  // Generate options from builder configuration
  options_config_print_usage(config, desc);
 
  // Clean up the config
  options_config_destroy(config);
}