#include "processor/proc_argparser.h"
#include "aliases.h"
#include <argp.h>

INTERNAL error_t argp_parser(i32 key, char *arg, argp_state *state);

INTERNAL argp parser = {};

ProcessorArgs parse_args(i32 argc, char *argv[]) {
  ProcessorArgs args = {};

  parser.options = {};
  parser.parser = argp_parser;
  parser.args_doc = "JSON_FILEPATH";

  argp_parse(&parser, argc, argv, 0, 0, &args);

  return args;
}

error_t argp_parser(i32 key, char *arg, argp_state *state) {
  ProcessorArgs *args = (ProcessorArgs *)state->input;

  switch (key) {
  case ARGP_KEY_ARG:
    if (state->arg_num >= 1) {
      argp_usage(state);
    }

    args->filepath = arg;

    break;
  case ARGP_KEY_END:
    if (state->arg_num < 1) {
      argp_usage(state);
    }

    break;
  default:
    return ARGP_ERR_UNKNOWN;
  }

  return 0;
}