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#include "src/core/ext/client_channel/resolver_result.h"

#include <string.h>

#include <grpc/support/alloc.h>
#include <grpc/support/string_util.h>

#include "src/core/lib/channel/channel_args.h"

struct grpc_resolver_result {
  gpr_refcount refs;
  char* server_name;
  grpc_lb_addresses* addresses;
  char* lb_policy_name;
  grpc_channel_args* lb_policy_args;
};

grpc_resolver_result* grpc_resolver_result_create(
    const char* server_name, grpc_lb_addresses* addresses,
    const char* lb_policy_name, grpc_channel_args* lb_policy_args) {
  grpc_resolver_result* result = gpr_malloc(sizeof(*result));
  memset(result, 0, sizeof(*result));
  gpr_ref_init(&result->refs, 1);
  result->server_name = gpr_strdup(server_name);
  result->addresses = addresses;
  result->lb_policy_name = gpr_strdup(lb_policy_name);
  result->lb_policy_args = lb_policy_args;
  return result;
}

void grpc_resolver_result_ref(grpc_resolver_result* result) {
  gpr_ref(&result->refs);
}

void grpc_resolver_result_unref(grpc_exec_ctx* exec_ctx,
                                grpc_resolver_result* result) {
  if (gpr_unref(&result->refs)) {
    gpr_free(result->server_name);
    grpc_lb_addresses_destroy(result->addresses, NULL /* user_data_destroy */);
    gpr_free(result->lb_policy_name);
    grpc_channel_args_destroy(result->lb_policy_args);
    gpr_free(result);
  }
}

const char* grpc_resolver_result_get_server_name(grpc_resolver_result* result) {
  return result->server_name;
}

grpc_lb_addresses* grpc_resolver_result_get_addresses(
    grpc_resolver_result* result) {
  return result->addresses;
}

const char* grpc_resolver_result_get_lb_policy_name(
    grpc_resolver_result* result) {
  return result->lb_policy_name;
}

grpc_channel_args* grpc_resolver_result_get_lb_policy_args(
    grpc_resolver_result* result) {
  return result->lb_policy_args;
}