#include "git-compat-util.h"

#include "credential.h"

#include "builtin.h"

#include "config.h"

static const char usage_msg[] =

  "git credential (fill|approve|reject)";

int cmd_credential(int argc, const char **argv, const char *prefix UNUSED)

{

  const char *op;

  struct credential c = CREDENTIAL_INIT;

  git_config(git_default_config, NULL);

  if (argc != 2 || !strcmp(argv[1], "-h"))

    usage(usage_msg);

  op = argv[1];

  if (!strcmp(op, "capability")) {

    credential_set_all_capabilities(&c, CREDENTIAL_OP_INITIAL);

    credential_announce_capabilities(&c, stdout);

    return 0;

  }

  if (credential_read(&c, stdin, CREDENTIAL_OP_INITIAL) < 0)

    die("unable to read credential from stdin");

  if (!strcmp(op, "fill")) {

    credential_fill(&c, 0);

    credential_next_state(&c);

    credential_write(&c, stdout, CREDENTIAL_OP_RESPONSE);

  } else if (!strcmp(op, "approve")) {

    credential_set_all_capabilities(&c, CREDENTIAL_OP_HELPER);

    credential_approve(&c);

  } else if (!strcmp(op, "reject")) {

    credential_set_all_capabilities(&c, CREDENTIAL_OP_HELPER);

    credential_reject(&c);

  } else {

    usage(usage_msg);

  }

  credential_clear(&c);

  return 0;

}