#include <git2.h>

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include "common.h"

static int use_remote(git_repository *repo, char *name)

{

	git_remote *remote = NULL;

	int error;

	const git_remote_head **refs;

	size_t refs_len, i;

	git_remote_callbacks callbacks = GIT_REMOTE_CALLBACKS_INIT;

	// Find the remote by name

	error = git_remote_lookup(&remote, repo, name);

	if (error < 0) {

		error = git_remote_create_anonymous(&remote, repo, name);

		if (error < 0)

			goto cleanup;

	}

	/**

	 * Connect to the remote and call the printing function for

	 * each of the remote references.

	 */

	callbacks.credentials = cred_acquire_cb;

	error = git_remote_connect(remote, GIT_DIRECTION_FETCH, &callbacks, NULL, NULL);

	if (error < 0)

		goto cleanup;

	/**

	 * Get the list of references on the remote and print out

	 * their name next to what they point to.

	 */

	if (git_remote_ls(&refs, &refs_len, remote) < 0)

		goto cleanup;

	for (i = 0; i < refs_len; i++) {

		char oid[GIT_OID_HEXSZ + 1] = {0};

		git_oid_fmt(oid, &refs[i]->oid);

		printf("%s\t%s\n", oid, refs[i]->name);

	}

cleanup:

	git_remote_free(remote);

	return error;

}

/** Entry point for this command */

int ls_remote(git_repository *repo, int argc, char **argv)

{

	int error;

	if (argc < 2) {

		fprintf(stderr, "usage: %s ls-remote <remote>\n", argv[-1]);

		return EXIT_FAILURE;

	}

	error = use_remote(repo, argv[1]);

	return error;

}