#include "clar_libgit2.h"

#include "fileops.h"

#include "git2/reflog.h"

#include "git2/refdb.h"

#include "reflog.h"

#include "refs.h"

#include "ref_helpers.h"

static const char *loose_tag_ref_name = "refs/tags/e90810b";

static git_repository *g_repo;

void test_refs_pack__initialize(void)

{

   g_repo = cl_git_sandbox_init("testrepo");

}

void test_refs_pack__cleanup(void)

{

   cl_git_sandbox_cleanup();

}

static void packall(void)

{

	git_refdb *refdb;

	cl_git_pass(git_repository_refdb(&refdb, g_repo));

	cl_git_pass(git_refdb_compress(refdb));

	git_refdb_free(refdb);

}

void test_refs_pack__empty(void)

{

	/* create a packfile for an empty folder */

	git_buf temp_path = GIT_BUF_INIT;

	cl_git_pass(git_buf_join_n(&temp_path, '/', 3, git_repository_path(g_repo), GIT_REFS_HEADS_DIR, "empty_dir"));

	cl_git_pass(git_futils_mkdir_r(temp_path.ptr, GIT_REFS_DIR_MODE));

	git_buf_free(&temp_path);

	packall();

}

void test_refs_pack__loose(void)

{

	/* create a packfile from all the loose refs in a repo */

	git_reference *reference;

	git_buf temp_path = GIT_BUF_INIT;

	/* Ensure a known loose ref can be looked up */

	cl_git_pass(git_reference_lookup(&reference, g_repo, loose_tag_ref_name));

	cl_assert(reference_is_packed(reference) == 0);

	cl_assert_equal_s(reference->name, loose_tag_ref_name);

	git_reference_free(reference);

	/*

	 * We are now trying to pack also a loose reference

	 * called `points_to_blob`, to make sure we can properly

	 * pack weak tags

	 */

	packall();

	/* Ensure the packed-refs file exists */

	cl_git_pass(git_buf_joinpath(&temp_path, git_repository_path(g_repo), GIT_PACKEDREFS_FILE));

	cl_assert(git_path_exists(temp_path.ptr));

	/* Ensure the known ref can still be looked up but is now packed */

	cl_git_pass(git_reference_lookup(&reference, g_repo, loose_tag_ref_name));

	cl_assert(reference_is_packed(reference));

	cl_assert_equal_s(reference->name, loose_tag_ref_name);

	/* Ensure the known ref has been removed from the loose folder structure */

	cl_git_pass(git_buf_joinpath(&temp_path, git_repository_path(g_repo), loose_tag_ref_name));

	cl_assert(!git_path_exists(temp_path.ptr));

	git_reference_free(reference);

	git_buf_free(&temp_path);

}

void test_refs_pack__symbolic(void)

{

	/* create a packfile from loose refs skipping symbolic refs */

	int i;

	git_oid head;

	git_reference *ref;

	char name[128];

	cl_git_pass(git_reference_name_to_id(&head, g_repo, "HEAD"));

	/* make a bunch of references */

	for (i = 0; i < 100; ++i) {

		p_snprintf(name, sizeof(name), "refs/heads/symbolic-%03d", i);

		cl_git_pass(git_reference_symbolic_create(

			&ref, g_repo, name, "refs/heads/master", 0, NULL));

		git_reference_free(ref);

		p_snprintf(name, sizeof(name), "refs/heads/direct-%03d", i);

		cl_git_pass(git_reference_create(&ref, g_repo, name, &head, 0, NULL));

		git_reference_free(ref);

	}

	packall();

}