#include "clar_libgit2.h"

#include "repository.h"

#include "git2/reflog.h"

#include "reflog.h"

static const char *ref_name = "refs/heads/other";

static const char *ref_master_name = "refs/heads/master";

static const char *ref_branch_name = "refs/heads/branch";

static const char *ref_test_name = "refs/heads/test";

static git_repository *g_repo;

void test_refs_overwrite__initialize(void)

{

   g_repo = cl_git_sandbox_init("testrepo");

}

void test_refs_overwrite__cleanup(void)

{

   cl_git_sandbox_cleanup();

}

void test_refs_overwrite__symbolic(void)

{

   // Overwrite an existing symbolic reference

	git_reference *ref, *branch_ref;

	/* The target needds to exist and we need to check the name has changed */

	cl_git_pass(git_reference_symbolic_create(&branch_ref, g_repo, ref_branch_name, ref_master_name, 0, NULL));

	cl_git_pass(git_reference_symbolic_create(&ref, g_repo, ref_name, ref_branch_name, 0, NULL));

	git_reference_free(ref);

	/* Ensure it points to the right place*/

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_name));

	cl_assert(git_reference_type(ref) & GIT_REF_SYMBOLIC);

	cl_assert_equal_s(git_reference_symbolic_target(ref), ref_branch_name);

	git_reference_free(ref);

	/* Ensure we can't create it unless we force it to */

	cl_git_fail(git_reference_symbolic_create(&ref, g_repo, ref_name, ref_master_name, 0, NULL));

	cl_git_pass(git_reference_symbolic_create(&ref, g_repo, ref_name, ref_master_name, 1, NULL));

	git_reference_free(ref);

	/* Ensure it points to the right place */

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_name));

	cl_assert(git_reference_type(ref) & GIT_REF_SYMBOLIC);

	cl_assert_equal_s(git_reference_symbolic_target(ref), ref_master_name);

	git_reference_free(ref);

	git_reference_free(branch_ref);

}

void test_refs_overwrite__object_id(void)

{

   // Overwrite an existing object id reference

	git_reference *ref;

	git_oid id;

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_master_name));

	cl_assert(git_reference_type(ref) & GIT_REF_OID);

	git_oid_cpy(&id, git_reference_target(ref));

	git_reference_free(ref);

	/* Create it */

	cl_git_pass(git_reference_create(&ref, g_repo, ref_name, &id, 0, NULL));

	git_reference_free(ref);

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_test_name));

	cl_assert(git_reference_type(ref) & GIT_REF_OID);

	git_oid_cpy(&id, git_reference_target(ref));

	git_reference_free(ref);

	/* Ensure we can't overwrite unless we force it */

	cl_git_fail(git_reference_create(&ref, g_repo, ref_name, &id, 0, NULL));

	cl_git_pass(git_reference_create(&ref, g_repo, ref_name, &id, 1, NULL));

	git_reference_free(ref);

	/* Ensure it has been overwritten */

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_name));

	cl_assert_equal_oid(&id, git_reference_target(ref));

	git_reference_free(ref);

}

void test_refs_overwrite__object_id_with_symbolic(void)

{

   // Overwrite an existing object id reference with a symbolic one

	git_reference *ref;

	git_oid id;

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_master_name));

	cl_assert(git_reference_type(ref) & GIT_REF_OID);

	git_oid_cpy(&id, git_reference_target(ref));

	git_reference_free(ref);

	cl_git_pass(git_reference_create(&ref, g_repo, ref_name, &id, 0, NULL));

	git_reference_free(ref);

	cl_git_fail(git_reference_symbolic_create(&ref, g_repo, ref_name, ref_master_name, 0, NULL));

	cl_git_pass(git_reference_symbolic_create(&ref, g_repo, ref_name, ref_master_name, 1, NULL));

	git_reference_free(ref);

	/* Ensure it points to the right place */

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_name));

	cl_assert(git_reference_type(ref) & GIT_REF_SYMBOLIC);

	cl_assert_equal_s(git_reference_symbolic_target(ref), ref_master_name);

	git_reference_free(ref);

}

void test_refs_overwrite__symbolic_with_object_id(void)

{

   // Overwrite an existing symbolic reference with an object id one

	git_reference *ref;

	git_oid id;

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_master_name));

	cl_assert(git_reference_type(ref) & GIT_REF_OID);

	git_oid_cpy(&id, git_reference_target(ref));

	git_reference_free(ref);

	/* Create the symbolic ref */

	cl_git_pass(git_reference_symbolic_create(&ref, g_repo, ref_name, ref_master_name, 0, NULL));

	git_reference_free(ref);

	/* It shouldn't overwrite unless we tell it to */

	cl_git_fail(git_reference_create(&ref, g_repo, ref_name, &id, 0, NULL));

	cl_git_pass(git_reference_create(&ref, g_repo, ref_name, &id, 1, NULL));

	git_reference_free(ref);

	/* Ensure it points to the right place */

	cl_git_pass(git_reference_lookup(&ref, g_repo, ref_name));

	cl_assert(git_reference_type(ref) & GIT_REF_OID);

	cl_assert_equal_oid(&id, git_reference_target(ref));

	git_reference_free(ref);

}