/*
 * SPDX-License-Identifier: LGPL-2.0-or-later
 */

#include <stdlib.h>
#include <locale.h>
#include <libebook/libebook.h>

#include "e-test-server-utils.h"
#include "test-book-cache-utils.h"

static TCUCursorClosure book_closure = { { NULL }, NULL, E_BOOK_CURSOR_SORT_ASCENDING };

static void
test_cursor_sexp_calculate_position (TCUCursorFixture *fixture,
				     gconstpointer user_data)
{
	GError *error = NULL;
	EBookQuery *query;
	gint    position = 0, total = 0;
	gchar *sexp = NULL;
	GSList *results = NULL, *node;
	EBookCacheSearchData *data;

	/* Set the cursor to point exactly to 'blackbirds', which is the 12th contact in en_US */
	if (!e_book_cache_cursor_step (((TCUFixture *) fixture)->book_cache,
					fixture->cursor,
					E_BOOK_CACHE_CURSOR_STEP_MOVE | E_BOOK_CACHE_CURSOR_STEP_FETCH,
					E_BOOK_CACHE_CURSOR_ORIGIN_BEGIN,
					12, &results, NULL, &error))
		g_error ("Error fetching cursor results: %s", error->message);

	/* Ensure we moved to the right contact */
	node = g_slist_last (results);
	g_assert_true (node);
	data = node->data;
	g_assert_cmpstr (data->uid, ==, "sorted-16");
	g_slist_free_full (results, e_book_cache_search_data_free);

	/* Check position */
	if (!e_book_cache_cursor_calculate (((TCUFixture *) fixture)->book_cache,
					     fixture->cursor, &total, &position, NULL, &error))
		g_error ("Error calculating cursor: %s", error->message);

	/* blackbird is at position 12 in an unfiltered en_US locale */
	g_assert_cmpint (position, ==, 12);
	g_assert_cmpint (total, ==, 20);

	/* Set new sexp, only contacts with .com email addresses */
	query = e_book_query_field_test (E_CONTACT_EMAIL, E_BOOK_QUERY_ENDS_WITH, ".com");
	sexp = e_book_query_to_string (query);
	e_book_query_unref (query);

	if (!e_book_cache_cursor_set_sexp (((TCUFixture *) fixture)->book_cache,
					    fixture->cursor, sexp, &error))
		g_error ("Failed to set sexp: %s", error->message);

	/* Check new position after modified sexp */
	if (!e_book_cache_cursor_calculate (((TCUFixture *) fixture)->book_cache,
					     fixture->cursor, &total, &position, NULL, &error))
		g_error ("Error calculating cursor: %s", error->message);

	/* 'blackbird' is now at position 8 out of 13, with a filtered set of contacts in en_US locale */
	g_assert_cmpint (position, ==, 8);
	g_assert_cmpint (total, ==, 13);

	g_free (sexp);
}

static void
test_cursor_sexp_and_step (TCUCursorFixture *fixture,
			   gconstpointer user_data)
{
	GError *error = NULL;
	EBookQuery *query;
	gchar *sexp = NULL;
	GSList *results = NULL, *node;
	EBookCacheSearchData *data;

	/* Set new sexp, only contacts with .com email addresses */
	query = e_book_query_field_test (E_CONTACT_EMAIL, E_BOOK_QUERY_ENDS_WITH, ".com");
	sexp = e_book_query_to_string (query);
	e_book_query_unref (query);

	if (!e_book_cache_cursor_set_sexp (((TCUFixture *) fixture)->book_cache,
					    fixture->cursor, sexp, &error))
		g_error ("Failed to set sexp: %s", error->message);

	/* Step 6 results from the beginning of the filtered list, gets up to contact 'sorted-8' */
	if (!e_book_cache_cursor_step (((TCUFixture *) fixture)->book_cache,
					fixture->cursor,
					E_BOOK_CACHE_CURSOR_STEP_MOVE | E_BOOK_CACHE_CURSOR_STEP_FETCH,
					E_BOOK_CACHE_CURSOR_ORIGIN_BEGIN,
					6, &results, NULL, &error))
		g_error ("Error fetching cursor results: %s", error->message);

	/* Ensure we moved to the right contact */
	node = g_slist_last (results);
	g_assert_true (node);
	data = node->data;
	g_assert_cmpstr (data->uid, ==, "sorted-8");
	g_slist_free_full (results, e_book_cache_search_data_free);
	results = NULL;

	/* Step 6 results more, gets up to contact 'sorted-12' */
	if (!e_book_cache_cursor_step (((TCUFixture *) fixture)->book_cache,
					fixture->cursor,
					E_BOOK_CACHE_CURSOR_STEP_MOVE | E_BOOK_CACHE_CURSOR_STEP_FETCH,
					E_BOOK_CACHE_CURSOR_ORIGIN_CURRENT,
					6, &results, NULL, &error))
		g_error ("Error fetching cursor results: %s", error->message);

	/* Ensure we moved to the right contact */
	node = g_slist_last (results);
	g_assert_true (node);
	data = node->data;
	g_assert_cmpstr (data->uid, ==, "sorted-12");
	g_slist_free_full (results, e_book_cache_search_data_free);

	g_free (sexp);
}

gint
main (gint argc,
      gchar **argv)
{
	g_test_init (&argc, &argv, NULL);
	g_test_bug_base ("https://gitlab.gnome.org/GNOME/evolution-data-server/");

	tcu_read_args (argc, argv);

	g_test_add (
		"/EBookCacheCursor/SetSexp/CalculatePosition", TCUCursorFixture, &book_closure,
		tcu_cursor_fixture_setup,
		test_cursor_sexp_calculate_position,
		tcu_cursor_fixture_teardown);
	g_test_add (
		"/EBookCacheCursor/SetSexp/Step", TCUCursorFixture, &book_closure,
		tcu_cursor_fixture_setup,
		test_cursor_sexp_and_step,
		tcu_cursor_fixture_teardown);

	return e_test_server_utils_run_full (argc, argv, 0);
}
