/*
 * utils.h: miscellaneous utilities
 *
 * Copyright (c) 2013 - 2021, Přemysl Eric Janouch <p@janouch.name>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#ifndef UTILS_H
#define UTILS_H

#include <glib.h>
#include <gio/gio.h>

#include "stardict.h"

/// After this statement, the element has been found and its index is stored
/// in the variable "imid".
#define BINARY_SEARCH_BEGIN(max, compare)                                     \
	gint imin = 0, imax = max, imid;                                          \
	while (imin <= imax) {                                                    \
		imid = imin + (imax - imin) / 2;                                      \
		gint cmp = compare;                                                   \
		if      (cmp > 0) imin = imid + 1;                                    \
		else if (cmp < 0) imax = imid - 1;                                    \
		else {

/// After this statement, the binary search has failed and "imin" stores
/// the position where the element can be inserted.
#define BINARY_SEARCH_END                                                     \
		}                                                                     \
	}

gchar *xdxf_to_pango_markup_with_reduced_effort (const gchar *xml);

gboolean stream_read_all (GByteArray *ba, GInputStream *is, GError **error);
gchar *stream_read_string (GDataInputStream *dis, GError **error);
gboolean xstrtoul (unsigned long *out, const char *s, int base);
void fatal (const gchar *format, ...) G_GNUC_PRINTF (1, 2) G_GNUC_NORETURN;

gchar *resolve_relative_filename_generic
	(const gchar **paths, const gchar *tail, const gchar *filename);
gchar *resolve_relative_config_filename (const gchar *filename);
gchar *resolve_filename
	(const gchar *filename, gchar *(*relative_cb) (const char *));
GKeyFile *load_project_config_file (GError **error);

// --- Loading -----------------------------------------------------------------

typedef struct dictionary Dictionary;

struct dictionary
{
	gchar        *filename;          ///< Path to the dictionary
	StardictDict *dict;              ///< StarDict dictionary data
	gchar        *name;              ///< Name to show
};

void dictionary_destroy (Dictionary *self);
gboolean load_dictionaries (GPtrArray *dictionaries, GError **e);

#endif  // ! UTILS_H