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/*
 * Purple - Internet Messaging Library
 * Copyright (C) Pidgin Developers <devel@pidgin.im>
 *
 * Purple is the legal property of its developers, whose names are too numerous
 * to list here. Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this library; if not, see <https://www.gnu.org/licenses/>.
 */

#if !defined(PURPLE_GLOBAL_HEADER_INSIDE) && !defined(PURPLE_COMPILATION)
# error "only <purple.h> may be included directly"
#endif

#ifndef PURPLE_VERSION_H
#define PURPLE_VERSION_H

#include <glib.h>

#include "purpleversionconsts.h"

#if (defined(_WIN32) || defined(__CYGWIN__)) && \
	!defined(PURPLE_STATIC_COMPILATION)
#define _PURPLE_EXPORT __declspec(dllexport)
#define _PURPLE_IMPORT __declspec(dllimport)
#elif __GNUC__ >= 4
#define _PURPLE_EXPORT __attribute__((visibility("default")))
#define _PURPLE_IMPORT
#else
#define _PURPLE_EXPORT
#define _PURPLE_IMPORT
#endif
#ifdef PURPLE_COMPILATION
#define _PURPLE_API _PURPLE_EXPORT
#else
#define _PURPLE_API _PURPLE_IMPORT
#endif

#define _PURPLE_EXTERN _PURPLE_API extern

#ifdef PURPLE_DISABLE_DEPRECATION_WARNINGS
#define PURPLE_DEPRECATED _PURPLE_EXTERN
#define PURPLE_DEPRECATED_FOR(f) _PURPLE_EXTERN
#define PURPLE_UNAVAILABLE(maj, min) _PURPLE_EXTERN
#define PURPLE_UNAVAILABLE_MACRO(maj, min)
#define PURPLE_UNAVAILABLE_STATIC_INLINE(maj, min)
#define PURPLE_UNAVAILABLE_TYPE(maj, min)
#else
#define PURPLE_DEPRECATED G_DEPRECATED _PURPLE_EXTERN
#define PURPLE_DEPRECATED_FOR(f) G_DEPRECATED_FOR(f) _PURPLE_EXTERN
#define PURPLE_UNAVAILABLE(maj, min) G_UNAVAILABLE(maj, min) _PURPLE_EXTERN
#define PURPLE_UNAVAILABLE_MACRO(maj, min) G_UNAVAILABLE_MACRO(maj, min)
#define PURPLE_UNAVAILABLE_STATIC_INLINE(maj, min) G_UNAVAILABLE(maj, min)
#define PURPLE_UNAVAILABLE_TYPE(maj, min) G_UNAVAILABLE(maj, min)
#endif

/**
 * PURPLE_VERSION_CUR_STABLE:
 *
 * A macro that evaluates to the current stable version of libpurple, in a format
 * that can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_CUR_STABLE \
	(G_ENCODE_VERSION(PURPLE_MAJOR_VERSION, PURPLE_MINOR_VERSION))

/**
 * PURPLE_VERSION_MIN_REQUIRED:
 *
 * A macro that should be defined by the user prior to including the `purple.h`
 * header.
 *
 * The definition should be one of the predefined Purple version macros:
 * %PURPLE_VERSION_3_0, %PURPLE_VERSION_3_1, ...
 *
 * This macro defines the earliest version of Purple that the package is
 * required to be able to compile against.
 *
 * If the compiler is configured to warn about the use of deprecated functions,
 * then using functions that were deprecated in version
 * %PURPLE_VERSION_MIN_REQUIRED or earlier will cause warnings (but using
 * functions deprecated in later releases will not).
 *
 * Since: 3.0
 */

/* If the package sets PURPLE_VERSION_MIN_REQUIRED to some future
 * PURPLE_VERSION_X_Y value that we don't know about, it will compare as 0 in
 * preprocessor tests.
 */
#ifndef PURPLE_VERSION_MIN_REQUIRED
#define PURPLE_VERSION_MIN_REQUIRED (PURPLE_VERSION_CUR_STABLE)
#elif PURPLE_VERSION_MIN_REQUIRED == 0
#undef PURPLE_VERSION_MIN_REQUIRED
#define PURPLE_VERSION_MIN_REQUIRED (PURPLE_VERSION_CUR_STABLE + 1)
#endif /* PURPLE_VERSION_MIN_REQUIRED */

#if !defined(PURPLE_VERSION_MAX_ALLOWED) || (PURPLE_VERSION_MAX_ALLOWED == 0)
#undef PURPLE_VERSION_MAX_ALLOWED
#define PURPLE_VERSION_MAX_ALLOWED (PURPLE_VERSION_CUR_STABLE)
#endif /* PURPLE_VERSION_MAX_ALLOWED */

/* sanity checks */
#if PURPLE_VERSION_MIN_REQUIRED > PURPLE_VERSION_CUR_STABLE
#error "PURPLE_VERSION_MIN_REQUIRED must be <= PURPLE_VERSION_CUR_STABLE"
#endif
#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_MIN_REQUIRED
#error "PURPLE_VERSION_MAX_ALLOWED must be >= PURPLE_VERSION_MIN_REQUIRED"
#endif
#if PURPLE_VERSION_MIN_REQUIRED < G_ENCODE_VERSION(2, 0)
#error "PURPLE_VERSION_MIN_REQUIRED must be >= PURPLE_VERSION_2_0"
#endif

#define PURPLE_VAR _PURPLE_EXTERN
#define PURPLE_AVAILABLE_IN_ALL _PURPLE_EXTERN

/**
 * PURPLE_VERSION_2_0:
 *
 * A macro that evaluates to the 2.0 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_0 (G_ENCODE_VERSION(2, 0))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_0
#define PURPLE_AVAILABLE_IN_2_0 PURPLE_UNAVAILABLE(2, 0)
#else
#define PURPLE_AVAILABLE_IN_2_0 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_1:
 *
 * A macro that evaluates to the 2.1 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_1 (G_ENCODE_VERSION(2, 1))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_1
#define PURPLE_AVAILABLE_IN_2_1 PURPLE_UNAVAILABLE(2, 1)
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_1 PURPLE_UNAVAILABLE_ENUMERATOR(2, 1)
#else
#define PURPLE_AVAILABLE_IN_2_1 _PURPLE_EXTERN
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_1
#endif

/**
 * PURPLE_VERSION_2_2:
 *
 * A macro that evaluates to the 2.2 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_2 (G_ENCODE_VERSION(2, 2))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_2
#define PURPLE_AVAILABLE_IN_2_2 PURPLE_UNAVAILABLE(2, 2)
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_2 PURPLE_UNAVAILABLE_ENUMERATOR(2, 2)
#else
#define PURPLE_AVAILABLE_IN_2_2 _PURPLE_EXTERN
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_2
#endif

/**
 * PURPLE_VERSION_2_3:
 *
 * A macro that evaluates to the 2.3 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_3 (G_ENCODE_VERSION(2, 3))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_3
#define PURPLE_AVAILABLE_IN_2_3 PURPLE_UNAVAILABLE(2, 3)
#define PURPLE_AVAILABLE_TYPE_IN_2_3 PURPLE_UNAVAILABLE_TYPE(2, 3)
#else
#define PURPLE_AVAILABLE_IN_2_3 _PURPLE_EXTERN
#define PURPLE_AVAILABLE_TYPE_IN_2_3
#endif

/**
 * PURPLE_VERSION_2_4:
 *
 * A macro that evaluates to the 2.4 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_4 (G_ENCODE_VERSION(2, 4))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_4
#define PURPLE_AVAILABLE_IN_2_4 PURPLE_UNAVAILABLE(2, 4)
#else
#define PURPLE_AVAILABLE_IN_2_4 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_5:
 *
 * A macro that evaluates to the 2.5 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_5 (G_ENCODE_VERSION(2, 5))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_5
#define PURPLE_AVAILABLE_IN_2_5 PURPLE_UNAVAILABLE(2, 5)
#else
#define PURPLE_AVAILABLE_IN_2_5 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_6:
 *
 * A macro that evaluates to the 2.6 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_6 (G_ENCODE_VERSION(2, 6))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_6
#define PURPLE_AVAILABLE_IN_2_6 PURPLE_UNAVAILABLE(2, 6)
#define PURPLE_AVAILABLE_STATIC_INLINE_IN_2_6 PURPLE_UNAVAILABLE_STATIC_INLINE(2, 6)
#define PURPLE_AVAILABLE_TYPE_IN_2_6 PURPLE_UNAVAILABLE_TYPE(2, 6)
#else
#define PURPLE_AVAILABLE_IN_2_6 _PURPLE_EXTERN
#define PURPLE_AVAILABLE_STATIC_INLINE_IN_2_6
#define PURPLE_AVAILABLE_TYPE_IN_2_6
#endif

/**
 * PURPLE_VERSION_2_7:
 *
 * A macro that evaluates to the 2.7 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_7 (G_ENCODE_VERSION(2, 7))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_7
#define PURPLE_AVAILABLE_IN_2_7 PURPLE_UNAVAILABLE(2, 7)
#else
#define PURPLE_AVAILABLE_IN_2_7 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_8:
 *
 * A macro that evaluates to the 2.8 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_8 (G_ENCODE_VERSION(2, 8))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_8
#define PURPLE_AVAILABLE_IN_2_8 PURPLE_UNAVAILABLE(2, 8)
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_8 PURPLE_UNAVAILABLE_ENUMERATOR(2, 8)
#else
#define PURPLE_AVAILABLE_IN_2_8 _PURPLE_EXTERN
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_8
#endif

/**
 * PURPLE_VERSION_2_9:
 *
 * A macro that evaluates to the 2.9 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_9 (G_ENCODE_VERSION(2, 9))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_9
#define PURPLE_AVAILABLE_IN_2_9 PURPLE_UNAVAILABLE(2, 9)
#else
#define PURPLE_AVAILABLE_IN_2_9 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_10:
 *
 * A macro that evaluates to the 2.10 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_10 (G_ENCODE_VERSION(2, 10))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_10
#define PURPLE_AVAILABLE_IN_2_10 PURPLE_UNAVAILABLE(2, 10)
#else
#define PURPLE_AVAILABLE_IN_2_10 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_11:
 *
 * A macro that evaluates to the 2.11 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_11 (G_ENCODE_VERSION(2, 11))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_11
#define PURPLE_AVAILABLE_IN_2_11 PURPLE_UNAVAILABLE(2, 11)
#else
#define PURPLE_AVAILABLE_IN_2_11 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_12:
 *
 * A macro that evaluates to the 2.12 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_12 (G_ENCODE_VERSION(2, 12))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_12
#define PURPLE_AVAILABLE_IN_2_12 PURPLE_UNAVAILABLE(2, 12)
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_12 PURPLE_UNAVAILABLE_ENUMERATOR(2, 12)
#else
#define PURPLE_AVAILABLE_IN_2_12 _PURPLE_EXTERN
#define PURPLE_AVAILABLE_ENUMERATOR_IN_2_12
#endif

/**
 * PURPLE_VERSION_2_13:
 *
 * A macro that evaluates to the 2.13 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_13 (G_ENCODE_VERSION(2, 13))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_13
#define PURPLE_AVAILABLE_IN_2_13 PURPLE_UNAVAILABLE(2, 13)
#else
#define PURPLE_AVAILABLE_IN_2_13 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_2_14:
 *
 * A macro that evaluates to the 2.14 version of libpurple, in a format that
 * can be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_2_14 (G_ENCODE_VERSION(2, 14))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_2_14
#define PURPLE_AVAILABLE_IN_2_14 PURPLE_UNAVAILABLE(2, 14)
#else
#define PURPLE_AVAILABLE_IN_2_14 _PURPLE_EXTERN
#endif

/**
 * PURPLE_VERSION_3_0:
 *
 * A macro that evaluates to the 3.0 version of libpurple, in a format that can
 * be used by the C pre-processor.
 *
 * Since: 3.0
 */
#define PURPLE_VERSION_3_0 (G_ENCODE_VERSION(3, 0))

#if PURPLE_VERSION_MAX_ALLOWED < PURPLE_VERSION_3_0
#define PURPLE_AVAILABLE_IN_3_0 PURPLE_UNAVAILABLE(3, 0)
#define PURPLE_AVAILABLE_STATIC_INLINE_IN_3_0 PURPLE_UNAVAILABLE_STATIC_INLINE(3, 0)
#define PURPLE_AVAILABLE_MACRO_IN_3_0 PURPLE_UNAVAILABLE_MACRO(3, 0)
#define PURPLE_AVAILABLE_ENUMERATOR_IN_3_0 PURPLE_UNAVAILABLE_ENUMERATOR(3, 0)
#define PURPLE_AVAILABLE_TYPE_IN_3_0 PURPLE_UNAVAILABLE_TYPE(3, 0)
#else
#define PURPLE_AVAILABLE_IN_3_0 _PURPLE_EXTERN
#define PURPLE_AVAILABLE_STATIC_INLINE_IN_3_0
#define PURPLE_AVAILABLE_MACRO_IN_3_0
#define PURPLE_AVAILABLE_ENUMERATOR_IN_3_0
#define PURPLE_AVAILABLE_TYPE_IN_3_0
#endif

/**
 * PURPLE_VERSION_CHECK:
 * @major: The major version to check for.
 * @minor: The minor version to check for.
 * @micro: The micro version to check for.
 *
 * Checks the version of libpurple being compiled against.  See
 * #purple_version_check for a runtime check.
 *
 * Returns: %TRUE if the version of libpurple is the same or newer than the
 *          passed-in version.
 */
#define PURPLE_VERSION_CHECK(major, minor, micro) ((major) == PURPLE_MAJOR_VERSION && \
                                                   ((minor) < PURPLE_MINOR_VERSION || \
                                                    ((minor) == PURPLE_MINOR_VERSION && (micro) <= PURPLE_MICRO_VERSION)))

G_BEGIN_DECLS

/**
 * purple_version_check:
 * @required_major: the required major version.
 * @required_minor: the required minor version.
 * @required_micro: the required micro version.
 *
 * Checks that the libpurple version is compatible with the requested
 * version
 *
 * Returns: %NULL if the versions are compatible, or a string describing
 *          the version mismatch if not compatible.
 */
const char *purple_version_check(guint required_major, guint required_minor, guint required_micro);

/**
 * purple_major_version:
 *
 * The major version of the running libpurple.  Contrast with
 * #PURPLE_MAJOR_VERSION, which expands at compile time to the major version of
 * libpurple being compiled against.
 */
PURPLE_VAR const guint purple_major_version;

/**
 * purple_minor_version:
 *
 * The minor version of the running libpurple.  Contrast with
 * #PURPLE_MINOR_VERSION, which expands at compile time to the minor version of
 * libpurple being compiled against.
 */
PURPLE_VAR const guint purple_minor_version;

/**
 * purple_micro_version:
 *
 * The micro version of the running libpurple.  Contrast with
 * #PURPLE_MICRO_VERSION, which expands at compile time to the micro version of
 * libpurple being compiled against.
 */
PURPLE_VAR const guint purple_micro_version;

G_END_DECLS

#endif /* PURPLE_VERSION_H */