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#ifndef ANALYSISDAO_H
#define ANALYSISDAO_H

#include <QObject>
#include <QDir>
#include <QSqlDatabase>

#include "preferences/usersettings.h"
#include "library/dao/dao.h"
#include "track/trackid.h"
#include "waveform/waveform.h"

class AnalysisDao : public DAO {
  public:
    static const QString s_analysisTableName;

    enum AnalysisType {
        TYPE_UNKNOWN = 0,
        TYPE_WAVEFORM,
        TYPE_WAVESUMMARY
    };

    struct AnalysisInfo {
        AnalysisInfo()
                : analysisId(-1),
                  type(TYPE_UNKNOWN) {
        }
        int analysisId;
        TrackId trackId;
        AnalysisType type;
        QString description;
        QString version;
        QByteArray data;
    };

    explicit AnalysisDao(UserSettingsPointer pConfig);
    ~AnalysisDao() override = default;

    // The following functions can be used with a custom database
    // connection and independent of whether the DAO has been
    // initialized or not.
    bool deleteAnalysesByType(
            const QSqlDatabase& database,
            AnalysisType type) const;
    size_t getDiskUsageInBytes(
            const QSqlDatabase& database,
            AnalysisType type) const;

    QList<AnalysisInfo> getAnalysesForTrackByType(TrackId trackId, AnalysisType type);
    QList<AnalysisInfo> getAnalysesForTrack(TrackId trackId);
    bool saveAnalysis(AnalysisInfo* analysis);
    bool deleteAnalysis(const int analysisId);
    void deleteAnalyses(const QList<TrackId>& trackIds);
    bool deleteAnalysesForTrack(TrackId trackId);

    void saveTrackAnalyses(
            TrackId trackId,
            ConstWaveformPointer pWaveform,
            ConstWaveformPointer pWaveSummary);

  private:
    QDir getAnalysisStoragePath() const;
    QByteArray loadDataFromFile(const QString& fileName) const;
    bool saveDataToFile(const QString& fileName, const QByteArray& data) const;
    bool deleteFile(const QString& filename) const;
    QList<AnalysisInfo> loadAnalysesFromQuery(TrackId trackId, QSqlQuery* query);

    const UserSettingsPointer m_pConfig;
};

#endif // ANALYSISDAO_H
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/* crypto/ex_data.c */

/*
 * Overhaul notes;
 *
 * This code is now *mostly* thread-safe. It is now easier to understand in what
 * ways it is safe and in what ways it is not, which is an improvement. Firstly,
 * all per-class stacks and index-counters for ex_data are stored in the same
 * global LHASH table (keyed by class). This hash table uses locking for all
 * access with the exception of CRYPTO_cleanup_all_ex_data(), which must only be
 * called when no other threads can possibly race against it (even if it was
 * locked, the race would mean it's possible the hash table might have been
 * recreated after the cleanup). As classes can only be added to the hash table,
 * and within each class, the stack of methods can only be incremented, the
 * locking mechanics are simpler than they would otherwise be. For example, the
 * new/dup/free ex_data functions will lock the hash table, copy the method
 * pointers it needs from the relevant class, then unlock the hash table before
 * actually applying those method pointers to the task of the new/dup/free
 * operations. As they can't be removed from the method-stack, only
 * supplemented, there's no race conditions associated with using them outside
 * the lock. The get/set_ex_data functions are not locked because they do not
 * involve this global state at all - they operate directly with a previously
 * obtained per-class method index and a particular "ex_data" variable. These
 * variables are usually instantiated per-context (eg. each RSA structure has
 * one) so locking on read/write access to that variable can be locked locally
 * if required (eg. using the "RSA" lock to synchronise access to a
 * per-RSA-structure ex_data variable if required).
 * [Geoff]
 */

/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
/* ====================================================================
 * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include "cryptlib.h"
#include <openssl/lhash.h>

/* What an "implementation of ex_data functionality" looks like */
struct st_CRYPTO_EX_DATA_IMPL {
        /*********************/
    /* GLOBAL OPERATIONS */
    /* Return a new class index */
    int (*cb_new_class) (void);
    /* Cleanup all state used by the implementation */
    void (*cb_cleanup) (void);
        /************************/
    /* PER-CLASS OPERATIONS */
    /* Get a new method index within a class */
    int (*cb_get_new_index) (int class_index, long argl, void *argp,
                             CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
                             CRYPTO_EX_free *free_func);
    /* Initialise a new CRYPTO_EX_DATA of a given class */
    int (*cb_new_ex_data) (int class_index, void *obj, CRYPTO_EX_DATA *ad);
    /* Duplicate a CRYPTO_EX_DATA of a given class onto a copy */
    int (*cb_dup_ex_data) (int class_index, CRYPTO_EX_DATA *to,
                           CRYPTO_EX_DATA *from);
    /* Cleanup a CRYPTO_EX_DATA of a given class */
    void (*cb_free_ex_data) (int class_index, void *obj, CRYPTO_EX_DATA *ad);
};

/* The implementation we use at run-time */
static const CRYPTO_EX_DATA_IMPL *impl = NULL;

/*
 * To call "impl" functions, use this macro rather than referring to 'impl'
 * directly, eg. EX_IMPL(get_new_index)(...);
 */
#define EX_IMPL(a) impl->cb_##a

/* Predeclare the "default" ex_data implementation */
static int int_new_class(void);
static void int_cleanup(void);
static int int_get_new_index(int class_index, long argl, void *argp,
                             CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
                             CRYPTO_EX_free *free_func);
static int int_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
static int int_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
                           CRYPTO_EX_DATA *from);
static void int_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
static CRYPTO_EX_DATA_IMPL impl_default = {
    int_new_class,
    int_cleanup,
    int_get_new_index,
    int_new_ex_data,
    int_dup_ex_data,
    int_free_ex_data
};

/*
 * Internal function that checks whether "impl" is set and if not, sets it to
 * the default.
 */
static void impl_check(void)
{
    CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
    if (!impl)
        impl = &impl_default;
    CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
}

/*
 * A macro wrapper for impl_check that first uses a non-locked test before
 * invoking the function (which checks again inside a lock).
 */
#define IMPL_CHECK if(!impl) impl_check();

/* API functions to get/set the "ex_data" implementation */
const CRYPTO_EX_DATA_IMPL *CRYPTO_get_ex_data_implementation(void)
{
    IMPL_CHECK return impl;
}

int CRYPTO_set_ex_data_implementation(const CRYPTO_EX_DATA_IMPL *i)
{
    int toret = 0;
    CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
    if (!impl) {
        impl = i;
        toret = 1;
    }
    CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
    return toret;
}

/****************************************************************************/
/*
 * Interal (default) implementation of "ex_data" support. API functions are
 * further down.
 */

/*
 * The type that represents what each "class" used to implement locally. A
 * STACK of CRYPTO_EX_DATA_FUNCS plus a index-counter. The 'class_index' is
 * the global value representing the class that is used to distinguish these
 * items.
 */
typedef struct st_ex_class_item {
    int class_index;
    STACK_OF(CRYPTO_EX_DATA_FUNCS) *meth;
    int meth_num;
} EX_CLASS_ITEM;

/* When assigning new class indexes, this is our counter */
static int ex_class = CRYPTO_EX_INDEX_USER;

/* The global hash table of EX_CLASS_ITEM items */
DECLARE_LHASH_OF(EX_CLASS_ITEM);
static LHASH_OF(EX_CLASS_ITEM) *ex_data = NULL;

/* The callbacks required in the "ex_data" hash table */
static unsigned long ex_class_item_hash(const EX_CLASS_ITEM *a)
{
    return a->class_index;
}

static IMPLEMENT_LHASH_HASH_FN(ex_class_item, EX_CLASS_ITEM)

static int ex_class_item_cmp(const EX_CLASS_ITEM *a, const EX_CLASS_ITEM *b)
{
    return a->class_index - b->class_index;
}

static IMPLEMENT_LHASH_COMP_FN(ex_class_item, EX_CLASS_ITEM)

/*
 * Internal functions used by the "impl_default" implementation to access the
 * state
 */
static int ex_data_check(void)
{
    int toret = 1;
    CRYPTO_w_lock(CRYPTO_LOCK_EX_DATA);
    if (!ex_data && (ex_data = lh_EX_CLASS_ITEM_new()) == NULL)
        toret = 0;
    CRYPTO_w_unlock(CRYPTO_LOCK_EX_DATA);
    return toret;
}

/*
 * This macros helps reduce the locking from repeated checks because the
 * ex_data_check() function checks ex_data again inside a lock.
 */
#define EX_DATA_CHECK(iffail) if(!ex_data && !ex_data_check()) {iffail}

/* This "inner" callback is used by the callback function that follows it */
static void def_cleanup_util_cb(CRYPTO_EX_DATA_FUNCS *funcs)
{
    OPENSSL_free(funcs);
}

/*
 * This callback is used in lh_doall to destroy all EX_CLASS_ITEM values from
 * "ex_data" prior to the ex_data hash table being itself destroyed. Doesn't
 * do any locking.
 */
static void def_cleanup_cb(void *a_void)
{
    EX_CLASS_ITEM *item = (EX_CLASS_ITEM *)