/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_image_ImageLogging_h

#define mozilla_image_ImageLogging_h

#include "mozilla/Logging.h"

#include "Image.h"

#include "nsIURI.h"

#include "prinrval.h"

static mozilla::LazyLogModule gImgLog("imgRequest");

#define GIVE_ME_MS_NOW() PR_IntervalToMilliseconds(PR_IntervalNow())

using mozilla::LogLevel;

class LogScope {

public:

  LogScope(mozilla::LogModule* aLog, void* aFrom, const char* aFunc)

    : mLog(aLog)

    , mFrom(aFrom)

    , mFunc(aFunc)

  {

    MOZ_LOG(mLog, LogLevel::Debug, ("%d [this=%p] %s {ENTER}\n",

                                GIVE_ME_MS_NOW(), mFrom, mFunc));

  }

  /* const char * constructor */

  LogScope(mozilla::LogModule* aLog, void* from, const char* fn,

           const char* paramName, const char* paramValue)

    : mLog(aLog)

    , mFrom(from)

    , mFunc(fn)

  {

    MOZ_LOG(mLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%s\") {ENTER}\n",

                                 GIVE_ME_MS_NOW(), mFrom, mFunc,

                                 paramName, paramValue));

  }

  /* void ptr constructor */

  LogScope(mozilla::LogModule* aLog, void* from, const char* fn,

           const char* paramName, const void* paramValue)

    : mLog(aLog)

    , mFrom(from)

    , mFunc(fn)

  {

    MOZ_LOG(mLog, LogLevel::Debug, ("%d [this=%p] %s (%s=%p) {ENTER}\n",

                                GIVE_ME_MS_NOW(), mFrom, mFunc,

                                paramName, paramValue));

  }

  /* int32_t constructor */

  LogScope(mozilla::LogModule* aLog, void* from, const char* fn,

           const char* paramName, int32_t paramValue)

    : mLog(aLog)

    , mFrom(from)

    , mFunc(fn)

  {

    MOZ_LOG(mLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%d\") {ENTER}\n",

                                GIVE_ME_MS_NOW(), mFrom, mFunc,

                                paramName, paramValue));

  }

  /* uint32_t constructor */

  LogScope(mozilla::LogModule* aLog, void* from, const char* fn,

           const char* paramName, uint32_t paramValue)

    : mLog(aLog)

    , mFrom(from)

    , mFunc(fn)

  {

    MOZ_LOG(mLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%d\") {ENTER}\n",

                                GIVE_ME_MS_NOW(), mFrom, mFunc,

                                paramName, paramValue));

  }

  /* nsIURI constructor */

  LogScope(mozilla::LogModule* aLog, void* from, const char* fn,

           const char* paramName, nsIURI* aURI)

    : mLog(aLog)

    , mFrom(from)

    , mFunc(fn)

  {

    if (MOZ_LOG_TEST(gImgLog, LogLevel::Debug)) {

      static const size_t sMaxTruncatedLength = 1024;

      nsAutoCString spec("<unknown>");

      if (aURI) {

        aURI->GetSpec(spec);

        if (spec.Length() >= sMaxTruncatedLength) {

          spec.Truncate(sMaxTruncatedLength);

        }

      }

      MOZ_LOG(aLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%s\") {ENTER}\n",

                                  GIVE_ME_MS_NOW(), from, fn,

                                  paramName, spec.get()));

    }

  }

  /* Image constructor */

  LogScope(mozilla::LogModule* aLog, void* from, const char* fn,

           const char* paramName, mozilla::image::Image* aImage)

    : LogScope(aLog, from, fn, paramName, aImage ? aImage->GetURI() : nullptr)

  {

  }

  ~LogScope()

  {

    MOZ_LOG(mLog, LogLevel::Debug, ("%d [this=%p] %s {EXIT}\n",

                                GIVE_ME_MS_NOW(), mFrom, mFunc));

  }

private:

  mozilla::LogModule* mLog;

  void* mFrom;

  const char* mFunc;

};

class LogFunc {

public:

  LogFunc(mozilla::LogModule* aLog, void* from, const char* fn)

  {

    MOZ_LOG(aLog, LogLevel::Debug, ("%d [this=%p] %s\n",

                                GIVE_ME_MS_NOW(), from, fn));

  }

  LogFunc(mozilla::LogModule* aLog, void* from, const char* fn,

          const char* paramName, const char* paramValue)

  {

    MOZ_LOG(aLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%s\")\n",

                                GIVE_ME_MS_NOW(), from, fn,

                                paramName, paramValue));

  }

  LogFunc(mozilla::LogModule* aLog, void* from, const char* fn,

          const char* paramName, const void* paramValue)

  {

    MOZ_LOG(aLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%p\")\n",

                                GIVE_ME_MS_NOW(), from, fn,

                                paramName, paramValue));

  }

  LogFunc(mozilla::LogModule* aLog, void* from, const char* fn,

          const char* paramName, uint32_t paramValue)

  {

    MOZ_LOG(aLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%d\")\n",

                                GIVE_ME_MS_NOW(), from, fn,

                                paramName, paramValue));

  }

  LogFunc(mozilla::LogModule* aLog, void* from, const char* fn,

          const char* paramName, nsIURI* aURI)

  {

    if (MOZ_LOG_TEST(gImgLog, LogLevel::Debug)) {

      static const size_t sMaxTruncatedLength = 1024;

      nsAutoCString spec("<unknown>");

      if (aURI) {

        aURI->GetSpec(spec);

        if (spec.Length() >= sMaxTruncatedLength) {

          spec.Truncate(sMaxTruncatedLength);

        }

      }

      MOZ_LOG(aLog, LogLevel::Debug, ("%d [this=%p] %s (%s=\"%s\")\n",

                                  GIVE_ME_MS_NOW(), from, fn,

                                  paramName, spec.get()));

    }

  }

  LogFunc(mozilla::LogModule* aLog, void* from, const char* fn,

          const char* paramName, mozilla::image::Image* aImage)

    : LogFunc(aLog, from, fn, paramName, aImage ? aImage->GetURI() : nullptr)

  {

  }

};

class LogMessage {

public:

  LogMessage(mozilla::LogModule* aLog, void* from, const char* fn,

             const char* msg)

  {

    MOZ_LOG(aLog, LogLevel::Debug, ("%d [this=%p] %s -- %s\n",

                                GIVE_ME_MS_NOW(), from, fn, msg));

  }

};

#define LOG_SCOPE_APPEND_LINE_NUMBER_PASTE(id, line) id ## line

#define LOG_SCOPE_APPEND_LINE_NUMBER_EXPAND(id, line) \

        LOG_SCOPE_APPEND_LINE_NUMBER_PASTE(id, line)

#define LOG_SCOPE_APPEND_LINE_NUMBER(id) \

        LOG_SCOPE_APPEND_LINE_NUMBER_EXPAND(id, __LINE__)

#define LOG_SCOPE(l, s) \

  LogScope LOG_SCOPE_APPEND_LINE_NUMBER(LOG_SCOPE_TMP_VAR) (l, this, s)

#define LOG_SCOPE_WITH_PARAM(l, s, pn, pv) \

  LogScope LOG_SCOPE_APPEND_LINE_NUMBER(LOG_SCOPE_TMP_VAR) (l, this, s, pn, pv)

#define LOG_FUNC(l, s) LogFunc(l, this, s)

#define LOG_FUNC_WITH_PARAM(l, s, pn, pv) LogFunc(l, this, s, pn, pv)

#define LOG_STATIC_FUNC(l, s) LogFunc(l, nullptr, s)

#define LOG_STATIC_FUNC_WITH_PARAM(l, s, pn, pv) LogFunc(l, nullptr, s, pn, pv)

#define LOG_MSG(l, s, m) LogMessage(l, this, s, m)

#define LOG_MSG_WITH_PARAM LOG_FUNC_WITH_PARAM

#endif // mozilla_image_ImageLogging_h