// ================================================================================
// ==      This file is a part of Turbo Badger. (C) 2011-2014, Emil Segerås      ==
// ==                     See tb_core.h for more information.                    ==
// ================================================================================

#include "tb_system.h"

#ifdef TB_SYSTEM_ANDROID_DISABLED

#include <android/log.h>
#include <sys/time.h>
#include <stdio.h>

// for native asset manager
#include <sys/types.h>
#include <android/asset_manager.h>
#include <android/asset_manager_jni.h>
#include <android/configuration.h>

#ifdef TB_RUNTIME_DEBUG_INFO

#define  LOG_TAG    "TB"
#define  LOGI(...)  __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
#define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR ,LOG_TAG, __VA_ARGS__)

void TBDebugOut(const char *str)
{
    LOGI(str);
}

#endif // TB_RUNTIME_DEBUG_INFO

AAssetManager *g_pManager = NULL;

void SetAssetManager(AAssetManager *pManager)
{
    g_pManager = pManager;
}

namespace tb {

// == TBSystem ========================================

double TBSystem::GetTimeMS()
{
    struct timeval now;
    gettimeofday(&now, NULL);
    return now.tv_usec / 1000 + now.tv_sec * 1000;
}

void TBSystem::RescheduleTimer(double fire_time)
{
}

int TBSystem::GetLongClickDelayMS()
{
    return 500;
}

int TBSystem::GetPanThreshold()
{
    return 5 * GetDPI() / 120;
}

int TBSystem::GetPixelsPerLine()
{
    return 40 * GetDPI() / 120;
}

int TBSystem::GetDPI()
{
    AConfiguration *config = AConfiguration_new();
    AConfiguration_fromAssetManager(config, g_pManager);
    int32_t density = AConfiguration_getDensity(config);
    AConfiguration_delete(config);
    if (density == 0 || density == ACONFIGURATION_DENSITY_NONE)
        return 120;
    return density;
}

// == TBFile =====================================

class TBAndroidFile : public TBFile
{
public:
    TBAndroidFile(AAsset* f) : file(f) {}
    virtual ~TBAndroidFile() { AAsset_close(file); }

    virtual long Size()
    {
        return AAsset_getLength(file);
    }
    virtual size_t Read(void *buf, size_t elemSize, size_t count)
    {
        return AAsset_read(file, buf, elemSize * count);
    }
private:
    AAsset *file;
};

TBFile *TBFile::Open(const char *filename, TBFileMode mode)
{
    AAsset *f = nullptr;
    switch (mode)
    {
    case MODE_READ:
        f = AAssetManager_open(g_pManager, filename, AASSET_MODE_UNKNOWN);
        break;
    default:
        break;
    }
    if (!f)
        return nullptr;
    TBAndroidFile *tbf = new TBAndroidFile(f);
    if (!tbf)
        AAsset_close(f);
    return tbf;
}

}; // namespace tb

#endif // TB_SYSTEM_ANDROID