/*
 * Copyright 2009, Michael Lotz, mmlr@mlotz.ch.
 * Distributed under the terms of the MIT License.
 */
#ifndef HID_PARSER_H
#define HID_PARSER_H

#include "HIDDataTypes.h"
#include "util/Vector.h"


class HIDCollection;
class HIDDevice;
class HIDReport;

class HIDParser {
public:
                                                                HIDParser(HIDDevice *device);
                                                                ~HIDParser();

                HIDDevice *                             Device() { return fDevice; };

                status_t                                ParseReportDescriptor(
                                                                        const uint8 *reportDescriptor,
                                                                        size_t descriptorLength);

                bool                                    UsesReportIDs() { return fUsesReportIDs; };

                HIDReport *                             FindReport(uint8 type, uint8 id);
                uint8                                   CountReports(uint8 type);
                HIDReport *                             ReportAt(uint8 type, uint8 index);
                size_t                                  MaxReportSize();
                size_t                                  MaxReportSize(uint8 type);

                HIDCollection *                 RootCollection() { return fRootCollection; };

                void                                    SetReport(status_t status, uint8 *report,
                                                                        size_t length);

                void                                    PrintToStream();

private:
                HIDReport *                             _FindOrCreateReport(uint8 type, uint8 id);
                float                                   _CalculateResolution(global_item_state *state);
                void                                    _Reset();

                HIDDevice *                             fDevice;
                bool                                    fUsesReportIDs;
                Vector<HIDReport *>             fReports;
                HIDCollection *                 fRootCollection;
};

#endif // HID_PARSER_H