/*
 * Copyright (c) 2020-2021 ndeadly
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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 program.  If not, see <http://www.gnu.org/licenses/>.
 */
#pragma once
#include "emulated_switch_controller.hpp"

namespace ams::controller {

    enum GamesirDpadDirection {
        GamesirDpad_Released,
        GamesirDpad_N,
        GamesirDpad_NE,
        GamesirDpad_E,
        GamesirDpad_SE,
        GamesirDpad_S,
        GamesirDpad_SW,
        GamesirDpad_W,
        GamesirDpad_NW,
    };

    enum GamesirDpadDirection2 {
        GamesirDpad2_N,
        GamesirDpad2_NE,
        GamesirDpad2_E,
        GamesirDpad2_SE,
        GamesirDpad2_S,
        GamesirDpad2_SW,
        GamesirDpad2_W,
        GamesirDpad2_NW,
        GamesirDpad2_Released = 0x0f,
    };

    struct GamesirStickData {
        uint8_t x;
        uint8_t y;
    } __attribute__((packed));

    struct GamesirButtonData {
        uint8_t A       : 1;
        uint8_t B       : 1;
        uint8_t         : 1;
        uint8_t X       : 1;
        uint8_t Y       : 1;
        uint8_t         : 1;
        uint8_t LB      : 1;
        uint8_t RB      : 1;

        uint8_t LT      : 1;
        uint8_t RT      : 1;
        uint8_t select  : 1;
        uint8_t start   : 1;
        uint8_t home    : 1;  // Only present in report 0x03
        uint8_t L3      : 1;
        uint8_t R3      : 1;
        uint8_t         : 0;

        uint8_t dpad;
    } __attribute__((packed));

    struct GamesirReport0x03 {
        GamesirButtonData buttons;
        GamesirStickData left_stick;
        GamesirStickData right_stick;
        uint8_t left_trigger;
        uint8_t right_trigger;
        uint8_t _unk[2];
    } __attribute__((packed));

    struct GamesirReport0x12 {
        uint8_t         : 3;
        uint8_t home    : 1;
        uint8_t         : 0;

        uint8_t _unk[2];
    } __attribute__((packed));

    struct GamesirReport0xc4 {
        GamesirStickData left_stick;
        GamesirStickData right_stick;
        uint8_t left_trigger;
        uint8_t right_trigger;
        GamesirButtonData buttons;
        uint8_t _unk;
    } __attribute__((packed));

    struct GamesirReportData {
        uint8_t id;
        union {
            GamesirReport0x03 input0x03;
            GamesirReport0x12 input0x12;
            GamesirReport0xc4 input0xc4;
        };
    } __attribute__((packed));

    class GamesirController : public EmulatedSwitchController {

        public:
            static constexpr const HardwareID hardware_ids[] = {
                {0xffff, 0x046e},   // Gamesir G3s
                {0x05ac, 0x022d},   // Gamesir G3s (Alternate mode. Lol, this is actually the ID of an Apple wireless keyboard)
                {0xffff, 0x046f},   // Gamesir G4s
                {0xffff, 0x0450},   // Gamesir T1s
                {0x05ac, 0x056b}    // Gamesir T2a
            };  

            GamesirController(const bluetooth::Address *address, HardwareID id)
            : EmulatedSwitchController(address, id) { }

            bool SupportsSetTsiCommand(void) { return false; }

            void UpdateControllerState(const bluetooth::HidReport *report);

        private:
            void HandleInputReport0x03(const GamesirReportData *src);
            void HandleInputReport0x12(const GamesirReportData *src);
            void HandleInputReport0xc4(const GamesirReportData *src);

    };

}