/************************************************************************************

Filename	:	VrInputDefault.c
Content		:	Handles default controller input
Created		:	August 2019
Authors		:	Simon Brown

*************************************************************************************/

#include <VrApi.h>
#include <VrApi_Helpers.h>
#include <VrApi_SystemUtils.h>
#include <VrApi_Input.h>
#include <VrApi_Types.h>

#include "VrInput.h"
#include "VrCvars.h"

#include "../quake2/src/client/client.h"

extern cvar_t	*cl_forwardspeed;


void HandleInput_Default( ovrInputStateTrackedRemote *pDominantTrackedRemoteNew, ovrInputStateTrackedRemote *pDominantTrackedRemoteOld, ovrTracking* pDominantTracking,
                          ovrInputStateTrackedRemote *pOffTrackedRemoteNew, ovrInputStateTrackedRemote *pOffTrackedRemoteOld, ovrTracking* pOffTracking,
                          int domButton1, int domButton2, int offButton1, int offButton2 )

{
	//Ensure handedness is set to right
	Cvar_Set("hand", "0");

    static qboolean dominantGripPushed = false;
	static float dominantGripPushTime = 0.0f;
    static qboolean inventoryManagementMode = false;

    //Show screen view (if in multiplayer toggle scoreboard)
    if (((pOffTrackedRemoteNew->Buttons & offButton2) !=
         (pOffTrackedRemoteOld->Buttons & offButton2)) &&
			(pOffTrackedRemoteNew->Buttons & offButton2)) {

		showingScreenLayer = !showingScreenLayer;

        //Check we are in multiplayer
        if (isMultiplayer()) {
            sendButtonActionSimple("score");
        }
    }

	//Menu button
	handleTrackedControllerButton(pOffTrackedRemoteNew, pOffTrackedRemoteOld, ovrButton_Enter, K_ESCAPE);

    if (cls.key_dest == key_menu)
    {
        int leftJoyState = (pOffTrackedRemoteNew->Joystick.x > 0.7f ? 1 : 0);
        if (leftJoyState != (pOffTrackedRemoteOld->Joystick.x > 0.7f ? 1 : 0)) {
            Key_Event(K_RIGHTARROW, leftJoyState, global_time);
        }
        leftJoyState = (pOffTrackedRemoteNew->Joystick.x < -0.7f ? 1 : 0);
        if (leftJoyState != (pOffTrackedRemoteOld->Joystick.x < -0.7f ? 1 : 0)) {
            Key_Event(K_LEFTARROW, leftJoyState, global_time);
        }
        leftJoyState = (pOffTrackedRemoteNew->Joystick.y < -0.7f ? 1 : 0);
        if (leftJoyState != (pOffTrackedRemoteOld->Joystick.y < -0.7f ? 1 : 0)) {
            Key_Event(K_DOWNARROW, leftJoyState, global_time);
        }
        leftJoyState = (pOffTrackedRemoteNew->Joystick.y > 0.7f ? 1 : 0);
        if (leftJoyState != (pOffTrackedRemoteOld->Joystick.y > 0.7f ? 1 : 0)) {
            Key_Event(K_UPARROW, leftJoyState, global_time);
        }

        handleTrackedControllerButton(pDominantTrackedRemoteNew, pDominantTrackedRemoteOld, domButton1, K_ENTER);
        handleTrackedControllerButton(pDominantTrackedRemoteNew, pDominantTrackedRemoteOld, ovrButton_Trigger, K_ENTER);
        handleTrackedControllerButton(pDominantTrackedRemoteNew, pDominantTrackedRemoteOld, domButton2, K_ESCAPE);
    }
    else
    {
        //dominant hand stuff first
        {
			///Weapon location relative to view
            weaponoffset[0] = pDominantTracking->HeadPose.Pose.Position.x - hmdPosition[0];
            weaponoffset[1] = pDominantTracking->HeadPose.Pose.Position.y - hmdPosition[1];
            weaponoffset[2] = pDominantTracking->HeadPose.Pose.Position.z - hmdPosition[2];

			{
				vec2_t v;
				rotateAboutOrigin(-weaponoffset[0], weaponoffset[2], (cl.refdef.viewangles[YAW] - hmdorientation[YAW]), v);
				weaponoffset[0] = v[0];
				weaponoffset[2] = v[1];
			}

            //Set gun angles - We need to calculate all those we might need (including adjustments) for the client to then take its pick
            const ovrQuatf quatRemote = pDominantTracking->HeadPose.Pose.Orientation;
            QuatToYawPitchRoll(quatRemote, vr_weapon_pitchadjust->value, weaponangles);
            weaponangles[YAW] += (cl.refdef.viewangles[YAW] - hmdorientation[YAW]);
            weaponangles[ROLL] *= -1.0f;


            if ((pDominantTrackedRemoteNew->Buttons & ovrButton_GripTrigger) !=
                (pDominantTrackedRemoteOld->Buttons & ovrButton_GripTrigger)) {

                sendButtonActionSimple("inven");
                inventoryManagementMode = (pDominantTrackedRemoteNew->Buttons & ovrButton_GripTrigger) > 0;
            }
        }

        float controllerYawHeading = 0.0f;
        //off-hand stuff
        {
            flashlightoffset[0] = pOffTracking->HeadPose.Pose.Position.x - hmdPosition[0];
            flashlightoffset[1] = pOffTracking->HeadPose.Pose.Position.y - hmdPosition[1];
            flashlightoffset[2] = pOffTracking->HeadPose.Pose.Position.z - hmdPosition[2];

			vec2_t v;
			rotateAboutOrigin(-flashlightoffset[0], flashlightoffset[2], (cl.refdef.viewangles[YAW] - hmdorientation[YAW]), v);
			flashlightoffset[0] = v[0];
			flashlightoffset[2] = v[1];

            QuatToYawPitchRoll(pOffTracking->HeadPose.Pose.Orientation, 15.0f, flashlightangles);

            flashlightangles[YAW] += (cl.refdef.viewangles[YAW] - hmdorientation[YAW]);

			if (vr_walkdirection->value == 0) {
				controllerYawHeading = -cl.refdef.viewangles[YAW] + flashlightangles[YAW];
			}
			else
			{
				controllerYawHeading = 0.0f;//-cl.viewangles[YAW];
			}
        }

        //Right-hand specific stuff
        {
            ALOGV("        Right-Controller-Position: %f, %f, %f",
                  pDominantTracking->HeadPose.Pose.Position.x,
				  pDominantTracking->HeadPose.Pose.Position.y,
				  pDominantTracking->HeadPose.Pose.Position.z);

            //This section corrects for the fact that the controller actually controls direction of movement, but we want to move relative to the direction the
            //player is facing for positional tracking
            float multiplier = (vr_positional_factor->value) / (cl_forwardspeed->value *
					((pOffTrackedRemoteNew->Buttons & ovrButton_Trigger) ? 1.5f : 1.0f));

            vec2_t v;
            rotateAboutOrigin(-positionDeltaThisFrame[0] * multiplier,
                              positionDeltaThisFrame[2] * multiplier, /*cl.refdef.viewangles[YAW]*/ - hmdorientation[YAW], v);
            positional_movementSideways = v[0];
            positional_movementForward = v[1];

            ALOGV("        positional_movementSideways: %f, positional_movementForward: %f",
                  positional_movementSideways,
                  positional_movementForward);

            //Jump (B Button)
            handleTrackedControllerButton(pDominantTrackedRemoteNew,
                                          pDominantTrackedRemoteOld, domButton2, K_SPACE);

            //We need to record if we have started firing primary so that releasing trigger will stop firing, if user has pushed grip
            //in meantime, then it wouldn't stop the gun firing and it would get stuck
            static bool firingPrimary = false;

			if (!firingPrimary && dominantGripPushed && (GetTimeInMilliSeconds() - dominantGripPushTime) > vr_reloadtimeoutms->value)
			{
				//Use Inventory Item
				if ((pDominantTrackedRemoteNew->Buttons & ovrButton_Trigger) !=
					(pDominantTrackedRemoteOld->Buttons & ovrButton_Trigger)) {

					sendButtonActionSimple("invuse");
				}
			}
			else
			{
				//Fire Primary
				if ((pDominantTrackedRemoteNew->Buttons & ovrButton_Trigger) !=
					(pDominantTrackedRemoteOld->Buttons & ovrButton_Trigger)) {

					firingPrimary = (pDominantTrackedRemoteNew->Buttons & ovrButton_Trigger);

					if (inventoryManagementMode)
                    {
                        if (firingPrimary)
                            sendButtonActionSimple("invuse");
                    }
                    else
                    {
                        sendButtonAction("+attack", firingPrimary);
                    }
				}
			}

            //Duck with A
            if ((pDominantTrackedRemoteNew->Buttons & domButton1) !=
                (pDominantTrackedRemoteOld->Buttons & domButton1) &&
                ducked != DUCK_CROUCHED) {
                ducked = (pDominantTrackedRemoteNew->Buttons & domButton1) ? DUCK_BUTTON : DUCK_NOTDUCKED;
                sendButtonAction("+movedown", (pDominantTrackedRemoteNew->Buttons & domButton1));
            }

			//Weapon/Inventory Chooser
			static qboolean itemSwitched = false;
			if (between(-0.2f, pDominantTrackedRemoteNew->Joystick.x, 0.2f) &&
				(between(0.8f, pDominantTrackedRemoteNew->Joystick.y, 1.0f) ||
				 between(-1.0f, pDominantTrackedRemoteNew->Joystick.y, -0.8f)))
			{
				if (!itemSwitched) {
					if (between(0.8f, pDominantTrackedRemoteNew->Joystick.y, 1.0f))
					{
					    if (inventoryManagementMode)
                        {
                            sendButtonActionSimple("invprev");
                        }
                        else
                        {
                            sendButtonActionSimple("weapprev");
					    }
						
					}
					else
					{
                        if (inventoryManagementMode)
                        {
                            sendButtonActionSimple("invnext");
                        } 
                        else
                        {
                            sendButtonActionSimple("weapnext");
                        }
					}
					itemSwitched = true;
				}
			} else {
				itemSwitched = false;
			}
        }

        //Left-hand specific stuff
        {
            ALOGV("        Left-Controller-Position: %f, %f, %f",
                  pOffTracking->HeadPose.Pose.Position.x,
				  pOffTracking->HeadPose.Pose.Position.y,
				  pOffTracking->HeadPose.Pose.Position.z);

			//Use (Action)
			if ((pOffTrackedRemoteNew->Buttons & ovrButton_Joystick) !=
				(pOffTrackedRemoteOld->Buttons & ovrButton_Joystick)
				&& (pOffTrackedRemoteNew->Buttons & ovrButton_Joystick)) {

				Cvar_SetValue("vr_lasersight", 1.0f - vr_lasersight->value);

			}

			//Apply a filter and quadratic scaler so small movements are easier to make
			float dist = length(pOffTrackedRemoteNew->Joystick.x, pOffTrackedRemoteNew->Joystick.y);
			float nlf = nonLinearFilter(dist);
            float x = nlf * pOffTrackedRemoteNew->Joystick.x;
            float y = nlf * pOffTrackedRemoteNew->Joystick.y;

			//Adjust to be off-hand controller oriented
            vec2_t v;
            rotateAboutOrigin(x, y, controllerYawHeading, v);

            remote_movementSideways = v[0];
            remote_movementForward = v[1];
            ALOGV("        remote_movementSideways: %f, remote_movementForward: %f",
                  remote_movementSideways,
                  remote_movementForward);


            //show help computer
            if (((pOffTrackedRemoteNew->Buttons & offButton1) !=
                 (pOffTrackedRemoteOld->Buttons & offButton1)) &&
                (pOffTrackedRemoteOld->Buttons & offButton1)) {
                sendButtonActionSimple("cmd help");

#ifndef NDEBUG
				Cbuf_AddText( "cheats 1\n" );
				Cbuf_AddText( "give all\n" );
#endif
            }


            //We need to record if we have started firing primary so that releasing trigger will stop definitely firing, if user has pushed grip
            //in meantime, then it wouldn't stop the gun firing and it would get stuck
            static bool firingPrimary = false;

			//Run
			handleTrackedControllerButton(pOffTrackedRemoteNew,
										  pOffTrackedRemoteOld,
										  ovrButton_Trigger, K_SHIFT);

            static int increaseSnap = true;
			if (pDominantTrackedRemoteNew->Joystick.x > 0.6f)
			{
				if (increaseSnap)
				{
					snapTurn -= vr_snapturn_angle->value;
                    if (vr_snapturn_angle->value > 10.0f) {
                        increaseSnap = false;
                    }

                    if (snapTurn < -180.0f)
                    {
                        snapTurn += 360.f;
                    }
                }
			} else if (pDominantTrackedRemoteNew->Joystick.x < 0.4f) {
				increaseSnap = true;
			}

			static int decreaseSnap = true;
			if (pDominantTrackedRemoteNew->Joystick.x < -0.6f)
			{
				if (decreaseSnap)
				{
					snapTurn += vr_snapturn_angle->value;

					//If snap turn configured for less than 10 degrees
					if (vr_snapturn_angle->value > 10.0f) {
                        decreaseSnap = false;
                    }

                    if (snapTurn > 180.0f)
                    {
                        snapTurn -= 360.f;
                    }
				}
			} else if (pDominantTrackedRemoteNew->Joystick.x > -0.4f)
			{
				decreaseSnap = true;
			}
        }
    }

    //Save state
    rightTrackedRemoteState_old = rightTrackedRemoteState_new;
    leftTrackedRemoteState_old = leftTrackedRemoteState_new;
}