using BepInEx;
using BepInEx.Configuration;
using UnityEngine;
using System;

namespace UniformAim
{
    [BepInPlugin("com.greg.tarkovuniformaim", "Uniform Aim for Tarkov", "1.1.3")]
    [BepInProcess("EscapeFromTarkov.exe")]

    public class Plugin : BaseUnityPlugin
    {
        //Bepinex.Configurator fields
        public static ConfigEntry<int> configFOV;
        int[] FOVRange = new int[2] { 50, 75 };
        ConfigEntry<bool> configFOVRangeOverride;

        public static ConfigEntry<int> configCoeff;
        public static ConfigEntry<int> configSens;
        ConfigEntry<bool> configDebug;

        //only for persistence
        ConfigEntry<float> inGameSens;

        public static float mySens = 1f;
        //public static float aimingSens;

        //sight data for hacky workarounds
        public static int SelectedScope = 0;
        public static int SelectedScopeMode = 0;
        public static bool isAiming = false;

        //human-friendly names for variables used later
        float baseCameraFOV = 75;
        public static float currentFPSCameraFOV = 75;
        public static float currentScopeCameraFOV = 75;

        Core core = new Core();
        Utils utils = new Utils();
        Vector2 FOVInfo;
        Vector2 ScopeInfo;

        void Awake()
        {
            new UpdateSensitivityPatch().Enable();
            new get_AimingSensitivityPatch().Enable();
            new get_SelectedScopeIndexPatch().Enable();
            new get_SelectedScopeModePatch().Enable();
            new get_IsAimingPatch().Enable();

            //override FOV range
            configFOVRangeOverride = Config.Bind("General", "FOV Override", false, new ConfigDescription("Override FOV range for compatibility with other mods. Requires restart."));
            if (configFOVRangeOverride.Value)
            {
                FOVRange[0] = 1; FOVRange[1] = 178;
            }

            //add configuration slider for field of view
            configFOV = Config.Bind("General", "FOV", 75, new ConfigDescription("In-game Field of View value", new AcceptableValueRange<int>(FOVRange[0], FOVRange[1])));

            //add coefficient slider
            configCoeff = Config.Bind("General", "Coefficient", 133, new ConfigDescription("Coefficient - increases sensitivity at higher zoom levels", new AcceptableValueRange<int>(1, 300)));

            //add sensitivity slider
            configSens = Config.Bind("General", "Sensitivity", 100, new ConfigDescription("Fine control over sensitivity while aiming", new AcceptableValueRange<int>(1, 200)));

            //enable debug logging
            configDebug = Config.Bind("Debug", "Enable logging?", false, new ConfigDescription("Enables logging in BepInEx console"));

            //settings for persistence, these values get updated when the in-game menu is opened
            inGameSens = Config.Bind("¡Do not touch unless necessary!", "In-game Aiming Sensitivity value", 0.5f, new ConfigDescription("Should update on its own - kept for persistence between sessions.", new AcceptableValueRange<float>(0.1f, 5.0f)));
        }
        void FixedUpdate()
        {
            //FixedUpdate() at 50Hz (Unity default) tickrate appears to resolve the issue of this script breaking when AI spawns
            Time.fixedDeltaTime = (1f / 50f);

            if (utils.SetRootObject() != null)
            {
                var rootObject = utils.SetRootObject();
                //only update these values if the menu has been opened, otherwise read the config
                if (rootObject.transform.Find("Game Settings").gameObject.activeInHierarchy)
                {
                    if (!configFOVRangeOverride.Value) { configFOV.Value = 50 + utils.GetInGameFOV(rootObject); }
                    inGameSens.Value = utils.GetInGameSens(rootObject);
                }
            }

            //check if the player is in the Hideout or in a Raid
            var isRunning = utils.checkIsReady();
            if (!isRunning) return;

            try { 
                if (Camera.main.isActiveAndEnabled != true) 
                {  return; } 
            }catch(NullReferenceException)
            {
                Logger.LogInfo("Main camera is disabled!");
            }

            //Print debug info in BepInEx console
            if (configDebug.Value) printDebug();

            if (isRunning)
            {
                //check if the player is aiming
                if (isAiming)
                {
                    //Grab FOV values for calculation
                    currentFPSCameraFOV = Camera.allCameras[0].fieldOfView; //Camera[0] tends to be FPS Camera
                    if (Camera.allCamerasCount > 1) { currentScopeCameraFOV= Camera.allCameras[1].fieldOfView; } //Camera[1] tends to be BaseOpticCamera

                    //Figure out if the FPSCamera is zoomed in, prevents the script from ticking while the player is healing
                    if (currentFPSCameraFOV < configFOV.Value) {
                        FOVInfo = new Vector2(currentFPSCameraFOV, currentScopeCameraFOV);
                        ScopeInfo = new Vector2(SelectedScope, SelectedScopeMode);
                        mySens = inGameSens.Value * core.CalculateSensitivity(core.DetermineCurrentFOV(FOVInfo.x, FOVInfo.y, (int)ScopeInfo.x, (int)ScopeInfo.y), configFOV.Value);
                    }
                }
            }
        }

        string lastDebugLog;
        void printDebug()
        {
            string debugLog = $"\nIn-Game FOV: {configFOV.Value} | In-Game Sens: {inGameSens.Value} | FOV Override: {configFOVRangeOverride.Value}" +
                           $"\nFPS Camera FOV: {currentFPSCameraFOV}V / {core.CalculateHFOV(currentFPSCameraFOV)}H | BaseOpticCamera FOV: {currentScopeCameraFOV}V / {core.CalculateHFOV(currentScopeCameraFOV)}H | CurrentFOV: {core.DetermineCurrentFOV(FOVInfo.x, FOVInfo.y, (int)ScopeInfo.x, (int)ScopeInfo.y)}V / {core.CalculateHFOV(core.DetermineCurrentFOV(FOVInfo.x, FOVInfo.y, (int)ScopeInfo.x, (int)ScopeInfo.y))}H" +
                           $"\nisAiming? {isAiming} | SelectedScope: {SelectedScope} | SelectedScopeMode:{SelectedScopeMode}" +
                           $"\nCalculated sensitivity: {core.CalculateSensitivity(core.DetermineCurrentFOV(FOVInfo.x, FOVInfo.y, (int)ScopeInfo.x, (int)ScopeInfo.y), baseCameraFOV)}" +
                           $"\nAspect Ratio: {Camera.main.aspect}" +
                           $"\nFinal Sensitivity: {mySens}";
            if (lastDebugLog != debugLog) { Logger.LogInfo(debugLog); lastDebugLog = debugLog; }
        }
    }
}