local IsNoClipping      = false
local PlayerPed         = nil
local NoClipEntity      = nil
local Camera            = nil
local NoClipAlpha       = nil
local PlayerIsInVehicle = false
local ResourceName      = GetCurrentResourceName()

local MinY, MaxY        = -89.0, 89.0

--[[
        Configurable values are commented.
]]

-- Perspective values
local PedFirstPersonNoClip  = true  -- No Clip in first person when not in a vehicle
local VehFirstPersonNoClip  = false -- No Clip in first person when in a vehicle
local ESCEnable             = false -- Access Map during NoClip

-- Speed settings
local Speed                 = 1    -- Default: 1
local MaxSpeed              = 16.0 -- Default: 16.0

-- Key bindings
local MOVE_FORWARDS         = 32  -- Default: W
local MOVE_BACKWARDS        = 33  -- Default: S
local MOVE_LEFT             = 34  -- Default: A
local MOVE_RIGHT            = 35  -- Default: D
local MOVE_UP               = 44  -- Default: Q
local MOVE_DOWN             = 46  -- Default: E

local SPEED_DECREASE        = 14  -- Default: Mouse wheel down
local SPEED_INCREASE        = 15  -- Default: Mouse wheel up
local SPEED_RESET           = 348 -- Default: Mouse wheel click
local SPEED_SLOW_MODIFIER   = 36  -- Default: Left Control
local SPEED_FAST_MODIFIER   = 21  -- Default: Left Shift
local SPEED_FASTER_MODIFIER = 19  -- Default: Left Alt


local DisabledControls = function()
    HudWeaponWheelIgnoreSelection()
    DisableAllControlActions(0)
    DisableAllControlActions(1)
    DisableAllControlActions(2)
    EnableControlAction(0, 220, true)
    EnableControlAction(0, 221, true)
    EnableControlAction(0, 245, true)
    if ESCEnable then
        EnableControlAction(0, 200, true)
    end
end

local IsControlAlwaysPressed = function(inputGroup, control)
    return IsControlPressed(inputGroup, control) or IsDisabledControlPressed(inputGroup, control)
end

local IsPedDrivingVehicle = function(ped, veh)
    return ped == GetPedInVehicleSeat(veh, -1)
end

local SetupCam = function()
    local entityRot = GetEntityRotation(NoClipEntity)
    Camera = CreateCameraWithParams('DEFAULT_SCRIPTED_CAMERA', GetEntityCoords(NoClipEntity), vector3(0.0, 0.0, entityRot.z), 75.0)
    SetCamActive(Camera, true)
    RenderScriptCams(true, true, 1000, false, false)

    if PlayerIsInVehicle == 1 then
        AttachCamToEntity(Camera, NoClipEntity, 0.0, VehFirstPersonNoClip == true and 0.5 or -4.5, VehFirstPersonNoClip == true and 1.0 or 2.0, true)
    else
        AttachCamToEntity(Camera, NoClipEntity, 0.0, PedFirstPersonNoClip == true and 0.0 or -2.0, PedFirstPersonNoClip == true and 1.0 or 0.5, true)
    end
end

local DestroyCamera = function()
    SetGameplayCamRelativeHeading(0)
    RenderScriptCams(false, true, 1000, true, true)
    DetachEntity(NoClipEntity, true, true)
    SetCamActive(Camera, false)
    DestroyCam(Camera, true)
end

local GetGroundCoords = function(coords)
    local rayCast           = StartShapeTestRay(coords.x, coords.y, coords.z, coords.x, coords.y, -10000.0, 1, 0)
    local _, hit, hitCoords = GetShapeTestResult(rayCast)
    return (hit == 1 and hitCoords) or coords
end

local CheckInputRotation = function()
    local rightAxisX = GetControlNormal(0, 220)
    local rightAxisY = GetControlNormal(0, 221)

    local rotation = GetCamRot(Camera, 2)

    local yValue = rightAxisY * -5
    local newX
    local newZ = rotation.z + (rightAxisX * -10)
    if (rotation.x + yValue > MinY) and (rotation.x + yValue < MaxY) then
        newX = rotation.x + yValue
    end
    if newX ~= nil and newZ ~= nil then
        SetCamRot(Camera, vector3(newX, rotation.y, newZ), 2)
    end

    SetEntityHeading(NoClipEntity, math.max(0, (rotation.z % 360)))
end

RunNoClipThread = function()
    Citizen.CreateThread(function()
        while IsNoClipping do
            Citizen.Wait(0)
            CheckInputRotation()
            DisabledControls()

            if IsControlAlwaysPressed(2, SPEED_DECREASE) then
                Speed = Speed - 0.5
                if Speed < 0.5 then
                    Speed = 0.5
                end
            elseif IsControlAlwaysPressed(2, SPEED_INCREASE) then
                Speed = Speed + 0.5
                if Speed > MaxSpeed then
                    Speed = MaxSpeed
                end
            elseif IsDisabledControlJustReleased(0, SPEED_RESET) then
                Speed = 1
            end

            local multi = 1.0
            if IsControlAlwaysPressed(0, SPEED_FAST_MODIFIER) then
                multi = 2
            elseif IsControlAlwaysPressed(0, SPEED_FASTER_MODIFIER) then
                multi = 4
            elseif IsControlAlwaysPressed(0, SPEED_SLOW_MODIFIER) then
                multi = 0.25
            end

            if IsControlAlwaysPressed(0, MOVE_FORWARDS) then
                local pitch = GetCamRot(Camera, 0)

                if pitch.x >= 0 then
                    SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, 0.0, 0.5 * (Speed * multi), (pitch.x * ((Speed / 2) * multi)) / 89))
                else
                    SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, 0.0, 0.5 * (Speed * multi), -1 * ((math.abs(pitch.x) * ((Speed / 2) * multi)) / 89)))
                end
            elseif IsControlAlwaysPressed(0, MOVE_BACKWARDS) then
                local pitch = GetCamRot(Camera, 2)

                if pitch.x >= 0 then
                    SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, 0.0, -0.5 * (Speed * multi), -1 * (pitch.x * ((Speed / 2) * multi)) / 89))
                else
                    SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, 0.0, -0.5 * (Speed * multi), ((math.abs(pitch.x) * ((Speed / 2) * multi)) / 89)))
                end
            end

            if IsControlAlwaysPressed(0, MOVE_LEFT) then
                SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, -0.5 * (Speed * multi), 0.0, 0.0))
            elseif IsControlAlwaysPressed(0, MOVE_RIGHT) then
                SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, 0.5 * (Speed * multi), 0.0, 0.0))
            end

            if IsControlAlwaysPressed(0, MOVE_UP) then
                SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, 0.0, 0.0, 0.5 * (Speed * multi)))
            elseif IsControlAlwaysPressed(0, MOVE_DOWN) then
                SetEntityCoordsNoOffset(NoClipEntity, GetOffsetFromEntityInWorldCoords(NoClipEntity, 0.0, 0.0, -0.5 * (Speed * multi)))
            end

            local coords = GetEntityCoords(NoClipEntity)

            RequestCollisionAtCoord(coords.x, coords.y, coords.z)

            FreezeEntityPosition(NoClipEntity, true)
            SetEntityCollision(NoClipEntity, false, false)
            SetEntityVisible(NoClipEntity, false, false)
            SetEntityInvincible(NoClipEntity, true)
            SetLocalPlayerVisibleLocally(true)
            SetEntityAlpha(NoClipEntity, NoClipAlpha, false)
            if PlayerIsInVehicle == 1 then
                SetEntityAlpha(PlayerPed, NoClipAlpha, false)
            end
            SetEveryoneIgnorePlayer(PlayerPed, true)
            SetPoliceIgnorePlayer(PlayerPed, true)
        end
        StopNoClip()
    end)
end

StopNoClip = function()
    FreezeEntityPosition(NoClipEntity, false)
    SetEntityCollision(NoClipEntity, true, true)
    SetEntityVisible(NoClipEntity, true, false)
    SetLocalPlayerVisibleLocally(true)
    ResetEntityAlpha(NoClipEntity)
    ResetEntityAlpha(PlayerPed)
    SetEveryoneIgnorePlayer(PlayerPed, false)
    SetPoliceIgnorePlayer(PlayerPed, false)
    ResetEntityAlpha(NoClipEntity)
    SetPoliceIgnorePlayer(PlayerPed, true)

    if GetVehiclePedIsIn(PlayerPed, false) ~= 0 then
        while (not IsVehicleOnAllWheels(NoClipEntity)) and not IsNoClipping do
            Wait(0)
        end
        while not IsNoClipping do
            Wait(0)
            if IsVehicleOnAllWheels(NoClipEntity) then
                return SetEntityInvincible(NoClipEntity, false)
            end
        end
    else
        if (IsPedFalling(NoClipEntity) and math.abs(1 - GetEntityHeightAboveGround(NoClipEntity)) > 1.00) then
            while (IsPedStopped(NoClipEntity) or not IsPedFalling(NoClipEntity)) and not IsNoClipping do
                Wait(0)
            end
        end
        while not IsNoClipping do
            Wait(0)
            if (not IsPedFalling(NoClipEntity)) and (not IsPedRagdoll(NoClipEntity)) then
                return SetEntityInvincible(NoClipEntity, false)
            end
        end
    end
end

ToggleNoClip = function(state)
    IsNoClipping      = state or not IsNoClipping
    PlayerPed         = PlayerPedId()
    PlayerIsInVehicle = IsPedInAnyVehicle(PlayerPed, false)
    if PlayerIsInVehicle ~= 0 and IsPedDrivingVehicle(PlayerPed, GetVehiclePedIsIn(PlayerPed, false)) then
        NoClipEntity = GetVehiclePedIsIn(PlayerPed, false)
        SetVehicleEngineOn(NoClipEntity, not IsNoClipping, true, IsNoClipping)
        NoClipAlpha = PedFirstPersonNoClip == true and 0 or 51
    else
        NoClipEntity = PlayerPed
        NoClipAlpha = VehFirstPersonNoClip == true and 0 or 51
    end

    if IsNoClipping then
        FreezeEntityPosition(PlayerPed)
        SetupCam()
        PlaySoundFromEntity(-1, 'SELECT', PlayerPed, 'HUD_LIQUOR_STORE_SOUNDSET', 0, 0)

        if not PlayerIsInVehicle then
            ClearPedTasksImmediately(PlayerPed)
            if PedFirstPersonNoClip then
                Citizen.Wait(1000) -- Wait for the cinematic effect of the camera transitioning into first person
            end
        else
            if VehFirstPersonNoClip then
                Citizen.Wait(1000) -- Wait for the cinematic effect of the camera transitioning into first person
            end
        end
    else
        local groundCoords = GetGroundCoords(GetEntityCoords(NoClipEntity))
        SetEntityCoords(NoClipEntity, groundCoords.x, groundCoords.y, groundCoords.z)
        Citizen.Wait(50)
        DestroyCamera()
        PlaySoundFromEntity(-1, 'CANCEL', PlayerPed, 'HUD_LIQUOR_STORE_SOUNDSET', 0, 0)
    end

    QBCore.Functions.Notify(IsNoClipping and Lang:t('success.noclip_enabled') or Lang:t('success.noclip_disabled'))
    SetUserRadioControlEnabled(not IsNoClipping)

    if IsNoClipping then
        RunNoClipThread()
    end
end

RegisterNetEvent('qb-admin:client:ToggleNoClip', function()
    QBCore.Functions.TriggerCallback('qb-admin:isAdmin', function(isAdmin)
        if not isAdmin then return end
        ToggleNoClip(not IsNoClipping)
    end)
end)

AddEventHandler('onResourceStop', function(resourceName)
    if resourceName == ResourceName then
        FreezeEntityPosition(NoClipEntity, false)
        FreezeEntityPosition(PlayerPed, false)
        SetEntityCollision(NoClipEntity, true, true)
        SetEntityVisible(NoClipEntity, true, false)
        SetLocalPlayerVisibleLocally(true)
        ResetEntityAlpha(NoClipEntity)
        ResetEntityAlpha(PlayerPed)
        SetEveryoneIgnorePlayer(PlayerPed, false)
        SetPoliceIgnorePlayer(PlayerPed, false)
        ResetEntityAlpha(NoClipEntity)
        SetPoliceIgnorePlayer(PlayerPed, true)
        SetEntityInvincible(NoClipEntity, false)
    end
end)