modinfo.lua - as good as I can get it

local _G = GLOBAL
local EQUIPSLOTS = _G.EQUIPSLOTS
local items_list = require("equip_list")

--[[ Get our Configs ]]
local ITEM_PREFABS = {}
local FX_PREFABS = {}

local function CategoryConfigs(data)
    for _, v in pairs(data) do
        local prefab = v.prefab
        if prefab then
            ITEM_PREFABS[prefab] = GetModConfigData(prefab)
        end
        if v.fx and v.fx.prefab then
            FX_PREFABS[v.fx.prefab] = GetModConfigData(v.fx.prefab)
        end
    end
end

for _, category in pairs(items_list) do
    CategoryConfigs(category.data)
end

--[[ Hide Helper Functions ]]
local function HideHeadSlot(inst)
    local AnimState = inst.AnimState
    local build = inst:GetSkinBuild() or AnimState:GetBuild()

    AnimState:ClearOverrideSymbol("headbase_hat")
    AnimState:ClearOverrideSymbol("swap_hat")
    AnimState:ClearOverrideSymbol("swap_face")
    AnimState:ClearOverrideSymbol("face")

    AnimState:Show("HAIR_NOHAT")
    AnimState:Show("HAIR")
    AnimState:Show("HEAD")

--You'd think at least one of these would work...
    AnimState:ShowSymbol("face")

    AnimState:OverrideSymbol("face", build, "face")

    AnimState:SetSymbolMultColour("face", 1, 1, 1, 1)
--None of them work...

-- This crashes the game, for some reason.
    --inst:ShowSkin()

end

local function HideBodySlot(AnimState)
    -- idk if this is bad practice but it works?
    AnimState:ClearOverrideSymbol("backpack")
    AnimState:ClearOverrideSymbol("swap_body_tall")
    AnimState:ClearOverrideSymbol("swap_body")
end

-- TODO: Determine what exactly `fx` for `alterguardianhat` and `minerhat` contain.
local function HideItemFx(fx)
    -- If `item.fx` is an entity itself, then we can just remove it directly
    if fx.entity and FX_PREFABS[fx.prefab] then
        fx:Remove()
        return
    elseif fx.entity and not EQUIPSLOTS[fx.prefab] then
        return
    end

    -- Otherwise, `item.fx` is a table of entities
    for _, v in pairs(fx) do
        if v.entity and FX_PREFABS[v.prefab] then
            v:Remove()
        end
    end
end

--In case FX still sticks (like with 'lunarplanthat_fx' and 'voidclothhat_fx')
local function RemovePlayerFX(inst)
    for _, ent in pairs(_G.Ents) do
        if ent and ent.entity and ent.entity:IsValid() and ent.prefab and FX_PREFABS[ent.prefab] then
            -- Check if it's following the player
            if ent.entity:GetParent() == inst and ent.Remove then
                ent:Remove()
            end
        end
    end
end

--[[ Hide Main Function ]]
local function Hide(inst)
    local AnimState = inst.AnimState
    local inv = inst.replica.inventory

    local head_conf, body_conf
    local headslot = inv:GetEquippedItem(EQUIPSLOTS.HEAD)
    if headslot then
        head_conf = ITEM_PREFABS[headslot.prefab]
    end

    local bodyslot = inv:GetEquippedItem(EQUIPSLOTS.BODY)
    if bodyslot then
        body_conf = ITEM_PREFABS[bodyslot.prefab]
    end

    if headslot and head_conf then
            RemovePlayerFX(inst)
        if headslot.fx then
            HideItemFx(headslot.fx)
        end
        HideHeadSlot(inst)
    end
    -- evaluate them separately in case both are equipped
    -- this also allows you to use individual configs for headslots and bodyslots
    if bodyslot and body_conf then
        HideBodySlot(AnimState)
        if bodyslot.fx then
            HideItemFx(bodyslot.fx)
        end
    end
end

AddPlayerPostInit(function(inst)
    inst:ListenForEvent("equip", Hide)
end)

items_list = nil