local player = require("player")

if _G.Harp_Enabled == nil then _G.Harp_Enabled = true end

registerInventoryItemChange(function(slot, item)
    if _G.Harp_Enabled == false then return end

    -- Melody's Harp hit-zone is the middle 7 columns of the bottom row (slots 37-43)
    if slot < 37 or slot > 43 then return end

    -- Ensure we are only clicking inside the Harp interface
    local title = player.inventory.getChestTitle()
    if not title or not string.find(title, "Harp -") then return end

    if item then
        local nameStr = (item.name or ""):lower()
        local idStr   = (item.skyblock_id or ""):lower()

        if string.find(nameStr, "quartz") or string.find(idStr, "quartz") then
            player.inventory.leftClick(slot)
        end
    end
end)

-- Toggle command
registerCommand("harp", function()
    _G.Harp_Enabled = not _G.Harp_Enabled
    local status = _G.Harp_Enabled and "§aEnabled" or "§cDisabled"
    player.addMessage("§b§lHarp Script §7>> §fStatus: " .. status)
end)

local status = _G.Harp_Enabled and "§aEnabled" or "§cDisabled"
player.addMessage("§b§lHarp Script §7>> §fLoaded. Status: " .. status .. " §7(Use §e/harp §7to toggle)")