local QBCore = exports['qb-core']:GetCoreObject()

-- Check if player has a backpack equipped
function CheckForBackpack()
    local ped = PlayerPedId()
    
    -- Get the current bag drawable ID (component 5 is the bag slot)
    local currentBag = GetPedDrawableVariation(ped, 5)
    
    -- Check if this bag ID is in our config
    if Config.Backpacks[currentBag] then
        return currentBag
    end
    
    return nil
end

-- Open backpack inventory command
RegisterCommand('openbackpack', function()
    local backpackId = CheckForBackpack()
    
    if backpackId then
        local citizenId = QBCore.Functions.GetPlayerData().citizenid
        local backpackStashId = "backpack_" .. citizenId .. "_" .. backpackId
        
        TriggerServerEvent('backpack:server:openInventory', backpackStashId, backpackId)
    else
        lib.notify(Config.Notifications.noBackpack)
    end
end, false)

-- Register key binding
RegisterKeyMapping('openbackpack', 'Open Backpack Inventory', 'keyboard', Config.BackpackKey)

-- Listen for inventory open event to check if we should show backpack
RegisterNetEvent('inventory:client:OpenInventory', function()
    -- Small delay to let the main inventory open first
    Citizen.Wait(100)
    
    -- Check if player has a backpack and automatically show the backpack tab
    local backpackId = CheckForBackpack()
    if backpackId then
        local citizenId = QBCore.Functions.GetPlayerData().citizenid
        local backpackStashId = "backpack_" .. citizenId .. "_" .. backpackId
        
        TriggerServerEvent('backpack:server:openInventory', backpackStashId, backpackId)
    end
end)

-- Monitor for clothing changes to update backpack status
Citizen.CreateThread(function()
    local lastBackpack = nil
    
    while true do
        Citizen.Wait(1000) -- Check every second
        
        local currentBackpack = CheckForBackpack()
        
        -- If backpack status changed
        if currentBackpack ~= lastBackpack then
            lastBackpack = currentBackpack
            
            -- If player removed a backpack, we could add additional logic here
            if not currentBackpack then
                -- Player removed backpack
            else
                -- Player equipped backpack
            end
        end
    end
end)

-- Initialize when player loads
RegisterNetEvent('QBCore:Client:OnPlayerLoaded', function()
    -- Nothing needed here, backpack will be checked when inventory is opened
end)