local function getUsedHotkeyButton(key)
    if not key or key == "" then
        return nil
    end

    local normalizedKey = key:lower()
    for _, actionbar in pairs(activeActionBars) do
        for _, button in pairs(actionbar.tabBar:getChildren()) do
            local hotkey = button.cache and button.cache.hotkey
            if hotkey and hotkey:lower() == normalizedKey then
                return button
            end
        end
    end
    return nil
end

local function invalidateHotkeyButtonCache()
    if clearHotkeyCache then
        clearHotkeyCache()
    end
end

local function isHotkeyUsedInternal(key, chatType, checkSecondary)
    if not key or not ApiJson.hasCurrentHotkeySet() then
        return false
    end

    for _, data in ipairs(ApiJson.getHotkeyEntries(chatType)) do
        if data["actionsetting"] and data["keysequence"] then
            local keyMatch = data["keysequence"]:lower() == key:lower()
            if checkSecondary then
                if data["secondary"] and keyMatch then
                    return true
                end
            elseif not data["secondary"] and keyMatch then
                return true
            end
        end
    end
    return false
end

local function isHotkeyUsed(key, secondary)
    if not secondary then
        secondary = false
    end

    local chatMode = modules.game_console.isChatEnabled() and 'chatOn' or 'chatOff'
    return isHotkeyUsedInternal(key, chatMode, secondary)
end

local function manageKeyPress(window, keyCode, keyboardModifiers, keyText)
    local keyCombo = determineKeyComboDesc(keyCode, keyboardModifiers, keyText)
    local resetCombo = {"Shift", "Ctrl", "Alt"}
    if table.contains(resetCombo, keyCombo) then
        window.display:setText('')
        window.display.combo = ''
        window.warning:setVisible(false)
        window.buttonOk:setEnabled(true)
        return true
    end

    local shortCut = (keyCombo == "HalfQuote" and "'" or keyCombo)
    window.display:setText(shortCut)
    window.display.combo = keyCombo
    window.warning:setVisible(false)
    window.buttonOk:setEnabled(true)
    if isHotkeyUsed(keyCombo) then
        window.warning:setVisible(true)
        window.warning:setText("This hotkey is already in use and will be overwritten.")
    end

    if table.contains(blockedKeys, keyCombo) then
        window.warning:setVisible(true)
        window.warning:setText("This hotkey is already in use and cannot be overwritten.")
        window.buttonOk:setEnabled(false)
    end
    return true
end

-- check game_hotkeys
local function isHotkeyUsedByGameHotkeys(keyCombo)
    if not keyCombo or keyCombo == "" then
        return false
    end

    if modules.game_hotkeys and modules.game_hotkeys.isHotkeyUsedByManager then
        return modules.game_hotkeys.isHotkeyUsedByManager(keyCombo)
    end

    return false
end

local function removeHotkeyFromGameHotkeys(keyCombo)
    if not keyCombo or keyCombo == "" then
        return false
    end

    if modules.game_hotkeys and modules.game_hotkeys.removeHotkeyByCombo then
        return modules.game_hotkeys.removeHotkeyByCombo(keyCombo)
    end

    return false
end

-- check keybind
local function isHotkeyUsedByKeybinds(keyCombo)
    if not keyCombo or keyCombo == "" then
        return false
    end

    if Keybind and Keybind.isKeyComboUsed then
        if Keybind.isKeyComboUsed(keyCombo, nil, nil, CHAT_MODE.ON) then
            return true
        end
        if Keybind.isKeyComboUsed(keyCombo, nil, nil, CHAT_MODE.OFF) then
            return true
        end
    end

    return false
end

function removeHotkeyFromActionBar(keyCombo)
    if not keyCombo or keyCombo == "" then
        return false
    end
    local button = getUsedHotkeyButton(keyCombo)
    if button then
        ApiJson.removeHotkey(button:getId())
        unbindHotkey(keyCombo)
        invalidateHotkeyButtonCache()
        updateButton(button)
        return true
    end
    return false
end
-- /*=============================================
-- =            Windows hotkeys html             =
-- =============================================*/
function assignHotkey(button)
    if ActionBarController.ui then
        ActionBarController:unloadHtml()
    end
    local actionbar = button:getParent():getParent()
    if actionbar.locked then
        alert('Action bar is locked')
        return
    end
    ActionBarController:loadHtml('html/hotkeys.html')
    local ui = ActionBarController.ui

    ActionBarController:scheduleEvent(function()
        ui:centerIn('parent')
    end, 1, "lazyHtml")

    ui:show()
    ui:raise()
    ui:focus()

    local assignWindow = ui
    assignWindow.hotkeyBlock = modules.game_hotkeys.createHotkeyBlock("actionbar_assign_hotkey")
    assignWindow.onDestroy = function()
        if assignWindow.hotkeyBlock then
            assignWindow.hotkeyBlock:release()
            assignWindow.hotkeyBlock = nil
        end
    end

    -- OT-MMO (23-oct): textos en español
    local barN = button:getParent():getParent().n
    local casilla = tonumber(button:getId():match('%.(%d+)$')) or 0
    local barDesc
    if barN < 4 then
        barDesc = (barN == 1 and 'Barra principal' or ('Barra ' .. barN)) .. ', casilla ' .. casilla
    else
        barDesc = 'Barra lateral ' .. barN .. ', casilla ' .. casilla
    end
    ui:setTitle('Tecla: ' .. barDesc)

    local chatMode = ActionBarController:findWidget("#chatMode")
    local display = ActionBarController:findWidget("#display")
    local desc = ActionBarController:findWidget("#desc")
    local warning = ActionBarController:findWidget("#warning")
    local buttonOk = ActionBarController:findWidget("#buttonOk")
    local buttonClear = ActionBarController:findWidget("#buttonClear")
    local buttonClose = ActionBarController:findWidget("#buttonClose")

    desc:setText('Pulsa la tecla o la combinación (por ejemplo Shift+1). Aceptar la asigna; Quitar deja la casilla sin tecla.')

    local currentHotkey = (button.cache and button.cache.hotkey) or ""
    if currentHotkey ~= "" then
        display:setText(currentHotkey)
    else
        display:setText("")
    end
    display.combo = currentHotkey

    local chatOn = modules.game_console.isChatEnabled()
    if chatOn then
        chatMode:setText('Modo: con el chat activo')
    else
        chatMode:setText('Modo: sin chat')
    end

    ui:grabKeyboard()
    ui.onKeyDown = function(window, keyCode, keyboardModifiers, keyText)
        local keyCombo = determineKeyComboDesc(keyCode, keyboardModifiers, keyText)
        local resetCombo = {"Shift", "Ctrl", "Alt"}
        if table.contains(resetCombo, keyCombo) then
            display:setText('')
            display.combo = ''
            warning:setVisible(false)
            buttonOk:setEnabled(true)
            return true
        end

        local shortCut = (keyCombo == "HalfQuote" and "'" or keyCombo)
        local fixbugHtmlSystem = ActionBarController.ui.display:getFirstChild()
        if fixbugHtmlSystem then
            fixbugHtmlSystem:setText(shortCut) -- Temp
        end
        display:setText(shortCut)
        display.combo = keyCombo
        warning:setVisible(false)
        buttonOk:setEnabled(true)
        if isHotkeyUsed(keyCombo) then
            warning:setVisible(true)
            warning:setText("Esa tecla ya está en otra casilla: pasará a esta.")
        end

        -- check game_hotkeys
        if isHotkeyUsedByGameHotkeys(keyCombo) then
            warning:setVisible(true)
            warning:setText("Esa tecla ya tiene un atajo: se sustituirá.")
        end

        -- check keybinds
        if isHotkeyUsedByKeybinds(keyCombo) then
            warning:setVisible(true)
            warning:setText("Esa tecla la usa el juego (moverse, ventanas...): elige otra.")
            buttonOk:disable()
            return true
        end
        if table.contains(blockedKeys, keyCombo) then
            warning:setVisible(true)
            warning:setText("Esa tecla no se puede usar.")
            buttonOk:setEnabled(false)
        end
        return true
    end

    local okFunc = function()
        local lastHotkey = (button.cache and button.cache.hotkey) or ""
        local hotkey = display.combo or ""

        if hotkey == "" then
            if lastHotkey ~= "" then
                ApiJson.removeHotkey(button:getId())
                unbindHotkey(lastHotkey)
                invalidateHotkeyButtonCache()
                updateButton(button)
            end

            ActionBarController:unloadHtml()
            return true
        end

        ApiJson.clearHotkey(hotkey)
       if isHotkeyUsedByGameHotkeys(hotkey) then
            removeHotkeyFromGameHotkeys(hotkey)
        end
        local usedButton = getUsedHotkeyButton(hotkey)
        if usedButton then
            ApiJson.removeHotkey(usedButton:getId())
            unbindHotkey(hotkey)
        else
            unbindHotkey(hotkey)
        end

        if lastHotkey ~= "" and lastHotkey ~= hotkey then
            ApiJson.removeHotkey(button:getId())
            unbindHotkey(lastHotkey)
        end

        ApiJson.updateActionBarHotkey("TriggerActionButton_" .. button:getId(), hotkey)
        invalidateHotkeyButtonCache()
        if usedButton and usedButton ~= button then
            updateButton(usedButton)
        end
        updateButton(button)

        ActionBarController:unloadHtml()
    end

    local clearFunc = function()
        local assignedHotkey = (button.cache and button.cache.hotkey) or ""
        ApiJson.removeHotkey(button:getId())
        if assignedHotkey ~= '' then
            unbindHotkey(assignedHotkey)
        end

        invalidateHotkeyButtonCache()
        updateButton(button)
        display:setText('')
        display.combo = ''
        ActionBarController:unloadHtml()
    end

    local closeFunc = function()
        ActionBarController:unloadHtml()
    end

    buttonOk.onClick = okFunc
    buttonClear.onClick = clearFunc
    buttonClose.onClick = closeFunc

    ui.onEnter = okFunc
    ui.onEscape = closeFunc
end

function unbindHotkey(hotkey)
    if not gameRootPanel or not hotkey or hotkey == '' then
        return
    end

    g_keyboard.unbindKeyPress(hotkey, nil, gameRootPanel)
    g_keyboard.unbindKeyDown(hotkey, nil, gameRootPanel)
    g_keyboard.unbindKeyUp(hotkey, nil, gameRootPanel)
end