local PopupMenuPanel = {}
local UIUtils = require("UI.Utils")
local GameplayStatics = import("GameplayStatics")
local WidgetBlueprintLibrary = import("WidgetBlueprintLibrary")
local KismetSystemLibrary = import("KismetSystemLibrary")


local function delay_adjust_content(menu_panel)
    local post_callback = function()
        local timer = KismetSystemLibrary.K2_SetTimerForNextTickDelegate(
            slua.createDelegate(function ()
                menu_panel:AdjustMenuContentSize()
                menu_panel.adjust_content_timer = nil
            end)
        )
        menu_panel.adjust_content_timer = timer
    end

    local timer = KismetSystemLibrary.K2_SetTimerForNextTickDelegate(
        slua.createDelegate(function () post_callback() end)
    )
    menu_panel.adjust_content_timer = timer
end

local function CreateMenuItem(panel)
    local pc = GameplayStatics.GetPlayerController(panel, 0)
    local widget = WidgetBlueprintLibrary.Create(panel, panel.MenuItemClass, pc)
    return widget
end


function PopupMenuPanel:ctor()
    self.adjust_content_timer = nil
end

function PopupMenuPanel:OnInitialized()
    self.BtnBackground.OnClicked:Add(function()
        UIUtils.CloseWidget(self)
    end)
end

function PopupMenuPanel:OnDestroy()
    print(self, "PopupMenuPanel:OnDestroy")
end

function PopupMenuPanel:PreConstruct(IsDesignTime)
    if not IsDesignTime then return end
    delay_adjust_content(self)
end


function PopupMenuPanel:Construct()
    delay_adjust_content(self)
end

function PopupMenuPanel:AdjustMenuContentSize()
    local all_child_height = 0
    for _, child in pairs(self.MenuItemContainer:GetAllChildren()) do
        local design_size = child:GetDesiredSize()
        all_child_height = all_child_height + design_size.Y
    end
    self.ImgBackground.Brush.ImageSize.Y = all_child_height + 20
end


function PopupMenuPanel:Refresh(args)
    self.MainOverlay.Slot:SetPosition(args[1])
    self:SetMenuContents(args[2])
end

function PopupMenuPanel:SetMenuContents(contents)
    self.MenuItemContainer:ClearChildren()
    for _, content in pairs(contents) do
        local widget = CreateMenuItem(self)
        self.MenuItemContainer:AddChildToVerticalBox(widget)
        widget:SetContent(content[1], content[2])
    end
    self:AdjustMenuContentSize()
end

return Class(nil, nil,PopupMenuPanel)