local InventoryArea = {}
local RoleUtils = require("GamePlay.Utils.RoleUtils")
local GameplayStatics = import("GameplayStatics")
local WidgetBlueprintLibrary = import("WidgetBlueprintLibrary")
local BusyActorManagerSubSystem = import("BusyActorManagerSubSystem")


function InventoryArea:ctor()
    self.widgets = {}
end

function InventoryArea:PreConstruct(bIsDesignTime)
    if not bIsDesignTime then return end
end

function InventoryArea:OnInitialized()
    self:InitInventoryLayout(self.RowGridCnt, self.ColGridCnt, self.GridClass)
end

function InventoryArea:InitInventoryLayout(row_cnt, col_cnt, cls)
    self.widgets = {}
    local pc = GameplayStatics.GetPlayerController(self, 0)
    for i=1, row_cnt do
        for j=1, col_cnt do
            local widget = WidgetBlueprintLibrary.Create(self, cls, pc)
            self.GridPanel:AddChildToGrid(widget, i-1, j-1)
            widget:SetData(nil)
            table.insert(self.widgets, widget)
        end
    end
end

function InventoryArea:OnSwitchIn(inventory_name)
    self:SetVisible(true)
    local inventory = nil
    if inventory_name == "BonfireInventory" then
        local sub_system = BusyActorManagerSubSystem.Get(self)
        local bonfire = sub_system:GetNearestBonfire()
        inventory = bonfire.Inventory
    elseif inventory_name == "RoleInventory" then
        local role = RoleUtils.GetRole(self)
        inventory = role.Inventory
    end

    if inventory == nil then return end

    inventory:ForEach(slua.createDelegate(function(idx, grid)
        local widget = self.widgets[idx+1]
        widget:SetData(grid)
        widget:SetInventoryInfo(inventory, idx)
    end))
end

function InventoryArea:OnSwitchOut(inventory_name)
    self:SetVisible(false)
end

return Class(nil, nil, InventoryArea)