local UIWindow = {}
UIWindow.__index = UIWindow

--> Services
local ReplicatedStorage = game:GetService("ReplicatedStorage")

--> Dependencies
local UIList = require(ReplicatedStorage.Base.UIList)

--> Variables
local FolderWindows = ReplicatedStorage:WaitForChild("UI"):WaitForChild("Windows")
local Utils = require(ReplicatedStorage.Tools.Utils)

local LocalPlayer = game.Players.LocalPlayer
local FolderPlayerGui = LocalPlayer:WaitForChild("PlayerGui")
local FolderStarterPlayerScripts = game.StarterPlayer:WaitForChild("StarterPlayerScripts")
local FolderUIInstanceScripts = FolderStarterPlayerScripts:WaitForChild("UI"):WaitForChild("InstanceScripts")

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function UIWindow:Init(UIManager: table, Data: table?)
    local self = {}
    self.UIManager = UIManager
    self.Data = Data or {}
    self.Variables = {}
    self.Connections = {}
    self.SignalConnections = {}
    self.UIRootName = nil
    self.UIParentName = nil
    self.CloseDestroy = true

    -- 运行时操作变量
    self.UIRoot = nil
    self.AutoInject = false
    
    return self
end

function UIWindow:SetData(Data: table?)
    self.Data = Data
    self:OnDataChanged()
end

-- 自动注入
function UIWindow:AutoInjectVariables()
    if not self.AutoInject then
        for varName, _ in pairs(self.Variables) do
            if typeof(varName) == "string" then
                local firstChar = string.sub(varName, 1, 1)
                local sixChar = string.sub(varName, 1, 6)
                local sevenChar = string.sub(varName, 1, 7)
                local target

                if firstChar == "_" then
                    if sixChar == "__list" then
                        local prefab = Utils:FindInDescendantsUI(self.UIRoot, varName)
                        if not prefab then
                            warn("没找到预制体", self.UIRoot, varName)
                        end
                        target = UIList:Init(prefab)
                        target.TopUI = self
                    elseif sevenChar == "__money" then
                        target = Utils:FindInDescendantsUI(self.UIRoot, varName)
                        -- 把脚本放到预制体下
                        local newScript = FolderUIInstanceScripts:FindFirstChild("Money"):Clone()
                        newScript.Parent = target
                    else
                        -- _开头，递归查找
                        target = Utils:FindInDescendantsUI(self.UIRoot, varName)
                    end

                    if not target then
                        error("自动注入失败：未找到UI节点 " .. varName)
                    end

                    self.Variables[varName] = target
                end
            end
        end
        self.AutoInject = true
    end
end

function UIWindow:OnOpenWindow()
    if not self.UIRoot then
        -- 创建UI根节点
        self.UIRoot = FolderWindows:FindFirstChild(self.UIRootName):Clone()
        self.UIRoot.Parent = FolderPlayerGui:WaitForChild(self.UIParentName)
    else
        self.UIRoot.Visible = true
        self:Refresh()
    end

    self:AutoInjectVariables()

end

function UIWindow:OnCloseWindow()
    if self.SignalConnections then
        for _, connection in pairs(self.SignalConnections) do
            connection:DisconnectAll()
        end
        self.SignalConnections = nil
    end

    if self.Connections then
        for _, connection in pairs(self.Connections) do
            connection:Disconnect()
        end
        self.Connections = nil
    end

    if self.CloseDestroy then
        self.UIRoot:Destroy()
        self.UIRoot = nil
    else
        self.UIRoot.Visible = false
    end
    self:Destroy()
end

--> 覆盖用
function UIWindow:OnDataChanged() end

function UIWindow:Refresh() end

function UIWindow:Destroy()
    if self.TopUI then self.TopUI = nil end

    if self.SignalConnections then
        for _, connection in pairs(self.SignalConnections) do
            connection:DisconnectAll()
        end
    end
    self.SignalConnections = nil
    
    if self.Connections then
        for _, connection in pairs(self.Connections) do
            print("进入断开连接")

            connection:Disconnect()
        end
    end
    self.Connections = nil

    -- 销毁数据
    if self.Data then
        if type(self.Data) == "table" then
            for k, v in pairs(self.Data) do
                self.Data[k] = nil
            end
        end
        self.Data = nil
    end

    -- 销毁实例内容
    if self.Variables then
        for k, v in pairs(self.Variables) do
            if v.Destroy then
                v:Destroy()
            end
            v = nil
        end
    end

    for k, v in pairs(self) do
        self[k] = nil
    end
    self = nil
end

return UIWindow