local HuTipView = {
	_view_start_pos = nil,
	_touch_start_pos = nil,
}

local M = HuTipView

function M.new(main_view)
    local self = {}
    self.class = "HuTipView"
    setmetatable(self,{__index = HuTipView})
    self._main_view = main_view
    self:init()
    return self
end

local function SetObjEnabled(obj, enabled)
	obj.visible = enabled
	obj.touchable = enabled
end
function M:OnTouchBegin(context)
	self._view_start_pos = Vector2(self._view.x, self._view.y)
	self._touch_start_pos = self._main_view._view:GlobalToLocal(Vector2(context.inputEvent.x, context.inputEvent.y))
end
function M:OnTouchMove(context)
	local xy = self._main_view._view:GlobalToLocal(Vector2.New(context.inputEvent.x,context.inputEvent.y))
	local dist = Vector2(xy.x - self._touch_start_pos.x, xy.y - self._touch_start_pos.y)
	local posx = self._view_start_pos.x + dist.x
	local posy = self._view_start_pos.y + dist.y
	local max_x = self._main_view._view.width - self._view.width
	local max_y = self._main_view._view.height - self._view.height
	self._view.x = posx < 0 and 0 or posx > max_x and max_x or posx
	self._view.y = posy < 0 and 0 or posy > max_y and max_y or posy
end

function M:init()
	self._view = UIPackage.CreateObjectFromURL("ui://Main_RunBeard/Hu_Tip")
	self._main_view._view:AddChild(self._view)
	local width = self._view.width
	local m_width = self._main_view._view.width
	local m_height = self._main_view._view.height
	-- self._view.x = 0.5 * m_width - 0.5 * width
	self._view.x = 0
	self._view.y = 0.7 * m_height
	SetObjEnabled(self._view, false)
	self._view.onTouchBegin:Add(handler(self, self.OnTouchBegin))
	self._view.onTouchMove:Add(handler(self, self.OnTouchMove))
end

function M:FillData(cards)		
	local lst_card = self._view:GetChild("tingpai")
	lst_card:RemoveChildrenToPool()
	local num = #cards
	if num > 0 then
		if num > 4 and num < 28 then
			self._view.width = 191 + ((num > 4 and 6 or num) - 3) * 38
			self._view.height = 69 + (math.ceil(num / 5) - 1) * 56
		end
		for i = 1, num do
			local item = lst_card:AddItemFromPool()
			item:GetChild("icon").icon = "ui://Main_RunBeard/202_1_" .. cards[i]
		end
		SetObjEnabled(self._view, true)
	else
		SetObjEnabled(self._view, false)
	end
end

return M