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_Majiang/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
	-- 初始位置
	self._view.x = 0
	self._view.y = 0.675 * 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("lst_card")
-- 	lst_card:RemoveChildrenToPool()
-- 	local num = #cards
-- 	if num > 0 then
-- 		if num > 3 and num <= 28 then
-- 			self._view.width = 191 + ((num > 7 and 7 or num) - 3) * 38
-- 			self._view.height = 69 + (math.ceil(num / 7) - 1) * 56
-- 		else
-- 			self._view.width = 191
-- 			self._view.height = 69
-- 		end
-- 		for i = 1, num do
-- 			local item = lst_card:AddItemFromPool()
-- 			item:GetChild("icon").icon = "ui://Main_Majiang/202_" .. cards[i]
-- 		end
-- 		SetObjEnabled(self._view, true)
-- 	else
-- 		SetObjEnabled(self._view, false)
-- 	end
-- end

function M:FillData(cards, posX)		
	-- local btn_showtip = self._main_view._view:GetChild("btn_showtip")
	local lst_card = self._view:GetChild("lst_card")
	lst_card:RemoveChildrenToPool()
	local num = #cards
	if num > 0 then
		local o_width = 192
		local i_width = 93
		local column_gap = 43
		lst_card.columnGap = column_gap
		if num > 1 then
			self._view.width = o_width + (num - 1) * i_width
		else
			self._view.width = o_width
		end
		local count = 0
		for i = 1, num do
			local item = lst_card:AddItemFromPool()
			local card = cards[i]
			item:GetChild("icon").icon = "ui://Main_Majiang/" .. self:GetPrefix() .. "201_" .. card
			local left_num = self._main_view:CountCardLeftNum(card)
			local tex_num = item:GetChild("tex_num")
			tex_num.text = left_num .. "张"
			tex_num.visible = true
			count = count + left_num
		end
		self._view:GetChild("tex_num").text = count
		if posX then
			if posX + self._view.width > 1300 then
				posX = 1300 - self._view.width
			end
			self._view.x = posX
			SetObjEnabled(self._view, true)
		else
			-- self._view.x = self._main_view._view.width * 0.2 - self._view.width * 0.5
			SetObjEnabled(self._view, true)
		end
	else
		SetObjEnabled(self._view, false)
	end
end

function M:GetPrefix()
    return get_majiang_prefix(DataManager.CurrenRoom.game_id)
end

return M