-- Yarr, we be pirates! oSkin/Skinner code. Tired of fucking supporting both mods and a bastard child of the first at once.
local _G = getfenv(0)

local backdrop = {
	bgFile = "Interface\\ChatFrame\\ChatFrameBackground", tile = true, tileSize = 16,
	edgeFile = "Interface\\Tooltips\\UI-Tooltip-Border", edgeSize = 16,
	insets = {left = 4, right = 4, top = 4, bottom = 4},
}

local gradientOn = {"VERTICAL", .1, .1, .1, 0, .25, .25, .25, 1}
local gradientOff = {"VERTICAL", 0, 0, 0, 1, 0, 0, 0, 1}

-- Pickup settings from installed mods
local sdb = (oSkin and oSkin.db.profile or nil) or (Skinner and Skinner.db.profile or nil) or {
	BackdropBorder = {r = 0.5, g = 0.5, b = 0.5, a = 1},
	Backdrop = {r = 0, g = 0, b = 0, a = 0.9},
	FadeHeight = {enable = false, value = 500, force = false},
	Gradient = true,
}


function XLoot:Skin(frame, header, bba, ba, fh, bd)
	if not frame then return end
	
	frame:SetBackdrop(bd or backdrop)
	frame:SetBackdropBorderColor(sdb.BackdropBorder.r or .5, sdb.BackdropBorder.g or .5, sdb.BackdropBorder.b or .5, bba or sdb.BackdropBorder.a or 1)
	frame:SetBackdropColor(sdb.Backdrop.r or 0, sdb.Backdrop.g or 0, sdb.Backdrop.b or 0, ba or sdb.Backdrop.a or .9)

	if not frame.tfade then frame.tfade = frame:CreateTexture(nil, "BORDER") end
	frame.tfade:SetTexture("Interface\\ChatFrame\\ChatFrameBackground")

	if sdb.FadeHeight.enable and (sdb.FadeHeight.force or not fh) then 
		fh = sdb.FadeHeight.value <= math.ceil(frame:GetHeight()) and sdb.FadeHeight.value or math.ceil(frame:GetHeight())
	end 

	frame.tfade:SetPoint("TOPLEFT", frame, "TOPLEFT", 4, -4)
	if fh then frame.tfade:SetPoint("BOTTOMRIGHT", frame, "TOPRIGHT", -4, -fh)
	else frame.tfade:SetPoint("BOTTOMRIGHT", frame, "BOTTOMRIGHT", -4, 4) end

	frame.tfade:SetBlendMode("ADD")
	frame.tfade:SetGradientAlpha(unpack(sdb.Gradient and gradientOn or gradientOff)) 
	
	if header and _G[frame:GetName().."Header"] then
		_G[frame:GetName().."Header"]:Hide()
		_G[frame:GetName().."Header"]:SetPoint("TOP", frame, "TOP", 0, 7)
	end
	
end

function XLoot:QualityBorder(button)
	local frame = button.wrapper or button
	local border = frame:CreateTexture(button:GetName() .. "QualBorder", "OVERLAY")
	border:SetTexture("Interface\\Buttons\\UI-ActionButton-Border")
	border:SetBlendMode("ADD")
	border:SetAlpha(0.5)
	border:SetHeight(button:GetHeight()*1.8)
	border:SetWidth(button:GetWidth()*1.8)
	border:SetPoint("CENTER", frame, "CENTER", 0, 1)
	border:Hide()
	return border
end

function XLoot:QualityBorderResize(frame, hmult, ymult, hoff, yoff)
	local border = _G[frame:GetName().."QualBorder"]
	local width, height = frame:GetWidth(), frame:GetHeight()
	border:SetHeight(height*(ymult or 1.62))
	border:SetWidth(width*(hmult or 1.72))
	border:SetPoint("CENTER", frame, "CENTER", hoff or 5, yoff or 1)
end

function XLoot:BackdropFrame(frame, bgcolor, bordercolor)
	frame:SetBackdrop(	{	bgFile = "Interface/Tooltips/UI-Tooltip-Background",
										edgeFile = "Interface/Tooltips/UI-Tooltip-Border", 
										tile = true, tileSize = 32, edgeSize = 15, 
										insets = { left = 4, right = 4, top = 4, bottom = 4 }})
	frame:SetBackdropColor(unpack(bgcolor))
	frame:SetBackdropBorderColor(unpack(bordercolor))
end

function XLoot:ItemButtonWrapper(button, woff, hoff, edgesize, borderinset)
	local wrapper = button.wrapper or CreateFrame("Frame", button:GetName().."Wrapper", button)
	wrapper:SetWidth(button:GetWidth()+(woff or 10))
	wrapper:SetHeight(button:GetHeight()+(hoff or 10))
	wrapper:ClearAllPoints()
	wrapper:SetPoint("CENTER", button, "CENTER")
	self:Skin(wrapper)
	if edgesize then
		local backdrop = wrapper:GetBackdrop()
		backdrop.edgeSize = edgesize
		wrapper:SetBackdrop(backdrop)
	end
	wrapper:SetBackdropColor(1, 1, 1, 0)
	wrapper:SetBackdropBorderColor(.7, .7, .7, 1)
	wrapper:Show()
	return wrapper
end

-- Substitute oSkin function, full credit to oSkin devs :)
function XLoot:oSkinTooltipModded(frame)
	if not frame.tfade then frame.tfade = frame:CreateTexture(nil, "BORDER") end
	frame.tfade:SetTexture("Interface\\ChatFrame\\ChatFrameBackground")

	frame.tfade:SetPoint("TOPLEFT", frame, "TOPLEFT",1,-1)
	frame.tfade:SetPoint("BOTTOMRIGHT", frame, "BOTTOMRIGHT",-1,1)

	frame.tfade:SetBlendMode("ADD")
	frame.tfade.alphagradient = { "VERTICAL", .1, .1, .1, 0, .2, .2, .2, 0.6 }
	frame.tfade:SetGradientAlpha("VERTICAL", .1, .1, .1, 0, .2, .2, .2, 0.6)

	frame.tfade:SetPoint("TOPLEFT", frame, "TOPLEFT", 6, -6)
	frame.tfade:SetPoint("BOTTOMRIGHT", frame, "TOPRIGHT", -6, -30)
end