local E, L, V, P, G = unpack(select(2, ...)); --Import: Engine, Locales, PrivateDB, ProfileDB, GlobalDB
local AB = E:GetModule('ActionBars')
local S = E:GetModule('Skins')

local _G = _G
local unpack, select = unpack, select

local CreateFrame = CreateFrame
local GetItemInfo = GetItemInfo
local GetItemQualityColor = GetItemQualityColor
local GetContainerItemInfo = GetContainerItemInfo
local GetContainerItemQuestInfo = GetContainerItemQuestInfo
local GetInventoryItemTexture = GetInventoryItemTexture
local GetInventorySlotInfo = GetInventorySlotInfo
local GetContainerItemID = GetContainerItemID
local hooksecurefunc = hooksecurefunc
local BACKPACK_TOOLTIP = BACKPACK_TOOLTIP
local MAX_WATCHED_TOKENS = MAX_WATCHED_TOKENS
local NUM_CONTAINER_FRAMES = NUM_CONTAINER_FRAMES
local QUESTS_LABEL = QUESTS_LABEL
local TEXTURE_ITEM_QUEST_BORDER = TEXTURE_ITEM_QUEST_BORDER

local function UpdateBorderColors(button)
	button.backdrop:SetBackdropBorderColor(unpack(E.media.bordercolor))

	if button.type and button.type == QUESTS_LABEL then
		button.backdrop:SetBackdropBorderColor(1, 0.2, 0.2)
	elseif button.quality and button.quality > 1 then
		local r, g, b = GetItemQualityColor(button.quality)
		button.backdrop:SetBackdropBorderColor(r, g, b)
	end
end

local function BagButtonOnEnter(self)
	AB:BindUpdate(self, 'BAG')
end

local function SkinButton(button)
	if not button.skinned then
		for i=1, button:GetNumRegions() do
			local region = select(i, button:GetRegions())
			if region and region:IsObjectType('Texture') and region ~= button.searchOverlay and region ~= button.UpgradeIcon and region ~= button.ItemContextOverlay then
				region:SetTexture()
			end
		end

		button:CreateBackdrop()
		button:StyleButton()
		button.IconBorder:Kill()

		local icon = button.icon
		icon:SetInside()
		icon:SetTexCoord(unpack(E.TexCoords))

		button.searchOverlay:ClearAllPoints()
		button.searchOverlay:SetAllPoints(icon)

		if button.IconQuestTexture then
			button.IconQuestTexture:SetTexCoord(unpack(E.TexCoords))
			button.IconQuestTexture:SetInside(button)
		end

		if button.Cooldown then
			E:RegisterCooldown(button.Cooldown)
		end

		button.skinned = true

		-- bag keybind support from actionbar module
		if E.private.actionbar.enable then
			button:HookScript('OnEnter', BagButtonOnEnter)
		end
	end
end

local function SkinBagButtons(container, button)
	SkinButton(button)

	local bagID, slotID = container:GetID(), button:GetID()
	local texture, _, _, _, _, _, itemLink = GetContainerItemInfo(bagID, slotID)
	local isQuestItem, questId = GetContainerItemQuestInfo(bagID, slotID)
	_G[button:GetName()..'IconTexture']:SetTexture(texture)

	button.type, button.quality, button.itemID = nil, nil, nil
	button.ilink = itemLink

	if button.ilink then
		button.name, _, button.quality, _, _, button.type = GetItemInfo(button.ilink)
		button.itemID = GetContainerItemID(bagID, slotID)
	end

	if questId or isQuestItem then
		button.type = QUESTS_LABEL
	end

	UpdateBorderColors(button)
end

local function BagIcon(container, texture)
	if not container.PortraitButton then return end
	if not container.BagIcon then
		container.BagIcon = container.PortraitButton:CreateTexture()
		container.BagIcon:SetTexCoord(unpack(E.TexCoords))
		container.BagIcon:SetInside()
	end

	container.BagIcon:SetTexture(texture)
end

local function SkinContainer(container)
	if container and container.size then
		for b=1, container.size, 1 do
			local button = _G[container:GetName()..'Item'..b]
			if button then
				SkinBagButtons(container, button)
			end
		end
	end
end

local function SkinBags()
	for i = 1, NUM_CONTAINER_FRAMES, 1 do
		local container = _G['ContainerFrame'..i]
		if container and not container.backdrop then
			container:SetFrameStrata('HIGH')
			container:StripTextures(true)
			container:CreateBackdrop('Transparent')
			container.backdrop:SetInside()
			S:HandleCloseButton(_G[container:GetName()..'CloseButton'])
			S:HandleButton(container.PortraitButton)
			container.PortraitButton:Size(35)
			container.PortraitButton.Highlight:SetAlpha(0)
			container:HookScript('OnShow', SkinContainer)

			if i == 1 then
				_G.BackpackTokenFrame:StripTextures(true)

				for j = 1, MAX_WATCHED_TOKENS do
					local token = _G['BackpackTokenFrameToken'..j]
					token:CreateBackdrop()
					token.backdrop:SetOutside(token.icon)
					token.icon:SetTexCoord(unpack(E.TexCoords))
				end
			end
		end

		SkinContainer(container)
	end
end

local bagIconCache = {}
function S:ContainerFrame()
	if E.private.bags.enable or not (E.private.skins.blizzard.enable and E.private.skins.blizzard.bags) then return end

	_G.BankSlotsFrame:StripTextures()
	S:HandleTab(_G.BankFrameTab1)
	S:HandleTab(_G.BankFrameTab2)
	S:HandleButton(_G.ReagentBankFrame.DespositButton)
	_G.ReagentBankFrame:HookScript('OnShow', function(b)
		b:StripTextures()
	end)

	hooksecurefunc('ContainerFrame_Update', function(frame)
		local frameName = frame:GetName()
		for i=1, frame.size, 1 do
			local questTexture = _G[frameName..'Item'..i..'IconQuestTexture'];
			if questTexture:IsShown() and questTexture:GetTexture() == TEXTURE_ITEM_QUEST_BORDER then
				questTexture:Hide()
			end
		end

		local title = _G[frameName..'Name']
		if title and title.GetText then
			local name = title:GetText()
			if bagIconCache[name] then
				BagIcon(frame, bagIconCache[name])
			else
				if not name then return end
				if name == BACKPACK_TOOLTIP then
					bagIconCache[name] = _G.MainMenuBarBackpackButtonIconTexture:GetTexture()
				else
					bagIconCache[name] = select(10, GetItemInfo(name))
				end

				BagIcon(frame, bagIconCache[name])
			end
		end
	end)

	--Bank
	local BankFrame = _G.BankFrame
	hooksecurefunc('BankFrameItemButton_Update', function(button)
		if not BankFrame.backdrop then
			BankFrame:StripTextures(true)
			BankFrame:CreateBackdrop('Transparent')
			S:HandleButton(_G.BankFramePurchaseButton, true)
			S:HandleCloseButton(_G.BankFrameCloseButton)

			BankFrame.backdrop2 = CreateFrame('Frame', nil, _G.BankSlotsFrame, 'BackdropTemplate')
			BankFrame.backdrop2:SetTemplate()
			BankFrame.backdrop2:Point('TOPLEFT', _G.BankFrameItem1, 'TOPLEFT', -6, 6)
			BankFrame.backdrop2:Point('BOTTOMRIGHT', _G.BankFrameItem28, 'BOTTOMRIGHT', 6, -6)

			BankFrame.backdrop3 = CreateFrame('Frame', nil, _G.BankSlotsFrame, 'BackdropTemplate')
			BankFrame.backdrop3:SetTemplate()
			BankFrame.backdrop3:Point('TOPLEFT', _G.BankSlotsFrame.Bag1, 'TOPLEFT', -6, 6)
			BankFrame.backdrop3:Point('BOTTOMRIGHT', _G.BankSlotsFrame.Bag7, 'BOTTOMRIGHT', 6, -6)

			_G.BankFrameMoneyFrameInset:Kill()
			_G.BankFrameMoneyFrameBorder:Kill()
			BankFrame.backdrop = true;
		end

		SkinButton(button)

		if not button.levelAdjusted then
			button:SetFrameLevel(button:GetFrameLevel() + 1)
			button.levelAdjusted = true;
		end

		local inventoryID = button:GetInventorySlot()
		local textureName = GetInventoryItemTexture('player',inventoryID);

		if textureName then
			button.icon:SetTexture(textureName)
		elseif button.isBag then
			local _, slotTextureName = GetInventorySlotInfo('Bag'..button:GetID())
			button.icon:SetTexture(slotTextureName)
		end

		if not button.isBag then
			local container = button:GetParent():GetID();
			local _, _, _, _, _, _, itemLink = GetContainerItemInfo(container, button:GetID())
			local isQuestItem, questId = GetContainerItemQuestInfo(container, button:GetID())
			button.type = nil
			button.ilink = itemLink
			button.quality = nil

			if button.ilink then
				button.name, _, button.quality, _, _, button.type = GetItemInfo(button.ilink)
			end

			if isQuestItem or questId then
				button.type = QUESTS_LABEL
			end

			UpdateBorderColors(button)
		end
	end)

	local BagItemSearchBox = _G.BagItemSearchBox
	S:HandleEditBox(BagItemSearchBox)
	BagItemSearchBox:Height(BagItemSearchBox:GetHeight() - 5)

	local BankItemSearchBox = _G.BankItemSearchBox
	BankItemSearchBox:StripTextures()
	BankItemSearchBox:CreateBackdrop('Overlay')
	BankItemSearchBox.backdrop:Point('TOPLEFT', 10, -1)
	BankItemSearchBox.backdrop:Point('BOTTOMRIGHT', 4, 1)

	local AutoSort = _G.BagItemAutoSortButton
	AutoSort:StripTextures()
	--AutoSort:SetTemplate()
	AutoSort:CreateBackdrop()
	AutoSort.Icon = AutoSort:CreateTexture()
	AutoSort.Icon:SetTexture([[Interface\ICONS\INV_Pet_Broom]])
	AutoSort.Icon:SetTexCoord(unpack(E.TexCoords))
	AutoSort.Icon:SetInside()

	local Bags = CreateFrame('Frame')
	Bags:RegisterEvent('BAG_UPDATE')
	Bags:RegisterEvent('ITEM_LOCK_CHANGED')
	Bags:RegisterEvent('BAG_CLOSED')
	Bags:SetScript('OnEvent', SkinBags)
	SkinBags()
end

S:AddCallback('ContainerFrame')