--[[
	Enchantrix Addon for World of Warcraft(tm).
	Version: 9.1.BETA.5.13 (OneMawTime)
	Revision: $Id$
	URL: http://enchantrix.org/

	Automatic disenchant scanner.

	License:
		This program is free software; you can redistribute it and/or
		modify it under the terms of the GNU General Public License
		as published by the Free Software Foundation; either version 2
		of the License, or (at your option) any later version.

		This program is distributed in the hope that it will be useful,
		but WITHOUT ANY WARRANTY; without even the implied warranty of
		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
		GNU General Public License for more details.

		You should have received a copy of the GNU General Public License
		along with this program(see GPL.txt); if not, write to the Free Software
		Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

	Note:
		This AddOn's source code is specifically designed to work with
		World of Warcraft's interpreted AddOn system.
		You have an implicit license to use this AddOn with these facilities
		since that is its designated purpose as per:
		http://www.fsf.org/licensing/licenses/gpl-faq.html#InterpreterIncompat
]]
Enchantrix_RegisterRevision("$URL$", "$Rev$")

local auto_de_session_ignore_list = {}
local auto_de_frame
local auto_de_prompt

local showPrompt
local hidePrompt
local clearPrompt

local auto_de_tooltip = LibStub("nTipHelper:1")

-- TODO - ccox - are these constants available from Blizzard somewhere?
local idDisenchant = 13262
local idMilling = 51005
local idProspecting = 31252

-- Locals to handle Container functions moved to C_Container namespace in some clients (but not others) ### hybrid
local GetContainerItemLink = C_Container and C_Container.GetContainerItemLink or GetContainerItemLink
local GetContainerNumSlots = C_Container and C_Container.GetContainerNumSlots or GetContainerNumSlots

-- GetContainerItemInfo needs special handling due to different return values. In this file we only use it to get stack count
local GetContainerItemCount
if C_Container and C_Container.GetContainerItemInfo then
	GetContainerItemCount = function(bag, slot)
		local info = C_Container.GetContainerItemInfo(bag, slot)
		if info then
			return info.stackCount
		end
	end
else
	GetContainerItemCount = function(bag, slot)
		local _, count = GetContainerItemInfo(bag, slot)
		return count
	end
end

-- Control value based on current client used to exclude clients that are unable to handle auto milling or prospecting
-- Currently those are Vanilla Classic and Retail
local canProspectOrMill = WOW_PROJECT_ID ~= WOW_PROJECT_CLASSIC and WOW_PROJECT_ID ~= WOW_PROJECT_MAINLINE

--------------------------------------------------------------------------------
-- Debug stuff

local DebugLib = LibStub("DebugLib")
local debug, assert
if DebugLib then
	debug, assert = DebugLib("Enchantrix")
else
	function debug() end
	assert = debug
end

local function debugSpam(...)
--	local message = debug:Dump(...)
--	local r, g, b = 0, 0.75, 1
--	DEFAULT_CHAT_FRAME:AddMessage("AutoDe: " .. message, r, g, b)
end

local function eventSpam(...)
--	local message = debug:Dump(...)
--	debugSpam("Event: " .. message)
end

--------------------------------------------------------------------------------
-- Item ignore list and utility functions

local function itemStringFromLink(link)
	local _, _, itemString = string.find(link, "^|c%x+|H(.+)|h%[.+%]")
	return itemString
end

local function genericizeItemLink(link)
	local _, _, item = link:find("item:(%d+):")
	return item
end

local function ignoreItemPermanent(link)
	local genericLink = genericizeItemLink(link)
	Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeIgnorePermanent"):format(link))
	AutoDisenchantIgnoreList[genericLink] = true
end

local function ignoreItemSession(link, silent)
	local genericLink = genericizeItemLink(link)
	if not silent then
		Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeIgnoreSession"):format(link))
	end
	auto_de_session_ignore_list[genericLink] = true
end

local function isItemIgnored(link)
	local genericLink = genericizeItemLink(link)
	return auto_de_session_ignore_list[genericLink] or AutoDisenchantIgnoreList[genericLink]
end


-- check item quality and reason for purchase (if BeanCounter is installed)
local function isAutoDisenchantAllowed(link, count)
	local _, _, quality, _ = GetItemInfo(link)

	if (quality == 3) and (not Enchantrix.Settings.GetSetting('AutoDeRareItems')) then
		return false
	end

	if (quality == 4) and (not Enchantrix.Settings.GetSetting('AutoDeEpicItems')) then
		return false
	end

	-- this WILL NOT WORK for milling or prospecting
	-- because changing the stack size in any way will change the reason returned by beancounter
	if Enchantrix.Settings.GetSetting('AutoDeOnlyIfBoughtForDE') then
		if (BeanCounter and BeanCounter.API) then
			local reason = BeanCounter.API.getBidReason(link, count)
			if (reason == "Disenchant" or reason == "EnchantMats") then
				return true;
			else
				return false;
			end
		else
			-- tell the user that beancounter is required
			Enchantrix.Util.ChatPrint(_ENCH("BeanCounterRequired"))
			Enchantrix.Settings.SetSetting('AutoDeOnlyIfBoughtForDE', false)
		end
	end

	return true
end

local function nameFromIgnoreListItem(item)
	local name = GetItemInfo(item)
	return name
end

--------------------------------------------------------------------------------
-- Main logic

local moduleState
local function setState(newState)
	if newState ~= state then
		--debugSpam("State: " .. newState)
		moduleState = newState
	end
end

-- declared local at top
local function isState(state)
	return moduleState == state
end

local function getDisenchantOrProspectValue(link, count)
	local _, _, quality, level = GetItemInfo(link)

    --debugSpam("Checking Item ", link );
	if not (quality and level) then
		debugSpam("Item ", link, "quality and level nil" );
	    return
    end

    local effLevel = GetDetailedItemLevelInfo(link)
    if effLevel then
        level = effLevel
    end

	if quality >= 2 then
		local enchSkillRequired = Enchantrix.Util.DisenchantSkillRequiredForItemLevel(level, quality)
        --debugSpam( "enchantskill required ", enchSkillRequired );
		if (enchSkillRequired and enchSkillRequired > 0) and Enchantrix.Util.GetUserEnchantingSkill() >= enchSkillRequired then
			local hsp, median, baseline, valFive = Enchantrix.Storage.GetItemDisenchantTotals(link)
			if (not hsp) or (hsp == 0) then
				-- what to do when Auc4 isn't loaded, but Auc5 is
				-- or when you have no data for mat prices
				if valFive and valFive > 0 then
					hsp = valFive
				else
					hsp = baseline
				end
			end
			if hsp and hsp > 0 then
				return hsp, idDisenchant -- _ENCH('ArgSpellname')
--			else debugSpam("Item ", link, "has zero Disenchant value?" );
			end
		end
	end

	-- some quality 2 ores are now prospectable

	if count >= 5 and canProspectOrMill then

-- TODO - ccox - these could share some code
		local jcSkillRequired = Enchantrix.Util.JewelCraftSkillRequiredForItem(link)
--debugSpam("Item ", link, "skill required", jcSkillRequired, Enchantrix.Util.GetUserJewelCraftingSkill() );
		if (jcSkillRequired and jcSkillRequired > 0 and Enchantrix.Util.GetUserJewelCraftingSkill() >= jcSkillRequired) then
--debugSpam("Item ", link, "skill passed" );
			local prospect = Enchantrix.Storage.GetItemProspects(link)
			if prospect then
--debugSpam("Item ", link, "prospect results passed" );
				local prospectValue = 0
				for result, yield in pairs(prospect) do
					local hsp, median, baseline, valFive = Enchantrix.Util.GetReagentPrice(result)
					if (not hsp) or (hsp == 0) then
						-- what to do when Auc4 isn't loaded, but Auc5 is
						-- or when you have no data for mat prices
						if valFive and valFive > 0 then
							hsp = valFive
						else
							hsp = baseline
						end
					end
					local value = (hsp or 0) * yield
					prospectValue = prospectValue + value
				end
                --if (prospectValue == 0) then debugSpam("Item ", link, "has zero prospect value?" ); end	-- DEBUGGING
				return prospectValue, idProspecting -- _ENCH('ArgSpellProspectingName')
			end
		end

		local inscriptionSkillRequired = Enchantrix.Util.InscriptionSkillRequiredForItem(link)
		--debugSpam("Item ", link, "skill required", inscriptionSkillRequired, Enchantrix.Util.GetUserInscriptionSkill() );
		if (inscriptionSkillRequired and inscriptionSkillRequired > 0 and Enchantrix.Util.GetUserInscriptionSkill() >= inscriptionSkillRequired) then
--debugSpam("Item ", link, "skill passed" );
			local milling = Enchantrix.Storage.GetItemMilling(link)
			if milling then
--debugSpam("Item ", link, "mill results passed" );
				local millingValue = 0
				for result, yield in pairs(milling) do
					local hsp, median, baseline, valFive = Enchantrix.Util.GetReagentPrice(result)
					if (not hsp) or (hsp == 0) then
						-- what to do when Auc4 isn't loaded, but Auc5 is
						-- or when you have no data for mat prices
						if valFive and valFive > 0 then
							hsp = valFive
						else
							hsp = baseline
						end
					end
					local value = (hsp or 0) * yield
					millingValue = millingValue + value
				end
				--if (millingValue == 0) then debugSpam("Item ", link, "has zero milling value?" ); end	 -- DEBUGGING
				return millingValue, idMilling -- _ENCH('ArgSpellMillingName')
			end
		end

	end
end


-- check one bag (to save time when we know something moved in just this bag)
local function findItemInOneBag(bag, findLink)
	for slot = 1, GetContainerNumSlots(bag) do
		local count = GetContainerItemCount(bag, slot)
    	local link = GetContainerItemLink(bag, slot)
		if link and (not findLink or link == findLink) then
			if not findLink and link == auto_de_prompt.link
				and bag == auto_de_prompt.bag and slot == auto_de_prompt.slot		-- WoW 6.x has a zombie problem for the same link, not just location
				and count == auto_de_prompt.count then
				-- items sometimes linger after they've been disenchanted and looted
				debugSpam("Skipping zombie item ", link, bag, slot )
			else
				if (not isItemIgnored(link)) and isAutoDisenchantAllowed(link, count) then
					local value, spell = getDisenchantOrProspectValue(link, count)
					if value and value > 0 then
						--debugSpam("found auto item ", value, link, bag, slot )
						return link, bag, slot, value, spell
					end
				end
			end
		end
	end
end


-- check all bags for disenchantable items
local function findItemInBags(findLink)
	debugSpam("scanning bags")
	for bag = 0, 4 do
		local link, bag, slot, value, spell = findItemInOneBag(bag, findLink)
		if (spell) then
			return link, bag, slot, value, spell
		end
	end
end


local function beginScan(bag)
	setState("scan")

	-- do not scan while in combat
	if InCombatLockdown() or UnitAffectingCombat("player") then
		debugSpam("aborting scan during combat")
		return
	end

	hidePrompt()		-- we can't hide the UI during combat

	local link, outBag, slot, value, spell
	if (bag and bag >= 0 and bag <= 4) then	-- exclude bank bags, we can't DE from the bank
		link, outBag, slot, value, spell = findItemInOneBag(bag)
	else
		link, outBag, slot, value, spell = findItemInBags()
	end
	if link then
		-- prompt for disenchant
		setState("prompt")
		showPrompt(link, outBag, slot, value, spell)
	end
end



local function onEvent(...)
	if isState("sleep") or isState("disabled") then return end

	local _, event, arg1, arg2, arg3, arg4, arg5 = ...;
	if event == "LOOT_OPENED" then
		if isState("loot_wait") then
			-- loot window opened - grab the spoils
			eventSpam(...)
			for slot = 1, GetNumLootItems() do
				LootSlot(slot)
			end
			setState("loot")
		else
			-- see if the user wants to auto-loot their manual disenchants
			if (Enchantrix.Settings.GetSetting('autoLootDE')) then
				eventSpam(...)

				-- make sure all results are DE/prospect/milling results
				for slot = 1, GetNumLootItems() do
					if (GetLootSlotType(slot) ~= LOOT_SLOT_ITEM) then return end
					local link = GetLootSlotLink(slot)
					local linkType, itemID = auto_de_tooltip:DecodeLink(link)
					if linkType ~= "item" or not itemID then return end

					if ( not
						(Enchantrix.Constants.ReverseDisenchantLevelList[itemID]
						 or Enchantrix.Constants.ReverseProspectingSources[itemID]
						 or Enchantrix.Constants.ReversePigmentList[itemID])) then
						--eventSpam("item "..itemID.." not in our lists")
						return		-- this is not a DE,prospect, or milling result
					end
				end

				for slot = 1, GetNumLootItems() do
					LootSlot(slot)
				end

			end
		end
	elseif event == "LOOT_CLOSED" then
		if isState("loot") then
			-- looting done - continue scanning
			eventSpam(...)
			beginScan()
		end
	elseif event == "UNIT_SPELLCAST_SENT" then
		-- BfA: arg1 == "player"
		--      arg2 is always NIL,
		--      arg3 is complex string guid? "Cast-3-3886-1-16283-13262-XXXXXXXXXX"
		--      arg4 is a number (13262)
            eventSpam(...)
		if isState("prompt") and arg1 == "player" and arg4 == auto_de_prompt.Yes:GetAttribute("spell") then
			-- disenchant started - wait for completion
			eventSpam(...)
			if (Enchantrix.Settings.GetSetting('chatShowFindings')) then
				if arg4 == idProspecting then
					Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeProspecting"):format(auto_de_prompt.link))
				elseif arg4 == idDisenchant then
					Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeDisenchanting"):format(auto_de_prompt.link))
				elseif arg4 == idMilling then
					Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeMilling"):format(auto_de_prompt.link))
				end
			end
			hidePrompt()
			setState("cast")
		end
	elseif event == "UNIT_SPELLCAST_INTERRUPTED" then
		if arg1 == "player" and arg3 == auto_de_prompt.Yes:GetAttribute("spell") then
			-- interrupted - revert to scanning
			eventSpam(...)
			hidePrompt()
			beginScan()
		end
	elseif event == "UNIT_SPELLCAST_FAILED" then
		if arg1 == "player" and arg3 == auto_de_prompt.Yes:GetAttribute("spell") then
			-- failed - revert to scanning
			eventSpam(...)
			hidePrompt()
			beginScan()
		end
	elseif event == "UNIT_SPELLCAST_SUCCEEDED" then
		if isState("cast") and arg1 == "player" and arg3 == auto_de_prompt.Yes:GetAttribute("spell") then
			-- completed - wait for loot window to come up
			eventSpam(...)
			setState("loot_wait")
		end
	elseif event == "BAG_UPDATE" then
		if isState("scan") then
			-- bag contents changed - rescan bags
			eventSpam(...)
			beginScan(arg1)
		elseif isState("prompt") and arg1 == auto_de_prompt.bag then
			-- verify that our item is still there
		    local link = GetContainerItemLink(auto_de_prompt.bag, auto_de_prompt.slot)
			if link ~= auto_de_prompt.link then
				eventSpam(...)
				debugSpam(auto_de_prompt.link, "item changed/moved/disappeared")
				hidePrompt()

				local bag, slot, value, spell
				link, bag, slot, value, spell = findItemInBags(auto_de_prompt.link)
				if link then
					-- moved
					debugSpam("  found moved item at [" .. bag .. "," .. slot .. "]")
					showPrompt(link, bag, slot, value, spell)
				else
					-- sold, traded, banked, destroyed, ...
					debugSpam("  item not found, cancelling", link)
					local spellName = auto_de_prompt.Yes:GetAttribute("spell")
					if spellName == idProspecting then
						Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeProspectCancelled"))
					elseif spellName == idMilling  then
						Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeMillingCancelled"))
					elseif spellName == idDisenchant  then
						Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeDisenchantCancelled"))
					end
					hidePrompt()
					beginScan()
				end
			end
		end
	end
end

local updatedAgo = 0
local function onUpdate(frame, elapsed)
	if isState("disabled") then return end

	-- only handle initialization and settings changes in here, so don't need to
	-- update often. most of the grunt work happens in the event handler

	local updateEvery = 1
	updatedAgo = updatedAgo + elapsed
	if updatedAgo < updateEvery then return end

	local enabledInOptions = Enchantrix.Settings.GetSetting('AutoDisenchantEnable')
	if enabledInOptions then
		if isState("sleep") or isState("init") then
			if Enchantrix.Util.GetUserEnchantingSkill() >= 1
				or Enchantrix.Util.GetUserJewelCraftingSkill() >= 1
				or Enchantrix.Util.GetUserInscriptionSkill() >= 1 then
				Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeActive"))
				beginScan()
			elseif isState("init") then
				Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeDisabled"))
				setState("disabled")
			end
		end
	else
		if isState("prompt") or isState("scan") or isState("init") then
			Enchantrix.Util.ChatPrint(_ENCH("FrmtAutoDeInactive"))
			if isState("prompt") then
				clearPrompt()
			end
			setState("sleep")
		end
	end

	updatedAgo = 0
end

--------------------------------------------------------------------------------
-- Prompt handling

local function getGSC(money)
	if (money == nil) then money = 0 end
	local g = math.floor(money / 10000)
	local s = math.floor((money - (g*10000)) / 100)
	local c = math.ceil(money - (g*10000) - (s*100))
	return g,s,c
end

local function getTextGSC(money)
	if (type(money) ~= "number") then return end

	local TEXT_NONE = "0"

	local GSC_GOLD="ffd100"
	local GSC_SILVER="e6e6e6"
	local GSC_COPPER="c8602c"
	local GSC_START="|cff%s%d%s|r"
	local GSC_PART=".|cff%s%02d%s|r"
	local GSC_NONE="|cffa0a0a0"..TEXT_NONE.."|r"

	if (not money) then money = 0 end

	local g, s, c = getGSC(money)
	local gsc = ""
	local fmt = GSC_START
	if (g > 0) then gsc = gsc..string.format(fmt, GSC_GOLD, g, 'g') fmt = GSC_PART end
	if (s > 0) or (c > 0) then gsc = gsc..string.format(fmt, GSC_SILVER, s, 's') fmt = GSC_PART end
	if (c > 0) then gsc = gsc..string.format(fmt, GSC_COPPER, c, 'c') end

	if (gsc == "") then gsc = GSC_NONE end

	return gsc
end


-- declared local at top
function showPrompt(link, bag, slot, value, spell)
	clearPrompt()		-- safety

	-- avoid taint, don't hide or show while in combat
	if InCombatLockdown() or UnitAffectingCombat("player") then
		return
	end

    --debugSpam(link ..",".. bag ..",".. slot ..",".. value ..",".. spell)

	local count = GetContainerItemCount(bag, slot)

	auto_de_prompt.link, auto_de_prompt.bag, auto_de_prompt.slot, auto_de_prompt.count = link, bag, slot, count
	auto_de_prompt.time = GetTime()		-- not yet used

	local texture = GetItemIcon(auto_de_prompt.link)
	auto_de_prompt.Item:SetNormalTexture(texture or "Interface\\Buttons\\UI-Slot-Background")
	--debugSpam("item link used:", auto_de_prompt.link, itemStringFromLink(auto_de_prompt.link), auto_de_prompt.bag, auto_de_prompt.slot)

	-- auto_de_prompt.Yes:SetAttribute("target-item", itemStringFromLink(auto_de_prompt.link))	-- this sees zombies for identical links in WoW 6.x
	auto_de_prompt.Yes:SetAttribute("target-bag", auto_de_prompt.bag)
	auto_de_prompt.Yes:SetAttribute("target-slot", auto_de_prompt.slot)
	auto_de_prompt.Yes:SetAttribute("spell", spell)

	if spell == idProspecting then
		auto_de_prompt.Lines[1]:SetText(_ENCH("GuiAutoProspectPromptLine1"))
		auto_de_prompt.Lines[2]:SetText("  " .. auto_de_prompt.link .. "x5")
	elseif spell == idMilling then
		auto_de_prompt.Lines[1]:SetText(_ENCH("GuiAutoMillingPromptLine1"))
		auto_de_prompt.Lines[2]:SetText("  " .. auto_de_prompt.link .. "x5")
	elseif spell == idDisenchant then
		auto_de_prompt.Lines[1]:SetText(_ENCH("GuiAutoDePromptLine1"))
		auto_de_prompt.Lines[2]:SetText("  " .. auto_de_prompt.link)
	end
	auto_de_prompt.Lines[3]:SetText(_ENCH("GuiAutoDePromptLine3"):format(getTextGSC(floor(value))))

	-- clear the lines, just in case
	auto_de_prompt.Lines[4]:SetText( nil );
	auto_de_prompt.Lines[5]:SetText( nil );

	if (BeanCounter and BeanCounter.API) then
		local reason = BeanCounter.API.getBidReason(link, count)
		if (reason) then
			auto_de_prompt.Lines[4]:SetText( format( _ENCH("GuiAutoDEPurchaseReason"), reason ) );
		end
	end

	if AucAdvanced then
		local itemSuggest = AucAdvanced.GetModule("ItemSuggest")
		if itemSuggest then
			local suggestion = itemSuggest.GetSuggestText(itemSuggest.Suggest( link, count ), "auto")
			if suggestion ~= "Unknown" then
				auto_de_prompt.Lines[5]:SetText( format( _ENCH("GuiAutoDESuggestion"), suggestion)  );
			end
		end
	end

	auto_de_prompt:Show()
end

-- declared local at top
function hidePrompt()
	-- avoid taint, don't hide or show while in combat
	if not (InCombatLockdown() or UnitAffectingCombat("player")) then
		auto_de_prompt:Hide()
	end
end

-- declared local at top
function clearPrompt()
	hidePrompt()
	auto_de_prompt.link, auto_de_prompt.bag, auto_de_prompt.slot, auto_de_prompt.count, auto_de_prompt.time = nil, nil, nil, nil, nil
	-- clear the button target so macro junkies don't get a surprise
	auto_de_prompt.Yes:SetAttribute("target-item", nil)
end

local function promptNo()
	if auto_de_prompt.link then
		ignoreItemSession(auto_de_prompt.link)
	end
	clearPrompt()
	beginScan()
end

local function promptIgnore()
	if auto_de_prompt.link then
		ignoreItemPermanent(auto_de_prompt.link)
	end
	clearPrompt()
	beginScan()
end

--------------------------------------------------------------------------------
-- Tooltip handling

local function showTooltip()
	GameTooltip:SetOwner(auto_de_prompt, "ANCHOR_NONE")

	local count = 1
	local spellName = auto_de_prompt.Yes:GetAttribute("spell")
	if spellName == idProspecting
		or spellName == idMilling then
		count = 5
	end

	auto_de_tooltip:ShowItemLink(GameTooltip, auto_de_prompt.link, count)

	GameTooltip:ClearAllPoints()
	GameTooltip:SetPoint("TOPRIGHT", "AutoDisenchantPromptItem", "TOPLEFT", -10, -20)
	GameTooltip:Show()
end

local function hideTooltip()
	GameTooltip:Hide()
end

--------------------------------------------------------------------------------
-- UI

local function initUI()
	-- main frame
	auto_de_frame = CreateFrame("Frame")

	-- prompt frame
	auto_de_prompt = CreateFrame("Frame", "", UIParent, BackdropTemplateMixin and "BackdropTemplate")
	auto_de_prompt:Hide()

	auto_de_prompt:SetPoint("TOP", "UIParent", "TOP", 0, -100)
	auto_de_prompt:SetFrameStrata("DIALOG")
	auto_de_prompt:SetHeight(170)
	auto_de_prompt:SetWidth(420)
	auto_de_prompt:SetBackdrop({
		bgFile = "Interface/Tooltips/UI-Tooltip-Background",
		edgeFile = "Interface/Tooltips/UI-Tooltip-Border",
		tile = true, tileSize = 32, edgeSize = 32,
		insets = { left = 9, right = 9, top = 9, bottom = 9 }
	})
	auto_de_prompt:SetBackdropColor(0,0,0, 0.8)
	auto_de_prompt:EnableMouse(true)
	auto_de_prompt:SetMovable(true)

	-- prompt dragbar
	auto_de_prompt.Drag = CreateFrame("Button", "", auto_de_prompt)
	auto_de_prompt.Drag:SetPoint("TOPLEFT", auto_de_prompt, "TOPLEFT", 10,-5)
	auto_de_prompt.Drag:SetPoint("TOPRIGHT", auto_de_prompt, "TOPRIGHT", -10,-5)
	auto_de_prompt.Drag:SetHeight(6)
	auto_de_prompt.Drag:SetHighlightTexture("Interface\\FriendsFrame\\UI-FriendsFrame-HighlightBar")
	auto_de_prompt.Drag:SetScript("OnMouseDown", function() auto_de_prompt:StartMoving() end)
	auto_de_prompt.Drag:SetScript("OnMouseUp", function() auto_de_prompt:StopMovingOrSizing() end)

	-- prompt item icon
	auto_de_prompt.Item = CreateFrame("Button", "AutoDisenchantPromptItem", auto_de_prompt)
	auto_de_prompt.Item:SetNormalTexture("Interface\\Buttons\\UI-Slot-Background")
	auto_de_prompt.Item:SetPoint("TOPLEFT", auto_de_prompt, "TOPLEFT", 15, -15)
	auto_de_prompt.Item:SetHeight(37)
	auto_de_prompt.Item:SetWidth(37)
	auto_de_prompt.Item:SetScript("OnEnter", showTooltip)
	auto_de_prompt.Item:SetScript("OnLeave", hideTooltip)

	-- prompt text
	auto_de_prompt.Lines = {}
	for i = 1, 5 do
		auto_de_prompt.Lines[i] = auto_de_prompt:CreateFontString("AutoDisenchantPromptLine"..i, "ARTWORK")
		if (i == 1) then
			auto_de_prompt.Lines[i]:SetPoint("TOPLEFT", auto_de_prompt.Item, "TOPRIGHT", 5, 5)
			auto_de_prompt.Lines[i]:SetFont(STANDARD_TEXT_FONT,16)
		else
			auto_de_prompt.Lines[i]:SetPoint("TOPLEFT", auto_de_prompt.Lines[i-1], "BOTTOMLEFT", 0, -5)
			auto_de_prompt.Lines[i]:SetFont(STANDARD_TEXT_FONT,13)
		end
		auto_de_prompt.Lines[i]:SetWidth(370)
		auto_de_prompt.Lines[i]:SetJustifyH("LEFT")
		auto_de_prompt.Lines[i]:SetText(" ")
	end

	-- prompt buttons

	-- there is no secure version of OptionsButton, so create an invisible
	-- OptionsButton (auto_de_prompt.DummyYes) and copy its visual settings across to a
	-- SecureActionButton (auto_de_prompt.Yes) to perform the spellcast

	local function copyButtonVisuals(dest, source)

		dest:ClearAllPoints()
		dest:SetPoint("TOPLEFT", source, "TOPLEFT")
		dest:SetPoint("BOTTOMRIGHT", source, "BOTTOMRIGHT")

--		local tex = source:GetNormalTexture()		-- this is returning NIL in 5.0.4
		local tex = dest:CreateTexture(nil, nil, "UIPanelButtonUpTexture")
		dest:SetNormalTexture(tex)

		dest:SetHighlightTexture(source:GetHighlightTexture())
		--dest:SetPushedTexture(source:GetPushedTexture())
		dest:SetText(source:GetText())
		dest:SetNormalFontObject(GameFontNormal);
		dest:SetHighlightFontObject(GameFontHighlight);
	end

	-- create an invisible "Yes" OptionsButton, then copy its settings
	-- across to the secure button
	auto_de_prompt.DummyYes = CreateFrame("Button", "", auto_de_prompt, "UIPanelButtonTemplate")
	auto_de_prompt.DummyYes:SetSize(90, 21)
	auto_de_prompt.DummyYes:SetText(_ENCH("GuiYes"))
	auto_de_prompt.DummyYes:SetPoint("BOTTOMRIGHT", auto_de_prompt, "BOTTOMRIGHT", -10, 10)
	auto_de_prompt.DummyYes:Hide()

	auto_de_prompt.Yes = CreateFrame("Button", "AutoDEPromptYes", auto_de_prompt, "SecureActionButtonTemplate")
	copyButtonVisuals(auto_de_prompt.Yes, auto_de_prompt.DummyYes)
	if WOW_PROJECT_ID == WOW_PROJECT_MAINLINE then
		-- in 10.x need to register for both up and down clicks; only one will be active depending on cVar ActionButtonUseKeyDown
		-- for other clients leave as default (which should be "LeftButtonUp")
		auto_de_prompt.Yes:RegisterForClicks("LeftButtonUp", "LeftButtonDown")
	end
	auto_de_prompt.Yes:SetAttribute("unit", "none")
	auto_de_prompt.Yes:SetAttribute("type", "spell")

	auto_de_prompt.No = CreateFrame("Button", "AutoDEPromptNo", auto_de_prompt, "UIPanelButtonTemplate")
	auto_de_prompt.No:SetSize(90, 21)
	auto_de_prompt.No:SetText(_ENCH("GuiNo"))
	auto_de_prompt.No:SetPoint("BOTTOMRIGHT", auto_de_prompt.Yes, "BOTTOMLEFT", -5, 0)
	auto_de_prompt.No:SetScript("OnClick", promptNo)

	auto_de_prompt.Ignore = CreateFrame("Button", "AutoDEPromptIgnore", auto_de_prompt, "UIPanelButtonTemplate")
	auto_de_prompt.Ignore:SetSize(90, 21)
	auto_de_prompt.Ignore:SetText(_ENCH("GuiIgnore"))
	auto_de_prompt.Ignore:SetPoint("BOTTOMRIGHT", auto_de_prompt.No, "BOTTOMLEFT", -5, 0)
	auto_de_prompt.Ignore:SetScript("OnClick", promptIgnore)
end

--------------------------------------------------------------------------------
-- Global setup

local function addonLoaded()
	if not AutoDisenchantIgnoreList then AutoDisenchantIgnoreList = {} end

	setState("init")

	initUI()

	Stubby.RegisterEventHook("LOOT_OPENED", "Enchantrix.AutoDisenchant", onEvent)
	Stubby.RegisterEventHook("LOOT_CLOSED", "Enchantrix.AutoDisenchant", onEvent)
	Stubby.RegisterEventHook("UNIT_SPELLCAST_SENT", "Enchantrix.AutoDisenchant", onEvent)
	Stubby.RegisterEventHook("UNIT_SPELLCAST_INTERRUPTED", "Enchantrix.AutoDisenchant", onEvent)
	Stubby.RegisterEventHook("UNIT_SPELLCAST_FAILED", "Enchantrix.AutoDisenchant", onEvent)		-- this happens often during combat
	Stubby.RegisterEventHook("UNIT_SPELLCAST_SUCCEEDED", "Enchantrix.AutoDisenchant", onEvent)
	Stubby.RegisterEventHook("BAG_UPDATE", "Enchantrix.AutoDisenchant", onEvent)

	auto_de_frame:SetScript("OnUpdate", onUpdate)
end


Enchantrix.AutoDisenchant = {
	AddonLoaded = addonLoaded,
	NameFromIgnoreListItem = nameFromIgnoreListItem,

}
