--[[
File containing all the Atlas replacement functions and the External API
]]

local AL = LibStub("AceLocale-3.0"):GetLocale("AtlasLoot");

-- Colours stored for code readability
local GREY = "|cff999999";
local RED = "|cffff0000";
local WHITE = "|cffFFFFFF";
local GREEN = "|cff1eff00";
local PURPLE = "|cff9F3FFF";
local BLUE = "|cff0070dd";
local ORANGE = "|cffFF8400";

--Establish number of boss lines in the Atlas frame for scrolling
local ATLAS_LOOT_BOSS_LINES	= 24;

--[[
AtlasLoot_Atlas_OnShow:
Hooks Atlas_OnShow() to add extra setup routines that AtlasLoot needs for
integration purposes.
]]
function AtlasLoot_Atlas_OnShow()
    Atlas_Refresh();
    
    --We don't want Atlas and the Loot Browser open at the same time, so the Loot Browser is close
    if AtlasLootDefaultFrame then
        AtlasLootDefaultFrame:Hide();
    end
    --Call the Atlas function
    Hooked_Atlas_OnShow();
    --If we were looking at a loot table earlier in the session, it is still
    --saved on the item frame, so restore it in Atlas
    if AtlasLootItemsFrame.activeBoss ~= nil then
        AtlasLootItemsFrame:Show();
    else
        --If no loot table is selected, set up icons next to boss names
        for i=1,ATLAS_CUR_LINES do
            if (getglobal("AtlasEntry"..i.."_Selected") and getglobal("AtlasEntry"..i.."_Selected"):IsVisible()) then
                getglobal("AtlasEntry"..i.."_Loot"):Show();
                getglobal("AtlasEntry"..i.."_Selected"):Hide();
            end
        end
    end
    --Consult the saved variable table to see whether to show the bottom panel
    if AtlasLoot.db.profile.HidePanel == true then
        AtlasLootPanel:Hide();
    else
        AtlasLootPanel:Show();
    end 
    pFrame = AtlasFrame;
end

--[[
AtlasLoot_Refresh:
Replacement for Atlas_Refresh, required as the template for the boss buttons in Atlas is insufficient
Called whenever the state of Atlas changes
]]
function AtlasLoot_Refresh()
    --Reset which loot page is 'current'
    AtlasLootItemsFrame.activeBoss = nil;

    --Get map selection info from Atlas
    local zoneID = ATLAS_DROPDOWNS[AtlasOptions.AtlasType][AtlasOptions.AtlasZone];
    local data = AtlasMaps;
    local base = {};
    
    --Get boss name information
    for k,v in pairs(data[zoneID]) do
        base[k] = v;
    end
    
    --Display the newly selected texture
    AtlasMap:ClearAllPoints();
    AtlasMap:SetWidth(512);
    AtlasMap:SetHeight(512);
    AtlasMap:SetPoint("TOPLEFT", "AtlasFrame", "TOPLEFT", 18, -84);
    local builtIn = AtlasMap:SetTexture("Interface\\AddOns\\Atlas\\Images\\Maps\\"..zoneID);
    
    --If texture was not found in the core Atlas mod, check plugins
    if ( not builtIn ) then
        for k,v in pairs(ATLAS_PLUGINS) do
            if ( AtlasMap:SetTexture("Interface\\AddOns\\"..v.."\\Images\\"..zoneID) ) then
                break;
            end
        end
    end
    
    --Setup info panel above boss listing
    local tName = base.ZoneName[1];
    if ( AtlasOptions.AtlasAcronyms and base.Acronym ~= nil) then
        local _RED = "|cffcc6666";
        tName = tName.._RED.." ["..base.Acronym.."]";
    end
    AtlasText_ZoneName_Text:SetText(tName);
    
    local tLoc = "";
    local tLR = "";
    local tML = "";
    local tPL = "";
    if ( base.Location ) then
        tLoc = ATLAS_STRING_LOCATION..": "..base.Location[1];
    end
    if ( base.LevelRange ) then
        tLR = ATLAS_STRING_LEVELRANGE..": "..base.LevelRange;
    end
    if ( base.MinLevel ) then
		tML = ATLAS_STRING_MINLEVEL..": "..base.MinLevel;
	end
    if ( base.PlayerLimit ) then
        tPL = ATLAS_STRING_PLAYERLIMIT..": "..base.PlayerLimit;
    end
    AtlasText_Location_Text:SetText(tLoc);
    AtlasText_LevelRange_Text:SetText(tLR);
    AtlasText_MinLevel_Text:SetText(tML);
    AtlasText_PlayerLimit_Text:SetText(tPL);
    
    Atlastextbase = base;
    --Get the size of the Atlas text to append stuff to the bottom.  Looks for empty lines
	--[[
    local i = 1;
    local j = 2;
    while ( (Atlastextbase[i] ~= nil and Atlastextbase[i]~="") or (Atlastextbase[j] ~= nil and Atlastextbase[j]~="")) do
        i = i + 1;
        j = i + 1;
    end
    --Allow AtlasLoot to append any extra 'boss' entries needed to a map
    if AtlasLoot_ExtraText[zoneID] ~= nil then
        --Workaround for Old Hillsbrad, we don't want the Trash Mobs stuck under the 'flavour' NPCS
        if zoneID == "CoTOldHillsbrad" then
		    Atlastextbase[22][1] = GREY..ATLASLOOT_INDENT..AL["Trash Mobs"];
        else
            for k,v in ipairs(AtlasLoot_ExtraText[zoneID]) do
                j = i + 1;
                --If the line after the empty line is not empty itself, all text below this point is shuffled down to make room
                if Atlastextbase[i]~=nil and Atlastextbase[i]~="" then
                    Atlastextbase[j] = Atlastextbase[i];
                end
                Atlastextbase[i]={v, nil, nil};
                i = i + 1;
            end
            Atlastextbase[i]={"", nil, nil};
        end
    end
	]]--
	if AtlasLoot_ExtraText[zoneID] and #Atlastextbase and #Atlastextbase > 0 then
		local numContent = #Atlastextbase
		-- add the extra lines
		for i = 1,#AtlasLoot_ExtraText[zoneID]+1 do
			Atlastextbase[numContent+i] = {"", nil, nil}
		end
		for k,v in ipairs(AtlasLoot_ExtraText[zoneID]) do
			numContent = numContent + 1
			Atlastextbase[numContent] = {v, nil, nil}
		end
		Atlastextbase[numContent+2]={"", nil, nil}
	end
	
	
    
    --Hide any Atlas objects lurking around that have now been replaced
    for i=1,ATLAS_CUR_LINES do
        if ( getglobal("AtlasEntry"..i) ) then
            getglobal("AtlasEntry"..i):Hide();
        end
    end
    
    ATLAS_DATA = Atlastextbase;
    ATLAS_SEARCH_METHOD = data.Search;
    --Deal with Atlas's search function
    if ( data.Search == nil ) then
        ATLAS_SEARCH_METHOD = AtlasSimpleSearch;
    end
    
    if ( data.Search ~= false ) then
        AtlasSearchEditBox:Show();
        AtlasNoSearch:Hide();
    else
        AtlasSearchEditBox:Hide();
        AtlasNoSearch:Show();
        ATLAS_SEARCH_METHOD = nil;
    end

    --populate the scroll frame entries list, the update func will do the rest
    Atlas_Search("");
    AtlasSearchEditBox:SetText("");
    AtlasSearchEditBox:ClearFocus();
    
    --create and align any new entry buttons that we need
    for i=1,ATLAS_CUR_LINES do
        local f;
        if (not getglobal("AtlasBossLine"..i)) then
            f = CreateFrame("Button", "AtlasBossLine"..i, AtlasFrame, "AtlasLootNewBossLineTemplate");
            f:SetFrameStrata("HIGH");
            if i==1 then
                f:SetPoint("TOPLEFT", "AtlasScrollBar", "TOPLEFT", 16, -3);
            else
                f:SetPoint("TOPLEFT", "AtlasBossLine"..(i-1), "BOTTOMLEFT");
            end
        else
            getglobal("AtlasBossLine"..i.."_Loot"):Hide();
            getglobal("AtlasBossLine"..i.."_Selected"):Hide();
        end
    end
    
    --Hide the loot frame now that a pristine Atlas instance is created
    AtlasLootItemsFrame:Hide();
    Atlas_Search("");
    --Make sure the scroll bar is correctly offset
    AtlasLoot_AtlasScrollBar_Update();
	
	--see if we should display the entrance/instance button or not, and decide what it should say
	local matchFound = {nil};
	local sayEntrance = nil;
	for k,v in pairs(Atlas_EntToInstMatches) do
		if ( k == zoneID ) then
			matchFound = v;
			sayEntrance = false;
		end
	end
	if ( not matchFound[1] ) then
		for k,v in pairs(Atlas_InstToEntMatches) do
			if ( k == zoneID ) then
				matchFound = v;
				sayEntrance = true;
			end
		end
	end
	
	--set the button's text, populate the dropdown menu, and show or hide the button
	if ( matchFound[1] ~= nil ) then
		ATLAS_INST_ENT_DROPDOWN = {};
		for k,v in pairs(matchFound) do
			table.insert(ATLAS_INST_ENT_DROPDOWN, v);
		end
		table.sort(ATLAS_INST_ENT_DROPDOWN, AtlasSwitchDD_Sort);
		if ( sayEntrance ) then
			AtlasSwitchButton:SetText(ATLAS_ENTRANCE_BUTTON);
		else
			AtlasSwitchButton:SetText(ATLAS_INSTANCE_BUTTON);
		end
		AtlasSwitchButton:Show();
		UIDropDownMenu_Initialize(AtlasSwitchDD, AtlasSwitchDD_OnLoad);
	else
		AtlasSwitchButton:Hide();
	end
	
	if ( TitanPanelButton_UpdateButton ) then
		TitanPanelButton_UpdateButton("Atlas");
	end
end


--[[
AtlasLoot_AtlasScrollBar_Update:
Hooks the Atlas scroll frame.  
Required as the Atlas function cannot deal with the AtlasLoot button template or the added Atlasloot entries
]]
function AtlasLoot_AtlasScrollBar_Update()
    local line, lineplusoffset;
    if (getglobal("AtlasBossLine1_Text") ~= nil) then
        local zoneID = ATLAS_DROPDOWNS[AtlasOptions.AtlasType][AtlasOptions.AtlasZone];
        --Update the contents of the Atlas scroll frame
        FauxScrollFrame_Update(AtlasScrollBar,ATLAS_CUR_LINES,ATLAS_LOOT_BOSS_LINES,15);
        --Make note of how far in the scroll frame we are
        for line=1,ATLAS_NUM_LINES do
            lineplusoffset = line + FauxScrollFrame_GetOffset(AtlasScrollBar);
            if ( lineplusoffset <= ATLAS_CUR_LINES ) then
                getglobal("AtlasBossLine"..line.."_Text"):SetText(ATLAS_SCROLL_LIST[lineplusoffset]);
                if AtlasLootItemsFrame.activeBoss == lineplusoffset then
                    getglobal("AtlasBossLine"..line.."_Loot"):Hide();
                    getglobal("AtlasBossLine"..line.."_Selected"):Show();
                elseif (AtlasLootBossButtons[zoneID]~=nil and AtlasLootBossButtons[zoneID][lineplusoffset] ~= nil and AtlasLootBossButtons[zoneID][lineplusoffset] ~= "") then
                    getglobal("AtlasBossLine"..line.."_Loot"):Show();
                    getglobal("AtlasBossLine"..line.."_Selected"):Hide();
                elseif (AtlasLootWBBossButtons[zoneID]~=nil and AtlasLootWBBossButtons[zoneID][lineplusoffset] ~= nil and AtlasLootWBBossButtons[zoneID][lineplusoffset] ~= "") then
                    getglobal("AtlasBossLine"..line.."_Loot"):Show();
                    getglobal("AtlasBossLine"..line.."_Selected"):Hide();
                elseif (AtlasLootBattlegrounds[zoneID]~=nil and AtlasLootBattlegrounds[zoneID][lineplusoffset] ~= nil and AtlasLootBattlegrounds[zoneID][lineplusoffset] ~= "") then
                    getglobal("AtlasBossLine"..line.."_Loot"):Show();
                    getglobal("AtlasBossLine"..line.."_Selected"):Hide();
                else
                    getglobal("AtlasBossLine"..line.."_Loot"):Hide();
                    getglobal("AtlasBossLine"..line.."_Selected"):Hide();
                end
                getglobal("AtlasBossLine"..line).idnum = lineplusoffset;
                getglobal("AtlasBossLine"..line):Show();
            elseif ( getglobal("AtlasBossLine"..line) ) then
                --Hide lines that are not needed
                getglobal("AtlasBossLine"..line):Hide();
            end
        end
    else
        Hooked_AtlasScrollBar_Update();
    end
end