local _, app = ...

-- Other Classes reference this, it must exist.
local ActiveVignettes = {};
app.ActiveVignettes = ActiveVignettes;

-- This functionality is only available if the VignetteInfo api is available.
if not C_VignetteInfo then
	-- Fallback for if the Vignette class isn't supported.
	setmetatable(ActiveVignettes, {
		__index = function(t, key)
			local data = {};
			t[key] = data;
			return data;
		end
	});
	return
end

-- locals
local L = app.L;

-- Global locals
local rawset, tonumber, ipairs, pairs
	= rawset, tonumber, ipairs, pairs

-- Module locals
local FlashClientIcon = FlashClientIcon;
local C_VignetteInfo_GetVignetteInfo = C_VignetteInfo.GetVignetteInfo;
local C_VignetteInfo_GetVignettes = C_VignetteInfo.GetVignettes;
local C_VignetteInfo_GetVignettePosition = C_VignetteInfo.GetVignettePosition;

-- Helper Functions
local ActiveWaypointGUID;
local function GetWaypointLink(guid, text)
	-- Generates a waypoint link with text (optional) inside the link should the vignette guid have a valid position.
	if guid and C_VignetteInfo_GetVignettePosition then
		local mapID = app.CurrentMapID;
		if mapID then
			local pos = C_VignetteInfo_GetVignettePosition(guid, mapID);
			if pos then
				if app.Settings:GetTooltipSetting("Nearby:PlotWaypoints") then
					ActiveWaypointGUID = guid;
					C_SuperTrack.SetSuperTrackedUserWaypoint(false);
					C_Map.ClearUserWaypoint();
					C_Map.SetUserWaypoint(UiMapPoint.CreateFromCoordinates(mapID, pos.x, pos.y, pos.z));
					C_SuperTrack.SetSuperTrackedUserWaypoint(true);
				end
				return app:WaypointLink(mapID, pos.x, pos.y, text);
			end
		end
	end
end

local GetProgressColorText = app.Modules.Color.GetProgressColorText;
local ReportedVignettes = {};
local Ignored = setmetatable({
	npc = {
		[223728] = true,	-- Auditor Balwurz [Renown Quartermaster - Council of Dornogal]
		[221390] = true,	-- Waxmonger Squick [Renown Quartermaster - The Assembly of the Deeps]
		[213145] = true,	-- Auralia Steelstrike [Renown Quartermaster - Hallowfall Arathi]
	},
	object = {

	},
},{ __index = function() return app.EmptyTable end })
local function AlertForVignetteInfo(info)
	local type = info.SearchType
	local id = info.ID
	-- if we want to Ignore reporting this vignette, then pretend we alerted it
	if Ignored[type][id] then return true end

	local link = type .. ":" .. id;
	app.SetSkipLevel(1)
	local group = app.GetCachedSearchResults(app.SearchForLink, link);
	app.SetSkipLevel(0)
	if not app.Settings:GetTooltipSetting("Nearby:IncludeCompleted") and (not group.visible or app.IsComplete(group)) then return false; end
	local progressText = group.progressText
		or GetProgressColorText(group.progress or 0, group.total or 0)
		or (group.collectible and app.GetCollectionIcon(group.collected))
		or (group.trackable and app.GetCompletionIcon(group.saved));
	if progressText then
		link = app:Linkify(info.name or id, app.Colors.ChatLink, "search:" .. link) .. " " .. progressText;
	elseif app.Settings:GetTooltipSetting("Nearby:IncludeUnknown") then
		link = app:Linkify(info.name or id, app.Colors.SourceIgnored, "search:" .. link);
	else
		return true;
	end

	local waypointLink = GetWaypointLink(info.vignetteGUID);
	if waypointLink then link = waypointLink .. " " .. link; end
	app.print(L.NEARBY, link);
	app.Audio:PlayRareFindSound();
	if FlashClientIcon and app.Settings:GetTooltipSetting("Nearby:FlashTheTaskbar") then FlashClientIcon(); end
	return true;
end
local AlertMeta = {
	__newindex = function(t, key, info)
		if info then
			if app.Settings:GetTooltipSetting("Nearby:ReportContent") then
				local guid = info.objectGUID;
				if guid and not ReportedVignettes[guid] then
					-- if we encounter situations where a ton of vignettes all attempt to load in a single frame
					-- each one processing fresh search results, we may want to easily split that reporting into
					-- multiple frames to remove the lag spike potential
					if AlertForVignetteInfo(info) then
						-- If someone has completed turned off
						ReportedVignettes[guid] = true;
						rawset(t, key, info);
					end
				end
			end
		else
			rawset(t, key, info);
		end
	end
};
setmetatable(ActiveVignettes, {
	__index = function(t, key)
		local data = setmetatable({}, AlertMeta);
		t[key] = data;
		return data;
	end
});

-- Event Handling
local CachedVignetteInfo = {};
local VignetteSearchTypes = setmetatable({
	Creature = "npc",
	GameObject = "object",
	Vehicle = "npc",
}, {
	__index = function(t, vignetteType)
		app.PrintDebug("Unhandled Vignette Type", vignetteType);
		return "npc";
	end
});
local function ClearVignette(guid)
	if guid then
		local vignetteInfo = CachedVignetteInfo[guid];
		if vignetteInfo then
			if ActiveWaypointGUID == guid and app.Settings:GetTooltipSetting("Nearby:ClearWaypoints") then
				C_Map.ClearUserWaypoint();
				ActiveWaypointGUID = nil;
			end
			CachedVignetteInfo[guid] = nil;
			local searchType, id = vignetteInfo.SearchType, vignetteInfo.ID;
			if searchType and id then
				ActiveVignettes[searchType][id] = nil;
				--app.print("Cleared:", app:Linkify(vignetteInfo.name or id,app.Colors.ChatLink,"search:" .. searchType .. ":"..id));
			end
		end
	end
end
local function UpdateVignette(guid)
	if guid then
		local vignetteInfo = C_VignetteInfo_GetVignetteInfo(guid);
		if vignetteInfo and not vignetteInfo.isDead and vignetteInfo.objectGUID then
			local type, _, _, _, _, id, _ = ("-"):split(vignetteInfo.objectGUID);
			id = id and tonumber(id);
			if id then
				local searchType = VignetteSearchTypes[type];
				if app.Settings:GetTooltipSetting("Nearby:Type:" .. searchType) then
					vignetteInfo.SearchType = searchType;
					vignetteInfo.ID = id;
					CachedVignetteInfo[guid] = vignetteInfo;
					ActiveVignettes[searchType][id] = vignetteInfo;
				end
			end
		else
			ClearVignette(guid);
		end
	end
end
app.AddEventRegistration("VIGNETTE_MINIMAP_UPDATED", UpdateVignette);
local function Event_VIGNETTES_UPDATED()
	local vignettesByGUID = {};
	local vignettes = C_VignetteInfo_GetVignettes();
	if vignettes then
		for _,guid in ipairs(vignettes) do
			vignettesByGUID[guid] = true;
			UpdateVignette(guid);
		end
	end
	for guid,_ in pairs(CachedVignetteInfo) do
		if not vignettesByGUID[guid] then
			ClearVignette(guid);
		end
	end
end
app.AddEventRegistration("VIGNETTES_UPDATED", Event_VIGNETTES_UPDATED);
app.AddEventHandler("OnReady", function()
	Event_VIGNETTES_UPDATED();
	app.AddEventHandler("OnReportNearbySettingsChanged", Event_VIGNETTES_UPDATED);
end);