-----------------------------------------------------------------------
-- AddOn namespace.
-----------------------------------------------------------------------
local ADDON_NAME, private = ...

local RSGeneralDB = private.NewLib("RareScannerGeneralDB")

-- RareScanner database libraries
local RSNpcDB = private.ImportLib("RareScannerNpcDB")
local RSContainerDB = private.ImportLib("RareScannerContainerDB")
local RSConfigDB = private.ImportLib("RareScannerConfigDB")

-- RareScanner libraries
local RSConstants = private.ImportLib("RareScannerConstants")
local RSLogger = private.ImportLib("RareScannerLogger")
local RSUtils = private.ImportLib("RareScannerUtils")


---============================================================================
-- Already found entities
----- Stores entities information found while playing
---============================================================================

function RSGeneralDB.InitAlreadyFoundEntitiesDB()
	if (not private.dbglobal.rares_found) then
		private.dbglobal.rares_found = {}
	end
end

function RSGeneralDB.RemoveAlreadyFoundEntity(entityID)
	if (entityID and private.dbglobal.rares_found[entityID]) then
		private.dbglobal.rares_found[entityID] = nil
	end
end

function RSGeneralDB.GetAlreadyFoundEntities()
	return private.dbglobal.rares_found
end

function RSGeneralDB.GetAlreadyFoundEntity(entityID)
	if (entityID) then
		return private.dbglobal.rares_found[entityID]
	end

	return nil
end

function RSGeneralDB.IsAlreadyFoundEntityInZone(entityID, mapID)
	if (entityID and mapID and private.dbglobal.rares_found[entityID]) then
		local entityInfo = RSGeneralDB.GetAlreadyFoundEntity(entityID)
		if (entityInfo.mapID == mapID and (not entityInfo.artID or RSUtils.Contains(entityInfo.artID, C_Map.GetMapArtID(mapID)))) then
			return true
		end
	end

	return false
end

function RSGeneralDB.AddAlreadyFoundNpcWithoutVignette(npcID)
	-- Extract position from player
	local mapID = C_Map.GetBestMapForUnit("player")
	if (mapID) then
		local mapPosition = C_Map.GetPlayerMapPosition(mapID, "player")
		local artID = C_Map.GetMapArtID(mapID)
		if (mapPosition) then
			local x, y = mapPosition:GetXY()
			RSLogger:PrintDebugMessage(string.format("AddAlreadyFoundNpcWithoutVignette[%s]. Usada la posicion del jugador", npcID))
			return RSGeneralDB.AddAlreadyFoundEntity(npcID, mapID, x, y, artID, RSConstants.NPC_VIGNETTE)
		end
	end

	-- If it couldnt get the position from player extract it from the internal database
	-- If its a multizone NPC we cannot know what zone the player is at
	if (RSNpcDB.IsInternalNpcMonoZone(npcID)) then
		local npcInfo = RSNpcDB.GetInternalNpcInfo(npcID)
		if (npcInfo.zoneID ~= RSConstants.UNKNOWN_ZONE_ID) then
			RSLogger:PrintDebugMessage(string.format("AddAlreadyFoundNpcWithoutVignette[%s]. Usada la informacion interna", npcID))
			return RSGeneralDB.AddAlreadyFoundEntity(npcID, npcInfo.zoneID, npcInfo.x, npcInfo.y, npcInfo.artID, RSConstants.NPC_VIGNETTE)
		end
	end

	return nil
end

function RSGeneralDB.AddAlreadyFoundContainerWithoutVignette(containerID)
	-- Extract position from player
	local mapID = C_Map.GetBestMapForUnit("player")
	if (mapID) then
		local mapPosition = C_Map.GetPlayerMapPosition(mapID, "player")
		local artID = C_Map.GetMapArtID(mapID)
		if (mapPosition) then
			local x, y = mapPosition:GetXY()
			RSLogger:PrintDebugMessage(string.format("AddAlreadyFoundContainerWithoutVignette[%s]. Usada la posicion del jugador", containerID))
			return RSGeneralDB.AddAlreadyFoundEntity(containerID, mapID, x, y, artID, RSConstants.CONTAINER_VIGNETTE)
		end
	end

	-- If it couldnt get the position from player extract it from the internal database
	local containerInfo = RSGeneralDB.GetInternalContainerInfo(containerID)
	if (containerInfo and containerInfo.zoneID ~= RSConstants.UNKNOWN_ZONE_ID) then
		RSLogger:PrintDebugMessage(string.format("AddAlreadyFoundContainerWithoutVignette[%s]. Usada la informacion interna", containerID))
		return RSGeneralDB.AddAlreadyFoundEntity(containerID, containerInfo.zoneID, containerInfo.x, containerInfo.y, containerInfo.artID, RSConstants.CONTAINER_VIGNETTE)
	end

	return nil
end

function RSGeneralDB.UpdateAlreadyFoundEntityPlayerPosition(entityID)
	if (entityID and private.dbglobal.rares_found[entityID]) then
		local mapID = C_Map.GetBestMapForUnit("player")
		if (mapID) then
			local mapPosition = C_Map.GetPlayerMapPosition(mapID, "player")
			local artID = C_Map.GetMapArtID(mapID)
			if (mapPosition) then
				local x, y = mapPosition:GetXY()
				RSLogger:PrintDebugMessage(string.format("UpdateAlreadyFoundEntityPlayerPosition[%s]. Nueva posicion por cercania.", entityID))
				RSGeneralDB.UpdateAlreadyFoundEntity(entityID, mapID, x, y, artID)
			end
		end
	end
end

function RSGeneralDB.UpdateAlreadyFoundEntityTime(entityID)
	if (entityID and private.dbglobal.rares_found[entityID]) then
		private.dbglobal.rares_found[entityID].foundTime = time();
		--RSLogger:PrintDebugMessage(string.format("UpdateAlreadyFoundEntityTime[%s]. Nueva estampa de tiempo (%s)", entityID, RSGeneralDB.GetAlreadyFoundEntity(entityID).foundTime))
	end
end

local function PrintAlreadyFoundTable(raresFound)
	if (raresFound) then
		return string.format("mapID:%s,artID:%s,x:%s,y:%s,atlasName:%s,foundTime:%s", raresFound.mapID or "", ((type(raresFound.artID) == "table" and unpack(raresFound.artID)) or raresFound.artID or ""), raresFound.coordX or "", raresFound.coordY or "", raresFound.atlasName, raresFound.foundTime)
	end

	return ""
end

function RSGeneralDB.UpdateAlreadyFoundEntity(entityID, mapID, x, y, artID, atlasName)
	if (entityID and private.dbglobal.rares_found[entityID] and mapID and x and y and artID) then
		-- If the map is the same, check if different artID
		local currentMapID = private.dbglobal.rares_found[entityID].mapID;
		local currentArtID = private.dbglobal.rares_found[entityID].artID;
		if (currentMapID == mapID and currentArtID) then
			if (type(currentArtID) == "table" and not RSUtils.Contains(currentArtID, artID)) then
				table.insert(currentArtID, artID)
				private.dbglobal.rares_found[entityID].artID = currentArtID
			elseif (type(currentArtID) ~= "table" and currentArtID ~= artID) then
				private.dbglobal.rares_found[entityID].artID = { artID };
			end
			-- Otherwise override
		else
			private.dbglobal.rares_found[entityID].artID = { artID };
		end

		private.dbglobal.rares_found[entityID].mapID = mapID
		private.dbglobal.rares_found[entityID].coordX = x;
		private.dbglobal.rares_found[entityID].coordY = y;
		private.dbglobal.rares_found[entityID].foundTime = time();
		if (atlasName) then
			private.dbglobal.rares_found[entityID].atlasName = atlasName;
		end

		RSLogger:PrintDebugMessage(string.format("UpdateAlreadyFoundEntity[%s]: %s", entityID, PrintAlreadyFoundTable(RSGeneralDB.GetAlreadyFoundEntity(entityID))))
	end
end

function RSGeneralDB.AddAlreadyFoundEntity(entityID, mapID, x, y, artID, atlasName)
	if (entityID and mapID and x and y and artID and atlasName) then
		private.dbglobal.rares_found[entityID] = {};
		private.dbglobal.rares_found[entityID].mapID = mapID;
		if (type(artID) == "table") then
			private.dbglobal.rares_found[entityID].artID = artID;
		else
			private.dbglobal.rares_found[entityID].artID = { artID };
		end
		private.dbglobal.rares_found[entityID].coordX = x;
		private.dbglobal.rares_found[entityID].coordY = y;
		private.dbglobal.rares_found[entityID].atlasName = atlasName;
		private.dbglobal.rares_found[entityID].foundTime = time();

		RSLogger:PrintDebugMessage(string.format("AddAlreadyFoundEntity[%s]: %s", entityID, PrintAlreadyFoundTable(RSGeneralDB.GetAlreadyFoundEntity(entityID))))
		return RSGeneralDB.GetAlreadyFoundEntity(entityID)
	end

	RSLogger:PrintDebugMessage(string.format("AddAlreadyFoundEntity[%s]: No añadido! faltaban parametros!", entityID))
	return nil
end

function RSGeneralDB.GetBestMapForUnit(entityID, atlasName)
	local mapID = C_Map.GetBestMapForUnit("player")
	if (mapID) then
		return mapID
	end
	
	if (RSConstants.IsNpcAtlas(atlasName) and RSNpcDB.IsInternalNpcMonoZone(entityID)) then
		local npcInfo = RSNpcDB.GetInternalNpcInfo(entityID)
		return npcInfo.zoneID
	elseif (RSConstants.IsNpcAtlas(atlasName) and RSContainerDB.IsInternalContainerMonoZone(entityID)) then
		local containerInfo = RSContainerDB.GetInternalContainerInfo(entityID)
		return containerInfo.zoneID
	end
	
	return nil
end

---============================================================================
-- Loot info cache database
----- Stores information of items to avoid requesting the server too often
---============================================================================

function RSGeneralDB.InitItemInfoDB()
	if (not private.dbglobal.loot_info) then
		private.dbglobal.loot_info = {}
	end
end

function RSGeneralDB.GetItemName(itemID)
	if (not itemID) then
		return
	end

	-- The first time request the server for the information
	local retOk, itemName, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _ = pcall(C_Item.GetItemInfo, itemID)
	return itemName
end

function RSGeneralDB.GetItemInfo(itemID)
	if (not itemID) then
		return
	end

	-- The first time request the server for the information
	if (not private.dbglobal.loot_info[itemID]) then
		local retOk, _, itemLink, itemRarity, _, _, _, _, _, itemEquipLoc, iconFileDataID, _, itemClassID, itemSubClassID, _, _, _, _ = pcall(C_Item.GetItemInfo, itemID)
		if (itemLink and itemRarity and itemEquipLoc and iconFileDataID and itemClassID and itemSubClassID) then
			RSGeneralDB.SetItemInfo(itemID, itemLink, itemRarity, itemEquipLoc, iconFileDataID, itemClassID, itemSubClassID)
		end
		return itemLink, itemRarity, itemEquipLoc, iconFileDataID, itemClassID, itemSubClassID
	-- Next time return cached data
	else
		return unpack(private.dbglobal.loot_info[itemID])
	end
end

function RSGeneralDB.SetItemInfo(itemID, itemLink, itemRarity, itemEquipLoc, iconFileDataID, itemClassID, itemSubClassID)
	if (itemID) then
		private.dbglobal.loot_info[itemID] = { itemLink, itemRarity, itemEquipLoc, iconFileDataID, itemClassID, itemSubClassID }
	end
end

---============================================================================
-- Recently seen entities database
---============================================================================

function RSGeneralDB.InitRecentlySeenDB()
	private.dbglobal.recentlySeen = {}
end

function RSGeneralDB.DeleteRecentlySeen(npcID)
	if (npcID and private.dbglobal.recentlySeen[npcID]) then
		private.dbglobal.recentlySeen[npcID] = nil
	end
end

function RSGeneralDB.SetRecentlySeen(npcID)
	if (npcID) then
		private.dbglobal.recentlySeen[npcID] = true
	end
end

function RSGeneralDB.IsRecentlySeen(npcID)
	if (npcID and private.dbglobal.recentlySeen[npcID]) then
		return true
	end

	return false
end

---============================================================================
-- Overlay database
---============================================================================

function RSGeneralDB.HasOverlayActive(entityID)
	if (private.dbchar.overlayActive and entityID and private.dbchar.overlayActive[entityID]) then
		return true
	end
	
	return false
end

function RSGeneralDB.AddOverlayActive(entityID)
	if (not private.dbchar.overlayActive) then
		private.dbchar.overlayActive = {}
	end
	
	-- if its already in the list ignore it
	if (private.dbchar.overlayActive[entityID]) then
		return RSConfigDB.GetWorldMapOverlayColour(private.dbchar.overlayActive[entityID].colourID)
	end
	
	-- look for an available colour
	local assignedColourId = nil;
	for i = 1,private.db.map.overlayMaxColours,1 do 
		local colourIdFound = false	
		for id, info in pairs (private.dbchar.overlayActive) do
			if (info.colourID == i) then
				colourIdFound = true
				break
			end
		end
		
		if (not colourIdFound) then
			assignedColourId = i;
			private.dbchar.overlayActive[entityID] = { colourID = i, timestamp = time() }
			break
		end
	end
	
	-- if not added because all colours are used, replace the oldest
	local replacedEntityID = nil
	if (not assignedColourId) then
		local a = {}
		for _, info in pairs (private.dbchar.overlayActive) do
			table.insert(a, info.timestamp)
		end
		table.sort(a)
		for currentEntityID, info in pairs (private.dbchar.overlayActive) do
			if (info.timestamp == a[1]) then
				replacedEntityID = currentEntityID
				private.dbchar.overlayActive[currentEntityID] = nil
				private.dbchar.overlayActive[entityID] = { colourID = info.colourID, timestamp = time() }
				assignedColourId = info.colourID
				break
			end
		end
	end
	
	local r, g, b = RSConfigDB.GetWorldMapOverlayColour(assignedColourId)
	return r, g, b, replacedEntityID
end

function RSGeneralDB.GetOverlayActive(entityID)
	if (private.dbchar.overlayActive and entityID and private.dbchar.overlayActive[entityID]) then
		return private.dbchar.overlayActive[entityID]
	end
	
	return nil
end

function RSGeneralDB.GetAllOverlayActive()
	if (private.dbchar.overlayActive) then
		return private.dbchar.overlayActive
	end
	
	return {}
end

function RSGeneralDB.RemoveOverlayActive(entityID)
	if (private.dbchar.overlayActive and entityID and private.dbchar.overlayActive[entityID]) then
		private.dbchar.overlayActive[entityID] = nil
	end
end

function RSGeneralDB.RemoveAllOverlayActive()
	private.dbchar.overlayActive = nil
end

---============================================================================
-- Guide database
---============================================================================

function RSGeneralDB.HasGuideActive(entityID)
	return private.dbchar.guideActive and private.dbchar.guideActive == entityID
end

function RSGeneralDB.SetGuideActive(entityID)
	private.dbchar.guideActive = entityID
end

function RSGeneralDB.GetGuideActive()
	return private.dbchar.guideActive
end

function RSGeneralDB.RemoveGuideActive()
	private.dbchar.guideActive = nil
end

---============================================================================
-- Help database
---============================================================================

function RSGeneralDB.GetHelpActive()
	return private.dbchar.helpActive
end

function RSGeneralDB.RemoveHelpActive()
	private.dbchar.helpActive = nil
end

---============================================================================
-- Button position
---============================================================================

function RSGeneralDB.SetButtonPositionCoordinates(x, y)
	if (x and y) then
		private.db.scannerXPos = x
		private.db.scannerYPos = y
	end
end

function RSGeneralDB.GetButtonPositionCoordinates()
	-- Previous settings based on character database
	if (private.dbchar.scannerXPos and private.dbchar.scannerYPos) then
		if (not private.db.scannerXPos or not private.db.scannerYPos) then
			RSGeneralDB.SetButtonPositionCoordinates(private.dbchar.scannerXPos, private.dbchar.scannerYPos)
		end
		private.dbchar.scannerXPos = nil
		private.dbchar.scannerYPos = nil
	end
	
	-- Current settings based on profiles database
	if (private.db.scannerXPos and private.db.scannerYPos) then
		return private.db.scannerXPos, private.db.scannerYPos
	end

	return nil
end

---============================================================================
-- Version control database
---============================================================================

function RSGeneralDB.InitDbVersionDB()
	if (not private.dbglobal.dbversion) then
		private.dbglobal.dbversion = {}
	end
end

function RSGeneralDB.GetAllDbVersions()
	return private.dbglobal.dbversion
end

function RSGeneralDB.GetDbVersion()
	for _, dbversion in ipairs(RSGeneralDB.GetAllDbVersions()) do
		if (dbversion.locale == GetLocale()) then
			return dbversion
		end
	end

	return nil
end

function RSGeneralDB.AddDbVersion(newVersion)
	if (newVersion and private.dbglobal.dbversion) then
		local localeExisting = false;
		for i = #private.dbglobal.dbversion, 1, -1 do
			if (not localeExisting and private.dbglobal.dbversion[i].locale == GetLocale()) then
				localeExisting = true
				private.dbglobal.dbversion[i].version = newVersion
				private.dbglobal.dbversion[i].sync = nil
				RSLogger:PrintDebugMessage(string.format("Idioma [%s]. Actualizando BD a version [%s]", GetLocale(), newVersion))
			elseif (localeExisting and private.dbglobal.dbversion[i].locale == GetLocale()) then
				-- Fix issue with versions multiplicating
				tremove(private.dbglobal.dbversion, i)
				RSLogger:PrintDebugMessage(string.format("Idioma [%s]. Eliminado por estar repetido", GetLocale()))
			end
		end
		if (not localeExisting) then
			tinsert(private.dbglobal.dbversion, { locale = GetLocale(), version = newVersion })
			RSLogger:PrintDebugMessage(string.format("Idioma [%s]. Insertado version [%s] por primera vez para este idioma.", GetLocale(), newVersion))
		end
	end
end

function RSGeneralDB.GetLootDbVersion()
	return private.dbglobal.lootdbversion
end

function RSGeneralDB.SetLootDbVersion(version)
	private.dbglobal.lootdbversion = version
end

function RSGeneralDB.GetLastCleanDb()
	return private.dbchar.lastClean
end

function RSGeneralDB.SetLastCleanDb()
	private.dbchar.lastClean = time()
end