local internalNpcName = "Vescu"
local npcType = Game.createNpcType(internalNpcName)
local npcConfig = {}

npcConfig.name = internalNpcName
npcConfig.description = internalNpcName

npcConfig.health = 100
npcConfig.maxHealth = npcConfig.health
npcConfig.walkInterval = 2000
npcConfig.walkRadius = 2

npcConfig.outfit = {
	lookType = 152,
	lookHead = 119,
	lookBody = 120,
	lookLegs = 119,
	lookFeet = 101,
	lookAddons = 3,
}

npcConfig.flags = {
	floorchange = false,
}

local keywordHandler = KeywordHandler:new()
local npcHandler = NpcHandler:new(keywordHandler)

npcType.onThink = function(npc, interval)
	npcHandler:onThink(npc, interval)
end

npcType.onAppear = function(npc, creature)
	npcHandler:onAppear(npc, creature)
end

npcType.onDisappear = function(npc, creature)
	npcHandler:onDisappear(npc, creature)
end

npcType.onMove = function(npc, creature, fromPosition, toPosition)
	npcHandler:onMove(npc, creature, fromPosition, toPosition)
end

npcType.onSay = function(npc, creature, type, message)
	npcHandler:onSay(npc, creature, type, message)
end

npcType.onCloseChannel = function(npc, creature)
	npcHandler:onCloseChannel(npc, creature)
end

local topic = {}

local config = {
	["30 bonelord eyes"] = { storageValue = 1, text = { "Have you really managed to bring me 30 bonelord eyes? <hicks>", "Do bonelord eyes continue blinking when they are seperated from the bonelord? That is a scary thought.", "Aw-awsome! <hicks> Squishy! Now, please bring me 10 {red dragon scales}." }, itemId = 5898, count = 30 },
	["bonelord eyes"] = { storageValue = 1, text = { "Have you really managed to bring me 30 bonelord eyes? <hicks>", "Do bonelord eyes continue blinking when they are seperated from the bonelord? That is a scary thought.", "Aw-awsome! <hicks> Squishy! Now, please bring me 10 {red dragon scales}." }, itemId = 5898, count = 30 },
	["bonelord eye"] = { storageValue = 1, text = { "Have you really managed to bring me 30 bonelord eyes? <hicks>", "Do bonelord eyes continue blinking when they are seperated from the bonelord? That is a scary thought.", "Aw-awsome! <hicks> Squishy! Now, please bring me 10 {red dragon scales}." }, itemId = 5898, count = 30 },
	["10 red dragon scales"] = { storageValue = 2, text = { "D-did you get all of the 10 red dragon scales? <hicks>", "Have you ever wondered if a red dragon means 'stop' whereas a green dragon means 'go'?", "G-good work, ... wha-what's your name again? <hicks> Anyway... come back with 30 {lizard scales}." }, itemId = 5882, count = 10 },
	["red dragon scales"] = { storageValue = 2, text = { "D-did you get all of the 10 red dragon scales? <hicks>", "Have you ever wondered if a red dragon means 'stop' whereas a green dragon means 'go'?", "G-good work, ... wha-what's your name again? <hicks> Anyway... come back with 30 {lizard scales}." }, itemId = 5882, count = 10 },
	["red dragon scale"] = { storageValue = 2, text = { "D-did you get all of the 10 red dragon scales? <hicks>", "Have you ever wondered if a red dragon means 'stop' whereas a green dragon means 'go'?", "G-good work, ... wha-what's your name again? <hicks> Anyway... come back with 30 {lizard scales}." }, itemId = 5882, count = 10 },
	["30 lizard scales"] = { storageValue = 3, text = { "Ah, are those - <hicks> - the 30 lizard scales?", "I once had a girlfriend c-called L-lizzie. She had s-scales too.", "This potion will become p-pretty scaly. I'm not sure yet if I want to d-drink that. I think the 20 {fish fins} which come next won't really improve it. <hicks>" }, itemId = 5881, count = 30 },
	["lizard scales"] = { storageValue = 3, text = { "Ah, are those - <hicks> - the 30 lizard scales?", "I once had a girlfriend c-called L-lizzie. She had s-scales too.", "This potion will become p-pretty scaly. I'm not sure yet if I want to d-drink that. I think the 20 {fish fins} which come next won't really improve it. <hicks>" }, itemId = 5881, count = 30 },
	["lizard scale"] = { storageValue = 3, text = { "Ah, are those - <hicks> - the 30 lizard scales?", "I once had a girlfriend c-called L-lizzie. She had s-scales too.", "This potion will become p-pretty scaly. I'm not sure yet if I want to d-drink that. I think the 20 {fish fins} which come next won't really improve it. <hicks>" }, itemId = 5881, count = 30 },
	["20 fish fins"] = {
		storageValue = 4,
		text = { "Eww, is that disgusting smell coming from the 20 fish fins? <burps>", "Not normal fish fins of course. We need <hicks> Quara fish fins. If you haven't h-heard about them, ask the - <hicks> - plorer society.", "Alrrrrrrright! Thanks for the f-fish. Get me the 20 ounces of {vampire dust} now. I'll have another b-beer." },
		itemId = 5895,
		count = 20,
	},
	["fish fins"] = { storageValue = 4, text = { "Eww, is that disgusting smell coming from the 20 fish fins? <burps>", "Not normal fish fins of course. We need <hicks> Quara fish fins. If you haven't h-heard about them, ask the - <hicks> - plorer society.", "Alrrrrrrright! Thanks for the f-fish. Get me the 20 ounces of {vampire dust} now. I'll have another b-beer." }, itemId = 5895, count = 20 },
	["fish fin"] = { storageValue = 4, text = { "Eww, is that disgusting smell coming from the 20 fish fins? <burps>", "Not normal fish fins of course. We need <hicks> Quara fish fins. If you haven't h-heard about them, ask the - <hicks> - plorer society.", "Alrrrrrrright! Thanks for the f-fish. Get me the 20 ounces of {vampire dust} now. I'll have another b-beer." }, itemId = 5895, count = 20 },
	["20 vampire dust"] = { storageValue = 5, text = { "Have you collected 20 ounces of vampire d-dust? <hicks>", "Don't you think vampires have something - <hicks> - romantic about them? I think you need a b-blessed steak though to turn them into d-dust.", "Tha-thank you. Trolls are good for something a-after all. Bring me the 10 ounces of {demon dust} now. <hicks>" }, itemId = 5905, count = 20 },
	["vampire dust"] = { storageValue = 5, text = { "Have you collected 20 ounces of vampire d-dust? <hicks>", "Don't you think vampires have something - <hicks> - romantic about them? I think you need a b-blessed steak though to turn them into d-dust.", "Tha-thank you. Trolls are good for something a-after all. Bring me the 10 ounces of {demon dust} now. <hicks>" }, itemId = 5905, count = 20 },
	["10 demon dust"] = {
		storageValue = 6,
		text = { "Have you slain enough d-demons to gather 10 ounces of demon dust? <hicks>", "I like d-demons. They are just as pretty as flamingos. But you need a blessed stake or something to get demon dust. <hicks>", "G-great. You're a reeeal k-killer like me, eh? I think I'll g-give you something fun when the potion is complete. But first, b-bring me {warrior's sweat}." },
		itemId = 5906,
		count = 10,
	},
	["demon dust"] = {
		storageValue = 6,
		text = { "Have you slain enough d-demons to gather 10 ounces of demon dust? <hicks>", "I like d-demons. They are just as pretty as flamingos. But you need a blessed stake or something to get demon dust. <hicks>", "G-great. You're a reeeal k-killer like me, eh? I think I'll g-give you something fun when the potion is complete. But first, b-bring me {warrior's sweat}." },
		itemId = 5906,
		count = 10,
	},
	["warrior's sweat"] = {
		storageValue = 7,
		text = { "This s-smells even worse than the fish fins. Is that warrior's sweat?", "If you can't sweat enough yourself, go ask a Djinn. They do - <hicks> magical <hicks> - tractions. Err, extractions.", "Yahaha! Here we g-go. I'll just take a small sip - <gulp>. Okay, this is disgusting, but it seems to work. I'll teach you something fun, remind me to tell you a {secret} sometime." },
		itemId = 5885,
	},
}

local function endConversationWithDelay(npcHandler, npc, creature)
	addEvent(function()
		npcHandler:unGreet(npc, creature)
	end, 1000)
end

local function greetCallback(npc, creature)
	local playerId = creature:getId()
	if Player(creature):getCondition(CONDITION_DRUNK) and player:getStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit) < 1 then
		npcHandler:setMessage(MESSAGE_GREET, "Hey t-there, you look like someone who enjoys a good {booze}.")
		npcHandler:setInteraction(npc, creature)
	else
		npcHandler:say("Oh, two t-trolls. Hellooo, wittle twolls. <hicks>", npc, creature)
		endConversationWithDelay(npcHandler, npc, creature)
		return false
	end

	return true
end

local function creatureSayCallback(npc, creature, type, message)
	local player = Player(creature)
	local playerId = player:getId()

	if not npcHandler:checkInteraction(npc, creature) then
		return false
	end

	if MsgContains(message, "sober") then
		if player:getStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit) < 1 then
			npcHandler:say("I wish there was like a {potion} which makes you sober in an instant. Dwarven rings wear off so fast. <hicks>", npc, creature)
			npcHandler:setTopic(playerId, 1)
		end
	elseif MsgContains(message, "potion") then
		if npcHandler:getTopic(playerId) == 1 then
			if player:getStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit) < 1 then
				npcHandler:say("It's so hard to know the exact time when to stop drinking. <hicks> C-could you help me to brew such a potion?", npc, creature)
				npcHandler:setTopic(playerId, 2)
			end
		end
	elseif config[message] and npcHandler:getTopic(playerId) == 0 then
		if player:getStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit) == config[message].storageValue then
			npcHandler:say(config[message].text[1], npc, creature)
			npcHandler:setTopic(playerId, 4)
			topic[playerId] = message
		else
			npcHandler:say(config[message].text[2], npc, creature)
		end
	elseif MsgContains(message, "secret") then
		if player:getStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit) == 8 then
			npcHandler:say("Right. <hicks> Since you helped me to b-brew that potion and thus ensured the high quality of my work <hicks>, I'll give you my old assassin costume. It lacks the head part, but it's almost like new. Don't pretend to be me though, 'kay? <hicks>", npc, creature)
			player:addOutfit(156)
			player:addOutfit(152)
			player:getPosition():sendMagicEffect(CONST_ME_MAGIC_GREEN)
			player:setStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit, 9)
		end
	elseif MsgContains(message, "yes") then
		if npcHandler:getTopic(playerId) == 2 then
			npcHandler:say({
				"You're a true buddy. I promise I will t-try to avoid killing you even if someone asks me to. <hicks> ...",
				"Listen, I have this old formula from my grandma. <hicks> It says... 30 {bonelord eyes}... 10 {red dragon scales}. ...",
				"Then 30 {lizard scales}... 20 {fish fins} - ew, this sounds disgusting, I wonder if this is really a potion or rather a cleaning agent. ...",
				"Add 20 ounces of {vampire dust}, 10 ounces of {demon dust} and mix well with one flask of {warrior's sweat}. <hicks> ...",
				"Okayyy, this is a lot... we'll take this step by step. <hicks> Will you help me gathering 30 {bonelord eyes}?",
			}, npc, creature)
			npcHandler:setTopic(playerId, 3)
		elseif npcHandler:getTopic(playerId) == 3 then
			if player:getStorageValue(Storage.OutfitQuest.DefaultStart) ~= 1 then
				player:setStorageValue(Storage.OutfitQuest.DefaultStart, 1)
			end
			player:setStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit, 1)
			npcHandler:say("G-good. Go get them, I'll have a beer in the meantime.", npc, creature)
			npcHandler:setTopic(playerId, 0)
		elseif npcHandler:getTopic(playerId) == 4 then
			local targetMessage = config[topic[playerId]]
			local count = targetMessage.count or 1
			if not player:removeItem(targetMessage.itemId, count) then
				npcHandler:say("Next time you lie to me I'll k-kill you. <hicks> Don't think I can't aim well just because I'm d-drunk.", npc, creature)
				npcHandler:setTopic(playerId, 0)
				return true
			end

			player:setStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit, player:getStorageValue(Storage.Quest.U7_8.AssassinOutfits.AssassinBaseOutfit) + 1)
			npcHandler:say(targetMessage.text[3], npc, creature)
			npcHandler:setTopic(playerId, 0)
		end
	elseif MsgContains(message, "no") then
		if npcHandler:getTopic(playerId) ~= 4 then
			npcHandler:say("Then not <hicks>.", npc, creature)
		elseif npcHandler:getTopic(playerId) == 4 then
			npcHandler:say("H-hurry up! <hicks> I have to start working soon.", npc, creature)
		end
		npcHandler:setTopic(playerId, 0)
	end
	return true
end

local function onReleaseFocus(npc, creature)
	local playerId = creature:getId()
	topic[playerId] = nil
end

npcHandler:setMessage(MESSAGE_FAREWELL, "T-time for another b-beer. <hicks>")
npcHandler:setMessage(MESSAGE_WALKAWAY, "Oh, two t-trolls. Hellooo, wittle twolls. <hicks>")

npcHandler:setCallback(CALLBACK_GREET, greetCallback)
npcHandler:setCallback(CALLBACK_MESSAGE_DEFAULT, creatureSayCallback)
npcHandler:setCallback(CALLBACK_REMOVE_INTERACTION, onReleaseFocus)
npcHandler:addModule(FocusModule:new(), npcConfig.name, true, true, true)

-- npcType registering the npcConfig table
npcType:register(npcConfig)
