local addonname, shared = ...
---@cast shared HeimdallShared
---@cast addonname string

local helpMessages = {
	ru = {
		"1) who - пишет вам никнеймы текущих врагов в отслеживаемых локациях по порядку и локацию.",
		"2) classes = пишет какие классы. (например 1 паладин 1 прист 1 рога.",
		"3) howmany - общее число врагов (например дуротар 4 . оргримар 2 ) ",
		"4) + - автоматическое приглашение в группу с дуельным рогой для сброса кд и общего сбора. ",
		"5) ++ - автоматическое приглашение в группу альянса. (если нужен рефрак)",
	},
	en = {
		"1) who - reports currently tracked stinkies in orgrimmar and durotar",
		"2) classes - reports stinkies grouped by class",
		"3) howmany - reports stinkies grouped by zone",
		"4) + - automatically invites to group with duel rogue for cd reset",
		"5) ++ - automatically invites to alliance group",
	}
}

---@diagnostic disable-next-line: missing-fields
shared.Commander = {}
function shared.Commander.Init()
	---@param text string
	---@param size number
	---@return string[]
	local function Partition(text, size)
		local words = {}
		for word in text:gmatch("[^,]+") do
			words[#words + 1] = word
		end

		local ret = {}
		local currentChunk = ""

		for _, word in ipairs(words) do
			if #currentChunk + #word + 1 <= size then
				currentChunk = currentChunk .. (currentChunk == "" and word or " " .. word)
			else
				if #currentChunk > 0 then
					ret[#ret + 1] = currentChunk
				end
				currentChunk = word
			end
		end

		if #currentChunk > 0 then
			ret[#ret + 1] = currentChunk
		end

		return ret
	end
	---@param arr table<string, Player>
	---@return string[]
	local function Count(arr)
		local ret = {}
		for _, player in pairs(arr) do
			if Heimdall_Data.config.who.zoneNotifyFor[player.zone] then
				ret[player.zone] = (ret[player.zone] or 0) + 1
			end
		end
		local text = {}
		for zone, count in pairs(ret) do
			text[#text + 1] = string.format("%s: %d", zone, count)
		end
		return text
	end
	---@param arr table<string, Player>
	---@return string[]
	local function CountPartitioned(arr)
		local count = Count(arr)
		local text = {}
		for _, line in pairs(Partition(strjoin(", ", unpack(count)), 200)) do
			text[#text + 1] = line
		end
		return text
	end
	---@param arr table<string, Player>
	---@return string[]
	local function Who(arr)
		local ret = {}
		for _, player in pairs(arr) do
			if Heimdall_Data.config.who.zoneNotifyFor[player.zone] then
				ret[#ret + 1] = string.format("%s/%s (%s) %s", player.name, player.class, player.zone,
					player.stinky and "(!!!!)" or "")
			end
		end
		return ret
	end
	---@param arr table<string, Player>
	---@return string[]
	local function WhoPartitioned(arr)
		local who = Who(arr)
		local text = {}
		for _, line in pairs(Partition(strjoin(", ", unpack(who)), 200)) do
			text[#text + 1] = line
		end
		return text
	end
	---@param arr table<string, Player>
	---@return string[]
	local function CountClass(arr)
		local ret = {}
		for _, player in pairs(arr) do
			if Heimdall_Data.config.who.zoneNotifyFor[player.zone] then
				ret[player.class] = (ret[player.class] or 0) + 1
			end
		end
		local text = {}
		for class, count in pairs(ret) do
			text[#text + 1] = string.format("%s: %d", class, count)
		end
		return text
	end
	---@param arr table<string, Player>
	---@return string[]
	local function CountClassPartitioned(arr)
		local countClass = CountClass(arr)
		local text = {}
		for _, line in pairs(Partition(strjoin(", ", unpack(countClass)), 200)) do
			text[#text + 1] = line
		end
		return text
	end
	local function CountClassPartitionedStinkies()
		local res = CountClassPartitioned(HeimdallStinkies)
		if #res == 0 then
			return { "No stinkies found" }
		end
		return res
	end
	local function WhoPartitionedStinkies()
		local res = WhoPartitioned(HeimdallStinkies)
		if #res == 0 then
			return { "No stinkies found" }
		end
		return res
	end
	local function CountPartitionedStinkies()
		local res = CountPartitioned(HeimdallStinkies)
		if #res == 0 then
			return { "No stinkies found" }
		end
		return res
	end
	local function HelpRu() return helpMessages.ru end
	local function HelpEn() return helpMessages.en end
	local groupInviteFrame = CreateFrame("Frame")
	groupInviteFrame:SetScript("OnEvent", function(self, event, ...)
		AcceptGroup()
		groupInviteFrame:UnregisterEvent("PARTY_INVITE_REQUEST")
		C_Timer.NewTimer(0.1, function()
			_G["StaticPopup1Button1"]:Click()
		end, 1)
	end)
	local function JoinGroup()
		groupInviteFrame:RegisterEvent("PARTY_INVITE_REQUEST")
		C_Timer.NewTimer(10, function()
			groupInviteFrame:UnregisterEvent("PARTY_INVITE_REQUEST")
		end, 1)
		return { "+" }
	end
	local function LeaveGroup()
		LeaveParty()
		return {}
	end
	---@param target string
	local function FollowTarget(target)
		if not target then return end
		FollowUnit(target)
		return {}
	end

	---@class Command
	---@field keywordRe string
	---@field commanderOnly boolean
	---@field callback fun(...: any): string[]

	local commands = {
		{ keywordRe = "^who",        commanderOnly = false, callback = WhoPartitionedStinkies },
		{ keywordRe = "^howmany",    commanderOnly = false, callback = CountPartitionedStinkies },
		{ keywordRe = "^classes",    commanderOnly = false, callback = CountClassPartitionedStinkies },
		{ keywordRe = "^help",       commanderOnly = false, callback = HelpRu },
		{ keywordRe = "^helpen",     commanderOnly = false, callback = HelpEn },
		{ keywordRe = "^joingroup",  commanderOnly = false,  callback = JoinGroup },
		{ keywordRe = "^leavegroup", commanderOnly = false,  callback = LeaveGroup },
		{ keywordRe = "^follow",     commanderOnly = false,  callback = FollowTarget },
	}

	local commanderChannelFrame = CreateFrame("Frame")
	commanderChannelFrame:RegisterEvent("CHAT_MSG_CHANNEL")
	commanderChannelFrame:SetScript("OnEvent", function(self, event, msg, sender, ...)
		if not Heimdall_Data.config.commander.enabled then return end
		local channelId = select(6, ...)
		local _, channelname = GetChannelName(channelId)
		if channelname ~= Heimdall_Data.config.commander.masterChannel then return end
		sender = string.match(sender, "^[^-]+")

		for _, command in ipairs(commands) do
			local enabled = Heimdall_Data.config.commander.commands[command.keywordRe] == true or false
			if enabled and
				(not command.commanderOnly
					or (command.commanderOnly
						and sender == Heimdall_Data.config.commander.commander)) then
				if msg:match(command.keywordRe) then
					local messages = command.callback({ strsplit(" ", msg) })
					for _, message in ipairs(messages) do
						---@type Message
						local msg = {
							channel = "CHANNEL",
							data = channelname,
							message = message
						}
						table.insert(shared.messenger.queue, msg)
					end
				end
			end
		end
	end)

	print("Heimdall - Commander loaded")
end