local addonname, shared = ...
---@cast shared HeimdallShared
---@cast addonname string
local ModuleName = "Spotter"

---@diagnostic disable-next-line: missing-fields
shared.Spotter = {}
function shared.Spotter.Init()
	local function FormatHP(hp)
		if hp > 1e9 then
			return string.format("%.1fB", hp / 1e9)
		elseif hp > 1e6 then
			return string.format("%.1fM", hp / 1e6)
		elseif hp > 1e3 then
			return string.format("%.1fK", hp / 1e3)
		else
			return hp
		end
	end

	---@type table<string, number>
	local throttleTable = {}

	---@param unit string
	---@param name string
	---@param faction string
	---@param hostile boolean
	---@return boolean
	---@return string? error
	local function ShouldNotify(unit, name, faction, hostile)
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Checking notification criteria for %s (%s)", ModuleName, name, faction))
		end

		if Heimdall_Data.config.agents[name] then
			if Heimdall_Data.config.spotter.debug then
				print(string.format("[%s] Skipping agent: %s", ModuleName, name))
			end
			return false
		end

		if Heimdall_Data.config.spotter.stinky then
			if Heimdall_Data.config.stinkies[name] then
				if Heimdall_Data.config.spotter.debug then
					print(string.format("[%s] Notifying - Found stinky: %s", ModuleName, name))
				end
				return true
			end
		end

		if Heimdall_Data.config.spotter.alliance then
			if faction == "Alliance" then
				if Heimdall_Data.config.spotter.debug then
					print(string.format("[%s] Notifying - Found Alliance player: %s", ModuleName, name))
				end
				return true
			end
		end

		if Heimdall_Data.config.spotter.hostile then
			if hostile then
				if Heimdall_Data.config.spotter.debug then
					print(string.format("[%s] Notifying - Found hostile player: %s", ModuleName, name))
				end
				return true
			end
		end

		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Using everyone setting: %s", ModuleName,
				tostring(Heimdall_Data.config.spotter.everyone)))
		end
		return Heimdall_Data.config.spotter.everyone
	end

	---@param unit string
	---@return string?
	local function NotifySpotted(unit)
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Processing spotted unit: %s", ModuleName, unit))
		end

		if not unit then return string.format("Could not find unit %s", tostring(unit)) end
		if not UnitIsPlayer(unit) then
			if Heimdall_Data.config.spotter.debug then
				print(string.format("[%s] Ignoring non-player unit: %s", ModuleName, unit))
			end
			return nil
		end

		local name = UnitName(unit)
		if not name then return string.format("Could not find name for unit %s", tostring(unit)) end
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Processing player: %s", ModuleName, name))
		end

		local time = GetTime()
		if throttleTable[name] and time - throttleTable[name] < Heimdall_Data.config.spotter.throttleTime then
			if Heimdall_Data.config.spotter.debug then
				local remainingTime = Heimdall_Data.config.spotter.throttleTime - (time - throttleTable[name])
				print(string.format("[%s] Player %s throttled for %.1f more seconds", ModuleName, name, remainingTime))
			end
			return string.format("Throttled %s", tostring(name))
		end
		throttleTable[name] = time

		local race = UnitRace(unit)
		if not race then return string.format("Could not find race for unit %s", tostring(unit)) end
		local faction = shared.raceMap[race]
		if not faction then return string.format("Could not find faction for race %s", tostring(race)) end
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Player %s is %s (%s)", ModuleName, name, race, faction))
		end

		local hostile = UnitCanAttack("player", unit)
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Player %s is %s", ModuleName, name, hostile and "hostile" or "friendly"))
		end

		local doNotify = ShouldNotify(unit, name, faction, hostile)
		if not doNotify then
			if Heimdall_Data.config.spotter.debug then
				print(string.format("[%s] Skipping notification for %s", ModuleName, name))
			end
			return string.format("Not notifying for %s", tostring(name))
		end

		local hp = UnitHealth(unit)
		if not hp then return string.format("Could not find hp for unit %s", tostring(unit)) end
		local maxHp = UnitHealthMax(unit)
		if not maxHp then return string.format("Could not find maxHp for unit %s", tostring(unit)) end
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Player %s health: %s/%s", ModuleName, name, FormatHP(hp), FormatHP(maxHp)))
		end

		local class = UnitClass(unit)
		if not class then return string.format("Could not find class for unit %s", tostring(unit)) end

		local location = Heimdall_Data.config.spotter.zoneOverride
		if not location or location == "" then
			local zone = GetZoneText()
			if not zone then return string.format("Could not find zone for unit %s", tostring(unit)) end
			local subzone = GetSubZoneText()
			if not subzone then subzone = "" end
			if Heimdall_Data.config.spotter.debug then
				print(string.format("[%s] Player %s location: %s (%s)", ModuleName, name, zone, subzone))
			end
			location = string.format("%s (%s)", zone, subzone)
		end

		local x, y = GetPlayerMapPosition("player")
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Player %s coordinates: %.2f, %.2f", ModuleName, name, x * 100, y * 100))
		end

		local stinky = Heimdall_Data.config.stinkies[name] or false
		SetMapToCurrentZone()
		SetMapByID(GetCurrentMapAreaID())
		local text = string.format(shared.L.en.spotterSpotted,
			hostile and shared.L.en.tidbits.hostile or shared.L.en.tidbits.friendly,
			name,
			class,
			stinky and string.format("(%s)", "!!!!") or "",
			race,
			faction,
			string.gsub(FormatHP(hp), "M", "kk"),
			string.gsub(FormatHP(maxHp), "M", "kk"),
			location,
			tostring(GetCurrentMapAreaID()),
			x * 100, y * 100)

		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Sending notification: %s", ModuleName, text))
		end

		---@type Message
		local msg = {
			channel = "CHANNEL",
			data = Heimdall_Data.config.spotter.notifyChannel,
			message = text
		}
		table.insert(shared.messenger.queue, msg)

		local ruClass = shared.L.ru.classes[class]
		if not ruClass then
			print(string.format("[%s] Class %s not found in ru.classes", ModuleName, class))
		end
		local ruRace = shared.L.ru.races[race]
		if not ruRace then
			print(string.format("[%s] Race %s not found in ru.races", ModuleName, race))
		end
		local ruFaction = shared.L.ru.factions[faction]
		if not ruFaction then
			print(string.format("[%s] Faction %s not found in ru.factions", ModuleName, faction))
		end
		local zone, subzone = GetZoneText(), GetSubZoneText()
		local ruZone = shared.L.ru.zones[zone]
		if not ruZone then
			print(string.format("[%s] Zone %s not found in ru.zones", ModuleName, zone))
		end
		local ruSubzone = shared.L.ru.zones[subzone]
		if not ruSubzone then
			print(string.format("[%s] Subzone %s not found in ru.zones", ModuleName, subzone))
		end

		text = string.format(shared.L.ru.spotterSpotted,
			hostile and shared.L.ru.tidbits.hostile or shared.L.ru.tidbits.friendly,
			name,
			ruClass or class,
			stinky and string.format("(%s)", "!!!!") or "",
			ruRace or race,
			ruFaction or faction,
			FormatHP(hp),
			FormatHP(maxHp),
			string.format("%s (%s)", ruZone or zone, ruSubzone or subzone),
			tostring(GetCurrentMapAreaID()),
			x * 100, y * 100)

		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Sending notification: %s", ModuleName, text))
		end

		---@type Message
		msg = {
			channel = "CHANNEL",
			data = Heimdall_Data.config.spotter.notifyChannel .. "ru",
			message = text
		}
		table.insert(shared.messenger.queue, msg)
	end

	local frame = CreateFrame("Frame")
	frame:RegisterEvent("NAME_PLATE_UNIT_ADDED")
	frame:RegisterEvent("UNIT_TARGET")
	frame:SetScript("OnEvent", function(self, event, unit)
		if Heimdall_Data.config.spotter.debug then
			print(string.format("[%s] Event received: %s for unit: %s", ModuleName, event, unit or "target"))
		end

		if not Heimdall_Data.config.spotter.enabled then
			if Heimdall_Data.config.spotter.debug then
				print(string.format("[%s] Module disabled, ignoring event", ModuleName))
			end
			return
		end

		if event == "UNIT_TARGET" then
			unit = "target"
		end

		local err = NotifySpotted(unit)
		if err then
			if Heimdall_Data.config.spotter.debug then
				print(string.format("[%s] Error processing unit %s: %s", ModuleName, unit, err))
			end
		end
	end)

	if Heimdall_Data.config.spotter.debug then
		print(string.format("[%s] Module initialized", ModuleName))
	end
	print("[Heimdall] Spotter loaded")
end