--[[
  99 Nights - A Roblox Luau Adaptation
  Based on the classic "99 Nights" game concept
]]

local ServerScriptService = game:GetService("ServerScriptService")
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local RunService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")

-- Module dependencies
local EnemySpawner = require(script.EnemySpawner)
local WaveManager = require(script.WaveManager)
local PlayerManager = require(script.PlayerManager)

-- Configuration
local CONFIG = {
    TotalNights = 99,
    NightDuration = 120, -- seconds per night
    BreakTime = 30, -- seconds between nights
    MaxEnemies = 50,
    SpawnRadius = 100,
    EnemyTypes = {
        {Name = "Goblin", Health = 50, Damage = 10, Speed = 16, Reward = 10},
        {Name = "Orc", Health = 100, Damage = 20, Speed = 12, Reward = 20},
        {Name = "Troll", Health = 200, Damage = 30, Speed = 8, Reward = 30},
        {Name = "Demon", Health = 500, Damage = 50, Speed = 14, Reward = 50}
    }
}

-- Game State
local GameState = {
    CurrentNight = 0,
    IsNight = false,
    IsGameOver = false,
    TotalEnemiesKilled = 0,
    TotalScore = 0
}

-- Initialize Remote Events/Functions
local RemoteEvents = {
    UpdateNight = Instance.new("RemoteEvent"),
    UpdateScore = Instance.new("RemoteEvent"),
    GameOver = Instance.new("RemoteEvent"),
    EnemySpawned = Instance.new("RemoteEvent"),
    EnemyKilled = Instance.new("RemoteEvent")
}

for name, event in pairs(RemoteEvents) do
    event.Name = name
    event.Parent = ReplicatedStorage
end

-- Main Game Manager
local GameManager = {}
GameManager.__index = GameManager

function GameManager.new()
    local self = setmetatable({}, GameManager)
    self.State = table.clone(GameState)
    self.Enemies = {}
    self.Players = {}
    self.WaveManager = WaveManager.new(CONFIG)
    self.EnemySpawner = EnemySpawner.new(CONFIG, self.Enemies)
    
    return self
end

function GameManager:StartGame()
    print("Starting 99 Nights!")
    
    -- Connect player events
    Players.PlayerAdded:Connect(function(player)
        self:OnPlayerAdded(player)
    end)
    
    Players.PlayerRemoving:Connect(function(player)
        self:OnPlayerRemoved(player)
    end)
    
    -- Start first night
    task.wait(5) -- Initial countdown
    self:StartNight()
end

function GameManager:StartNight()
    if self.State.CurrentNight >= CONFIG.TotalNights then
        self:GameOver(true)
        return
    end
    
    self.State.CurrentNight += 1
    self.State.IsNight = true
    self.State.NightStartTime = tick()
    
    print(string.format("Night %d has begun!", self.State.CurrentNight))
    
    -- Notify all players
    RemoteEvents.UpdateNight:FireAllClients(self.State.CurrentNight, true)
    
    -- Start enemy spawning
    self.WaveManager:StartWave(self.State.CurrentNight)
    
    -- Night timer
    task.delay(CONFIG.NightDuration, function()
        if self.State.IsNight then
            self:EndNight()
        end
    end)
end

function GameManager:EndNight()
    if not self.State.IsNight then return end
    
    self.State.IsNight = false
    self.State.TotalEnemiesKilled += self.WaveManager:GetKilledCount()
    
    print(string.format("Night %d completed! Score: %d", self.State.CurrentNight, self.State.TotalScore))
    
    RemoteEvents.UpdateNight:FireAllClients(self.State.CurrentNight, false)
    
    -- Check for survival bonus
    local alivePlayers = self:GetAlivePlayers()
    if