open System
open System.IO

// _____ _   _ _____ _____ _____  ______  _  _   _____  _____ _     
//|  __ \ | | |  ___/  ___/  ___| |  ___|| || |_|  _  ||  _  | |    
//| |  \/ | | | |__ \ `--.\ `--.  | |_ |_  __  _| | | || | | | |    
//| | __| | | |  __| `--. \`--. \ |  _| _| || |_| | | || | | | |    
//| |_\ \ |_| | |___/\__/ /\__/ / | |  |_  __  _\ \_/ /\ \_/ / |____
// \____/\___/\____/\____/\____/  \_|    |_||_|  \___/  \___/\_____/
//                                                                  
//                                                                  

let game() = 
    let mutable notFound = true

    let fivetimestable = 
        seq { for i in 5 .. 5 .. 100 do yield i }

    let random = new Random(System.DateTime.Now.Millisecond)
    let next = random.Next(10)
    let ans = (Seq.nth next fivetimestable)

    Console.WriteLine("What's your name?")
    let name = Console.ReadLine()
    Console.WriteLine("Guess!")

    let mutable goes = 1

    let stopWatch = new System.Diagnostics.Stopwatch()
    stopWatch.Start() |> ignore

    while notFound do
        let guess = System.Int32.Parse(System.Console.ReadLine())
        if ans.Equals(guess) then
            notFound <- false
            stopWatch.Stop() |> ignore
        else 
            goes <- goes + 1

    Console.BackgroundColor <- ConsoleColor.Blue
    let time = (stopWatch.ElapsedMilliseconds / 1000L)
    Console.WriteLine("You did it {0} it took you {1} goes in {2} seconds", name, goes, time)

    name, goes, time

let highscore(result) =
    let name, goes, time = result
    let fileName = Environment.CurrentDirectory + "/highscores.txt"
    let scores = File.ReadAllLines(fileName)
    let newScore = [| String.Format("{0}, {1}, {2}", name.ToString(), goes.ToString(), time.ToString()) |]
    let newHighScores = Seq.append scores newScore
    File.WriteAllLines(fileName, newHighScores)  

    newHighScores |> Seq.iter (fun l -> Console.WriteLine(l))

    ()

[<EntryPoint>]
let main argv =  
// Should be broken down into loads of lovely little funcs but..... 
// _   _______ _     _____ 
//\ \ / /  _  | |   |  _  |
// \ V /| | | | |   | | | |
//  \ / | | | | |   | | | |
//  | | \ \_/ / |___\ \_/ /
//  \_/  \___/\_____/\___/ 
//                         
 
    let result = game()
    highscore(result) |> ignore
    Console.ReadKey() |> ignore
    0 // return an integer exit code


// this needs to be in a file called highscores.txt

//    .__                                                _____          .__        
//|  |   ____ _____     ____  __ __   ____     _____/ ____\ __  _  _|__| ____  
//|  | _/ __ \\__  \   / ___\|  |  \_/ __ \   /  _ \   __\  \ \/ \/ /  |/    \ 
//|  |_\  ___/ / __ \_/ /_/  >  |  /\  ___/  (  <_> )  |     \     /|  |   |  \
//|____/\___  >____  /\___  /|____/  \___  >  \____/|__|      \/\_/ |__|___|  /
//          \/     \//_____/             \/                                 \/ 
//
//Name, Goes, Time