/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */

if (!globals.contains("irc")) {
	globals.irc = log
}

hm = {
	max_errors = 6

	h_word = null
	h_arr = null
	guesses = 0
	errors = 0
	a_arr = null
	misses = ""

	if (irc) {
		hangman_output = irc
	} else {
		hangman_output = log
	}

	function str2arr(str) { 
		var arr = []

		for (i in range(str.len())) { 
			arr.add(str.substr(i, 1))
		}

		return arr
	}

	function init(s) {
		s = s.upper()
		h_word = s
		h_arr = str2arr(h_word)
		guesses = 0
		errors = 0
		a_arr = h_arr.clone()
		misses = ""

		for (x in range(a_arr.len())) {
			a_arr[x] = (h_arr[x] == " ")
		}
	}

	function print_progress() {
		var ir

		for (x in range(a_arr.len())) {
			if (a_arr[x]) {
				ir += h_arr[x]
			} else {
				ir += "_"
			}

			ir += " "
		}

		hangman_output(ir)
		hangman_output(errors + "/" + (max_errors + 1) + " errors made: " + misses)
	}

	function create_hint() {
		var r = Math.floor(Math.random() * a_arr.len())
		if (!a_arr[r]) {
			a_arr[r] = true
			for (x in range(h_arr.len())) {
				if (h_arr[x] == h_arr[r]) {
					a_arr[x]=true
				}
			}
		} else {
			if (a_arr.contains(false)) {
				create_hint()
			} else {
				winner()
			}
		}

		if (!a_arr.contains(false)) {
			winner()
		}
	}

	function hint(i) {
		for (x in range(i)) {
			create_hint()
		}

		print_progress()
	}

	function winner() {
		if (h_word) {
			hangman_output("Congratulations, you are a winner in " + guesses + " guesses.")
			h_word = null
		}
	}

	function guess(s) {
		if (!h_word) {
			hangman_output("Please set a word with hm.init(\"word\")")
			return
		}

		s = s.upper()

		if (s.len() != 1) {
			hangman_output("NEIN!")
			return
		}	

		var correct = false
		for (x in range(h_arr.len())) {
			if (h_arr[x] == s) {
				a_arr[x] = true
				correct = true
			}
		}

		if (!correct) {
			misses += s + " "
			errors += 1
		}
		
		print_progress()

		guesses += 1

		if (!a_arr.contains(false)) {
			winner()
			return
		}

		if (errors > max_errors) {
			hangman_output("You died...")
			hangman_output(" ________")
			hangman_output(" |/      |")
			hangman_output(" |      (_)")
			hangman_output(" |      \\|/")
			hangman_output(" |       |")
			hangman_output(" |      / \\")
			hangman_output(" |")
			hangman_output("_|___")
			remove("h_word")
			return
		}
	}

	function clone() {
		var n = Dictionary.prototype.clone.call(this)

		if (h_arr) {
			n.h_arr = h_arr.clone()
		}

		if (a_arr) {
			n.a_arr = a_arr.clone()
		}

		return n
	}
}