import Hanafuda;
import Messaging;
import * as Fun from UnitJS.Fun;

var dom = {
	deck: document.getElementById('deck'),
	rest: document.getElementById('rest'),
	status: document.getElementById('status')
};
var selected;
var sets = {};
var globalState = {
	game: null,
  playing: false,
  step: null,
  month: null,
	turnedCard: null,
};

return {
	dom: dom,
	getSelected: getSelected,
	init: init,
	matchingInRiver: matchingInRiver,
	play: play,
	select: select,
	sets: sets,
	globalState: globalState
};

function init() {
	buildSets();
}

function buildSets() {
  ['river', 'you', 'them'].forEach(function(id) {
    var setDom = document.getElementById(id);
    if(setDom.tagName.toLowerCase() == 'ul') {
      sets[id] = {card: null, dom: setDom};
    } else {
      sets[id] = {};
      for(var i = 0; i < setDom.children.length; i++) {
        if(setDom.children[i].tagName.toLowerCase() == 'ul') {
					var child = setDom.children[i].className;
          sets[id][child] = {card: {}, dom: setDom.children[i]};
        }
      }
    }
  });
}

function getSelected() {
	return selected;
}

function matchingInRiver(card) {
  return Fun.mapFilter(
    Fun.of(sets.river.card),
    Fun.defined
  )(Hanafuda.sameMonth(card).map(Fun.proj('name')));
}

function play(move) {
  Messaging.send({
    tag: "Play",
    move: move,
    onGame: globalState.game
  });
}

function showCandidates(card, yes) {
  matchingInRiver(card).forEach(
		function(riverCard) {riverCard.setCandidate(yes);}
	);
}

function select(cardOrFalse) {
	if(typeof cardOrFalse == 'object') {
		selected = cardOrFalse;
	}
	selected.dom.classList.toggle('selected', !!cardOrFalse);
	showCandidates(selected.value, !!cardOrFalse);
	if(cardOrFalse === false) {
		selected = null;
	}
}