fn setup(data) {
	print("Setting up UNO for " + data.players + " players");

	// print(data.piles.deck);

	data.piles.deck = shuffle(data.piles.deck);

	// print(data.piles.deck);

	// print(data.player_piles);

	for i in range(0, 7) {
		// print(i);
		for player_idx in range(0, data.player_piles.len) {
			// print("Deck" + player);
			let drawed_card = data.piles.deck.cards.pop();
			// print(player.deck.cards);
			data.player_piles[player_idx].deck.cards.push(drawed_card);
			// print(player.deck.cards);
		}
	}
	let drawed_card = data.piles.deck.cards.pop();
	data.piles.placed.cards.push(drawed_card);
	// print(data.player_piles);
	// print(data.piles.deck);
	data.fw = true;
	data.skip = false;
	data.next_plus4 = 0;
	data.next_plus2 = 0;
	data.selecting_color_plus4 = false;
	data.selecting_color = false;
	return data;
}

fn turn_end(data, player) {
	print("Turn for " + player + " ending");

	let s = if data.skip {2} else {1};
	if data.fw {
		player.add(s);
	}else{
		player.sub(s);
	}
	data.skip = false;
	// TODO Add has_finished condition
	return [data, player, false];
}

fn turn_start(data, player) {
	print("Turn for " + player + " starting");
	return data;
}

fn on_click(data, card, action_author, current_player) {
	if action_author == current_player {
		if data.selecting_color_plus4 {
			print(card);
			if card.pile_kind != "common" && card.pile_name == "color_select" {
				data.selecting_color_plus4 = false;
				let c = data.pop_card(card);
				data.piles.placed.cards.push(c);
				data.player_piles[current_player.val].color_select.cards = [];
				data.next_plus4 += 1;
				data.player_piles[current_player.val].color_select.visible = false;
				data.player_piles[current_player.val].deck.visible = true;
				return [data, true];
			}else{
				return [data, false];
			}
		}else if data.selecting_color {
			print(card);
			if card.pile_kind != "common" && card.pile_name == "color_select" {
				data.selecting_color = false;
				let c = data.pop_card(card);
				data.piles.placed.cards.push(c);
				data.player_piles[current_player.val].color_select.cards = [];
				data.player_piles[current_player.val].color_select.visible = false;
				data.player_piles[current_player.val].deck.visible = true;
				return [data, true];
			}else{
				return [data, false];
			}
		}else{
			if card.pile_kind == "common" {
				if card.pile_name == "deck" {
					if data.next_plus4 == 0 && data.next_plus2 == 0  {
						// Get a card from the deck
						data = draw(data, current_player);
						return [data, true]; // TODO: Turn shouldn't end on draw, if placeable, the card should be placed or kept
					}else if data.next_plus2 == 0 {
						for i in range(0, data.next_plus4*4) {
							data = draw(data, current_player);
						}
						data.next_plus4 = 0;
						return [data, true];
					}else{
						for i in range(0, data.next_plus2*2) {
							data = draw(data, current_player);
						}
						data.next_plus2 = 0;
						return [data, true];
					}
					
				}
			}else{
				if card.pile_name == "deck" {
					let c = data.get_card(card);
					switch c.kind {
						"+4" => {
							data.selecting_color_plus4 = true;
							data.pop_card(card);
							data.player_piles[current_player.val].color_select.cards.push(new_card("G+4"));
							data.player_piles[current_player.val].color_select.cards.push(new_card("R+4"));
							data.player_piles[current_player.val].color_select.cards.push(new_card("B+4"));
							data.player_piles[current_player.val].color_select.cards.push(new_card("Y+4"));
							data.player_piles[current_player.val].color_select.visible = true;
							data.player_piles[current_player.val].deck.visible = false;

							return [data, false];
						}
						"COLORCHANGE" => if data.next_plus4 == 0 {
							
							data.selecting_color = true;
							data.pop_card(card);
							data.player_piles[current_player.val].color_select.cards.push(new_card("GCOLORCHANGE"));
							data.player_piles[current_player.val].color_select.cards.push(new_card("RCOLORCHANGE"));
							data.player_piles[current_player.val].color_select.cards.push(new_card("BCOLORCHANGE"));
							data.player_piles[current_player.val].color_select.cards.push(new_card("YCOLORCHANGE"));
							data.player_piles[current_player.val].color_select.visible = true;
							data.player_piles[current_player.val].deck.visible = false;

							return [data, false];
						}
						_ => if data.next_plus4 == 0 {
							let last_card = data.piles.placed.cards[data.piles.placed.cards.len-1];
							print(last_card);
							print(c);
							if last_card.other.color == c.other.color || last_card.other.number == c.other.number {
								if data.next_plus2 == 0 {
									data.pop_card(card);
									data.piles.placed.cards.push(c);
									switch c.other.number {
										"REVERSE" => {data.fw = !data.fw}
										"SKIP" => {data.skip = true}
										"+2" => {data.next_plus2 += 1}
									}
									return [data, true];
								} else if c.other.number == "+2" {
									data.pop_card(card);
									data.piles.placed.cards.push(c);
									data.next_plus2 += 1;
									return [data, true];
								}else{
									return [data, false];
								}
								
							} else {
								return [data, false];
							}
						}
					}
				}
			}
		}
		return [data, true];
		
	}
	return [data, false];
}

fn draw(data, current_player) {
	if data.piles.deck.len == 0 {
		let s = data.piles.placed.cards.split(1);
		data.piles.placed.cards = s[0];
		data.piles.deck = shuffle(s[1]);
	}
	let c = data.piles.deck.cards.pop();
	data.player_piles[current_player.val].deck.cards.push(c);
	return data;
}