"use strict";

const SEASON_X = [ 893, 978, 1064, 1149 ];
const YEAR_X = { 1801: 175, 1802: 294, 1803: 413, 1804: 532, 1805: 652, 1806: 771 };
const YEAR_Y = 728;

function get_piece_id(name) {
	return PIECES.indexOf(name);
}

function get_space_id(name) {
	return SPACES.indexOf(name);
}

function create_piece_list(n, name) {
	let list = [];
	for (let i = 1; i <= n; ++i)
		list.push(get_piece_id(name + i));
	return list;
}

const US_FRIGATES = create_piece_list(8, 'us_frigate_');
const TR_FRIGATES = create_piece_list(2, 'tr_frigate_');
const SE_FRIGATES = create_piece_list(2, 'se_frigate_');
const US_GUNBOATS = create_piece_list(3, 'us_gunboat_');
const TR_CORSAIRS = create_piece_list(9, 'tr_corsair_');
const AL_CORSAIRS = create_piece_list(9, 'al_corsair_');
const US_MARINES = create_piece_list(4, 'us_marine_');
const AR_INFANTRY = create_piece_list(10, 'ar_infantry_');
const TR_INFANTRY = create_piece_list(20, 'tr_infantry_');

const FRIGATES = US_FRIGATES.concat(TR_FRIGATES);
const CORSAIRS = TR_CORSAIRS.concat(AL_CORSAIRS);

const ALEXANDRIA = get_space_id("Alexandria");
const ALGIERS = get_space_id("Algiers");
const ALGIERS_PATROL_ZONE = get_space_id("Algiers Patrol Zone");
const BENGHAZI = get_space_id("Benghazi");
const DERNE = get_space_id("Derne");
const GIBRALTAR = get_space_id("Gibraltar");
const GIBRALTAR_PATROL_ZONE = get_space_id("Gibraltar Patrol Zone");
const MALTA = get_space_id("Malta");
const TANGIER = get_space_id("Tangier");
const TANGIER_PATROL_ZONE = get_space_id("Tangier Patrol Zone");
const TRIPOLI = get_space_id("Tripoli");
const TRIPOLI_PATROL_ZONE = get_space_id("Tripoli Patrol Zone");
const TUNIS = get_space_id("Tunis");
const TUNIS_PATROL_ZONE = get_space_id("Tunis Patrol Zone");
const UNITED_STATES_SUPPLY = get_space_id("United States Supply");
const TRIPOLITAN_SUPPLY = get_space_id("Tripolitan Supply");
const TRACK_1801 = get_space_id("1801");
const TRACK_1802 = get_space_id("1802");
const TRACK_1803 = get_space_id("1803");
const TRACK_1804 = get_space_id("1804");
const TRACK_1805 = get_space_id("1805");
const TRACK_1806 = get_space_id("1806");

let map = document.getElementById("svgmap");

let ui = {
	spaces: {},
	pieces: {},
	gold: [],
	cards: {},
}

function on_focus_space(evt) {
	let where = SPACES[evt.target.space];
	document.getElementById("status").textContent = where;
}

function on_focus_piece(evt) {
	let who = PIECES[evt.target.piece];
	document.getElementById("status").textContent = who;
}

function on_blur(evt) {
	document.getElementById("status").textContent = "";
}

function on_pass() { if (game.actions) { send_action('pass', null); } }
function on_undo() { if (game.actions) { send_action('undo', null); } }
function on_next() { if (game.actions) { send_action('next', null); } }

function on_click_space(evt) { send_action('space', evt.target.space); }
function on_click_piece(evt) { send_action('piece', evt.target.piece); }

function build_map() {
	for (let i = 0; i < SPACES.length; ++i) {
		let space = SPACES[i];
		let id = space.replace(/ /g, "_").toLowerCase();
		let e = map.getElementById(id);
		if (e) {
			e.addEventListener("mouseenter", on_focus_space);
			e.addEventListener("mouseleave", on_blur);
			e.addEventListener("click", on_click_space);
			e.space = i;
			ui.spaces[i] = e;
		}
	}
	for (let i = 0; i < PIECES.length; ++i) {
		let piece = PIECES[i];
		let e = document.getElementById(piece);
		if (e) {
			e.addEventListener("mouseenter", on_focus_piece);
			e.addEventListener("mouseleave", on_blur);
			e.addEventListener("click", on_click_piece);
			e.piece = i;
			ui.pieces[i] = e;
		}
	}
	for (let i = 1; i <= 12; ++i) {
		ui.gold.push(document.getElementById("gold_" + i));
	}
	for (let i = 1; i <= 27; ++i) {
		let e = ui.cards[i] = document.getElementById("us_card_"+i);
		e.addEventListener("click", on_click_card);
		e.card = i;
	}
	for (let i = 28; i <= 54; ++i) {
		let e = ui.cards[i] = document.getElementById("tr_card_"+(i-27));
		e.addEventListener("click", on_click_card);
		e.card = i;
	}
}

const CARD_ACTIONS = [
	'card_build_corsair',
	'card_build_gunboat',
	'card_event',
	'card_move_frigates',
	'card_pirate_raid',
	'card_take',
	'discard',
];

function is_card_enabled(c) {
	if (game.actions)
		for (let a of CARD_ACTIONS)
			if (game.actions[a] && game.actions[a].includes(c))
				return true;
	return false;
}

function update_card(c, show) {
	if (is_card_enabled(c))
		ui.cards[c].classList.add('enabled');
	else
		ui.cards[c].classList.remove('enabled');
	if (show)
		ui.cards[c].classList.add('show');
	else
		ui.cards[c].classList.remove('show');
}

function update_cards() {
	for (let i = 1; i <= 3; ++i) {
		update_card(i, game.core.includes(i));
		update_card(i+27, game.core.includes(i+27));
	}
	for (let i = 4; i <= 27; ++i) {
		update_card(i, game.hand.includes(i));
		update_card(i+27, game.hand.includes(i+27));
	}
}

/* MAP AND PIECE LAYOUT */

function tr_info() {
	let text = "";
	text += "Hand: " + game.tr.hand + "\n";
	text += "Draw: " + game.tr.draw + "\n";
	text += "Discard: " + game.tr.discard + "\n";
	return text;
}

function us_info() {
	let text = "";
	text += "Hand: " + game.us.hand + "\n";
	text += "Draw: " + game.us.draw + "\n";
	text += "Discard: " + game.us.discard + "\n";
	return text;
}

function on_update() {
	show_action_button("#button_pass", "pass");
	show_action_button("#button_next", "next");
	show_action_button("#button_undo", "undo");

	document.getElementById("tr_score").textContent = game.tr.score;
	document.getElementById("us_score").textContent = game.us.score;
	document.getElementById("tr_info").textContent = tr_info();
	document.getElementById("us_info").textContent = us_info();

	if (game.card == undefined)
		document.getElementById("active_card").className = "card show blank";
	else if (game.card == "United States")
		document.getElementById("active_card").className = "card show us_card_back";
	else if (game.card == "Tripolitania")
		document.getElementById("active_card").className = "card show tr_card_back";
	else if (game.card < 27)
		document.getElementById("active_card").className = "card show us_card_" + game.card;
	else
		document.getElementById("active_card").className = "card show tr_card_" + (game.card-27);

	update_year_marker(game.year);
	update_season_marker(game.season);
	update_gold();
	update_pieces();
	update_cards();
	update_spaces();
}

function update_year_marker(year) {
	let e = map.getElementById("year");
	e.setAttribute("cx", YEAR_X[year]);
	e.setAttribute("cy", YEAR_Y);
}

function update_season_marker(season) {
	let e = map.getElementById("season");
	e.setAttribute("cx", SEASON_X[season]);
	e.setAttribute("cy", YEAR_Y);
}

function set_piece_xy(p, x, y) {
	let e = ui.pieces[p];
	e.style.left = Math.round(x - e.offsetWidth/2) + "px";
	e.style.top = Math.round(y - e.offsetHeight/2) + "px";
}

function set_gold_xy(i, x, y) {
	let e = ui.gold[i];
	e.style.left = Math.round(x - e.offsetWidth/2) + "px";
	e.style.top = Math.round(y - e.offsetHeight/2) + "px";
}

function layout_space(location, s, x0, y0, size) {
	const LOUT_W = { se_f:46, us_f:46, tr_f:46, us_g:36, tr_c:36, al_c:36, us_m:28, ar_i:28, tr_i:28 };
	const LOUT_H = { se_f:32, us_f:32, tr_f:32, us_g:28, tr_c:28, al_c:28, us_m:28, ar_i:28, tr_i:28 };
	function lout(row, prefix) {
		row.w = LOUT_W[prefix];
		row.h = LOUT_H[prefix];
		return row;
	}

	let pps = { se_f:[], us_f:[], us_g:[], us_m:[], ar_i:[], tr_f:[], tr_c:[], al_c:[], tr_i:[] };
	for (let p = 0; p < PIECES.length; ++p) {
		if (location[p] == s) {
			let prefix = PIECES[p].substring(0,4);
			if (prefix == 'se_f') prefix = 'us_f';
			if (prefix == 'al_c') prefix = 'tr_c';
			pps[prefix].push(p);
		}
	}

	let rows = [];
	for (let prefix in pps) {
		let row = pps[prefix];
		if (row.length > 0) {
			let wrap = (prefix == 'ar_i' || prefix == 'tr_i') ? size+1 : size;
			if (row.length > wrap*2) {
				rows.push(lout(row.slice(0,wrap), prefix))
				rows.push(lout(row.slice(wrap,wrap*2), prefix))
				rows.push(lout(row.slice(wrap*2), prefix))
			} else if (row.length > wrap) {
				rows.push(lout(row.slice(0,wrap), prefix))
				rows.push(lout(row.slice(wrap), prefix))
			} else {
				rows.push(lout(row, prefix));
			}
		}
	}

	let h = rows.reduce((acc, row) => acc + row.h, 0);
	let y = y0 - h / 2;
	for (let r = 0; r < rows.length; ++r) {
		let row = rows[r];
		let w = row.w * row.length;
		let x = x0 - w / 2 + row.w/2;
		for (let c = 0; c < row.length; ++c) {
			let p = row[c];
			set_piece_xy(p, x + c * row.w, y + row.h/2);
		}
		y += row.h;
	}
}

function update_pieces() {
	layout_space(game.location, UNITED_STATES_SUPPLY, 1933, 180, 6);
	layout_space(game.location, TRIPOLITAN_SUPPLY, 2195, 180, 6);

	layout_space(game.location, TRACK_1801, YEAR_X[1801], 625, 2);
	layout_space(game.location, TRACK_1802, YEAR_X[1802], 625, 2);
	layout_space(game.location, TRACK_1803, YEAR_X[1803], 625, 2);
	layout_space(game.location, TRACK_1804, YEAR_X[1804], 625, 2);
	layout_space(game.location, TRACK_1805, YEAR_X[1805], 625, 2);
	layout_space(game.location, TRACK_1806, YEAR_X[1806], 625, 2);

	layout_space(game.location, ALEXANDRIA, 2335, 454, 3);
	layout_space(game.location, ALGIERS, 883, 318, 3);
	layout_space(game.location, BENGHAZI, 1877, 583, 3);
	layout_space(game.location, DERNE, 2030, 437, 3);
	layout_space(game.location, GIBRALTAR, 374, 216, 3);
	layout_space(game.location, MALTA, 1592, 189, 3);
	layout_space(game.location, TANGIER, 296, 426, 3);
	layout_space(game.location, TRIPOLI, 1416, 604, 5);
	layout_space(game.location, TUNIS, 1232, 278, 3);

	layout_space(game.location, ALGIERS_PATROL_ZONE, 875, 170, 3);
	layout_space(game.location, GIBRALTAR_PATROL_ZONE, 560, 245, 3);
	layout_space(game.location, TANGIER_PATROL_ZONE, 125, 410, 3);
	layout_space(game.location, TRIPOLI_PATROL_ZONE, 1575, 420, 5);
	layout_space(game.location, TUNIS_PATROL_ZONE, 1300, 130, 3);

	for (let p of FRIGATES) {
		if (game.damaged.includes(p))
			ui.pieces[p].classList.add("damaged");
		else
			ui.pieces[p].classList.remove("damaged");
	}

	for (let p = 0; p < PIECES.length; ++p) {
		if (game.actions && game.actions.piece && game.actions.piece.includes(p))
			ui.pieces[p].classList.add("highlight");
		else
			ui.pieces[p].classList.remove("highlight");
	}
}

function update_gold() {
	let split = 12 - game.tr.gold;
	let x, y;
	x = 690;
	y = 50;
	for (let i = 0; i < split; ++i) {
		set_gold_xy(i, x, y);
		x += 50;
	}
	x = 2250;
	y = 750;
	for (let i = 11; i >= split; --i) {
		set_gold_xy(i, x, y);
		x -= 50;
	}
}

function update_spaces() {
	for (let space in ui.spaces) {
		ui.spaces[space].classList.remove('highlight');
		ui.spaces[space].classList.remove('where');
	}
	if (game.where != null) {
		ui.spaces[game.where].classList.add('where');
	}
	if (game.actions && game.actions.space) {
		for (let space of game.actions.space) {
			ui.spaces[space].classList.add('highlight');
		}
	}
}

/* CARD ACTION MENU */

let current_popup_card = 0;

function show_popup_menu(evt, list) {
	document.querySelectorAll("#popup div").forEach(e => e.classList.remove('enabled'));
	for (let item of list) {
		let e = document.getElementById("menu_" + item);
		e.classList.add('enabled');
	}
	let popup = document.getElementById("popup");
	popup.style.display = 'block';
	popup.style.left = (evt.clientX-50) + "px";
	popup.style.top = (evt.clientY-12) + "px";
	ui.cards[current_popup_card].classList.add("selected");
}

function hide_popup_menu() {
	let popup = document.getElementById("popup");
	popup.style.display = 'none';
	if (current_popup_card) {
		ui.cards[current_popup_card].classList.remove("selected");
		current_popup_card = 0;
	}
}

function on_card_event() {
	send_action('card_event', current_popup_card);
	hide_popup_menu();
}

function on_card_take() {
	send_action('card_take', current_popup_card);
	hide_popup_menu();
}

function on_card_move_frigates() {
	send_action('card_move_frigates', current_popup_card);
	hide_popup_menu();
}

function on_card_pirate_raid() {
	send_action('card_pirate_raid', current_popup_card);
	hide_popup_menu();
}

function on_card_build_gunboat() {
	send_action('card_build_gunboat', current_popup_card);
	hide_popup_menu();
}

function on_card_build_corsair() {
	send_action('card_build_corsair', current_popup_card);
	hide_popup_menu();
}

function is_card_action(action, card) {
	return game.actions && game.actions[action] && game.actions[action].includes(card);
}

function on_click_card(evt) {
	if (game.actions) {
		let card = evt.target.card;
		if (is_card_action('discard', card)) {
			send_action('discard', card);
		} else {
			let menu = [];
			if (is_card_action('card_event', card)) menu.push('card_event');
			if (is_card_action('card_take', card)) menu.push('card_take');
			if (is_card_action('card_move_frigates', card)) menu.push('card_move_frigates');
			if (is_card_action('card_pirate_raid', card)) menu.push('card_pirate_raid');
			if (is_card_action('card_build_gunboat', card)) menu.push('card_build_gunboat');
			if (is_card_action('card_build_corsair', card)) menu.push('card_build_corsair');
			if (menu.length > 0) {
				current_popup_card = card;
				show_popup_menu(evt, menu);
			}
		}
	}
}

/* INITIALIZE CLIENT */

build_map();
scroll_with_middle_mouse(".grid_center");
init_map_zoom();
init_client([ "Tripolitania", "United States" ]);