"use strict";

const THE_13_COLONIES = [ 'NH', 'NY', 'MA', 'CT', 'RI', 'PA', 'NJ', 'MD', 'DE', 'VA', 'NC', 'SC', 'GA' ];
const ALL_COLONIES = THE_13_COLONIES.concat(['CA']);
const AMERICAN_GENERALS = [ "Arnold", "Gates", "Greene", "Lafayette", "Lee", "Lincoln", "Washington", ];
const CONTINENTAL_CONGRESS_DISPERSED = "Continental Congress Dispersed";
const BRITISH = "British";
const AMERICAN = "American";
const BLOCKADE_ZONES = [ "Sea1","Sea2","Sea3","Sea4","Sea5","Sea6","Sea7" ];

let ui = {
	cards: {},
	spaces: {},
	generals: {},
	control: {},
	blockade: {},
	cu: [],
};

function on_log(text) {
	let p = document.createElement("div");
	text = text.replace(/&/g, "&");
	text = text.replace(/</g, "&lt;");
	text = text.replace(/>/g, "&gt;");

	text = text.replace(/\[(\d+)([^\]]*)\]/, '<span class="card_tip" data-card="$1">$1$2</span>');

	if (text.match(/^\.h1 /)) {
		p.className = 'h1';
		text = text.substring(4);
	} else if (text.match(/^\.h2.american /)) {
		p.className = 'h2 american';
		text = text.substring(13);
	} else if (text.match(/^\.h2.british /)) {
		p.className = 'h2 british';
		text = text.substring(12);
	}

	p.innerHTML = text;
	return p;
}

function clearList(container) {
	while (container.firstChild)
		container.removeChild(container.firstChild);
}

function onHoverCard(X) {
	let c = CARDS[X.id.split("+")[1]];
	document.getElementById("status").textContent = JSON.stringify(c);
}

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

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

function clear_group(name) {
	let container = document.getElementById(name);
	while (container.firstChild)
		container.removeChild(container.firstChild);
}

function build_marker(container, id, x, y, w, h, classList) {
	let e = document.createElement("div");
	e.foo = { w:w, h:h };
	e.classList.add("marker");
	for (let c of classList)
		e.classList.add(c);
	e.setAttribute("id", id);
	e.style.left = ((x - w/2)|0) + "px";
	e.style.top = ((y - h/2)|0) + "px";
	document.getElementById(container).appendChild(e);
	return e;
}

function update_marker(e, space) {
	let box = SPACES[space] || BOXES[space];
	e.style.left = ((box.x - e.foo.w/2)|0) + "px";
	e.style.top = ((box.y - e.foo.h/2)|0) + "px";
}

function update_marker_xy(e, x, y) {
	e.style.left = ((x - e.foo.w/2)|0) + "px";
	e.style.top = ((y - e.foo.h/2)|0) + "px";
}

function build_map() {
	function buildNode(type, x, y, colony) {
		let e = document.createElement("div");
		let w, h;
		e.classList.add("space");
		e.classList.add(type);
		if (colony && colony != 'SEA')
			e.classList.add("colony_" + colony);
		if (type === 'regular-space') {
			w = 66;
			h = 66;
		} else if (type === 'winter-quarters') {
			w = 66;
			h = 66;
		} else if (type === 'fortified-port') {
			w = 54;
			h = 54;
		} else if (type === 'blockade') {
			w = 96;
			h = 80;
		} else {
			w = 60;
			h = 60;
		}
		let b = 7;
		w -= 2;
		h -= 2;
		e.style.left = (x - w/2 - b) + "px";
		e.style.top = (y - h/2 - b) + "px";
		e.style.width = (w) + "px";
		e.style.height = (h) + "px";
		return e;
	}

	for (let name in SPACES) {
		let space = SPACES[name];
		if (space.colony != null) {
			let e = buildNode(space.type, space.x, space.y, SPACES[name].colony);
			e.setAttribute("id", name);
			e.addEventListener("mouseenter", onFocusNode);
			e.addEventListener("mouseleave", onBlurNode);
			e.addEventListener("click", on_space);
			ui.spaces[name] = e;
			document.getElementById("spaces").appendChild(e);
			build_marker("pc", name+"-pc", space.x, space.y, 67, 58.5, ["pc"]);
		}
	}

	for (let zone of BLOCKADE_ZONES) {
		let e = buildNode("blockade", BOXES[zone].x, BOXES[zone].y, "SEA");
		e.setAttribute("id", zone);
		e.addEventListener("click", on_space);
		document.getElementById("spaces").appendChild(e);
		ui.blockade[zone] = e;
	}

	ui.turn = build_marker("markers", "GameTurn",
		BOXES["Game Turn 1775"].x, BOXES["Game Turn 1775"].y, 56.5, 56.5,
		["turn"]);

	ui.french_alliance = build_marker("markers", "FrenchAlliance",
		BOXES["French Alliance Track 0"].x, BOXES["French Alliance Track 0"].y, 56.5, 56.5,
		["french-alliance"]);

	ui.french_navy = build_marker("markers", "FrenchNavy",
		BOXES["French Reinforcements"].x-130/2-10, BOXES["French Reinforcements"].y-32, 126/2, 252/2,
		["french-navy"]);

	ui.congress = build_marker("markers", "Congress",
		SPACES["Philadelphia"].x, SPACES["Philadelphia"].y, 113/2, 113/2,
		["congress"]);

	for (let c in COLONIES) {
		ui.control[c] = build_marker("markers", "control_" + c,
			BOXES[c].x, BOXES[c].y, 38+8, 38+8,
			["control"]);
	}

	for (let c = 1; c <= 110; ++c) {
		ui.cards[c] = document.getElementById("card+"+c);
		ui.cards[c].addEventListener("click", on_card);
	}

	for (let g in GENERALS) {
		let color = GENERALS[g].owner.toLowerCase();
		ui.generals[g] = build_marker("generals", g,
			0,
			0,
			126/2,
			252/2,
			["general", color, g, "offmap"]);
		ui.generals[g].addEventListener("click", on_general);
	}
}

function update_units() {
	const unitW = 130/2;
	const unitH = 263/2;
	const generalX = -22;
	const generalY = 22;
	const cuX = 20;
	const cuY = 10;

	update_marker(ui.turn, "Game Turn " + view.year);
	if (view.regulars)
		ui.turn.classList.remove("no-regulars");
	else
		ui.turn.classList.add("no-regulars");

	update_marker(ui.congress, view.congress);

	update_marker(ui.french_alliance, "French Alliance Track " + view.french_alliance);
	if (view.european_war)
		ui.french_alliance.classList.add("european-war");
	else
		ui.french_alliance.classList.remove("european-war");

	if (view.french_navy == "French Reinforcements") {
		let x = BOXES["French Reinforcements"].x-130/2-10;
		let y = BOXES["French Reinforcements"].y-32;
		let w = 126/2;
		let h = 252/2;
		ui.french_navy.style.left = ((x-w/2)|0) + "px";
		ui.french_navy.style.top = ((y-h/2)|0) + "px";
	} else {
		update_marker(ui.french_navy, view.french_navy);
	}

	for (let space in SPACES) {
		let space_pc = view.pc[space];
		let e = document.getElementById(space+"-pc");
		if (e) {
			if (space_pc === BRITISH) {
				e.classList.remove("american");
				e.classList.add("british");
			} else if (space_pc === AMERICAN) {
				e.classList.add("american");
				e.classList.remove("british");
			} else {
				e.classList.remove("american");
				e.classList.remove("british");
			}
		}
	}

	for (let c in COLONIES) {
		let control = 0;
		for (let space of COLONIES[c]) {
			if (view.pc[space] == BRITISH)
				--control;
			else if (view.pc[space] == AMERICAN)
				++control;
		}
		if (control < 0)
			ui.control[c].className = "marker control british";
		else if (control > 0)
			ui.control[c].className = "marker control american";
		else
			ui.control[c].className = "marker control";
	}

	let offset = {};
	for (let g in GENERALS) {
		let e = ui.generals[g];
		let unit = view.generals[g];
		let space = SPACES[unit.location] || BOXES[unit.location];
		if (space) {
			let o = (offset[space.name]|0);
			update_marker_xy(e, space.x + o * generalX, space.y + o * generalY - 32);
			e.classList.remove("offmap");
			offset[space.name] = ++o;
		} else {
			e.classList.add("offmap");
		}
		if (view.who == g)
			e.classList.add("selected");
		else
			e.classList.remove("selected");
	}

	// TODO: reuse CU elements
	offset = {};
	clear_group("cu");
	for (let i = 0; i < view.cu.length; ++i) {
		let cu = view.cu[i];
		let space = SPACES[cu.location] || BOXES[cu.location];
		let o = (offset[space.name]|0);
		let x = space.x + o * cuX;
		let y = space.y + o * cuY;
		let e = build_marker("cu", "cu"+i, x, y, 122/2, 122/2, ["cu", cu.owner.toLowerCase()]);
		e.textContent = cu.count;
		offset[space.name] = ++o;
	}
}

build_map();

function player_info(player, nc, nq) {
	let info = ""
	if (player == AMERICAN) {
		if (view.pennsylvania_and_new_jersey_line_mutinies || view.congress == CONTINENTAL_CONGRESS_DISPERSED)
			info += "\u{1f6ab} "
	}
	if (nq > 0)
		info += nq + "\u{231b} "
	info += nc + "\u{1f3b4}"
	return info;
}

function on_update() {
	let e;

	roles.American.stat.textContent = player_info(AMERICAN, view.a_cards, view.a_queue);
	roles.British.stat.textContent = player_info(BRITISH, view.b_cards, view.b_queue);

	if (!view.last_played)
		document.getElementById("last_played").className = "card show card_back";
	else
		document.getElementById("last_played").className = "card show card_" + view.last_played;

	action_button("pickup_british_cu", "Pick up British CU");
	action_button("pickup_american_cu", "Pick up American CU");
	action_button("pickup_french_cu", "Pick up French CU");
	action_button("drop_british_cu", "Drop off British CU");
	action_button("drop_american_cu", "Drop off American CU");
	action_button("drop_french_cu", "Drop off French CU");
	action_button("british_first", "British");
	action_button("american_first", "American");
	action_button("surrender", "Surrender");
	action_button("pass", "Next");
	action_button("undo", "Undo");

	e = document.getElementById("war_ends");
	e.classList.remove("year_1779");
	e.classList.remove("year_1780");
	e.classList.remove("year_1781");
	e.classList.remove("year_1782");
	e.classList.remove("year_1783");
	if (view.war_ends)
		e.classList.add("year_" + view.war_ends);

	e = document.getElementById("played_british_reinforcements");
	e.classList.remove("ops_1");
	e.classList.remove("ops_2");
	e.classList.remove("ops_3");
	e.classList.add("ops_" + view.played_british_reinforcements);

	e = document.getElementById("played_american_reinforcements_1");
	e.classList.remove("ops_1");
	e.classList.remove("ops_2");
	e.classList.remove("ops_3");
	if (view.played_american_reinforcements.length >= 1)
		e.classList.add("ops_" + view.played_american_reinforcements[0]);

	e = document.getElementById("played_american_reinforcements_2");
	e.classList.remove("ops_1");
	e.classList.remove("ops_2");
	e.classList.remove("ops_3");
	if (view.played_american_reinforcements.length >= 2)
		e.classList.add("ops_" + view.played_american_reinforcements[1]);

	let cards = view.hand;
	for (let c = 1; c <= 110; ++c) {
		ui.cards[c].classList.remove('enabled');
		if (cards && cards.includes(c))
			ui.cards[c].classList.add('show');
		else
			ui.cards[c].classList.remove('show');
	}

	for (let space in SPACES)
		ui.spaces[space].classList.remove('enabled');

	for (let general in GENERALS)
		ui.generals[general].classList.remove('enabled');

	for (let zone of BLOCKADE_ZONES)
		ui.blockade[zone].classList.remove('enabled');

	update_units();

	if (player != view.active)
		return;

	for (let action of Object.keys(view.actions)) {
		let args = view.actions[action];
		switch (action) {
		case 'card_play_event':
		case 'card_discard_event':
		case 'card_campaign':
		case 'card_ops_general':
		case 'card_ops_pc':
		case 'card_ops_reinforcements':
		case 'card_ops_queue':
		case 'card_battle_play':
		case 'card_battle_discard':
		case 'exchange_for_discard':
			for (let card of args)
				ui.cards[card].classList.add('enabled');
			break;
		case 'remove_cu':
			// TODO: target CU not space?
		case 'move':
		case 'sea_move':
		case 'place_continental_congress':
		case 'place_reinforcements':
		case 'place_american_pc':
		case 'place_british_pc':
		case 'remove_pc':
		case 'flip_pc':
			for (let space of args)
				ui.spaces[space].classList.add('enabled');
			break;
		case 'select_general':
			for (let general of args)
				ui.generals[general].classList.add('enabled');
			break;
		case 'place_navy':
			for (let zone of args)
				ui.blockade[zone].classList.add('enabled');
		}
	}
}

function is_action(action, card) {
	return view.actions && view.actions[action] && view.actions[action].includes(card)
}

function show_popup_menu(evt, menu_id, target_id, title) {
	let menu = document.getElementById(menu_id)

	let show = false
	for (let item of menu.querySelectorAll("li")) {
		let action = item.dataset.action
		if (action) {
			if (is_action(action, target_id)) {
				show = true
				item.classList.add("action")
				item.classList.remove("disabled")
				item.onclick = function () {
					send_action(action, target_id)
					hide_popup_menu()
					evt.stopPropagation()
				}
			} else {
				item.classList.remove("action")
				item.classList.add("disabled")
				item.onclick = null
			}
		}
	}

	if (show) {
		menu.onmouseleave = hide_popup_menu
		menu.style.display = "block"
		if (title) {
			let item = menu.querySelector("li.title")
			if (item) {
				item.onclick = hide_popup_menu
				item.textContent = title
			}
		}

		let w = menu.clientWidth
		let h = menu.clientHeight
		let x = Math.max(5, Math.min(evt.clientX - w / 2, window.innerWidth - w - 5))
		let y = Math.max(5, Math.min(evt.clientY - 12, window.innerHeight - h - 40))
		menu.style.left = x + "px"
		menu.style.top = y + "px"

		evt.stopPropagation()
	} else {
		menu.style.display = "none"
	}
}

function hide_popup_menu() {
	document.getElementById("popup").style.display = "none"
}

function on_card(evt) {
	if (view.actions) {
		let c = evt.target.id.split("+")[1] | 0;
		show_popup_menu(evt, "popup", c, CARDS[c].title)
	}
}

function get_action_from_arg(x) {
	for (let action of Object.keys(view.actions)) {
		let args = view.actions[action];
		if (Array.isArray(args) && args.includes(x))
			return action;
	}
	return null;
}

function on_space(evt) {
	if (view.actions) {
		let space = evt.target.id;
		let action = get_action_from_arg(space);
		if (action)
			send_action(action, space);
	}
}

function on_general(evt) {
	if (view.actions) {
		let general = evt.target.id;
		let action = get_action_from_arg(general);
		if (action)
			send_action(action, general);
	}
}

function toggle_markers() {
	document.querySelector("#map").classList.toggle("hide_markers");
}