"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")
}