import {q, ElemJS, ejs} from "./basic.js"
import {store} from "./store/store.js"
import {Timeline} from "./Timeline.js"
import * as lsm from "./lsm.js"

function resolveMxc(url, size, method) {
	const [server, id] = url.match(/^mxc:\/\/([^/]+)\/(.*)/).slice(1)
	if (size && method) {
		return `${lsm.get("domain")}/_matrix/media/r0/thumbnail/${server}/${id}?width=${size}&height=${size}&method=${method}`
	} else {
		return `${lsm.get("domain")}/_matrix/media/r0/download/${server}/${id}`
	}
}

class ActiveGroupMarker extends ElemJS {
	constructor() {
		super(q("#c-group-marker"))
		store.activeGroup.subscribe("changeSelf", this.render.bind(this))
	}

	render() {
		if (store.activeGroup.exists()) {
			const group = store.activeGroup.value()
			this.style("opacity", 1)
			this.style("transform", `translateY(${group.element.offsetTop}px)`)
		} else {
			this.style("opacity", 0)
		}
	}
}

const activeGroupMarker = new ActiveGroupMarker()

class Group extends ElemJS {
	constructor(key, data) {
		super("div")

		this.data = data

		this.class("c-group")
		this.child(
			(this.data.icon
			 ? ejs("img").class("c-group__icon").attribute("src", this.data.icon)
			 : ejs("div").class("c-group__icon")
			),
			ejs("div").class("c-group__name").text(this.data.name)
		)

		this.on("click", this.onClick.bind(this))

		store.activeGroup.subscribe("changeSelf", this.render.bind(this))
	}

	render() {
		const active = store.activeGroup.value() === this
		this.element.classList[active ? "add" : "remove"]("c-group--active")
	}

	onClick() {
		store.activeGroup.set(this)
	}
}

class Room extends ElemJS {
	constructor(id, data) {
		super("div")

		this.id = id
		this.data = data
		this.timeline = new Timeline()

		this.class("c-room")

		this.on("click", this.onClick.bind(this))
		store.activeRoom.subscribe("changeSelf", this.render.bind(this))

		this.render()
	}

	getName() {
		let name = this.data.state.events.find(e => e.type === "m.room.name")
		if (name) {
			name = name.content.name
		} else {
			const users = this.data.summary["m.heroes"]
			const usernames = users.map(u => (u.match(/^@([^:]+):/) || [])[1] || u)
			name = usernames.join(", ")
		}
		return name
	}

	getIcon() {
		const avatar = this.data.state.events.find(e => e.type === "m.room.avatar")
		if (avatar) {
			return resolveMxc(avatar.content.url || avatar.content.avatar_url, 32, "crop")
		} else {
			return null
		}
	}

	isDirect() {
		return store.directs.has(this.id)
	}

	getGroup() {
		return this.isDirect() ? store.groups.get("directs").value() : store.groups.get("channels").value()
	}

	onClick() {
		store.activeRoom.set(this)
	}

	render() {
		this.clearChildren()
		// data
		const icon = this.getIcon()
		if (icon) {
			this.child(ejs("img").class("c-room__icon").attribute("src", icon))
		} else {
			this.child(ejs("div").class("c-room__icon", "c-room__icon--no-icon"))
		}
		this.child(ejs("div").class("c-room__name").text(this.getName()))
		// active
		const active = store.activeRoom.value() === this
		this.element.classList[active ? "add" : "remove"]("c-room--active")
	}
}

class Rooms extends ElemJS {
	constructor() {
		super(q("#c-rooms"))

		this.roomData = []
		this.rooms = []

		store.rooms.subscribe("askAdd", this.askAdd.bind(this))
		store.rooms.subscribe("addItem", this.addItem.bind(this))
		// store.rooms.subscribe("changeItem", this.render.bind(this))
		store.activeGroup.subscribe("changeSelf", this.render.bind(this))
		store.directs.subscribe("changeItem", this.render.bind(this))

		this.render()
	}

	askAdd(event, {key, data}) {
		const room = new Room(key, data)
		store.rooms.addEnd(key, room)
	}

	addItem(event, key) {
		const room = store.rooms.get(key).value()
		if (room.getGroup() === store.activeGroup.value()) {
			this.child(room)
		}
	}

	render() {
		this.clearChildren()
		let first = null
		// set room list
		store.rooms.forEach((id, room) => {
			if (room.value().getGroup() === store.activeGroup.value()) {
				if (!first) first = room.value()
				this.child(room.value())
			}
		})
		// if needed, change the active room to be an item in the room list
		if (!store.activeRoom.exists() || store.activeRoom.value().getGroup() !== store.activeGroup.value()) {
			if (first) {
				store.activeRoom.set(first)
			} else {
				store.activeRoom.delete()
			}
		}
	}
}
const rooms = new Rooms()

class Groups extends ElemJS {
	constructor() {
		super(q("#c-groups-list"))

		store.groups.subscribe("askAdd", this.askAdd.bind(this))
		store.groups.subscribe("addItem", this.addItem.bind(this))
	}

	askAdd(event, {key, data}) {
		const group = new Group(key, data)
		store.groups.addEnd(key, group)
	}

	addItem(event, key) {
		this.child(store.groups.get(key).value())
	}
}
const groups = new Groups()


;[
	{
		id: "directs",
		name: "Directs",
		icon: "/static/directs.svg"
	},
	{
		id: "channels",
		name: "Channels",
		icon: "/static/channels.svg"
	}/*,
	{
		id: "123",
		name: "Fediverse Drama Museum"
	},
	{
		id: "456",
		name: "Epicord"
	},
	{
		id: "789",
		name: "Invidious"
	}*/
].forEach(data => store.groups.askAdd(data.id, data))

/*
;[
	{id: "001", name: "riley", group: store.groups.get("directs").value()},
	{id: "002", name: "BadAtNames", group: store.groups.get("directs").value()},
	{id: "003", name: "lynxano", group: store.groups.get("directs").value()},
	{id: "004", name: "quarky", group: store.groups.get("directs").value()},
	{id: "005", name: "lepton", group: store.groups.get("directs").value()},
	{id: "006", name: "ash", group: store.groups.get("directs").value()},
	{id: "007", name: "mewmew", group: store.groups.get("directs").value()},
	{id: "008", name: "Toniob", group: store.groups.get("directs").value()},
	{id: "009", name: "cockandball", group: store.groups.get("directs").value()},
	{id: "010", name: "Carbon brainstorming", group: store.groups.get("channels").value()},
	{id: "011", name: "Bibliogram", group: store.groups.get("channels").value()},
	{id: "012", name: "Monsters Inc Debate Hall", group: store.groups.get("channels").value()},
	{id: "013", name: "DRB clan", group: store.groups.get("channels").value()},
	{id: "014", name: "mettaton simp zone", group: store.groups.get("channels").value()},
	{id: "015", name: "witches", group: store.groups.get("123").value()},
	{id: "016", name: "snouts", group: store.groups.get("123").value()},
	{id: "017", name: "monads", group: store.groups.get("123").value()},
	{id: "018", name: "radical", group: store.groups.get("123").value()},
	{id: "019", name: "blobcat", group: store.groups.get("123").value()},
	{id: "020", name: "main", group: store.groups.get("456").value()},
	{id: "021", name: "gaming", group: store.groups.get("456").value()},
	{id: "022", name: "inhalers", group: store.groups.get("456").value()},
	{id: "023", name: "minecraft", group: store.groups.get("456").value()},
	{id: "024", name: "osu", group: store.groups.get("456").value()},
	{id: "025", name: "covid", group: store.groups.get("456").value()}
].forEach(data => store.rooms.askAdd(data.id, data))
*/

store.activeGroup.set(store.groups.get("directs").value())