'use strict';

/* global dijit, __, App, dojo, __csrf_token */
/* eslint-disable no-new */

/* exported $ */
function $(id) {
	console.warn("FIXME: please use App.byId() or document.getElementById() instead of $():", id);
	return document.getElementById(id);
}

/* exported $$ */
function $$(query) {
	console.warn("FIXME: please use App.findAll() or document.querySelectorAll() instead of $$():", query);
	return document.querySelectorAll(query);
}


Element.prototype.hasClassName = function(className) {
	return dojo.hasClass(this, className);
};

Element.prototype.addClassName = function(className) {
	return dojo.addClass(this, className);
};

Element.prototype.removeClassName = function(className) {
	return dojo.removeClass(this, className);
};

Element.prototype.toggleClassName = function(className) {
	if (this.hasClassName(className))
		return this.removeClassName(className);
	else
		return this.addClassName(className);
};


Element.prototype.setStyle = function(args) {
	Object.keys(args).forEach((k) => {
		this.style[k] = args[k];
	});
};

Element.prototype.show = function() {
	this.style.display = "";
};

Element.prototype.hide = function() {
	this.style.display = "none";
};

Element.prototype.toggle = function() {
	if (this.visible())
		this.hide();
	else
		this.show();
};

// https://gist.github.com/alirezas/c4f9f43e9fe1abba9a4824dd6fc60a55
Element.prototype.fadeOut = function() {
	this.style.opacity = 1;
	const self = this;

	(function fade() {
		if ((self.style.opacity -= 0.1) < 0) {
			self.style.display = "none";
		} else {
			requestAnimationFrame(fade);
		}
	}());
};

Element.prototype.fadeIn = function(display){
	this.style.opacity = 0;
	this.style.display = display || "block";
	const self = this;

	(function fade() {
		let val = parseFloat(self.style.opacity);
		if (!((val += 0.1) > 1)) {
			self.style.opacity = val;
			requestAnimationFrame(fade);
		}
	}());
};

Element.prototype.visible = function() {
	// TODO: should we actually check for offsetWidth/offsetHeight == 0?
	return this.style.display != "none";
}

Element.visible = function(elem) {
	if (typeof elem == "string")
		elem = document.getElementById(elem);

	return elem.visible();
}

Element.show = function(elem) {
	if (typeof elem == "string")
		elem = document.getElementById(elem);

	return elem.show();
}

Element.hide = function(elem) {
	if (typeof elem == "string")
		elem = document.getElementById(elem);

	return elem.hide();
}

Element.toggle = function(elem) {
	if (typeof elem == "string")
		elem = document.getElementById(elem);

	return elem.toggle();
}

Element.hasClassName = function (elem, className) {
	if (typeof elem == "string")
		elem = document.getElementById(elem);

	return elem.hasClassName(className);
}

Array.prototype.remove = function(s) {
	for (let i=0; i < this.length; i++) {
		if (s == this[i]) this.splice(i, 1);
	}
};

Array.prototype.uniq = function() {
	return this.filter((v, i, a) => a.indexOf(v) === i);
};

String.prototype.stripTags = function() {
	return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?(\/)?>|<\/\w+>/gi, '');
}

/* exported xhr */

const xhr = {
	post: function(url, params = {}, complete = undefined) {
		console.log("xhr.post:", params);

		return new Promise((resolve, reject) => {
			if (typeof __csrf_token != "undefined")
				params = {...params, ...{csrf_token: __csrf_token}};

			dojo.xhrPost({url: url,
				postData: dojo.objectToQuery(params),
				handleAs: "text",
				error: function(error) {
					reject(error);
				},
				load: function(data, ioargs) {
					if (complete != undefined)
						complete(data, ioargs.xhr);

					resolve(data)
				}}
			);
		});
	},
	json: function(url, params = {}, complete = undefined) {
		return new Promise((resolve, reject) =>
			this.post(url, params).then((data) => {
				let obj = null;

				try {
					obj = JSON.parse(data);
				} catch (e) {
					console.error("xhr.json", e, xhr);
					reject(e);
				}

				if (complete != undefined) complete(obj);

				resolve(obj);
			}
		));
	}
};

/* exported xhrPost */
function xhrPost(url, params = {}, complete = undefined) {
	console.log("xhrPost:", params);

	return new Promise((resolve, reject) => {
		if (typeof __csrf_token != "undefined")
			params = {...params, ...{csrf_token: __csrf_token}};

		dojo.xhrPost({url: url,
			postData: dojo.objectToQuery(params),
			handleAs: "text",
			error: function(error) {
				reject(error);
			},
			load: function(data, ioargs) {
				if (complete != undefined)
					complete(ioargs.xhr);

				resolve(ioargs.xhr)
			}});
	});
}

/* exported xhrJson */
function xhrJson(url, params = {}, complete = undefined) {
	return new Promise((resolve, reject) =>
		xhrPost(url, params).then((reply) => {
			let obj = null;

			try {
				obj = JSON.parse(reply.responseText);
			} catch (e) {
				console.error("xhrJson", e, reply);
				reject(e);
			}

			if (complete != undefined) complete(obj);

			resolve(obj);
		}));
}

/* common helpers not worthy of separate Dojo modules */

/* exported Lists */
const Lists = {
	onRowChecked: function(elem) {
		const checked = elem.domNode ? elem.attr("checked") : elem.checked;
		// account for dojo checkboxes
		elem = elem.domNode || elem;

		const row = elem.closest("li");

		if (row)
			checked ? row.addClassName("Selected") : row.removeClassName("Selected");
	},
	select: function(elemId, selected) {
		$(elemId).querySelectorAll("li").forEach((row) => {
			const checkNode = row.querySelector(".dijitCheckBox,input[type=checkbox]");
			if (checkNode) {
				const widget = dijit.getEnclosingWidget(checkNode);

				if (widget) {
					widget.attr("checked", selected);
				} else {
					checkNode.checked = selected;
				}

				this.onRowChecked(widget);
			}
		});
	},
};

/* exported Tables */
const Tables = {
	onRowChecked: function(elem) {
		// account for dojo checkboxes
		const checked = elem.domNode ? elem.attr("checked") : elem.checked;
		elem = elem.domNode || elem;

		const row = elem.closest("tr");

		if (row)
			checked ? row.addClassName("Selected") : row.removeClassName("Selected");

	},
	select: function(elemId, selected) {
		$(elemId).querySelectorAll("tr").forEach((row) => {
			const checkNode = row.querySelector(".dijitCheckBox,input[type=checkbox]");
			if (checkNode) {
				const widget = dijit.getEnclosingWidget(checkNode);

				if (widget) {
					widget.attr("checked", selected);
				} else {
					checkNode.checked = selected;
				}

				this.onRowChecked(widget);
			}
		});
	},
	getSelected: function(elemId) {
		const rv = [];

		$(elemId).querySelectorAll("tr").forEach((row) => {
			if (row.hasClassName("Selected")) {
				// either older prefix-XXX notation or separate attribute
				const rowId = row.getAttribute("data-row-id") || row.id.replace(/^[A-Z]*?-/, "");

				if (!isNaN(rowId))
					rv.push(parseInt(rowId));
			}
		});

		return rv;
	}
};

/* exported Cookie */
const Cookie = {
	set: function (name, value, lifetime) {
		const d = new Date();
		d.setTime(d.getTime() + lifetime * 1000);
		const expires = "expires=" + d.toUTCString();
		document.cookie = name + "=" + encodeURIComponent(value) + "; " + expires;
	},
	get: function (name) {
		name = name + "=";
		const ca = document.cookie.split(';');
		for (let i=0; i < ca.length; i++) {
			let c = ca[i];
			while (c.charAt(0) == ' ') c = c.substring(1);
			if (c.indexOf(name) == 0) return decodeURIComponent(c.substring(name.length, c.length));
		}
		return "";
	},
	delete: function(name) {
		const expires = "expires=Thu, 01-Jan-1970 00:00:01 GMT";
		document.cookie = name + "=; " + expires;
	}
};

/* runtime notifications */
/* exported Notify */
const Notify = {
	KIND_GENERIC: 0,
	KIND_INFO: 1,
	KIND_ERROR: 2,
	KIND_PROGRESS: 3,
	timeout: 0,
	default_timeout: 5 * 1000,
	close: function() {
		this.msg("");
	},
	msg: function(msg, keep, kind) {
		kind = kind || this.KIND_GENERIC;
		keep = keep || false;

		const notify = App.byId("notify");

		window.clearTimeout(this.timeout);

		if (!msg) {
			notify.removeClassName("visible");
			return;
		}

		let msgfmt = "<span class=\"msg\">%s</span>".replace("%s", __(msg));
		let icon = "";

		notify.className = "notify";

		console.warn('notify', msg, kind);

		switch (kind) {
			case this.KIND_INFO:
				notify.addClassName("notify_info")
				icon = "notifications";
				break;
			case this.KIND_ERROR:
				notify.addClassName("notify_error");
				icon = "error";
				break;
			case this.KIND_PROGRESS:
				notify.addClassName("notify_progress");
				icon = App.getInitParam("icon_indicator_white")
				break;
			default:
				icon = "notifications";
		}

		if (icon)
			if (icon.indexOf("data:image") != -1)
				msgfmt = "<img src=\"%s\">".replace("%s", icon) + msgfmt;
			else
				msgfmt = "<i class='material-icons icon-notify'>%s</i>".replace("%s", icon) + msgfmt;

		msgfmt += "<i class='material-icons icon-close' title=\"" +
			__("Click to close") + "\" onclick=\"Notify.close()\">close</i>";

		notify.innerHTML = msgfmt;
		notify.addClassName("visible");

		if (!keep)
			this.timeout = window.setTimeout(() => {
				notify.removeClassName("visible");
			}, this.default_timeout);

	},
	info: function(msg, keep) {
		keep = keep || false;
		this.msg(msg, keep, this.KIND_INFO);
	},
	progress: function(msg, keep) {
		keep = keep || true;
		this.msg(msg, keep, this.KIND_PROGRESS);
	},
	error: function(msg, keep) {
		keep = keep || true;
		this.msg(msg, keep, this.KIND_ERROR);
	}
};

// http://stackoverflow.com/questions/6251937/how-to-get-selecteduser-highlighted-text-in-contenteditable-element-and-replac
/* exported getSelectionText */
function getSelectionText() {
	let text = "";

	if (typeof window.getSelection != "undefined") {
		const sel = window.getSelection();
		if (sel.rangeCount) {
			const container = document.createElement("div");
			for (let i = 0, len = sel.rangeCount; i < len; ++i) {
				container.appendChild(sel.getRangeAt(i).cloneContents());
			}
			text = container.innerHTML;
		}
	} else if (typeof document.selection != "undefined") {
		if (document.selection.type == "Text") {
			text = document.selection.createRange().textText;
		}
	}

	return text.stripTags();
}