import { appendNode, assign, createElement, createText, destroyEach, detachAfter, detachNode, insertNode, noop, proto } from "svelte/shared.js";

function create_main_fragment(state, component) {
	var text, p, text_1;

	var each_block_value = state.comments;

	var each_block_iterations = [];

	for (var i = 0; i < each_block_value.length; i += 1) {
		each_block_iterations[i] = create_each_block(state, each_block_value, each_block_value[i], i, component);
	}

	return {
		create: function() {
			for (var i = 0; i < each_block_iterations.length; i += 1) {
				each_block_iterations[i].create();
			}

			text = createText("\n\n");
			p = createElement("p");
			text_1 = createText(state.foo);
		},

		mount: function(target, anchor) {
			for (var i = 0; i < each_block_iterations.length; i += 1) {
				each_block_iterations[i].mount(target, anchor);
			}

			insertNode(text, target, anchor);
			insertNode(p, target, anchor);
			appendNode(text_1, p);
		},

		update: function(changed, state) {
			var each_block_value = state.comments;

			if (changed.comments || changed.elapsed || changed.time) {
				for (var i = 0; i < each_block_value.length; i += 1) {
					if (each_block_iterations[i]) {
						each_block_iterations[i].update(changed, state, each_block_value, each_block_value[i], i);
					} else {
						each_block_iterations[i] = create_each_block(state, each_block_value, each_block_value[i], i, component);
						each_block_iterations[i].create();
						each_block_iterations[i].mount(text.parentNode, text);
					}
				}

				for (; i < each_block_iterations.length; i += 1) {
					each_block_iterations[i].unmount();
					each_block_iterations[i].destroy();
				}
				each_block_iterations.length = each_block_value.length;
			}

			if ( changed.foo ) {
				text_1.data = state.foo;
			}
		},

		unmount: function() {
			for (var i = 0; i < each_block_iterations.length; i += 1) {
				each_block_iterations[i].unmount();
			}

			detachNode(text);
			detachNode(p);
		},

		destroy: function() {
			destroyEach(each_block_iterations, false, 0);
		}
	};
}

function create_each_block(state, each_block_value, comment, i, component) {
	var div, strong, text, text_1, span, text_2_value = comment.author, text_2, text_3, text_4_value = state.elapsed(comment.time, state.time), text_4, text_5, text_6, raw_value = comment.html, raw_before;

	return {
		create: function() {
			div = createElement("div");
			strong = createElement("strong");
			text = createText(i);
			text_1 = createText("\n\n\t\t");
			span = createElement("span");
			text_2 = createText(text_2_value);
			text_3 = createText(" wrote ");
			text_4 = createText(text_4_value);
			text_5 = createText(" ago:");
			text_6 = createText("\n\n\t\t");
			raw_before = createElement('noscript');
			this.hydrate();
		},

		hydrate: function(nodes) {
			div.className = "comment";
			span.className = "meta";
		},

		mount: function(target, anchor) {
			insertNode(div, target, anchor);
			appendNode(strong, div);
			appendNode(text, strong);
			appendNode(text_1, div);
			appendNode(span, div);
			appendNode(text_2, span);
			appendNode(text_3, span);
			appendNode(text_4, span);
			appendNode(text_5, span);
			appendNode(text_6, div);
			appendNode(raw_before, div);
			raw_before.insertAdjacentHTML("afterend", raw_value);
		},

		update: function(changed, state, each_block_value, comment, i) {
			if ( (changed.comments) && text_2_value !== (text_2_value = comment.author) ) {
				text_2.data = text_2_value;
			}

			if ( (changed.elapsed || changed.comments || changed.time) && text_4_value !== (text_4_value = state.elapsed(comment.time, state.time)) ) {
				text_4.data = text_4_value;
			}

			if ( (changed.comments) && raw_value !== (raw_value = comment.html) ) {
				detachAfter(raw_before);
				raw_before.insertAdjacentHTML("afterend", raw_value);
			}
		},

		unmount: function() {
			detachAfter(raw_before);

			detachNode(div);
		},

		destroy: noop
	};
}

function SvelteComponent(options) {
	this.options = options;
	this._state = options.data || {};

	this._observers = {
		pre: Object.create(null),
		post: Object.create(null)
	};

	this._handlers = Object.create(null);

	this._root = options._root || this;
	this._yield = options._yield;
	this._bind = options._bind;

	this._fragment = create_main_fragment(this._state, this);

	if (options.target) {
		this._fragment.create();
		this._fragment.mount(options.target, options.anchor || null);
	}
}

assign(SvelteComponent.prototype, proto);

export default SvelteComponent;