"use strict";

import Emel from 'emel';
import fa_emel from './forkawesome_emel.mjs';

import ui_item_index from './ui_item_index.mjs';

class TableView {
	constructor(el) {
		if(el === null || typeof el === "undefined") throw new Error(`Expected HTML element as the first argument, but got null or undefined.`);
		this.el = el;
		this.el_parts = new Map();
		this.emel = new Emel().emel;
	}
	
	clear() {
		this.el_parts.clear();
		// No need to call this here, as evereything gets replaced instantly at the end of init()
		// this.el.replaceChildren();
	}
	
	init(tabledef) {
		this.clear();
		const parts = this.emel(`h2>(${fa_emel(tabledef.icon)}+{?})^div.data-display`, {
			placeholders: [
				tabledef.name
			]
		});
		const el_dataitems = parts.querySelector(".data-display");
		for(let def of tabledef.items) {
			let el = document.createElement("div");
			el.classList.add("data-item");
			el_dataitems.appendChild(el);
			
			if(typeof ui_item_index[def.type] !== "undefined") {
				let item_manager = new ui_item_index[def.type](el, def);
				this.el_parts.set(def.name, item_manager);
			}
			else {
				console.warn(`Unknown item definition type '${def.type}', ignoring. This is probably a bug.`);
			}
		}
		
		this.el.replaceChildren(parts);
	}
	
	async switch_table(table_name) {
		table_name = table_name.replace(/[^a-z0-9-_]/g, "");
		this.clear();
		for await (let tabledef of await globalThis.sysquery.table(table_name)) {
			this.append_table(tabledef.peer, tabledef.table);
		}
	}
	
	append_table(peer, table) {
		for(let [ def_name, item_manager ] of this.el_parts) {
			if(item_manager === null) continue;
			
			item_manager.append(peer, table);
		}
	}
}

export default TableView;