/**
 */
namespace _zeitbild.frontend
{
	
	/**
	 */
	type type_conf = {
		view_mode : string;
		calendar_ids : Array<int>;
		timezone_shift : int;
	};
	
	
	/**
	 */
	async function render(
		conf : type_conf,
		calendar_ids : Array<type_calendar_id>
	) : Promise<void>
	{
		calendar_ids.sort();
		const target : HTMLElement = (document.querySelector("body") as HTMLBodyElement);
		switch (conf.view_mode) {
			default: {
				throw (new Error("invalid view mode"));
				break;
			}
			case "table": {
				const content : string = await _zeitbild.frontend.view.calendar_view_table_html(
					calendar_ids,
					{
						"from": {
							"year": 2024,
							"week": 35
						},
						"to": {
							"year": 2024,
							"week": 43
						},
						"timezone_shift": conf.timezone_shift,
					}
				);
				target.innerHTML = content;
				/*
				document.querySelectorAll(".tableview-sources-entry").forEach(
					(element) => {
						element.addEventListener(
							"click",
							(event) => {
								const element_ : HTMLElement = (event.target as HTMLElement);
								const calendar_id : type_calendar_id = parseInt(element_.getAttribute("rel") as string);
								const active : boolean = element_.classList.toggle("tableview-sources-entry-active");
								render(
									conf,
									lib_plankton.call.convey(
										calendar_ids,
										[
											(x : Array<int>) => (
												active
												?
												calendar_ids.concat([calendar_id])
												:
												calendar_ids.filter(y => (y !== calendar_id))
											),
										]
									)
								);
							}
						);
					}
				);
				 */
				break;
			}
			case "list": {
				const content : string = await _zeitbild.frontend.view.calendar_view_list_html(
					calendar_ids,
					{
						"timezone_shift": conf.timezone_shift,
					}
				);
				target.innerHTML = content;
				break;
			}
		}
		return Promise.resolve<void>(undefined);
	}
	
	
	/**
	 */
	export async function main(
	) : Promise<void>
	{
		// init
		lib_plankton.log.conf_push(
			[
				lib_plankton.log.channel_make({"kind": "console", "data": {"threshold": "info"}}),
			]
		);
		
		// conf
		const conf : type_conf = lib_plankton.json.decode(await lib_plankton.file.read("conf.json"));
		
		// args
		
		const url : URL = new URL(window.location.toString());
		const calendar_ids : Array<type_calendar_id> = (
			(url.searchParams.get("ids") !== null)
			?
			lib_plankton.call.convey(
				url.searchParams.get("ids"),
				[
					(x : string) => lib_plankton.string.split(x, ","),
					(x : Array<string>) => x.map(y => parseInt(y)),
				]
			)
			:
			(await _zeitbild.frontend.resources.backend.calendar_list()).map(x => x.key)
		);
		
		// exec
		await render(
			conf,
			calendar_ids
		);
		
		return Promise.resolve<void>(undefined);
	}
	
}