namespace _zeitbild.api
{
	
	/**
	 */
	export function register_calendar_list(
		rest_subject : lib_plankton.rest_caldav.type_rest
	) : void
	{
		register<
			null,
			Array<
				{
					id : int;
					name : string;
					access_level : string;
				}
			>
		>(
			rest_subject,
			lib_plankton.http.enum_method.get,
			"/calendar",
			{
				"description": "listet alle verfügbaren Kalender auf",
				"query_parameters": () => ([
				]),
				"output_schema": () => ({
					"type": "array",
					"items": {
						"type": "object",
						"nullable": false,
						"additionalProperties": false,
						"properties": {
							"id": {
								"type": "number",
								"nullable": false,
							},
							"name": {
								"type": "string",
								"nullable": false,
							},
							"access_level": {
								"type": "string",
								"nullable": true,
								"enum": ["none", "edit", "view", "admin"]
							},
						},
						"required": [
							"id",
							"name",
							"public",
							"role",
						],
					}
				}),
				"restriction": restriction_none,
				"execution": async (stuff) => {
					const user_id : (null | _zeitbild.type_user_id) = await (
						session_from_stuff(stuff)
						.then(
							(session : {key : string; value : lib_plankton.session.type_session;}) => (
								_zeitbild.service.user.identify(session.value.name)
								.catch(x => Promise.resolve(null))
							)
						)
						.catch(x => Promise.resolve(null))
					);
					
					return (
						_zeitbild.service.calendar.overview(user_id)
						.then(
							(data_raw) => Promise.resolve(
								data_raw
								.map(
									(entry) => ({
										"id": entry.id,
										"name": entry.name,
										"access_level": _zeitbild.value_object.access_level.to_string(entry.access_level),
									})
								)
							)
						)
						.then(
							(data) => Promise.resolve({
								"status_code": 200,
								"data": data,
							})
						)
					);
				}
			}
		);
	}
	
}