import { by_character, by_lurid } from '@andyburke/fsdb/organizers';
import { FSDB_COLLECTION } from 'jsr:@andyburke/fsdb';
import { FSDB_INDEXER_SYMLINKS } from '@andyburke/fsdb/indexers';

/**
 * @typedef {object} TIMESTAMPS
 * @property {string} created		when the event was created
 * @property {string} updated		when the event was last updated
 */

/**
 * Event
 *
 * @property {string} id					- room_id(lurid):event_id(lurid)
 * @property {string} creator_id			- id of the source user
 * @property {string} room_id				- id of the target room
 * @property {string} type					- event type
 * @property {string[]} [tags]				- optional event tags
 * @property {Record<string,any>} [data]	- optional data payload of the event
 * @property {TIMESTAMPS} timestamps		- timestamps that will be set by the server
 */
export type EVENT = {
	id: string;
	creator_id: string;
	type: string;
	tags?: string[];
	data?: Record<string, any>;
	timestamps: {
		created: string;
		updated: string;
	};
};

export const EVENTS = new FSDB_COLLECTION<EVENT>({
	name: 'events',
	id_field: 'id',
	organize: (combined_id) => {
		const [room_id, event_id] = combined_id.split(':', 2);
		return ['rooms', room_id, event_id.substring(0, 14), `${event_id}.json`];
	},
	indexers: {
		creator_id: new FSDB_INDEXER_SYMLINKS<EVENT>({
			name: 'creator_id',
			field: 'creator_id',
			organize: by_lurid
		}),

		tags: new FSDB_INDEXER_SYMLINKS<EVENT>({
			name: 'tags',
			get_values_to_index: (event): string[] => {
				return (event.tags ?? []).map((tag) => tag.toLowerCase());
			},
			organize: by_character
		})
	}
});