import { z } from "zod";
import type {
	ChiBaseApi,
	ChiModuleDefinition,
	CohortIdentity,
} from "../contract";
import { version } from "../package.json";

export const CHI_BASE_MODULE_ID = "chi-base";

export const identitySchema = z.object({
	github: z.string().default(""),
	displayName: z.string().default(""),
	team: z.string().default(""),
	role: z.string().default(""),
	relayPublicKey: z.string().default(""),
});

export function createChiBaseModule(): ChiModuleDefinition<
	ChiBaseApi,
	CohortIdentity
> {
	let identity: CohortIdentity = identitySchema.parse({});
	const listeners = new Set<(identity: CohortIdentity) => void>();
	return {
		id: CHI_BASE_MODULE_ID,
		version,
		api: {
			getIdentity: () => identity,
			onIdentityChange(listener) {
				listeners.add(listener);
				return () => listeners.delete(listener);
			},
		},
		config: { schemaVersion: 1, schema: identitySchema },
		initialize(_chi, config) {
			identity = config;
		},
		onConfigChange(_chi, current) {
			identity = current;
			for (const listener of listeners) listener(current);
		},
	};
}