import { asanaRequest } from './client.ts'
import { VIEWER_FIELDS } from './models.ts'
import type { AsanaAuthInput } from './types.ts'
import { optionalString, requireRecord } from './types.ts'
import { requireAuthMode } from './auth.ts'

export type AsanaViewer = {
	gid: string
	name: string | null
}

export type ViewerInput = AsanaAuthInput

/**
 * Return the authenticated Asana user (no email).
 * @example
 * import getViewer from 'kody:@kody/asana/viewer'
 * const viewer = await getViewer()
 */
export async function getViewer(input: ViewerInput = {}): Promise<AsanaViewer> {
	const result = await asanaRequest<{ gid?: string; name?: string }>({
		...input,
		operation: 'users.read',
		path: '/users/me',
		query: { opt_fields: VIEWER_FIELDS },
	})
	return {
		gid: result.data.gid || '',
		name: typeof result.data.name === 'string' ? result.data.name : null,
	}
}

/**
 * Return the authenticated Asana user (no email).
 * @example
 * import getViewer from 'kody:@kody/asana/viewer'
 * const viewer = await getViewer({ integrationName: 'asana-work' })
 */
export default async function viewerEntrypoint(
	params: ViewerInput & Record<string, unknown> = {},
) {
	const input = requireRecord(params, 'viewer')
	return getViewer({
		integrationName: optionalString(input.integrationName, 'integrationName'),
		integration: optionalString(input.integration, 'integration'),
		account: optionalString(input.account, 'account'),
		secretName: optionalString(input.secretName, 'secretName'),
		auth: requireAuthMode(input.auth),
	})
}