import { pickAuthInput } from './auth.ts'
import { listBases } from './list-bases.ts'
import type { AirtableAuthInput, AirtableBaseSummary } from './types.ts'
import { requireRecord, requireString } from './types.ts'

export type GetBaseInput = AirtableAuthInput & {
	/** Base id (`app…`). */
	baseId: string
}

const MAX_BASE_PAGES = 20

/**
 * Get one Airtable base the token can access by id. Needs `schema.bases:read`.
 * @example
 * import getBase from 'kody:@kody/airtable/get-base'
 * const base = await getBase({ baseId: 'appXXXXXXXXXXXXXX' })
 */
export async function getBase(input: GetBaseInput): Promise<AirtableBaseSummary> {
	const baseId = requireString(input.baseId, 'baseId')
	let offset: string | undefined
	for (let page = 0; page < MAX_BASE_PAGES; page += 1) {
		const result = await listBases({ ...input, offset })
		const match = result.items.find((item) => item.id === baseId)
		if (match) return match
		if (!result.pageInfo.nextOffset) break
		offset = result.pageInfo.nextOffset
	}
	throw new Error(
		`Airtable base not found for this token: ${baseId}. Confirm the base is granted to the PAT or OAuth connection and that schema.bases:read is included.`,
	)
}

/**
 * Get one Airtable base the token can access by id.
 * @example
 * import getBase from 'kody:@kody/airtable/get-base'
 * const base = await getBase({ baseId: 'appXXXXXXXXXXXXXX' })
 */
export default async function getBaseEntrypoint(
	params: Partial<GetBaseInput> & Record<string, unknown> = {},
) {
	const input = requireRecord(params, 'get-base')
	return getBase({
		baseId: requireString(input.baseId, 'baseId'),
		...pickAuthInput(input),
	})
}