import {z} from 'zod'

export type GetApiMembersArgs = {cursor?: string | undefined, filter?: string | undefined, query?: string | undefined, rows?: number | undefined, mailto?: string | undefined, offset?: number | undefined};

export type GetApiMembersOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const query = z.object({"start-index": z.number().int(), "search-terms": z.number().int()});

export const doiCounts = z.object({"total-dois": z.number().int(), "current-dois": z.number().int(), "backfile-dois": z.number().int()});

export const breakdownsObject = z.object({"dois-by-issued-year": z.array(z.array(z.number().int()))});

export const coverageFull = z.object({"affiliations-current": z.number(), "similarity-checking-current": z.number(), "descriptions-current": z.number(), "ror-ids-current": z.number(), "references-backfie": z.number(), "funders-backfile": z.number(), "licenses-backfile": z.number(), "funders-current": z.number(), "affiliations-backfile": z.number(), "resource-links-backfile": z.number(), "orcids-backfile": z.number(), "update-policies-current": z.number(), "ror-ids-backfile": z.number(), "orcids-current": z.number(), "similarity-checking-backfile": z.number(), "descriptions-backfile": z.number(), "award-numbers-backfile": z.number(), "update-policies-backfile": z.number(), "licenses-current": z.number(), "award-numbers-current": z.number(), "abstracts-backfile": z.number(), "resource-links-current": z.number(), "abstracts-current": z.number(), "references-current": z.number()});

export const memberPrefix = z.object({name: z.string(), value: z.string()});

export const memberCountObject = z.record(z.string(), z.number().int());

export const memberCountsType = z.object({all: memberCountObject, current: memberCountObject, backfile: memberCountObject});

export const coverage = z.object({"last-status-check-time": z.number().int(), affiliations: z.number(), abstracts: z.number(), orcids: z.number(), licenses: z.number(), references: z.number(), funders: z.number(), "similarity-checking": z.number(), "award-numbers": z.number(), "ror-ids": z.number(), "update-policies": z.number(), "resource-links": z.number(), descriptions: z.number()});

export const coverageObject = z.record(z.string(), coverage);

export const coverageTypeObject = z.object({all: coverageObject, current: coverageObject, backfile: coverageObject});

export const flags = z.object({"deposits-abstracts-current": z.boolean(), "deposits-orcids-current": z.boolean(), deposits: z.boolean(), "deposits-affiliations-backfile": z.boolean(), "deposits-update-policies-backfile": z.boolean(), "deposits-award-numbers-current": z.boolean(), "deposits-resource-links-current": z.boolean(), "deposits-ror-ids-current": z.boolean(), "deposits-articles": z.boolean(), "deposits-affiliations-current": z.boolean(), "deposits-funders-current": z.boolean(), "deposits-references-backfile": z.boolean(), "deposits-ror-ids-backfile": z.boolean(), "deposits-abstracts-backfile": z.boolean(), "deposits-licenses-backfile": z.boolean(), "deposits-award-numbers-backfile": z.boolean(), "deposits-descriptions-current": z.boolean(), "deposits-references-current": z.boolean(), "deposits-resource-links-backfile": z.boolean(), "deposits-descriptions-backfile": z.boolean(), "deposits-orcids-backfile": z.boolean(), "deposits-funders-backfile": z.boolean(), "deposits-update-policies-current": z.boolean(), "deposits-licenses-current": z.boolean()});

export const member = z.object({"last-status-check-time": z.number().int(), "primary-name": z.string(), counts: doiCounts, breakdowns: breakdownsObject, prefixes: z.array(z.string()), coverage: coverageFull, prefix: z.array(memberPrefix), id: z.number().int(), tokens: z.array(z.string()), "counts-type": memberCountsType, "coverage-type": coverageTypeObject, flags: flags, location: z.string(), names: z.array(z.string())});

export const members = z.object({"items-per-page": z.number().int(), query: query, "total-results": z.number().int(), items: z.array(member)});

export const membersMessage = z.object({status: z.string(), "message-type": z.string(), "message-version": z.string(), message: members});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Returns a list of organisations that have registered content with Crossref.
 * 
 * GET /members
 */
export const getApiMembers = async (args: GetApiMembersArgs, options: GetApiMembersOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.filter != null) query.append("filter", String(args.filter))
if (args.query != null) query.append("query", String(args.query))
if (args.rows != null) query.append("rows", String(args.rows))
if (args.mailto != null) query.append("mailto", String(args.mailto))
if (args.offset != null) query.append("offset", String(args.offset))

const url = `${baseUrl.replace(/\/+$/, '')}/members${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(membersMessage, await res.json())
};