import {z} from 'zod'

export type DID = unknown;

export type AssetIdentifier = string;

export type GetApiEntitiesEntityDIDRelationshipsArgs = {entityDID: DID, from?: string | undefined, to?: string | undefined, custodian?: string | undefined, asset?: Array<AssetIdentifier> | undefined};

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

export const ownershipProof = z.union([z.object({type: z.enum(["eip-191", "eip-712", "bip-137"]), proof: z.string(), attestation: z.string(), address: z.string().optional(), status: z.string().optional()}), z.object({type: z.literal("screenshot"), url: z.string()}), z.object({type: z.literal("self-declaration"), did: z.string().optional(), address: z.string().optional(), attestation: z.string(), confirmed: z.boolean().optional(), status: z.string().optional()}), z.object({type: z.literal("microtransfer"), did: z.string().optional(), address: z.string().optional(), proof: z.string(), chain: z.string().optional(), destination: z.string().optional(), amountSubunits: z.string().optional(), status: z.string().optional()}), z.object({type: z.string()}).and(z.record(z.string(), z.unknown()))]);

export const relationshipWithProofs = z.object({"@id": z.string(), "@type": z.string().optional(), from: z.string().min(1), to: z.string().min(1), custodian: z.string().min(3).max(255).nullable().optional(), status: z.enum(["UNCONFIRMED", "CONFIRMED", "PROVEN"]), memoTag: z.string().nullable().optional(), createdTime: z.string().optional(), updatedTime: z.string().optional(), proofId: z.string().optional(), proofs: z.array(ownershipProof)}).and(z.record(z.string(), z.unknown()));

export const relationshipList = z.object({relationships: z.array(relationshipWithProofs)}).and(z.record(z.string(), z.unknown()));

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
};

/**
 * List relationships for an entity
 * 
 * GET /entities/{entityDID}/relationships
 */
export const getApiEntitiesEntityDIDRelationships = async (args: GetApiEntitiesEntityDIDRelationshipsArgs, options?: GetApiEntitiesEntityDIDRelationshipsOptions) => {
const {baseUrl = "https://api.eu1.notabene.id", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.custodian != null) query.append("custodian", String(args.custodian))
for (const item of args.asset ?? []) query.append("asset", String(item))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/entities/${encodeURIComponent(String(args.entityDID))}/relationships${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(relationshipList, await res.json())
};