import {z} from 'zod'

export type GetApiConsentsArgs = {from_id?: string | undefined, connection_id?: string | undefined, customer_id?: string | undefined};

export type GetApiConsentsOptions = {baseUrl?: string | undefined, appId?: string | undefined, secret?: string | undefined, fetch?: typeof fetch | undefined};

export const consent = z.object({id: z.string(), connection_id: z.string(), customer_id: z.string(), scopes: z.array(z.enum(["account_details", "holder_information", "transactions_details"])), period_days: z.number().int(), expires_at: z.string(), from_date: z.string(), to_date: z.string(), status: z.enum(["active", "expired", "revoked"]), collected_by: z.enum(["client", "saltedge"]), revoked_at: z.string(), revoke_reason: z.enum(["expired", "client", "provider", "saltedge"]), created_at: z.string(), updated_at: z.string()});

export const metaObject = z.object({next_id: z.string().optional(), next_page: z.string().optional()});

export const consentsResponse = z.object({data: z.array(consent).optional(), meta: metaObject.optional()});

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 of consents
 * 
 * GET /consents
 */
export const getApiConsents = async (args: GetApiConsentsArgs, options?: GetApiConsentsOptions) => {
const {baseUrl = "https://www.saltedge.com/api/v5", fetch: fetchFn = fetch, appId, secret} = options ?? {}

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

if (args.from_id != null) query.append("from_id", String(args.from_id))
if (args.connection_id != null) query.append("connection_id", String(args.connection_id))
if (args.customer_id != null) query.append("customer_id", String(args.customer_id))
if (appId !== undefined) headers.set("App-id", appId)
if (secret !== undefined) headers.set("Secret", secret)

const url = `${baseUrl.replace(/\/+$/, '')}/consents${query.size > 0 ? `?${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(consentsResponse, await res.json())
};