import {z} from 'zod'

export type AttributeResourceTypeDTO = 'dataset' | 'check' | 'column';

export type GetApiApiV1AttributesArgs = {page?: number | undefined, resourceType?: AttributeResourceTypeDTO | undefined, size?: number | undefined};

export type GetApiApiV1AttributesOptions = {baseUrl?: string | undefined, basicAuthApiKey?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const attributeResourceTypeDTO = z.enum(["dataset", "check", "column"]);

export const attributeTypeDTO = z.enum(["text", "number", "checkbox", "datetime", "singleSelect", "multiSelect"]);

export const attributeContentDTO = z.object({allowedValues: z.array(z.string()).optional(), description: z.string().optional(), id: z.string(), label: z.string(), name: z.string(), resourceType: attributeResourceTypeDTO, type: attributeTypeDTO});

export const publicApiListAttributesResponse = z.object({content: z.array(attributeContentDTO), first: z.boolean(), last: z.boolean(), number: z.number().int(), size: z.number().int(), totalElements: z.number().int(), totalPages: z.number().int()});

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 attributes
 * 
 * GET /api/v1/attributes
 * 
 * Also accepts auth: cookieToken
 */
export const getApiApiV1Attributes = async (args: GetApiApiV1AttributesArgs, options?: GetApiApiV1AttributesOptions) => {
const {baseUrl = "https://cloud.soda.io", fetch: fetchFn = fetch, basicAuthApiKey} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.resourceType != null) query.append("resourceType", String(args.resourceType))
if (args.size != null) query.append("size", String(args.size))
if (basicAuthApiKey !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuthApiKey.username}:${basicAuthApiKey.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/attributes${query.size > 0 ? `?${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(publicApiListAttributesResponse, await res.json())
};