import {z} from 'zod'

export type GetApiFormResponsesArgs = {page?: number | undefined, limit?: number | undefined, form_id?: number | undefined};

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

export const resourceIdentifier = z.object({type: z.string(), id: z.string()});

export const links = z.object({self: z.string().optional()});

export const formResponseResource = z.object({type: z.literal("form_responses").optional(), id: z.string().optional(), attributes: z.object({email: z.string().optional(), response: z.object({}).optional(), country: z.string().nullable().optional(), city: z.string().nullable().optional(), region: z.string().nullable().optional(), timezone: z.string().nullable().optional(), language: z.string().nullable().optional(), created_at: z.string().optional()}).optional(), relationships: z.object({forms: z.object({data: resourceIdentifier.optional()}).optional(), posts: z.object({data: resourceIdentifier.optional()}).optional(), blogs: z.object({data: resourceIdentifier.optional()}).optional()}).optional(), links: links.optional()});

export const meta = z.object({total: z.number().int().optional(), page: z.number().int().optional(), limit: z.number().int().optional(), totalPages: z.number().int().optional()});

export const formResponseListResponse = z.object({jsonapi: z.object({version: z.string()}), data: z.array(formResponseResource).optional(), meta: meta.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 Form Responses
 * 
 * GET /form-responses
 */
export const getApiFormResponses = async (args: GetApiFormResponsesArgs, options?: GetApiFormResponsesOptions) => {
const {baseUrl = "https://inblog.ai/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.form_id != null) query.append("form_id", String(args.form_id))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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