import {z} from 'zod'

export type GetApiOfferingsOfferingIdBadgesArgs = {offeringId: string};

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

export const criteria = z.object({hasCompletedCourse: z.boolean().optional(), hasPassedMandatoryAssessedQuizzes: z.boolean().optional()});

export const badgeExpiry = z.object({expires: z.boolean().optional(), expiryType: z.enum(["date", "timeframe"]).optional(), expirationDate: z.string().optional(), timeframeUnit: z.enum(["days", "months", "years"]).optional(), timeframeAmount: z.number().optional()});

export const openBadgeClass = z.object({criteria: z.object({narrative: z.string().optional()}).optional(), description: z.string().optional(), id: z.string().optional(), image: z.string().optional(), issuer: z.string().optional(), name: z.string().optional(), type: z.string().optional()});

export const badge = z.object({title: z.string().optional(), description: z.string().optional(), criterias: criteria.optional(), badgeExpiry: badgeExpiry.optional(), badgeUrl: z.string().optional(), openBadge: openBadgeClass.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
};

/**
 * Find offering badges
 * 
 * GET /offerings/{offeringId}/badges
 */
export const getApiOfferingsOfferingIdBadges = async (args: GetApiOfferingsOfferingIdBadgesArgs, options?: GetApiOfferingsOfferingIdBadgesOptions) => {
const {baseUrl = "https://api.iqualify.com/v1", fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/offerings/${encodeURIComponent(String(args.offeringId))}/badges${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(badge, await res.json())
};