import {z} from 'zod'

export type ProgramSchemaType = 'stampCard' | 'tieredMembership' | 'specialOffers' | 'custom';

export type ProgramType = 'loyalty' | 'giftcard';

export type PassScannerType = 'Browser' | 'PassVerifier' | 'CodeReadr' | 'None';

export type TemplatePlaceholderType = 'text' | 'email' | 'number' | 'date' | 'selection' | 'json';

export type TemplatePlaceholder = {name: string, type?: TemplatePlaceholderType | undefined, displayName?: (string | null) | undefined, defaultValue?: (string | null) | undefined, points?: (number | null) | undefined, options?: (string | null) | undefined, required?: (boolean | null) | undefined};

export type CreateProgramPayload = {passTypeIdentifier: string, schema?: ProgramSchemaType | undefined, programType?: ProgramType | undefined, name: string, description?: (string | null) | undefined, language?: (string | null) | undefined, country?: (string | null) | undefined, company?: (string | null) | undefined, address?: (string | null) | undefined, website?: (string | null) | undefined, email?: (string | string | null) | undefined, phone?: (string | null) | undefined, terms?: (string | null) | undefined, pointsAddEmail?: (number | null) | undefined, pointsAddPhone?: (number | null) | undefined, pointsInstallPass?: (number | null) | undefined, pointsScanPass?: (number | null) | undefined, dynamicScanPoints?: (boolean | null) | undefined, pointsReferral?: (number | null) | undefined, referralRequiredPoints?: (number | null) | undefined, scannerType?: (PassScannerType | null) | undefined, customPointsChangeMessage?: (string | null) | undefined, disableCustomPointsChangeMessage?: (boolean | null) | undefined, customPointName?: (string | null) | undefined, customPointsName?: (string | null) | undefined, customFields?: Array<TemplatePlaceholder> | undefined, requiredFields?: Array<string> | undefined, retention_period_days?: number | undefined};

export type CreateApiV2ProgramsArgs = {authorization?: (string | null) | undefined, body: CreateProgramPayload};

export type CreateApiV2ProgramsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiV2ProgramsResponse = 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
};

/**
 * Create Loyalty Program
 * 
 * POST /v2/programs
 */
export const createApiV2Programs = async (args: CreateApiV2ProgramsArgs, options?: CreateApiV2ProgramsOptions) => {
const {baseUrl = "https://api.loyalty.dog", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v2/programs${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiV2ProgramsResponse, await res.json())
};