import {z} from 'zod'

export type GetApiV2LoyaltiesTierStructuresTierStructureIdOptions = {baseUrl?: string | undefined, XAppId?: string | undefined, XAppToken?: string | undefined, fetch?: typeof fetch | undefined};

export const loyaltyV2ActivityTierStructurePointBalance = z.object({card_definition_id: z.string().optional()});

export const loyaltyV2ActivityTierStructurePointEarnedPeriod = z.object({value: z.number().int().optional(), unit: z.enum(["DAY", "WEEK", "MONTH", "YEAR"]).optional()});

export const tierStructurePointEarned = z.object({card_definition_id: z.string().optional(), period: loyaltyV2ActivityTierStructurePointEarnedPeriod.optional(), type: z.enum(["IMMEDIATELY", "NEXT_TRACKING_PERIOD"]).optional()});

export const loyaltyV2ActivityTierStructureExpirationPeriod = z.object({value: z.number().int().optional(), unit: z.enum(["DAY", "MONTH", "YEAR"]).optional()});

export const tierStructureExpirationFixedDuration = z.object({period: loyaltyV2ActivityTierStructureExpirationPeriod.optional()});

export const loyaltyV2ActivityTierStructureExpirationCalendarDate = z.object({day: z.number().int().gte(1).lte(31).optional(), month: z.number().int().gte(1).lte(12).optional()});

export const tierStructureExpirationCalendarExpiration = z.object({calendar_dates: z.array(loyaltyV2ActivityTierStructureExpirationCalendarDate).optional()});

export const tierStructureExpirationSlidingExpiration = z.object({earning_activity: z.boolean().optional(), spending_activity: z.boolean().optional(), custom_activity: z.boolean().optional(), custom_activity_types: z.array(z.string()).optional(), period: loyaltyV2ActivityTierStructureExpirationPeriod.optional()});

export const tierStructureExpiration = z.object({type: z.enum(["NO_RETENTION", "SLIDING_EXPIRATION", "FIXED_DURATION", "CALENDAR_EXPIRATION"]).optional(), fixed_duration: tierStructureExpirationFixedDuration.optional(), calendar_expiration: tierStructureExpirationCalendarExpiration.optional(), sliding_expiration: tierStructureExpirationSlidingExpiration.optional()});

export const loyaltyV2ActivityTierStructureDowngradeGracePeriod = z.object({value: z.number().int().optional(), unit: z.enum(["DAY", "MONTH", "YEAR"]).optional(), round_up: z.boolean().optional()});

export const tierStructureDowngrade = z.object({type: z.enum(["MULTI_LEVEL", "SINGLE_LEVEL", "NO_DOWNGRADE"]).optional(), grace_period: loyaltyV2ActivityTierStructureDowngradeGracePeriod.optional()});

export const v2LoyaltiesTierStructuresGetResponseBody = z.object({metadata: z.object({}), created_at: z.string(), updated_at: z.string().nullable(), id: z.string(), name: z.string(), type: z.enum(["POINT_BALANCE", "POINT_EARNED"]), point_balance: loyaltyV2ActivityTierStructurePointBalance.optional(), point_earned: tierStructurePointEarned.optional(), expiration: tierStructureExpiration, downgrade: tierStructureDowngrade, status: z.enum(["DRAFT", "ACTIVE", "INACTIVE", "DELETED"]), object: z.literal("tier_structure")});

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
};

/**
 * Get tier structure
 * 
 * GET /v2/loyalties/tier-structures/{tierStructureId}
 * 
 * Also accepts auth: bearerAuth
 */
export const getApiV2LoyaltiesTierStructuresTierStructureId = async (options?: GetApiV2LoyaltiesTierStructuresTierStructureIdOptions) => {
const {baseUrl = "https://api.voucherify.io", fetch: fetchFn = fetch, XAppId, XAppToken} = options ?? {}

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

if (XAppId !== undefined) headers.set("X-App-Id", XAppId)
if (XAppToken !== undefined) headers.set("X-App-Token", XAppToken)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/loyalties/tier-structures/${encodeURIComponent(String(args.tierStructureId))}${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(v2LoyaltiesTierStructuresGetResponseBody, await res.json())
};