import {z} from 'zod'

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

export const localTime = z.object({hour: z.number().int().optional(), minute: z.number().int().optional(), nano: z.number().int().optional(), second: z.number().int().optional()});

export const backupScheduleModel = z.object({createdDate: z.string().optional(), cronExpression: z.string().optional(), description: z.string().optional(), dgcBackupOptions: z.array(z.enum(["CONFIGURATION", "CUSTOMIZATIONS"])).optional(), environmentId: z.string().optional(), frequencyWarning: z.string().optional(), id: z.string().optional(), maxRetained: z.number().int().optional(), modifiedDate: z.string().optional(), name: z.string().optional(), nextExecution: z.string().optional(), numberOfBackups: z.number().int().optional(), repoBackupOptions: z.array(z.enum(["DATA", "HISTORY"])).optional(), retentionDays: z.union([z.literal(7), z.literal(30), z.literal(60)]).optional(), serverTimeZoneOffset: z.object({id: z.string().optional(), rules: z.object({fixedOffset: z.boolean().optional(), transitionRules: z.array(z.object({dayOfMonthIndicator: z.number().int().optional(), dayOfWeek: z.enum(["MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY", "SUNDAY"]).optional(), localTime: localTime.optional(), midnightEndOfDay: z.boolean().optional(), month: z.enum(["JANUARY", "FEBRUARY", "MARCH", "APRIL", "MAY", "JUNE", "JULY", "AUGUST", "SEPTEMBER", "OCTOBER", "NOVEMBER", "DECEMBER"]).optional(), offsetAfter: z.object({id: z.string().optional(), totalSeconds: z.number().int().optional()}).optional(), offsetBefore: z.object({id: z.string().optional(), totalSeconds: z.number().int().optional()}).optional(), standardOffset: z.object({id: z.string().optional(), totalSeconds: z.number().int().optional()}).optional(), timeDefinition: z.enum(["UTC", "WALL", "STANDARD"]).optional()})).optional(), transitions: z.array(z.object({dateTimeAfter: z.string().optional(), dateTimeBefore: z.string().optional(), duration: z.object({nano: z.number().int().optional(), negative: z.boolean().optional(), positive: z.boolean().optional(), seconds: z.number().int().optional(), units: z.array(z.object({dateBased: z.boolean().optional(), durationEstimated: z.boolean().optional(), timeBased: z.boolean().optional()})).optional(), zero: z.boolean().optional()}).optional(), gap: z.boolean().optional(), instant: z.string().optional(), offsetAfter: z.object({id: z.string().optional(), totalSeconds: z.number().int().optional()}).optional(), offsetBefore: z.object({id: z.string().optional(), totalSeconds: z.number().int().optional()}).optional(), overlap: z.boolean().optional()})).optional()}).optional(), totalSeconds: z.number().int().optional()}).optional()});

export const getApiBackupScheduleResponse = z.array(backupScheduleModel);

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
};

/**
 * Retrieve all backup schedules
 * 
 * GET /backupSchedule
 * 
 * Also accepts auth: jwtAuth, oauth2, oauth2
 */
export const getApiBackupSchedule = async (options: GetApiBackupScheduleOptions) => {
const {baseUrl, fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

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