import {z} from 'zod'

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

export const shieldPlanType = z.union([z.literal(0), z.literal(1), z.literal(2), z.literal(3)]);

export const wAFExecutionMode = z.union([z.literal(0), z.literal(1)]);

export const pullZoneWafConfigVariableModel = z.object({name: z.string().nullable(), valueEncoded: z.string().nullable()});

export const wAFPayloadLimitAction = z.union([z.literal(0), z.literal(1), z.literal(2)]);

export const dDoSShieldSensitivity = z.union([z.literal(0), z.literal(1), z.literal(2), z.literal(3), z.literal(4), z.literal(5)]);

export const shieldZoneRequest = z.object({shieldZoneId: z.number().int().optional(), premiumPlan: z.boolean().nullable().optional(), planType: shieldPlanType.optional(), learningMode: z.boolean().nullable().optional(), learningModeUntil: z.string().nullable().optional(), wafEnabled: z.boolean().nullable().optional(), wafExecutionMode: wAFExecutionMode.optional(), wafDisabledRules: z.array(z.string()).nullable().optional(), wafLogOnlyRules: z.array(z.string()).nullable().optional(), wafCustomRuleOrder: z.array(z.number().int()).nullable().optional(), wafRequestHeaderLoggingEnabled: z.boolean().nullable().optional(), requestBodyLoggingEnabled: z.boolean().nullable().optional(), wafRequestIgnoredHeaders: z.array(z.string()).nullable().optional(), wafRealtimeThreatIntelligenceEnabled: z.boolean().nullable().optional(), wafProfileId: z.number().int().nullable().optional(), wafEngineConfig: z.array(pullZoneWafConfigVariableModel).nullable().optional(), wafRequestBodyLimitAction: wAFPayloadLimitAction.optional(), wafResponseBodyLimitAction: wAFPayloadLimitAction.optional(), dDoSShieldSensitivity: dDoSShieldSensitivity.optional(), dDoSChallengeWindow: z.number().int().nullable().optional(), whitelabelResponsePages: z.boolean().nullable().optional()});

export const botDetectionExecutionMode = z.union([z.literal(0), z.literal(1)]);

export const uploadScanningScannerMode = z.union([z.literal(0), z.literal(1), z.literal(2)]);

export const accessListAction = z.union([z.literal(0), z.literal(1), z.literal(2), z.literal(3), z.literal(4), z.literal(5)]);

export const suggestedAccessList = z.object({listId: z.number().int(), name: z.string().nullable(), description: z.string().nullable().optional(), requiredPlan: shieldPlanType, action: accessListAction});

export const shieldZoneDefaults = z.object({shieldZone: shieldZoneRequest, botDetectionExecutionMode: botDetectionExecutionMode, csamScanningMode: uploadScanningScannerMode, antivirusScanningMode: uploadScanningScannerMode, accessLists: z.array(suggestedAccessList).nullable()});

export const httpStatusCode = z.union([z.literal(100), z.literal(101), z.literal(102), z.literal(103), z.literal(200), z.literal(201), z.literal(202), z.literal(203), z.literal(204), z.literal(205), z.literal(206), z.literal(207), z.literal(208), z.literal(226), z.literal(300), z.literal(301), z.literal(302), z.literal(303), z.literal(304), z.literal(305), z.literal(306), z.literal(307), z.literal(308), z.literal(400), z.literal(401), z.literal(402), z.literal(403), z.literal(404), z.literal(405), z.literal(406), z.literal(407), z.literal(408), z.literal(409), z.literal(410), z.literal(411), z.literal(412), z.literal(413), z.literal(414), z.literal(415), z.literal(416), z.literal(417), z.literal(421), z.literal(422), z.literal(423), z.literal(424), z.literal(426), z.literal(428), z.literal(429), z.literal(431), z.literal(451), z.literal(500), z.literal(501), z.literal(502), z.literal(503), z.literal(504), z.literal(505), z.literal(506), z.literal(507), z.literal(508), z.literal(510), z.literal(511)]);

export const genericRequestResponse = z.object({statusCode: httpStatusCode.optional(), success: z.boolean().optional(), message: z.string().nullable().optional(), errorKey: z.string().nullable().optional()});

export const getShieldZoneDefaultsResponse = z.object({data: shieldZoneDefaults.optional(), error: genericRequestResponse.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
};

/**
 * Get the recommended defaults for creating a Shield Zone
 * 
 * GET /shield/shield-zone/defaults
 */
export const getApiShieldShieldZoneDefaults = async (options?: GetApiShieldShieldZoneDefaultsOptions) => {
const {baseUrl = "https://api.bunny.net", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/shield/shield-zone/defaults${query.size > 0 ? `?${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(getShieldZoneDefaultsResponse, await res.json())
};