import {z} from 'zod'

export type GetApiTenantsArgs = {parent_tenant_id?: (string | null) | undefined, limit?: (number | null) | undefined, cursor?: (string | null) | undefined};

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

export const subscriptionTopicStatus = z.enum(["OPTED_OUT", "OPTED_IN", "REQUIRED"]);

export const channelClassification = z.enum(["direct_message", "email", "push", "sms", "webhook", "inbox"]);

export const subscriptionTopic = z.object({status: subscriptionTopicStatus, has_custom_routing: z.boolean().nullable().optional(), custom_routing: z.array(channelClassification).nullable().optional()});

export const defaultPreferences = z.object({items: z.array(subscriptionTopic).nullable().optional()});

export const tenant = z.object({id: z.string(), name: z.string(), parent_tenant_id: z.string().nullable().optional(), default_preferences: defaultPreferences.optional(), properties: z.record(z.string(), z.unknown()).nullable().optional(), user_profile: z.record(z.string(), z.unknown()).nullable().optional(), brand_id: z.string().nullable().optional()});

export const tenantListResponse = z.object({cursor: z.string().nullable().optional(), has_more: z.boolean(), items: z.array(tenant), next_url: z.string().nullable().optional(), url: z.string(), type: z.literal("list")});

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 a List of Tenants
 * 
 * GET /tenants
 */
export const getApiTenants = async (args: GetApiTenantsArgs, options?: GetApiTenantsOptions) => {
const {baseUrl = "https://api.courier.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.parent_tenant_id != null) query.append("parent_tenant_id", String(args.parent_tenant_id))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

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