import {z} from 'zod'

export type PossibleRegion = 'AMS' | 'ASB' | 'AT' | 'BE' | 'BO' | 'BR' | 'BU' | 'CA' | 'CO' | 'CZ' | 'DE' | 'DEN' | 'DK' | 'ES' | 'FR' | 'GA' | 'GR' | 'HK' | 'HR' | 'ID' | 'IL' | 'ISR' | 'IT' | 'JH' | 'JP' | 'LA' | 'MI' | 'MX' | 'MY' | 'NG' | 'NY' | 'PH' | 'PL' | 'SE' | 'SG' | 'SIL' | 'SYD' | 'TH' | 'TR' | 'TX' | 'UK' | 'WA';

export type CreateDatabaseGroupPayload = {display_name: string, storage_region: string, primary_regions: Array<PossibleRegion>, replicas_regions: Array<PossibleRegion>};

export type CreateApiV1GroupsArgs = {body: CreateDatabaseGroupPayload};

export type CreateApiV1GroupsOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const databaseGroupId = z.string();

export const possibleRegion = z.enum(["AMS", "ASB", "AT", "BE", "BO", "BR", "BU", "CA", "CO", "CZ", "DE", "DEN", "DK", "ES", "FR", "GA", "GR", "HK", "HR", "ID", "IL", "ISR", "IT", "JH", "JP", "LA", "MI", "MX", "MY", "NG", "NY", "PH", "PL", "SE", "SG", "SIL", "SYD", "TH", "TR", "TX", "UK", "WA"]);

export const databaseGroup = z.object({id: databaseGroupId, name: z.string(), storage_region: z.string(), primary_regions: z.array(possibleRegion), replicas_regions: z.array(possibleRegion)});

export const createDatabaseGroupResponse = z.object({group: databaseGroup});

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
 * 
 * POST /v1/groups
 * 
 * Also accepts auth: AccessKey
 */
export const createApiV1Groups = async (args: CreateApiV1GroupsArgs, options?: CreateApiV1GroupsOptions) => {
const {baseUrl = "https://api.bunny.net/database", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (Bearer !== undefined) headers.set("Authorization", Bearer)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/groups${query.size > 0 ? `?${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(createDatabaseGroupResponse, await res.json())
};