import {z} from 'zod'

export type ScopeItem = {scope: string, effect?: ('allow' | 'deny') | undefined};

export type ServiceAccountCreate = {name: string, scopes?: (Array<ScopeItem> | null) | undefined, expires_in_days?: (number | null) | undefined, never_expires?: boolean | undefined, allow_privileged_scopes?: boolean | undefined};

export type CreateApiServiceAccountsArgs = {body: ServiceAccountCreate};

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

export const scopeSchema = z.object({id: z.string().nullable().optional(), raw: z.string(), namespace: z.string(), sub_namespace: z.string().nullable().optional(), permission: z.string(), value: z.string().optional()});

export const serviceAccountCreateResponse = z.object({id: z.string(), name: z.string(), principal: z.string(), user_id: z.string().nullable().optional(), token_prefix: z.string(), scopes: z.array(scopeSchema).optional(), created_at: z.number().int(), expires_at: z.number().int().nullable().optional(), last_used_at: z.number().int().nullable().optional(), revoked_at: z.number().int().nullable().optional(), created_by: z.string().nullable().optional(), token: z.string()});

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 Service Account
 * 
 * POST /service-accounts
 */
export const createApiServiceAccounts = async (args: CreateApiServiceAccountsArgs, options: CreateApiServiceAccountsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

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