import {z} from 'zod'

export type EncryptedCatalogProperty = {encrypted_value: string, name: string, preview: string};

export type CreateCatalogParams = {$schema?: string | undefined, environment: string, name: string, properties: Array<EncryptedCatalogProperty>, type: 'snowflake-open-catalog' | 'apache-polaris' | 'cloudflare-r2-catalog' | 'lakekeeper' | 'tower-catalog' | 's3-tables'};

export type CreateApiCatalogsArgs = {body: CreateCatalogParams};

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

export const catalogProperty = z.object({environment_variable: z.string().optional(), name: z.string(), preview: z.string()});

export const catalog = z.object({CreatedAt: z.string(), environment: z.string(), name: z.string(), properties: z.array(catalogProperty), slug: z.string().optional(), type: z.string()});

export const createCatalogResponse = z.object({$schema: z.string().optional(), catalog: catalog});

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 catalog
 * 
 * POST /catalogs
 * 
 * Also accepts auth: APIKeyAuth
 */
export const createApiCatalogs = async (args: CreateApiCatalogsArgs, options?: CreateApiCatalogsOptions) => {
const {baseUrl = "https://api.tower.dev/v1", fetch: fetchFn = fetch, AccessTokenAuth} = options ?? {}

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

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

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