import {z} from 'zod'

export type ConnectorBase = {name?: string | undefined, displayName?: string | undefined, description?: string | undefined, type?: string | undefined, version?: string | undefined};

export type Connection = {name?: string | undefined, type?: string | undefined, connector?: ConnectorBase | undefined, isEditable?: boolean | undefined, isInternal?: boolean | undefined, metadata?: {[key: string]: Record<string, never>} | undefined};

export type CreateApiFabricFabricApiConnectionsArgs = {body: Connection};

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

export const connectorBase = z.object({name: z.string().optional(), displayName: z.string().optional(), description: z.string().optional(), type: z.string().optional(), version: z.string().optional()});

export const connection = z.object({name: z.string().optional(), type: z.string().optional(), connector: connectorBase.optional(), isEditable: z.boolean().optional(), isInternal: z.boolean().optional(), metadata: z.record(z.string(), z.object({})).optional()});

export const connectionResponse = z.object({error: z.boolean(), code: z.number().int().optional(), result: connection.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
};

/**
 * Create a connection
 * 
 * POST /_fabric/{fabric}/_api/connections
 * 
 * Also accepts auth: BearerAuth
 */
export const createApiFabricFabricApiConnections = async (args: CreateApiFabricFabricApiConnectionsArgs, options: CreateApiFabricFabricApiConnectionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/_fabric/${encodeURIComponent(String(args.fabric))}/_api/connections${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(connectionResponse, await res.json())
};