import {z} from 'zod'

export type CapabilityName = string;

export type CapabilityRequest = {name: CapabilityName, version: string};

export type RestBasicAuthRequest = {username: string, password: string};

export type RestAuthRequest = {authType: 'basic', basic?: RestBasicAuthRequest | undefined};

export type RestIntegrationRequest = {url: string, capabilities: Array<CapabilityRequest>, auth: RestAuthRequest};

export type UpdateApiEposIntegrationsRestArgs = {body: RestIntegrationRequest};

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

export const capabilityResponse = z.object({name: z.string(), version: z.string(), updatedAt: z.string()});

export const restBasicAuthResponse = z.object({username: z.string()});

export const restAuthResponse = z.object({authType: z.literal("basic"), basic: restBasicAuthResponse.optional()});

export const restIntegrationResponse = z.object({url: z.string(), capabilities: z.array(capabilityResponse), auth: restAuthResponse, createdAt: z.string()});

export const updateApiEposIntegrationsRestResponse = z.array(restIntegrationResponse);

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
};

/**
 * Register a new REST integration
 * 
 * PUT /epos/integrations/rest
 */
export const updateApiEposIntegrationsRest = async (args: UpdateApiEposIntegrationsRestArgs, options?: UpdateApiEposIntegrationsRestOptions) => {
const {baseUrl = "https://api.dojo.tech", 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 = `${baseUrl.replace(/\/+$/, '')}/epos/integrations/rest${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", 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(updateApiEposIntegrationsRestResponse, await res.json())
};