import {z} from 'zod'

export type OperationType = 'unknown' | 'add' | 'remove' | 'replace' | 'move' | 'copy' | 'test';

export type JsonPatchOperation = {op: OperationType, path: string, from?: (string | null) | undefined, value: unknown};

export type PatchApiV1WebhooksWebhookIdArgs = {webhookId: number, body: Array<JsonPatchOperation>};

export type PatchApiV1WebhooksWebhookIdOptions = {baseUrl?: string | undefined, Basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const webHookHttpMethod = z.enum(["get", "post"]);

export const webhookHeaderResponseModel = z.object({key: z.string(), value: z.string(), isSecure: z.boolean()});

export const webhookConfig = z.object({name: z.string(), configId: z.string()});

export const webhookEnvironment = z.object({name: z.string(), environmentId: z.string()});

export const webhookResponseModel = z.object({webhookId: z.number().int(), url: z.string(), httpMethod: webHookHttpMethod, content: z.string().nullable(), webHookHeaders: z.array(webhookHeaderResponseModel), config: webhookConfig, environment: webhookEnvironment});

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
};

/**
 * Update Webhook
 * 
 * PATCH /v1/webhooks/{webhookId}
 */
export const patchApiV1WebhooksWebhookId = async (args: PatchApiV1WebhooksWebhookIdArgs, options?: PatchApiV1WebhooksWebhookIdOptions) => {
const {baseUrl = "https://api.configcat.com", fetch: fetchFn = fetch, Basic} = options ?? {}

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

if (Basic !== undefined) headers.set('authorization', `Basic ${btoa(`${Basic.username}:${Basic.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/webhooks/${encodeURIComponent(String(args.webhookId))}${query.size > 0 ? `?${query}` : ''}`

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