import {z} from 'zod'

export type GetApiApiV2WebhooksArgs = {'page[before]'?: string | undefined, 'page[after]'?: string | undefined, 'page[size]'?: number | undefined, 'filter[name_contains]'?: string | undefined, 'filter[status]'?: ('active' | 'inactive') | undefined, sort?: ('name' | 'status') | undefined};

export type GetApiApiV2WebhooksOptions = {baseUrl?: string | undefined, apiTokenAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const basicAuthAuthentication = z.object({type: z.literal("basic_auth"), data: z.object({username: z.string(), password: z.string().optional()}).optional()});

export const bearerTokenAuthentication = z.object({type: z.literal("bearer_token"), data: z.object({token: z.string().optional()}).optional()});

export const apiKeyAuthentication = z.object({type: z.literal("api_key"), data: z.object({name: z.string(), value: z.string().optional()}).optional(), add_position: z.enum(["header", "query_string"])});

export const webhookSigningSecret = z.object({algorithm: z.string().optional(), secret: z.string().optional()});

export const webhook = z.object({id: z.string().optional(), name: z.string(), description: z.string().optional(), endpoint: z.string(), http_method: z.enum(["GET", "POST", "PUT", "PATCH", "DELETE"]), request_format: z.enum(["json", "xml", "form_encoded"]), status: z.enum(["active", "inactive"]), subscriptions: z.array(z.string()).optional(), authentication: z.union([basicAuthAuthentication, bearerTokenAuthentication, apiKeyAuthentication]).optional(), custom_headers: z.record(z.string(), z.string()).optional(), signing_secret: webhookSigningSecret.optional(), external_source: z.object({name: z.string().optional(), version: z.string().optional()}).optional(), created_at: z.string().optional(), created_by: z.string().optional(), updated_at: z.string().optional(), updated_by: z.string().optional()});

export const paginationMeta = z.object({has_more: z.boolean().optional(), after_cursor: z.string().optional(), before_cursor: z.string().optional(), count: z.number().int().optional()});

export const paginationLinks = z.object({prev: z.string().optional(), next: z.string().optional()});

export const webhookListResponse = z.object({webhooks: z.array(webhook).optional(), meta: paginationMeta.optional(), links: paginationLinks.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
};

/**
 * List Webhooks
 * 
 * GET /api/v2/webhooks
 */
export const getApiApiV2Webhooks = async (args: GetApiApiV2WebhooksArgs, options?: GetApiApiV2WebhooksOptions) => {
const {baseUrl = "https://example.zendesk.com", fetch: fetchFn = fetch, apiTokenAuth} = options ?? {}

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

if (args['page[before]'] != null) query.append("page[before]", String(args['page[before]']))
if (args['page[after]'] != null) query.append("page[after]", String(args['page[after]']))
if (args['page[size]'] != null) query.append("page[size]", String(args['page[size]']))
if (args['filter[name_contains]'] != null) query.append("filter[name_contains]", String(args['filter[name_contains]']))
if (args['filter[status]'] != null) query.append("filter[status]", String(args['filter[status]']))
if (args.sort != null) query.append("sort", String(args.sort))
if (apiTokenAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${apiTokenAuth.username}:${apiTokenAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/webhooks${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(webhookListResponse, await res.json())
};