import {z} from 'zod'

export type MCPEventsArguments = {all_projects?: boolean | undefined, for: string, issue_uid?: string | undefined, project_uids?: Array<string> | undefined};

export type MCPEventsDelivery = {mode: string, secret?: string | undefined, url: string};

export type MCPEventsForwarderScope = {all?: boolean | undefined, projects?: Array<string> | undefined};

export type MCPEventsSubscribeBody = {arguments: MCPEventsArguments, delivery: MCPEventsDelivery, forwarder_scope?: MCPEventsForwarderScope | undefined, name: string, no_expiry?: boolean | undefined, ttl_ms?: number | undefined};

export type CreateApiApiV1McpEventsSubscribeArgs = {body: MCPEventsSubscribeBody};

export type CreateApiApiV1McpEventsSubscribeOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const mCPEventsDeliveryStatus = z.object({active: z.boolean(), failed_since: z.string().optional(), last_delivery_at: z.string().optional(), last_error: z.string().optional()}).and(z.record(z.string(), z.unknown()));

export const mCPEventsSubscribeResponseBody = z.object({delivery_status: mCPEventsDeliveryStatus, id: z.string(), refresh_before: z.string().nullable()}).and(z.record(z.string(), z.unknown()));

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 or refresh an MCP Events webhook subscription
 * 
 * POST /api/v1/mcp-events/subscribe
 */
export const createApiApiV1McpEventsSubscribe = async (args: CreateApiApiV1McpEventsSubscribeArgs, options: CreateApiApiV1McpEventsSubscribeOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/mcp-events/subscribe${query.size > 0 ? `?${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(mCPEventsSubscribeResponseBody, await res.json())
};