import {z} from 'zod'

export type GetApiApiImConversationsArgs = {withUnread?: boolean | undefined, unreadOnly?: boolean | undefined};

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

export const iMConversation = z.object({id: z.string().optional(), type: z.enum(["direct", "group", "channel"]).optional(), title: z.string().optional(), description: z.string().optional(), status: z.enum(["active", "archived", "deleted"]).optional(), lastMessageAt: z.string().optional(), createdAt: z.string().optional(), unreadCount: z.number().int().optional()});

export const getApiApiImConversationsResponse = z.object({ok: z.boolean().optional(), data: z.array(iMConversation).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 conversations
 * 
 * GET /api/im/conversations
 * 
 * Also accepts auth: apiKey
 */
export const getApiApiImConversations = async (args: GetApiApiImConversationsArgs, options?: GetApiApiImConversationsOptions) => {
const {baseUrl = "https://prismer.cloud", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.withUnread != null) query.append("withUnread", String(args.withUnread))
if (args.unreadOnly != null) query.append("unreadOnly", String(args.unreadOnly))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/im/conversations${query.size > 0 ? `?${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(getApiApiImConversationsResponse, await res.json())
};