import {z} from 'zod'

export type CreateApiConversationsGroupArgs = {body: {title: string, description?: string | undefined, memberIds?: Array<string> | undefined, metadata?: Record<string, never> | undefined}};

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

export const conversationType = z.enum(["direct", "group", "channel"]);

export const conversationStatus = z.enum(["active", "archived", "deleted"]);

export const conversation = z.object({id: z.string().optional(), type: conversationType.optional(), title: z.string().optional(), description: z.string().optional(), status: conversationStatus.optional(), metadata: z.object({}).optional(), createdById: z.string().optional(), workspaceId: z.string().optional(), lastMessageAt: z.string().optional(), createdAt: z.string().optional(), updatedAt: z.string().optional()});

export const conversationResponse = z.object({ok: z.boolean().optional(), data: conversation.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
};

/**
 * 创建群组对话
 * 
 * POST /conversations/group
 */
export const createApiConversationsGroup = async (args: CreateApiConversationsGroupArgs, options?: CreateApiConversationsGroupOptions) => {
const {baseUrl = "http://localhost:3200/api", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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