import {z} from 'zod'

export type OpenAICompatibleMessage = {role: 'user' | 'assistant', content: string, alias?: (string | null) | undefined, created_at?: (string | null) | undefined};

export type ProactiveTopicRequest = {messages: Array<OpenAICompatibleMessage>, agent_context?: (string | null) | undefined};

export type CreateApiApiV1UsersRoleplayProactiveUserIdArgs = {user_id: unknown | unknown, topk?: number | undefined, max_token_size?: number | undefined, prefer_topics?: Array<string> | undefined, only_topics?: Array<string> | undefined, max_subtopic_size?: number | undefined, topic_limits_json?: string | undefined, body: ProactiveTopicRequest};

export type CreateApiApiV1UsersRoleplayProactiveUserIdOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const proactiveTopicData = z.object({action: z.enum(["new_topic", "continue"]), topic_prompt: z.string().nullable().optional()});

export const cODE = z.union([z.literal(0), z.literal(400), z.literal(401), z.literal(403), z.literal(404), z.literal(405), z.literal(409), z.literal(422), z.literal(500), z.literal(501), z.literal(502), z.literal(503), z.literal(504), z.literal(520)]);

export const proactiveTopicResponse = z.object({data: proactiveTopicData.nullable().optional(), errno: cODE.optional(), errmsg: z.string().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
};

/**
 * Infer Proactive Topics
 * 
 * POST /api/v1/users/roleplay/proactive/{user_id}
 */
export const createApiApiV1UsersRoleplayProactiveUserId = async (args: CreateApiApiV1UsersRoleplayProactiveUserIdArgs, options?: CreateApiApiV1UsersRoleplayProactiveUserIdOptions) => {
const {baseUrl = "https://api.memobase.dev", 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 (args.topk != null) query.append("topk", String(args.topk))
if (args.max_token_size != null) query.append("max_token_size", String(args.max_token_size))
for (const item of args.prefer_topics ?? []) query.append("prefer_topics", String(item))
for (const item of args.only_topics ?? []) query.append("only_topics", String(item))
if (args.max_subtopic_size != null) query.append("max_subtopic_size", String(args.max_subtopic_size))
if (args.topic_limits_json != null) query.append("topic_limits_json", String(args.topic_limits_json))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/users/roleplay/proactive/${encodeURIComponent(String(args.user_id))}${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(proactiveTopicResponse, await res.json())
};