import {z} from 'zod'

export type MessageIn = {content?: (string | null) | undefined, chat_id?: (number | null) | undefined, updated_at?: (string | null) | undefined, project_id?: (number | null) | undefined, model?: (string | null) | undefined, temperature?: (number | null) | undefined, similarity_top_k?: (number | null) | undefined, system_prompt?: (string | null) | undefined, assistant_id?: (number | null) | undefined, private?: (boolean | null) | undefined, form_data?: ({[key: string]: unknown} | null) | undefined};

export type CreateApiMessagesArgs = {cookie_name?: (string | null) | undefined, body: MessageIn};

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

export const message = z.object({state: z.string().nullable().optional(), state_reason: z.string().nullable().optional(), state_changed_at: z.string().nullable().optional(), id: z.number().int().nullable().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), creator_user_id: z.number().int(), chat_id: z.number().int(), role: z.string(), content: z.string(), sent_user_msg: z.string().nullable(), parent_id: z.number().int().nullable(), completed: z.boolean().optional(), error: z.string().nullable(), hint: z.string().nullable(), llm_catalog_id: z.number().int().nullable().optional(), llm_settings_id: z.number().int().nullable().optional(), usage: z.record(z.string(), z.unknown()).nullable().optional(), celery_task_id: z.string().nullable().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
};

/**
 * Create a message
 * 
 * POST /messages/
 */
export const createApiMessages = async (args: CreateApiMessagesArgs, options?: CreateApiMessagesOptions) => {
const {baseUrl = "https://api.your-domain.com", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.cookie_name != null) query.append("cookie_name", String(args.cookie_name))
if (APIKeyHeader !== undefined) headers.set("X-API-KEY", APIKeyHeader)

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