import {z} from 'zod'

export type GetApiApiV1WWIdAssistantMentionsSuggestionsArgs = {wId: string, query: string, select?: (Array<'agents' | 'users'>) | undefined, current?: boolean | undefined};

export type GetApiApiV1WWIdAssistantMentionsSuggestionsOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const richMention = z.object({id: z.string(), type: z.enum(["agent", "user"]), label: z.string(), pictureUrl: z.string(), description: z.string(), userFavorite: z.boolean().nullable().optional()});

export const getApiApiV1WWIdAssistantMentionsSuggestionsResponse = z.object({suggestions: z.array(richMention).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
};

/**
 * Get mention suggestions
 * 
 * GET /api/v1/w/{wId}/assistant/mentions/suggestions
 */
export const getApiApiV1WWIdAssistantMentionsSuggestions = async (args: GetApiApiV1WWIdAssistantMentionsSuggestionsArgs, options?: GetApiApiV1WWIdAssistantMentionsSuggestionsOptions) => {
const {baseUrl = "https://dust.tt", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.query != null) query.append("query", String(args.query))
for (const item of args.select ?? []) query.append("select", String(item))
if (args.current != null) query.append("current", String(args.current))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/w/${encodeURIComponent(String(args.wId))}/assistant/mentions/suggestions${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(getApiApiV1WWIdAssistantMentionsSuggestionsResponse, await res.json())
};