import {z} from 'zod'

export type PersonaDraftAnswers = {takes_files: boolean, sources?: (Array<'documents' | 'drawings' | 'knowledge_graph' | 'connected_app'>) | undefined, records_facts?: boolean | undefined, deliverable: 'chat' | 'filled_file' | 'new_file' | 'notebook', value_source: 'page' | 'lookup', delegates?: boolean | undefined, answer_language: 'user' | 'en' | 'ja', locale: 'en' | 'ja', brief?: string | undefined};

export type CreateApiApiV0AgentPersonasDraftArgs = {body: PersonaDraftAnswers};

export type CreateApiApiV0AgentPersonasDraftOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const agentPersonaDraftResponse = z.object({name: z.string(), description: z.string(), prompt: z.string(), builtin_tool_ids: z.array(z.string()), is_roaming: z.boolean()});

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
};

/**
 * Draft a persona from the setup answers
 * 
 * POST /api/v0/agent/personas/draft
 */
export const createApiApiV0AgentPersonasDraft = async (args: CreateApiApiV0AgentPersonasDraftArgs, options: CreateApiApiV0AgentPersonasDraftOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v0/agent/personas/draft${query.size > 0 ? `?${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(agentPersonaDraftResponse, await res.json())
};