import {z} from 'zod'

export type LearningCreate = {learning_type: string, content: {[key: string]: unknown}, namespace?: (string | null) | undefined, user_id?: (string | null) | undefined, agent_id?: (string | null) | undefined, team_id?: (string | null) | undefined, session_id?: (string | null) | undefined, entity_id?: (string | null) | undefined, entity_type?: (string | null) | undefined, metadata?: ({[key: string]: unknown} | null) | undefined};

export type CreateApiLearningsArgs = {db_id?: (string | null) | undefined, table?: (string | null) | undefined, body: LearningCreate};

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

export const learningResponse = z.object({learning_id: z.string(), learning_type: z.string(), namespace: z.string().nullable().optional(), user_id: z.string().nullable().optional(), agent_id: z.string().nullable().optional(), team_id: z.string().nullable().optional(), session_id: z.string().nullable().optional(), entity_id: z.string().nullable().optional(), entity_type: z.string().nullable().optional(), content: z.record(z.string(), z.unknown()).nullable().optional(), metadata: z.record(z.string(), z.unknown()).nullable().optional(), created_at: z.number().int().nullable().optional(), updated_at: z.number().int().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 Learning
 * 
 * POST /learnings
 */
export const createApiLearnings = async (args: CreateApiLearningsArgs, options: CreateApiLearningsOptions) => {
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 (args.db_id != null) query.append("db_id", String(args.db_id))
if (args.table != null) query.append("table", String(args.table))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

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