import {z} from 'zod'

export type GetApiApiV1MemoriesArgs = {space_uuid?: string | undefined, space_id?: string | undefined, memory_type?: ('viewpoint' | 'semantic' | 'episode' | 'inference') | undefined, sort_by?: ('created_at' | 'importance_score' | 'event_time' | 'last_accessed_at' | 'access_frequency') | undefined, order?: ('asc' | 'desc') | undefined, limit?: number | undefined, offset?: (number | null) | undefined};

export type GetApiApiV1MemoriesOptions = {baseUrl: string, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const memoryResponse = z.object({id: z.string(), space_id: z.string(), content: z.string(), memory_type: z.string(), importance_score: z.number().nullable(), event_time: z.string().nullable(), meta: z.record(z.string(), z.unknown()).nullable(), access_frequency: z.number().int(), last_accessed_at: z.string(), forgotten_at: z.string().nullable(), created_at: z.string()});

export const memoryListResponse = z.object({memories: z.array(memoryResponse), count: z.number().int().gte(0)});

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
};

/**
 * List memories
 * 
 * GET /api/v1/memories
 */
export const getApiApiV1Memories = async (args: GetApiApiV1MemoriesArgs, options: GetApiApiV1MemoriesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.space_uuid != null) query.append("space_uuid", String(args.space_uuid))
if (args.space_id != null) query.append("space_id", String(args.space_id))
if (args.memory_type != null) query.append("memory_type", String(args.memory_type))
if (args.sort_by != null) query.append("sort_by", String(args.sort_by))
if (args.order != null) query.append("order", String(args.order))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/memories${query.size > 0 ? `?${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(memoryListResponse, await res.json())
};