import {z} from 'zod'

export type GetApiV1MessagesSessionsSessionIdCompressArgs = {session_id: string};

export type GetApiV1MessagesSessionsSessionIdCompressOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const conversationSummaryResponse = z.object({short_term: z.string().nullable().optional(), medium_term: z.string().nullable().optional(), long_term: z.string().nullable().optional(), topics: z.array(z.string()).optional(), last_updated: z.string().nullable().optional(), session_intent: z.string().nullable().optional(), key_decisions: z.array(z.string()).optional(), current_state: z.string().nullable().optional(), next_steps: z.array(z.string()).optional(), technical_details: z.array(z.string()).optional(), files_accessed: z.record(z.string(), z.unknown()).nullable().optional(), project_context: z.record(z.string(), z.unknown()).nullable().optional()});

export const sessionSummaryResponse = z.object({session_id: z.string(), summaries: conversationSummaryResponse, ai_agent_note: z.string(), from_cache: z.boolean(), message_count: 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
};

/**
 * Compress Session
 * 
 * GET /v1/messages/sessions/{session_id}/compress
 * 
 * Also accepts auth: X-API-Key
 */
export const getApiV1MessagesSessionsSessionIdCompress = async (args: GetApiV1MessagesSessionsSessionIdCompressArgs, options?: GetApiV1MessagesSessionsSessionIdCompressOptions) => {
const {baseUrl = "https://memory.papr.ai", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/messages/sessions/${encodeURIComponent(String(args.session_id))}/compress${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(sessionSummaryResponse, await res.json())
};