import {z} from 'zod'

export type GetApiApiV1ContextIdProfileArgs = {context_id: string};

export type GetApiApiV1ContextIdProfileOptions = {baseUrl: string, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const profileEntryJson = z.object({entity: z.string().nullable().optional(), entityType: z.string().nullable().optional(), key: z.string(), value: z.string()});

export const instructionSummaryJson = z.object({description: z.string(), id: z.string(), label: z.string()});

export const profileResponseJson = z.object({dynamic: z.array(profileEntryJson), instructions: z.array(instructionSummaryJson), preferences: z.array(profileEntryJson), selfFacts: z.array(profileEntryJson), static: z.array(profileEntryJson)});

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 a profile suitable for LLM system prompt injection
 * 
 * GET /api/v1/{context_id}/profile
 */
export const getApiApiV1ContextIdProfile = async (args: GetApiApiV1ContextIdProfileArgs, options: GetApiApiV1ContextIdProfileOptions) => {
const {baseUrl, fetch: fetchFn = fetch, apiKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/${encodeURIComponent(String(args.context_id))}/profile${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(profileResponseJson, await res.json())
};