import {z} from 'zod'

export type SynthesisLogCreate = {session_id: string, entry_type: 'prompt' | 'seed_generation' | 'seed_feedback' | 'prompt_update' | 'expansion' | 'finalization', content?: {[key: string]: unknown} | undefined, dataset_id?: (string | null) | undefined, project_id?: (string | null) | undefined};

export type CreateApiV1SynthesisLogArgs = {body: SynthesisLogCreate};

export type CreateApiV1SynthesisLogOptions = {baseUrl: string, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const synthesisLogEntry = z.object({id: z.string(), user_id: z.string(), dataset_id: z.string().nullable().optional(), project_id: z.string().nullable().optional(), session_id: z.string(), entry_type: z.enum(["prompt", "seed_generation", "seed_feedback", "prompt_update", "expansion", "finalization"]), content: z.record(z.string(), z.unknown()), created_at: z.string()});

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 Log Entry
 * 
 * POST /v1/synthesis-log
 * 
 * Also accepts auth: BearerAuth
 */
export const createApiV1SynthesisLog = async (args: CreateApiV1SynthesisLogArgs, options: CreateApiV1SynthesisLogOptions) => {
const {baseUrl, fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/synthesis-log${query.size > 0 ? `?${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(synthesisLogEntry, await res.json())
};