import {z} from 'zod'

export type SplitInstanceKey = {description: string, name: string, required?: boolean | undefined};

export type SplitSubclass = {description?: string | undefined, id: string, label: string};

export type SplitCategory = {description?: string | undefined, id: string, instance_key?: (SplitInstanceKey | null) | undefined, label: string, subclasses?: Array<SplitSubclass> | undefined};

export type WorkspaceFileSource = {file_id: string, type?: 'workspace_file' | undefined, workspace_id: string};

export type SplitOutputOptions = {include_content?: boolean | undefined, materialize_files?: boolean | undefined};

export type PageRange = {end: number, start: number};

export type DocumentSplitRequest = {classes: Array<SplitCategory>, corpus_sources?: Array<WorkspaceFileSource> | undefined, name?: (string | null) | undefined, output?: SplitOutputOptions | undefined, overlap_policy?: ('exclusive' | 'shared_boundary_page') | undefined, page_ranges?: (Array<PageRange> | null) | undefined, parse_mode?: ('low' | 'medium' | 'high') | undefined, project_id?: (string | null) | undefined, quality?: ('auto' | 'fast' | 'accurate') | undefined, source: Record<string, never>, split_rules?: (string | null) | undefined, unknown_policy?: ('include' | 'force' | 'error') | undefined};

export type CreateApiV1DocumentsSplitArgs = {'Idempotency-Key'?: string | undefined, wait_seconds?: number | undefined, body: DocumentSplitRequest};

export type CreateApiV1DocumentsSplitOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const documentTimingBreakdown = z.object({preparation_ms: z.number().int().gte(0).nullable(), queue_ms: z.number().int().gte(0).nullable(), ndi_processing_ms: z.number().int().gte(0).nullable(), result_preparation_ms: z.number().int().gte(0).nullable(), delivery_wait_ms: z.number().int().gte(0).nullable(), document_finalization_ms: z.number().int().gte(0).nullable()});

export const documentTiming = z.object({received_at: z.string(), observed_at: z.string(), completed_at: z.string().nullable(), elapsed_ms: z.number().int().nullable(), total_ms: z.number().int().nullable(), first_response_ms: z.number().int().nullable(), breakdown: documentTimingBreakdown});

export const documentCostLine = z.object({operation: z.enum(["parse", "split", "classify", "extract", "ground"]), quantity: z.number().int().gte(0), unit: z.enum(["page", "target"]), execution: z.enum(["fresh", "reused"]), unit_price_usd: z.string(), amount_usd: z.string(), reuse_reason: z.string().nullable()});

export const documentCost = z.object({currency: z.literal("USD"), pricing_version: z.string(), total_usd: z.string(), lines: z.array(documentCostLine)});

export const documentJob = z.object({job_id: z.string(), kind: z.enum(["parse", "split", "classify", "extract", "ground"]), status: z.enum(["queued", "running", "succeeded", "failed", "cancelled"]), result: z.unknown(), credits: z.number().int().nullable().optional(), usage_final: z.boolean().optional(), timing: documentTiming.optional(), cost: documentCost.nullable().optional()}).and(z.record(z.string(), z.unknown()));

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
};

/**
 * Split a document
 * 
 * POST /v1/documents/split
 */
export const createApiV1DocumentsSplit = async (args: CreateApiV1DocumentsSplitArgs, options?: CreateApiV1DocumentsSplitOptions) => {
const {baseUrl = "https://console.nace.ai", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (args.wait_seconds != null) query.append("wait_seconds", String(args.wait_seconds))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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