import {z} from 'zod'

export type Cursor = string;

export type PaginationDirection = 'next' | 'prev';

export type ParseStatus = 'pending' | 'processing' | 'successful' | 'failure';

export type GetApiDocumentsV2DatasetsDatasetIdDataArgs = {dataset_id: string, cursor?: (Cursor | null) | undefined, direction?: PaginationDirection | undefined, limit?: number | undefined, status?: (ParseStatus | null) | undefined, parse_id?: (string | null) | undefined, file_name?: (string | null) | undefined, created_after?: (string | null) | undefined, created_before?: (string | null) | undefined, finished_after?: (string | null) | undefined, finished_before?: (string | null) | undefined};

export type GetApiDocumentsV2DatasetsDatasetIdDataOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const parseStatus = z.enum(["pending", "processing", "successful", "failure"]);

export const pageFragmentType = z.enum(["section_header", "title", "text", "table", "figure", "formula", "form", "key_value_region", "document_index", "list_item", "table_caption", "figure_caption", "formula_caption", "page_footer", "page_header", "page_number", "signature", "strikethrough"]);

export const pageFragmentTableCell = z.object({text: z.string(), bounding_box: z.record(z.string(), z.number())});

export const pageFragmentTable = z.object({content: z.string(), summary: z.string().nullable().optional(), cells: z.array(pageFragmentTableCell), html: z.string().nullable().optional(), markdown: z.string().nullable().optional()});

export const pageFragmentFigure = z.object({content: z.string(), summary: z.string().nullable().optional()});

export const pageFragmentListItem = z.object({content: z.string()});

export const pageFragmentSignature = z.object({content: z.string()});

export const pageFragmentTypeContent = z.union([z.string(), pageFragmentTable, pageFragmentFigure, pageFragmentListItem, pageFragmentSignature]);

export const pageFragment = z.object({fragment_type: pageFragmentType, content: pageFragmentTypeContent, reading_order: z.number().int().nullable().optional(), bbox: z.record(z.string(), z.number()).nullable().optional()});

export const page = z.object({page_number: z.number().int().gte(0), page_fragments: z.array(pageFragment).nullable().optional(), dimensions: z.array(z.number().int()).nullable().optional()});

export const chunk = z.object({content: z.string(), page_number: z.number().int().gte(0)});

export const oneOrManyUsize = z.union([z.number().int().gte(0), z.array(z.number().int().gte(0))]);

export const structuredData = z.object({data: z.unknown(), page_numbers: oneOrManyUsize, schema_name: z.string().nullable().optional()});

export const pageClass = z.object({page_class: z.string(), page_numbers: z.array(z.number().int())});

export const paginatedResultParseResult = z.object({items: z.array(z.object({parse_id: z.string().optional(), dataset_id: z.string().nullable().optional(), parsed_pages_count: z.number().int().gte(0).optional(), status: parseStatus.optional(), error: z.string().nullable().optional(), pages: z.array(page).nullable().optional(), chunks: z.array(chunk).optional(), structured_data: z.array(structuredData).nullable().optional(), page_classes: z.array(pageClass).nullable().optional(), created_at: z.string().optional(), finished_at: z.string().nullable().optional(), labels: z.record(z.string(), z.unknown()).optional()})), has_more: z.boolean(), next_cursor: z.string().nullable().optional(), prev_cursor: z.string().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
};

/**
 * GET /documents/v2/datasets/{dataset_id}/data
 */
export const getApiDocumentsV2DatasetsDatasetIdData = async (args: GetApiDocumentsV2DatasetsDatasetIdDataArgs, options?: GetApiDocumentsV2DatasetsDatasetIdDataOptions) => {
const {baseUrl = "https://api.tensorlake.ai", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.direction != null) query.append("direction", String(args.direction))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.status != null) query.append("status", String(args.status))
if (args.parse_id != null) query.append("parse_id", String(args.parse_id))
if (args.file_name != null) query.append("file_name", String(args.file_name))
if (args.created_after != null) query.append("created_after", String(args.created_after))
if (args.created_before != null) query.append("created_before", String(args.created_before))
if (args.finished_after != null) query.append("finished_after", String(args.finished_after))
if (args.finished_before != null) query.append("finished_before", String(args.finished_before))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/documents/v2/datasets/${encodeURIComponent(String(args.dataset_id))}/data${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(paginatedResultParseResult, await res.json())
};