import {z} from 'zod'

export type ResolvePathPrefetchParts = {seq: number, limit?: (number | null) | undefined};

export type ResolvePathOptions = {prefetch_files?: boolean | undefined, max_subfolders?: number | undefined, file_page_size?: number | undefined, prefetch_parts?: (ResolvePathPrefetchParts | null) | undefined};

export type ResolvePathRequest = {container_id: number, entry_path?: string | undefined, options?: (ResolvePathOptions | null) | undefined};

export type CreateApiContainerTreeResolvePathArgs = {body: ResolvePathRequest};

export type CreateApiContainerTreeResolvePathOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const treeEntry = z.object({entry_path: z.string(), entry_name: z.string().nullable().optional(), ext: z.string().nullable().optional(), size_bytes: z.number().int().nullable().optional(), mtime: z.string().nullable().optional()});

export const resolvePathFiles = z.object({items: z.array(treeEntry), total: z.number().int(), page: z.number().int(), page_size: z.number().int()});

export const resolvePathSegment = z.object({prefix: z.string(), subfolders: z.array(z.string()).optional(), subfolders_truncated: z.boolean().optional(), files: resolvePathFiles.nullable().optional()});

export const partsItem = z.object({seq: z.number().int(), size_bytes: z.number().int().nullable().optional(), offset: z.number().int().nullable().optional(), ingested_at: z.string().nullable().optional()});

export const partsWindow = z.object({start_index: z.number().int(), end_index: z.number().int()});

export const partsResponse = z.object({items: z.array(partsItem), total: z.number().int(), page: z.number().int(), page_size: z.number().int(), window: partsWindow.nullable().optional(), container_id: z.string(), entry_path: z.string()});

export const resolvePathResponse = z.object({container_id: z.string(), entry_path: z.string(), segments: z.array(resolvePathSegment), target_entry: treeEntry.nullable().optional(), target_parts: partsResponse.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
};

/**
 * Resolve a full folder chain and prefetch its contents
 * 
 * POST /container/tree/resolve_path
 */
export const createApiContainerTreeResolvePath = async (args: CreateApiContainerTreeResolvePathArgs, options?: CreateApiContainerTreeResolvePathOptions) => {
const {baseUrl = "https://api.leakradar.io", 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 (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/container/tree/resolve_path${query.size > 0 ? `?${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(resolvePathResponse, await res.json())
};