import {z} from 'zod'

export type GetApiAnthropicV1FilesArgs = {'x-model-provider'?: string | undefined, limit?: number | undefined, after_id?: string | undefined};

export type GetApiAnthropicV1FilesOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiAnthropicV1FilesResponse = z.object({data: z.array(z.object({id: z.string().optional(), type: z.string().optional(), filename: z.string().optional(), mime_type: z.string().optional(), size_bytes: z.number().int().optional(), created_at: z.string().optional(), downloadable: z.boolean().optional()})).optional(), has_more: z.boolean().optional(), first_id: z.string().optional(), last_id: z.string().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
};

/**
 * List files (Anthropic format)
 * 
 * GET /anthropic/v1/files
 * 
 * Also accepts auth: BasicAuth, VirtualKeyAuth, ApiKeyAuth
 */
export const getApiAnthropicV1Files = async (args: GetApiAnthropicV1FilesArgs, options?: GetApiAnthropicV1FilesOptions) => {
const {baseUrl = "http://localhost:8080", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args['x-model-provider'] != null) headers.set("x-model-provider", String(args['x-model-provider']))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.after_id != null) query.append("after_id", String(args.after_id))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/anthropic/v1/files${query.size > 0 ? `?${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(getApiAnthropicV1FilesResponse, await res.json())
};