import {z} from 'zod'

export type GetApiBackupAndDrPoliciesPreviewPreviewIdArgs = {preview_id: string, page?: number | undefined, page_size?: number | undefined};

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

export const pagination = z.object({page: z.number().int(), page_size: z.number().int(), total: z.number().int(), has_next: z.boolean(), has_prev: z.boolean()});

export const previewResource = z.object({frn: z.string(), asset_type: z.string(), asset_name: z.string(), region: z.string(), provider: z.string(), service: z.string().optional(), tags_list: z.array(z.string()).optional(), created_at: z.string().nullable().optional(), discovery_type: z.enum(["scope", "dependency"]), parent_frn: z.string().nullable().optional()});

export const scopeConfig = z.object({type: z.enum(["tags", "resource_group", "asset_types", "exclude_asset_types", "selected_resources"]), value: z.array(z.string())});

export const queryFilters = z.object({account_id: z.string(), integration_id: z.string(), region: z.string().optional(), scope: z.array(scopeConfig).optional(), source_fields: z.array(z.string()).optional(), frns: z.array(z.string()).optional(), offset: z.number().int().gte(0).optional(), size: z.number().int().gte(1).lte(1000).optional()});

export const previewResponse = z.object({preview_id: z.string(), pagination: pagination, data: z.array(previewResource).optional(), query_filters: queryFilters.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 paginated preview resources
 * 
 * GET /backup-and-dr/policies/preview/{preview_id}
 */
export const getApiBackupAndDrPoliciesPreviewPreviewId = async (args: GetApiBackupAndDrPoliciesPreviewPreviewIdArgs, options?: GetApiBackupAndDrPoliciesPreviewPreviewIdOptions) => {
const {baseUrl = "https://api.firefly.ai/v2", fetch: fetchFn = fetch} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))

const url = `${baseUrl.replace(/\/+$/, '')}/backup-and-dr/policies/preview/${encodeURIComponent(String(args.preview_id))}${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(previewResponse, await res.json())
};