import {z} from 'zod'

export type Scope = 'Private' | 'Shared' | 'Public';

export type EdgeSource = 'Customer' | 'Media' | 'Customs' | 'PrewavePrediction';

export type TargetSuppliersFilter = {query?: (string | null) | undefined, collectionIds: Array<number>, commodityIds: Array<number>, targetTypeIds: Array<number>, tiers: Array<number>, scopes: Array<Scope>, source?: (EdgeSource | null) | undefined, countries?: Array<number> | undefined, hscodes: Array<string>, lastShipment?: (string | null) | undefined, onlyDirectlySuppliers: boolean, countryIds: Array<number>};

export type GetApiPublicV2SuppliersSystemIdTargetIdSupplierGraphArgs = {systemId: string, targetId: string, tierLevel?: number | undefined, commodityIds?: Array<number> | undefined, filter: TargetSuppliersFilter, commodityTreeId?: number | undefined, fetchParents?: boolean | undefined};

export type GetApiPublicV2SuppliersSystemIdTargetIdSupplierGraphOptions = {baseUrl?: string | undefined, TokenAuthentication?: string | undefined, fetch?: typeof fetch | undefined};

export const publicTargetInfoDTO = z.object({tier: z.number().int().nullable().optional(), path: z.array(z.number().int()), collectionLevel: z.number().int().nullable().optional(), collectionPath: z.array(z.number().int()), collectionPaths: z.array(z.array(z.number().int())).nullable().optional()});

export const publicHSCode = z.object({code: z.string(), nShipments: z.number().int().nullable().optional(), nshipments: z.number().int().optional()});

export const publicEdgeInfo = z.object({hsCodes: z.array(publicHSCode), probability: z.number().nullable().optional()});

export const publicTreeTargetV2: z.ZodType<PublicTreeTargetV2> = z.object({target: z.number().int(), suppliers: z.array(z.lazy(() => publicTreeTargetV2)), targetInfo: publicTargetInfoDTO, edgeSource: z.string(), edgeInfo: publicEdgeInfo.nullable().optional(), merged_targets: z.array(z.number().int()).optional()});

export const getApiPublicV2SuppliersSystemIdTargetIdSupplierGraphResponse = z.array(publicTreeTargetV2);

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 a tree-structure of suppliers of the given target
 * 
 * GET /public/v2/suppliers/{systemId}/{targetId}/supplier-graph
 */
export const getApiPublicV2SuppliersSystemIdTargetIdSupplierGraph = async (args: GetApiPublicV2SuppliersSystemIdTargetIdSupplierGraphArgs, options?: GetApiPublicV2SuppliersSystemIdTargetIdSupplierGraphOptions) => {
const {baseUrl = "https://api.prewave.com", fetch: fetchFn = fetch, TokenAuthentication} = options ?? {}

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

if (args.tierLevel != null) query.append("tierLevel", String(args.tierLevel))
for (const item of args.commodityIds ?? []) query.append("commodityIds", String(item))
if (args.filter != null) query.append("filter", JSON.stringify(args.filter))
if (args.commodityTreeId != null) query.append("commodityTreeId", String(args.commodityTreeId))
if (args.fetchParents != null) query.append("fetchParents", String(args.fetchParents))
if (TokenAuthentication !== undefined) headers.set("X-Auth-Token", TokenAuthentication)

const url = `${baseUrl.replace(/\/+$/, '')}/public/v2/suppliers/${encodeURIComponent(String(args.systemId))}/${encodeURIComponent(String(args.targetId))}/supplier-graph${query.size > 0 ? `?${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(getApiPublicV2SuppliersSystemIdTargetIdSupplierGraphResponse, await res.json())
};