import {z} from 'zod'

export type NvsMatchSuggestionsRequest = {vendorId?: string | undefined};

export type CreateApiIntegrationsNvsMatchSuggestionsArgs = {body: NvsMatchSuggestionsRequest};

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

export const nvsProductDto = z.object({code: z.string().optional(), description: z.string().optional(), packSize: z.string().optional(), packCount: z.union([z.number().int(), z.string()]).nullable().optional(), measureAmount: z.union([z.number(), z.string()]).nullable().optional(), measureUnit: z.string().nullable().optional(), packCostExVat: z.union([z.number(), z.string()]).nullable().optional(), vatCode: z.string().nullable().optional(), controlledDrug: z.boolean().optional(), inStock: z.boolean().nullable().optional()});

export const nvsMatchCandidateDto = z.object({product: nvsProductDto.optional(), score: z.union([z.number(), z.string()]).optional(), reason: z.string().optional(), suggestedUnitsPerPack: z.union([z.number(), z.string()]).nullable().optional()});

export const nvsMatchSuggestionDto = z.object({inventoryItemId: z.string().optional(), itemName: z.string().optional(), itemUnitsPerContainer: z.union([z.number(), z.string()]).nullable().optional(), candidates: z.array(nvsMatchCandidateDto).optional()});

export const nvsMatchSuggestionsResponse = z.object({suggestions: z.array(nvsMatchSuggestionDto).optional(), unmatchedCount: z.union([z.number().int(), z.string()]).optional(), alreadyLinkedCount: z.union([z.number().int(), 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
};

/**
 * Suggested NVS products for every active item not yet linked under this vendor. Links nothing.
 * 
 * POST /integrations/nvs/match-suggestions
 */
export const createApiIntegrationsNvsMatchSuggestions = async (args: CreateApiIntegrationsNvsMatchSuggestionsArgs, options?: CreateApiIntegrationsNvsMatchSuggestionsOptions) => {
const {baseUrl = "https://api.clinicos.vet/backend/business", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/integrations/nvs/match-suggestions${query.size > 0 ? `?${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(nvsMatchSuggestionsResponse, await res.json())
};