import {z} from 'zod'

export type DispatchQuoteInput = {providerId: string, totalPriceCents: number};

export type DispatchRuleContextInput = {packageValueCents?: (number | null) | undefined, itemsCount?: (number | null) | undefined, pickupTime?: (string | null) | undefined, dropoffTime?: (string | null) | undefined, drivingDistance?: (number | null) | undefined, tags?: (Array<string> | null) | undefined, metadata?: ({[key: string]: unknown} | null) | undefined, pickupStoreLocationId?: (string | null) | undefined, dropoffStoreLocationId?: (string | null) | undefined, packageHeight?: (number | null) | undefined, packageWidth?: (number | null) | undefined, packageDepth?: (number | null) | undefined, packageWeight?: (number | null) | undefined, totalWeight?: (number | null) | undefined, packageRequirements?: (Array<string> | null) | undefined, packageDeliveryMode?: (string | null) | undefined, packageTipCents?: (number | null) | undefined, numberOfPackages?: number | undefined, isBatch?: boolean | undefined};

export type EvaluateDispatchInput = {pickupAddress?: (string | null) | undefined, pickupLat?: (number | null) | undefined, pickupLng?: (number | null) | undefined, pickupAddressCity?: (string | null) | undefined, pickupAddressState?: (string | null) | undefined, pickupAddressZip?: (string | null) | undefined, pickupAddressCountry?: (string | null) | undefined, pickupBusinessName?: (string | null) | undefined, dropoffAddress?: (string | null) | undefined, dropoffLat?: (number | null) | undefined, dropoffLng?: (number | null) | undefined, dropoffAddressCity?: (string | null) | undefined, dropoffAddressState?: (string | null) | undefined, dropoffAddressZip?: (string | null) | undefined, dropoffAddressCountry?: (string | null) | undefined, dropoffBusinessName?: (string | null) | undefined, quotes: Array<DispatchQuoteInput>, context?: (DispatchRuleContextInput | null) | undefined, optionsGroupId?: (string | null) | undefined};

export type CreateApiV1DispatchEvaluateArgs = {body: EvaluateDispatchInput};

export type CreateApiV1DispatchEvaluateOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const dispatchRuleResult = z.object({matchedRuleId: z.string().nullable().optional(), matchedRuleLabel: z.string().nullable().optional(), matchedRuleCondition: z.string().nullable().optional(), optionsGroupId: z.string().nullable().optional(), optionsGroupLabel: z.string().nullable().optional()});

export const rankedProvider = z.object({providerId: z.string(), parentProviderId: z.string(), providerName: z.string(), probability: z.number(), rank: z.number().int()});

export const evaluateDispatchOutput = z.object({dispatchRule: dispatchRuleResult.nullable().optional(), rankedProviders: z.array(rankedProvider), strategy: z.string().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
};

/**
 * Evaluate dynamic dispatch
 * 
 * POST /v1/dispatch/evaluate
 */
export const createApiV1DispatchEvaluate = async (args: CreateApiV1DispatchEvaluateArgs, options?: CreateApiV1DispatchEvaluateOptions) => {
const {baseUrl = "https://api.sandbox.usenash.com", fetch: fetchFn = fetch} = options ?? {}

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

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