import {z} from 'zod'

export type GetApiV1CarriersDotNumberRiskSignalsArgs = {dot_number: string, force_refresh?: boolean | undefined, include_equipment?: boolean | undefined};

export type GetApiV1CarriersDotNumberRiskSignalsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const riskSignalLevel = z.enum(["high", "medium", "clear", "unknown"]);

export const riskTriggeredCombo = z.object({key: z.string().optional(), label: z.string().optional(), severity: z.enum(["high", "medium"]).optional()});

export const riskSignalsResponse = z.object({dot_number: z.string().optional(), carrier_name: z.string().nullable().optional(), location: z.object({city: z.string().nullable().optional(), state: z.string().nullable().optional()}).optional(), risk_score: z.number().nullable().optional(), risk_level: z.string().optional(), summary: z.string().nullable().optional(), generated_at: z.string().nullable().optional(), cached: z.boolean().nullable().optional(), summary_available: z.boolean().optional(), signals: z.object({authority_for_sale: z.object({level: riskSignalLevel.optional(), subtitle: z.string().optional(), evidence_summary: z.string().nullable().optional(), mc_sale: z.record(z.string(), z.unknown()).nullable().optional()}).optional(), equipment_for_sale: z.object({level: riskSignalLevel.optional(), subtitle: z.string().optional(), match_count: z.number().int().optional(), matches: z.array(z.record(z.string(), z.unknown())).nullable().optional()}).optional(), financial_risk: z.object({level: riskSignalLevel.optional(), subtitle: z.string().optional(), confidence: z.string().nullable().optional(), issues: z.array(z.string()).optional(), details: z.string().nullable().optional(), source: z.string().nullable().optional(), source_domains: z.array(z.string()).optional()}).optional(), fraud_signals: z.object({level: riskSignalLevel.optional(), subtitle: z.string().optional(), is_chameleon: z.boolean().optional(), confidence: z.string().nullable().optional(), indicators: z.array(z.string()).optional(), details: z.string().nullable().optional(), relationship_risk_summary: z.string().nullable().optional()}).optional(), historical_patterns: z.object({level: riskSignalLevel.optional(), subtitle: z.string().optional(), triggered_combos: z.array(riskTriggeredCombo).optional(), insurance: z.record(z.string(), z.unknown()).nullable().optional(), authority: z.record(z.string(), z.unknown()).nullable().optional(), change_events: z.record(z.string(), z.unknown()).nullable().optional()}).optional(), recent_activity: z.object({level: riskSignalLevel.optional(), subtitle: z.string().optional(), negative_article_count: z.number().int().optional(), article_count: z.number().int().optional()}).optional()}).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
};

/**
 * Get aggregated carrier risk signals
 * 
 * GET /v1/carriers/{dot_number}/risk-signals
 */
export const getApiV1CarriersDotNumberRiskSignals = async (args: GetApiV1CarriersDotNumberRiskSignalsArgs, options?: GetApiV1CarriersDotNumberRiskSignalsOptions) => {
const {baseUrl = "https://api.runalphaloops.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.force_refresh != null) query.append("force_refresh", String(args.force_refresh))
if (args.include_equipment != null) query.append("include_equipment", String(args.include_equipment))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/carriers/${encodeURIComponent(String(args.dot_number))}/risk-signals${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(riskSignalsResponse, await res.json())
};