import {z} from 'zod'

export type GetApiV3SpecificationsArgs = {vin?: string | undefined, year?: number | undefined, make?: string | undefined, model?: string | undefined, trim?: string | undefined, id?: string | undefined, include?: string | undefined, format?: ('json' | 'xml') | undefined};

export type GetApiV3SpecificationsOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV3SpecificationsResponse = z.object({input: z.record(z.string(), z.unknown()).optional(), selections: z.record(z.string(), z.unknown()).optional(), attributes: z.record(z.string(), z.unknown()).optional(), colors: z.array(z.object({category: z.string().optional(), name: z.string().optional()})).optional(), equipment: z.array(z.object({group: z.string().optional(), name: z.string().optional(), availability: z.string().optional()})).optional(), recalls: z.array(z.record(z.string(), z.unknown())).optional(), warranties: z.array(z.record(z.string(), z.unknown())).optional(), photos: z.array(z.record(z.string(), z.unknown())).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
};

/**
 * VIN Decoder API -- vehicle specifications
 * 
 * GET /v3/specifications
 */
export const getApiV3Specifications = async (args: GetApiV3SpecificationsArgs, options?: GetApiV3SpecificationsOptions) => {
const {baseUrl = "https://api.vinaudit.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.vin != null) query.append("vin", String(args.vin))
if (args.year != null) query.append("year", String(args.year))
if (args.make != null) query.append("make", String(args.make))
if (args.model != null) query.append("model", String(args.model))
if (args.trim != null) query.append("trim", String(args.trim))
if (args.id != null) query.append("id", String(args.id))
if (args.include != null) query.append("include", String(args.include))
if (args.format != null) query.append("format", String(args.format))
if (apiKey !== undefined) query.set("key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/specifications${query.size > 0 ? `?${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(getApiV3SpecificationsResponse, await res.json())
};