import {z} from 'zod'

export type GetApiApiV1CompanySlugScoreArgs = {slug: string};

export type GetApiApiV1CompanySlugScoreOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const jsonValue: z.ZodType<JsonValue> = z.union([z.string(), z.number(), z.boolean(), z.array(z.lazy(() => jsonValue)), z.record(z.string(), z.lazy(() => jsonValue))]).nullable();

export const companyActivityScoreResponse = z.object({slug: z.string(), score: z.number().gte(0).lte(100), breakdown: z.record(z.string(), z.object({value: z.number(), max: z.number(), desc: z.string()})), methodology: z.string().nullable().optional()}).and(z.record(z.string(), jsonValue));

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
};

/**
 * Documentary completeness score (no risk/credit scoring)
 * 
 * GET /api/v1/company/{slug}/score
 */
export const getApiApiV1CompanySlugScore = async (args: GetApiApiV1CompanySlugScoreArgs, options?: GetApiApiV1CompanySlugScoreOptions) => {
const {baseUrl = "https://openmercantil.es", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/company/${encodeURIComponent(String(args.slug))}/score${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(companyActivityScoreResponse, await res.json())
};