import {z} from 'zod'

export type GetApiApiV1LegalNormSlugArgs = {slug: string};

export type GetApiApiV1LegalNormSlugOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const legalNormFull = z.object({slug: z.string().optional(), title: z.string().optional(), short_name: z.string().nullable().optional(), norm_type: z.string().optional(), norm_type_label: z.string().optional(), boe_id: z.string().nullable().optional(), eli: z.string().nullable().optional(), official_url: z.string().optional(), in_force: z.boolean().optional(), repealed_by: z.string().nullable().optional(), summary: z.string().optional(), date_published: z.string().nullable().optional(), date_modified: z.string().optional(), url: z.string().optional()});

export const legalKeyArticle = z.object({article_num: z.string().optional(), label: z.string().optional(), rule: z.string().optional(), has_text: z.boolean().optional(), url: z.string().optional(), api_url: z.string().optional()});

export const legalRegulatedAct = z.object({act_type: z.string().optional(), label: z.string().optional(), articles: z.string().optional(), microtext: z.string().optional(), url: z.string().optional()});

export const legalCitableFact = z.object({statement: z.string().optional(), source: z.string().optional(), source_url: z.string().optional(), date: z.string().optional(), verify_url: z.string().optional()}).nullable();

export const legalNormResponse = z.object({norm: legalNormFull, key_articles: z.array(legalKeyArticle).optional(), regulated_acts: z.array(legalRegulatedAct).optional(), citable_fact: legalCitableFact.optional(), license: z.string().optional(), license_url: z.string().optional(), attribution: z.string().optional(), disclaimer: z.string().optional(), generated_at: 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
};

/**
 * Detail of a single mercantile-law norm (with act↔norm bridge)
 * 
 * GET /api/v1/legal/norm/{slug}
 * 
 * Also accepts auth: bearerAuth
 */
export const getApiApiV1LegalNormSlug = async (args: GetApiApiV1LegalNormSlugArgs, options?: GetApiApiV1LegalNormSlugOptions) => {
const {baseUrl = "https://openmercantil.es", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (apiKey !== undefined) headers.set("X-API-Key", apiKey)

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