import {z} from 'zod'

export type Region = 'JP' | 'NA' | 'CN' | 'KR' | 'TW';

export type Language = 'jp' | 'en';

export type GetApiBasicRegionMCMcIdArgs = {region: Region, mc_id: number, lang?: (Language | null) | undefined};

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

export const mCAssets = z.object({male: z.string().min(1).max(2083), female: z.string().min(1).max(2083)});

export const basicMysticCode = z.object({id: z.number().int(), name: z.string(), item: mCAssets});

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 Mystic Code data
 * 
 * GET /basic/{region}/MC/{mc_id}
 */
export const getApiBasicRegionMCMcId = async (args: GetApiBasicRegionMCMcIdArgs, options?: GetApiBasicRegionMCMcIdOptions) => {
const {baseUrl = "https://api.atlasacademy.io", fetch: fetchFn = fetch} = options ?? {}

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

if (args.lang != null) query.append("lang", String(args.lang))

const url = `${baseUrl.replace(/\/+$/, '')}/basic/${encodeURIComponent(String(args.region))}/MC/${encodeURIComponent(String(args.mc_id))}${query.size > 0 ? `?${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(basicMysticCode, await res.json())
};