import {z} from 'zod'

export type GetApiApiV1ClientCharacterRivalsArgs = {access_key?: string | undefined, region: 'us' | 'eu' | 'tw' | 'kr' | 'cn', realm: string, name: string, scope?: ('realm' | 'region' | 'world') | undefined, specId?: number | undefined};

export type GetApiApiV1ClientCharacterRivalsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const scope = z.enum(["realm", "region", "world"]);

export const characterRivalEntry = z.object({rank: z.number().int(), name: z.string(), realm: z.string(), score: z.number(), scoreColor: z.string().nullable(), classId: z.number().int().nullable(), specId: z.number().int().nullable(), isSelf: z.boolean()});

export const entries = z.array(characterRivalEntry);

export const rivals = z.object({scope: scope, specId: z.number().int().nullable(), entries: entries}).nullable();

export const characterRivalsResponse = z.object({rivals: rivals});

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
};

/**
 * Rivals leaderboard window (self +/- 2) around a character. Defaults to the class leaderboard; pass specId for the spec leaderboard.
 * 
 * GET /api/v1/client/character-rivals
 */
export const getApiApiV1ClientCharacterRivals = async (args: GetApiApiV1ClientCharacterRivalsArgs, options?: GetApiApiV1ClientCharacterRivalsOptions) => {
const {baseUrl = "http://raider.io", fetch: fetchFn = fetch} = options ?? {}

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

if (args.access_key != null) query.append("access_key", String(args.access_key))
if (args.region != null) query.append("region", String(args.region))
if (args.realm != null) query.append("realm", String(args.realm))
if (args.name != null) query.append("name", String(args.name))
if (args.scope != null) query.append("scope", String(args.scope))
if (args.specId != null) query.append("specId", String(args.specId))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/client/character-rivals${query.size > 0 ? `?${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(characterRivalsResponse, await res.json())
};