/**
 * <div style={{backgroundColor: "#000", display: "flex", justifyContent: "space-between", color: "#fff", padding: 16}}>
 * <span>Built-in <b>Battle.net</b> integration.</span>
 * <a href="https://Battle.net/">
 *   <img style={{display: "block"}} src="https://authjs.dev/img/providers/battlenet.svg" height="48" width="48"/>
 * </a>
 * </div>
 *
 * @module providers/battlenet
 */
import type { OAuthConfig, OAuthUserConfig } from "./index.js"

export interface BattleNetProfile extends Record<string, any> {
  sub: string
  battle_tag: string
}

/** See the [available regions](https://develop.battle.net/documentation/guides/regionality-and-apis) */
export type BattleNetIssuer =
  | "https://oauth.battle.net"
  | "https://oauth.battlenet.com.cn"
  | "https://www.battlenet.com.cn/oauth"
  | `https://${"us" | "eu" | "kr" | "tw"}.battle.net/oauth`

/**
 * Add Battle.net login to your page.
 *
 * ### Setup
 *
 * #### Callback URL
 * ```
 * https://example.com/api/auth/callback/battlenet
 * ```
 *
 * #### Configuration
 *```ts
 * import { Auth } from "@auth/core"
 * import BattleNet from "@auth/core/providers/battlenet"
 *
 * const request = new Request(origin)
 * const response = await Auth(request, {
 *   providers: [
 *     BattleNet({
 *       clientId: BATTLENET_CLIENT_ID,
 *       clientSecret: BATTLENET_CLIENT_SECRET,
 *       issuer: BATTLENET_ISSUER,
 *     }),
 *   ],
 * })
 * ```
 * issuer must be one of these values, based on the available regions:
 * ```
 * type BattleNetIssuer =
 *   | "https://oauth.battle.net"
 *   | "https://oauth.battlenet.com.cn"
 *   | "https://www.battlenet.com.cn/oauth"
 *   | "https://us.battle.net/oauth"
 *   | "https://eu.battle.net/oauth"
 *   | "https://kr.battle.net/oauth"
 *   | "https://tw.battle.net/oauth"
 * ```
 *
 * ### Resources
 *
 *  - [BattleNet OAuth documentation](https://develop.battle.net/documentation/guides/using-oauth)
 *
 * ### Notes
 *
 * By default, Auth.js assumes that the BattleNet provider is
 * based on the [OAuth 2](https://www.rfc-editor.org/rfc/rfc6749.html) specification.
 *
 * :::tip
 *
 * The BattleNet provider comes with a [default configuration](https://github.com/nextauthjs/next-auth/blob/main/packages/core/src/providers/battlenet.ts).
 * To override the defaults for your use case, check out [customizing a built-in OAuth provider](https://authjs.dev/guides/configuring-oauth-providers).
 *
 * :::
 *
 * :::info **Disclaimer**
 *
 * If you think you found a bug in the default configuration, you can [open an issue](https://authjs.dev/new/provider-issue).
 *
 * Auth.js strictly adheres to the specification and it cannot take responsibility for any deviation from
 * the spec by the provider. You can open an issue, but if the problem is non-compliance with the spec,
 * we might not pursue a resolution. You can ask for more help in [Discussions](https://authjs.dev/new/github-discussions).
 *
 * :::
 */
export default function BattleNet<P extends BattleNetProfile>(
  options: OAuthUserConfig<P> & { issuer: BattleNetIssuer }
): OAuthConfig<P> {
  return {
    id: "battlenet",
    name: "Battle.net",
    type: "oidc",
    profile(profile) {
      return {
        id: profile.sub,
        name: profile.battle_tag,
        email: null,
        image: null,
      }
    },
    style: { bg: "#148eff", text: "#fff" },
    options,
  }
}