/*
 * Michelin North America Order-to-Cash APIs
 * These APIs will help you to do business transactions with Michelin.  <br><br><b>Authentication details:</b><br> <br><u>Option A:</u> OAuth2 Client Credentials (recommended) <br><u>Option B:</u> API Key + Basic Authentication (not recommended) <br><br>To request your access, please contact your representative. <br><br>Our services are based on the EDIWHEEL standards. <br>You can find more information on the <a href=\"https://www.ediwheel.com/\" target=\"_blank\">EDIWHEEL website</a>. 
 *
 * The version of the OpenAPI document: 1.0.1
 * 
 *
 * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
 * https://openapi-generator.tech
 * Do not edit the class manually.
 */


package com.michelin.adk.amn.auth;

import com.michelin.adk.amn.ApiException;
import com.michelin.adk.amn.Pair;

import java.net.URI;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.function.Supplier;

@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen", comments = "Generator version: 7.12.0")
public class HttpBearerAuth implements Authentication {
  private final String scheme;
  private Supplier<String> tokenSupplier;

  public HttpBearerAuth(String scheme) {
    this.scheme = scheme;
  }

  /**
   * Gets the token, which together with the scheme, will be sent as the value of the Authorization header.
   *
   * @return The bearer token
   */
  public String getBearerToken() {
    return tokenSupplier.get();
  }

  /**
   * Sets the token, which together with the scheme, will be sent as the value of the Authorization header.
   *
   * @param bearerToken The bearer token to send in the Authorization header
   */
  public void setBearerToken(String bearerToken) {
    this.tokenSupplier = () -> bearerToken;
  }

  /**
   * Sets the supplier of tokens, which together with the scheme, will be sent as the value of the Authorization header.
   *
   * @param tokenSupplier The supplier of bearer tokens to send in the Authorization header
   */
  public void setBearerToken(Supplier<String> tokenSupplier) {
    this.tokenSupplier = tokenSupplier;
  }

  @Override
  public void applyToParams(List<Pair> queryParams, Map<String, String> headerParams, Map<String, String> cookieParams,
                            String payload, String method, URI uri) throws ApiException {
    String bearerToken = Optional.ofNullable(tokenSupplier).map(Supplier::get).orElse(null);
    if (bearerToken == null) {
      return;
    }

    headerParams.put("Authorization", (scheme != null ? upperCaseBearer(scheme) + " " : "") + bearerToken);
  }

  private static String upperCaseBearer(String scheme) {
    return ("bearer".equalsIgnoreCase(scheme)) ? "Bearer" : scheme;
  }
}
