/*
 * Copyright 2012-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.boot.autoconfigure.ldap;

import java.util.HashMap;
import java.util.Map;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.core.env.Environment;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;

/**
 * Configuration properties for LDAP.
 *
 * @author Eddú Meléndez
 * @since 1.5.0
 */
@ConfigurationProperties(prefix = "spring.ldap")
public class LdapProperties {

	private static final int DEFAULT_PORT = 389;

	/**
	 * LDAP URLs of the server.
	 */
	private String[] urls;

	/**
	 * Base suffix from which all operations should originate.
	 */
	private String base;

	/**
	 * Login username of the server.
	 */
	private String username;

	/**
	 * Login password of the server.
	 */
	private String password;

	/**
	 * Whether read-only operations should use an anonymous environment. Disabled by
	 * default unless a username is set.
	 */
	private Boolean anonymousReadOnly;

	/**
	 * LDAP specification settings.
	 */
	private final Map<String, String> baseEnvironment = new HashMap<>();

	public String[] getUrls() {
		return this.urls;
	}

	public void setUrls(String[] urls) {
		this.urls = urls;
	}

	public String getBase() {
		return this.base;
	}

	public void setBase(String base) {
		this.base = base;
	}

	public String getUsername() {
		return this.username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword() {
		return this.password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public Boolean getAnonymousReadOnly() {
		return this.anonymousReadOnly;
	}

	public void setAnonymousReadOnly(Boolean anonymousReadOnly) {
		this.anonymousReadOnly = anonymousReadOnly;
	}

	public Map<String, String> getBaseEnvironment() {
		return this.baseEnvironment;
	}

	public String[] determineUrls(Environment environment) {
		if (ObjectUtils.isEmpty(this.urls)) {
			return new String[] { "ldap://localhost:" + determinePort(environment) };
		}
		return this.urls;
	}

	private int determinePort(Environment environment) {
		Assert.notNull(environment, "Environment must not be null");
		String localPort = environment.getProperty("local.ldap.port");
		if (localPort != null) {
			return Integer.valueOf(localPort);
		}
		return DEFAULT_PORT;
	}

}
