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/*
 * Copyright 2018-2024 guerlab.net and other contributors.
 *
 * Licensed under the GNU LESSER GENERAL PUBLIC LICENSE, Version 3 (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.gnu.org/licenses/lgpl-3.0.html
 *
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.guerlab.cloud.commons.i18n;

import java.time.Duration;

import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfigureOrder;
import org.springframework.boot.autoconfigure.context.MessageSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.context.MessageSourceProperties;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.core.Ordered;
import org.springframework.util.StringUtils;

/**
 * 消息源自动配置.
 *
 * @author guer
 */
@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE)
@EnableConfigurationProperties
@AutoConfiguration(before = MessageSourceAutoConfiguration.class)
public class MessageSourceAutoConfigure {

	/**
	 * 创建MessageSourceProperties.
	 *
	 * @return MessageSourceProperties
	 */
	@Bean
	@ConfigurationProperties(prefix = "spring.messages")
	public MessageSourceProperties messageSourceProperties() {
		return new MessageSourceProperties();
	}

	/**
	 * 创建MessageSource.
	 *
	 * @param properties MessageSourceProperties
	 * @return MessageSource
	 */
	@Bean(name = AbstractApplicationContext.MESSAGE_SOURCE_BEAN_NAME)
	public MessageSource messageSource(MessageSourceProperties properties) {
		ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
		if (StringUtils.hasText(properties.getBasename())) {
			messageSource.setBasenames(StringUtils.commaDelimitedListToStringArray(
					StringUtils.trimAllWhitespace(properties.getBasename())));
		}
		if (properties.getEncoding() != null) {
			messageSource.setDefaultEncoding(properties.getEncoding().name());
		}
		messageSource.setFallbackToSystemLocale(properties.isFallbackToSystemLocale());
		Duration cacheDuration = properties.getCacheDuration();
		if (cacheDuration != null) {
			messageSource.setCacheMillis(cacheDuration.toMillis());
		}
		messageSource.setAlwaysUseMessageFormat(properties.isAlwaysUseMessageFormat());
		messageSource.setUseCodeAsDefaultMessage(properties.isUseCodeAsDefaultMessage());
		return messageSource;
	}
}