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package io.irain.reactor.logging.autoconfigure;

import io.irain.reactor.logging.utils.LoggingUtil;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.env.EnvironmentPostProcessor;
import org.springframework.core.Ordered;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.MapPropertySource;
import org.springframework.stereotype.Component;

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

/**
 * logging 日志初始化
 *
 * @author youta
 */
@Component
public class LoggingInitializer implements EnvironmentPostProcessor, Ordered {

	/**
	 * 用于 spring boot admin 中展示日志
	 */
	public static final String LOGGING_FILE_PATH_KEY = "logging.file.path";

	/**
	 * 用于 spring boot admin 中展示日志
	 */
	public static final String LOGGING_FILE_NAME_KEY = "logging.file.name";

	/**
	 * 用于 spring boot admin 中展示日志
	 */
	public static final String SHORE_LOGGING_PROPERTY_SOURCE_NAME = "shoreLoggingPropertySource";

	@Override
	public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
		// 读取系统配置的日志目录，默认为项目下 logs
		String logBase = environment.getProperty(LOGGING_FILE_PATH_KEY, LoggingUtil.DEFAULT_LOG_DIR);
		// 用于 spring boot admin 中展示日志
		if (!environment.containsProperty(LOGGING_FILE_NAME_KEY)) {
			Map map = new HashMap<>(2);
			map.put(LOGGING_FILE_NAME_KEY, logBase + "/${spring.application.name}/" + LoggingUtil.LOG_FILE_ALL);
			MapPropertySource propertySource = new MapPropertySource(SHORE_LOGGING_PROPERTY_SOURCE_NAME, map);
			environment.getPropertySources().addLast(propertySource);
		}
	}

	@Override
	public int getOrder() {
		return Ordered.LOWEST_PRECEDENCE;
	}

}