package com.firefly.utils.log;

import com.firefly.utils.StringUtils;
import com.firefly.utils.function.Action1;
import com.firefly.utils.log.file.FileLog;

import java.io.IOException;
import java.io.InputStream;
import java.util.Map.Entry;
import java.util.Properties;

public class PropertiesLogConfigParser extends AbstractLogConfigParser {

    @Override
    public boolean parse(Action1<FileLog> action) {
        try {
            Properties properties = loadLogConfigurationFile();
            if (properties != null) {
                parseProperties(properties, action);
                return true;
            } else {
                return false;
            }
        } catch (IOException e) {
            System.err.println("parse exception, " + e.getMessage());
            return false;
        }
    }

    private Properties loadLogConfigurationFile() throws IOException {
        Properties properties = new Properties();
        try (InputStream input = LogFactory.class.getClassLoader().getResourceAsStream(DEFAULT_PROPERTIES_CONFIG_FILE_NAME)) {
            if (input == null) {
                return null;
            }
            properties.load(input);
        }
        return properties;
    }

    private void parseProperties(Properties properties, Action1<FileLog> fileLog) {
        for (Entry<Object, Object> entry : properties.entrySet()) {
            String name = (String) entry.getKey();
            String value = (String) entry.getValue();

            String[] strs = StringUtils.split(value, ',');

            switch (strs.length) {
                case 1:
                    fileLog.call(createLog(name, strs[0], null, false, DEFAULT_MAX_FILE_SIZE, DEFAULT_CHARSET));
                    break;
                case 2:
                    if ("console".equalsIgnoreCase(strs[1])) {
                        fileLog.call(createLog(name, strs[0], null, true, DEFAULT_MAX_FILE_SIZE, DEFAULT_CHARSET));
                    } else {
                        fileLog.call(createLog(name, strs[0], strs[1], false, DEFAULT_MAX_FILE_SIZE, DEFAULT_CHARSET));
                    }
                    break;
                case 3:
                    fileLog.call(createLog(name, strs[0], strs[1], "console".equalsIgnoreCase(strs[2]), DEFAULT_MAX_FILE_SIZE, DEFAULT_CHARSET));
                    break;
                default:
                    System.err.println("The log " + name + " configuration format is illegal. It will use default log configuration");
                    fileLog.call(createLog(name, DEFAULT_LOG_LEVEL, null, false, DEFAULT_MAX_FILE_SIZE, DEFAULT_CHARSET));
                    break;
            }
        }
    }

}