package com.imyeyu.lang.mapper;

import com.imyeyu.java.TimiJava;
import com.imyeyu.java.bean.Language;
import com.imyeyu.utils.Text;

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

/**
 * @author 夜雨
 * @version 2024-04-03 10:11
 */
public class LanguageMap extends AbstractLanguageMapper {

	protected final Map<String, String> map;

	/**
	 * 默认构造
	 *
	 * @param language 所属语言
	 */
	public LanguageMap(Language language) {
		super(language);
		this.map = new HashMap<>();
	}

	public void union(LanguageMap map) {
		this.map.putAll(map.map);
	}

	@Override
	public void add(String key, String value) {
		map.put(key, value);
	}

	@Override
	public boolean has(String key) {
		return map.containsKey(key);
	}

	/**
	 * 获取文本，支持二次映射，没有找到映射时返回入参键
	 * <pre>
	 *     test.msg=Hello world
	 *     mapping=@test.msg
	 *     no_mapping=\@test.msg
	 *
	 *     Multilingual.text("mapping");    // Hello world
	 *     Multilingual.text("no_mapping"); // @test.msg
	 * </pre>
	 *
	 * @param key 键
	 * @return 文本值
	 */
	@Override
	public String text(String key) {
		if (map.containsKey(key)) {
			String result = map.get(key);
			if (result.startsWith("@")) {
				// 递归映射
				return text(result.substring(1));
			} else {
				if (result.startsWith("\\@")) {
					return result.substring(1);
				} else {
					return result;
				}
			}
		} else {
			if (TimiJava.isNotEmpty(key)) {
				// 推测
				String guessKey = key;
				LinkedHashMap<String, Number> keySRL = Text.similarityRatioList(map.keySet(), key);
				if (keySRL.keySet().iterator().hasNext()) {
					String k = keySRL.keySet().iterator().next();
					Number ratio = keySRL.get(k);
					if (.7 < ratio.doubleValue()) {
						guessKey = k;
					}
				}
				System.err.printf("not found language mapping for key: [%s], it is [%s]?%n", key, guessKey);
				if (isDebugging) {
					throw new RuntimeException("not found language mapping key: " + key);
				}
			}
		}
		// 找不到映射，直接返回键
		return key;
	}

	/**
	 * 获取文本
	 *
	 * @param key 键
	 * @param def 默认值（没有找到映射值时）
	 * @return 获取结果
	 */
	@Override
	public String text(String key, String def) {
		String result = text(key);
		return key.equals(result) ? def : result;
	}

	/**
	 * 插入参数获取文本
	 *
	 * @param key     键
	 * @param argsMap 参数
	 * @return 结果
	 */
	@Override
	public String textArgs(String key, Map<String, Object> argsMap) {
		return INTERPOLATOR.inject(text(key), argsMap);
	}
}