package fr.doap.jdb.impl;

import fr.doap.slog.*;

import java.util.*;

public class ClassInfos {

	static public Map<String, Object> getProps(Object aObject) {
		Map<String, Object> lMap = new HashMap<>();
		ClassInfos lCI = get(aObject.getClass());
		if (lCI != null) lCI.mPropsGetterSetter.forEach((aKey, aGS) -> lMap.put(aKey, aGS.get(aObject)));
		return lMap;
	}
	
	static public void setProps(Map<String, Object> aMap, Object aObject) {
		ClassInfos lCI = get(aObject.getClass());
		if (lCI != null) lCI.mPropsGetterSetter.forEach((aKey, aGS) -> aGS.set(aObject, aMap.get(aKey)));
	}
	
	static public ClassInfos get(Class<?> aClass) {
		if ((aClass != null)&&(aClass != Object.class)) {
			ClassInfos lCI = sInfosMap.get(aClass);
			if (lCI == null) lCI = new ClassInfos(aClass);
			return lCI;
		}
		return null;
	}
	
	ClassInfos(Class<?> aClass) {
		try {
			sInfosMap.put(aClass, this);
			ClassAnalyzer lCA = null;
			for (ClassAnalyzer iCA: sClassAnalyzers) {
				if (iCA.isApplicable(aClass)) {
					lCA = iCA;
					break;
				}
			}
			if (lCA != null) {
				if (lCA.processSuperclass(aClass)) {
					Class<?> lSuper = aClass.getSuperclass();
					if ((lSuper != null)&&(lSuper != Object.class)) {
						ClassInfos lCI = get(lSuper);
						mPropsGetterSetter.putAll(lCI.mPropsGetterSetter);
					}
				}
				lCA.analyze(aClass, mPropsGetterSetter);
			}
		} catch (Exception aE) { L.t(aE); }
	}

	public Map<String, PropGetterSetter> getGS() { return mPropsGetterSetter; }
	
	private Map<String, PropGetterSetter>	mPropsGetterSetter = new HashMap<>();
	
	static Map<Class<?>, ClassInfos>		sInfosMap = new HashMap<>();
	static List<ClassAnalyzer>				sClassAnalyzers = new ArrayList<>(List.of(new ClassAnalyzer.CollectionCA(), new ClassAnalyzer.FieldCA()));
}