package foundation.icall.callout;

import java.util.ArrayList;
import java.util.List;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import foundation.dao.bizlogic.IJSONResponse;
import foundation.json.JArrayReader;
import foundation.json.JObjectReader;
import foundation.json.JSONReader;
import foundation.json.JType;
import okhttp3.Response;
import okhttp3.ResponseBody;

public class JSONResponse implements IJSONResponse {
	
	protected static Logger logger;
	private JSONReader reader;
	private List<String> errors;
	private String content;
	private int resultCode;

	static {
		logger = LogManager.getLogger(JSONResponse.class);
	}
	
	public JSONResponse(Response response) {
		errors = new ArrayList<String>();
		
		if (response == null) {
			errors.add("调用没有返回");
			return;
		}

		resultCode = response.code();
		
		if (!response.isSuccessful()) {
			errors.add("错误码: " + response.code());
		}
		
		try {
			ResponseBody body = response.body();
			content = body.string();
			
			JType type = JSONReader.readType(content);
			
			if (JType.Object == type) {
				reader = new JObjectReader(content);
			}
			else if (JType.Array == type) {
				reader = new JArrayReader(content);
			}
			else {
				logger.error("invalid json for JSONResponse");
				reader = null;
			}
		}
		catch (Exception e) {
			errors.add(e.getMessage());
			e.printStackTrace();
		}
	}

	public String getString(String name) {
		if (reader == null) {
			return null;
		}
		
		return reader.getRawString(name); 
	}
	
	public JArrayReader parseJArrayReader() {
		if (reader == null) {
			return null;
		}
		
		return (JArrayReader) reader; 
	}

	public boolean hasErrors() {
		return !errors.isEmpty();
	}

	public int getResultCode() {
		return resultCode;
	}

	@Override
	public String toString() {
		return content;
	}
	
}