package com.mattrixwv.cipherstream.aspect;


import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.MDC;
import org.springframework.context.annotation.Configuration;

import com.fasterxml.jackson.databind.node.ObjectNode;

import lombok.extern.slf4j.Slf4j;


@Slf4j
@Aspect
@Configuration
public class CipherStreamLoggingAspect{
	public static final String CIPHER_NAME_LOGGING  = "cipher";


	@Pointcut("@annotation(org.springframework.web.bind.annotation.RequestMapping) || @annotation(org.springframework.web.bind.annotation.GetMapping) || @annotation(org.springframework.web.bind.annotation.PutMapping) || @annotation(org.springframework.web.bind.annotation.PostMapping) || @annotation(org.springframework.web.bind.annotation.DeleteMapping)")
	public void mappedFunction(){
		//Intentionally blank
	}

	@Pointcut("@annotation(org.springframework.web.bind.annotation.PostMapping)")
	public void postFunction(){
		//Intentionally blank
	}

	@Pointcut("execution(* com.mattrixwv.cipherstream.controller..*(..))")
	public void cipherMethod(){
		//Intentionally blank
	}

	@AfterReturning(pointcut = "cipherMethod() && postFunction()", returning = "returnedJson")
	public void getCipherInfo(ObjectNode returnedJson){
		//Extract JSON to MDC
		returnedJson.fields().forEachRemaining(entry -> {
			if(entry.getValue().isTextual()){
				MDC.put(entry.getKey(), entry.getValue().asText());
			}
			else{
				MDC.put(entry.getKey(), entry.getValue().toString());
			}
		});

		//Print a log
		log.info("CipherStream log");
	}
}