#include "macros.h"
#include "lowreceiver.h"

void LowReceiver::manage_cbcast(Message * mesg) {
	static std::list<Message *> fifo_undelivered;
	static std::list<Message *> fifo_deliverable;

	std::list<Message *>::iterator iter;
	//
	// identifiant = horloge + id_site_emeteur
	bool iAmTheEmitter = false;

	bool canAdjust = false;
	if (mesg->getStamp().getIndex() == _group.getIndex()){
		iAmTheEmitter = true;
	}

	if (iAmTheEmitter){
		printf("LowReceiver::manage_cbcast - Received my own message -- delivering automatically\n");
		// ajouter dans la file des message à délivrer...
		fifo_deliverable.push_back(mesg);

	} else {
		printf("LowReceiver::manage_cbcast - Received a message from a friend\n");

		canAdjust == _clock.adjust(mesg->getStamp());
		printf("LowReceiver::manage_cbcast - Can Adjust %d\n",canAdjust);

		// si l'horloge est ajustable (donc les contraintes FIFO et reception)
		// alors on délivre directement
		if (canAdjust){
			fifo_deliverable.push_back(mesg);
		}
	}
	
	bool foundDeliveredMsg = false;
	// boucler sur la file des message non-délivrés, tant qu'on trouve un message à délivrer...
	// et ajouter les délivrables à la FIFO
	do {
		printf("LowReceiver::manage_cbcast - looking for old deliverable messages...\n");
		Message * mesg = NULL;		
		foundDeliveredMsg = false;
		for (iter = fifo_undelivered.begin(); iter != fifo_undelivered.end(); iter++){
			mesg = *iter;
			if (_clock.adjust(mesg->getStamp())){
				// ajouter dans la file des message à délivrer
				fifo_deliverable.push_back(mesg);
				// supprimer le message de la liste des non-délivrés
				fifo_undelivered.erase(iter);
				foundDeliveredMsg = true;
				printf("LowReceiver::manage_cbcast - %sfound old deliverable%s...\n",
						COLOR_RED, COLOR_NORMAL);
				break;
			}
		}
	} while (foundDeliveredMsg == true);

	for (int idx = fifo_deliverable.size(); idx > 0; idx--){
		printf("LowReceiver::manage_cbcast - delivering message...\n");
		// on POP_FRONT et on send...
		Message * deliverableMsg = fifo_deliverable.front();
		fifo_deliverable.pop_front();

		// délivrer "pour de vrai"
		this->deliver(deliverableMsg);
	}
}