/* BEGIN_ICS_COPYRIGHT5 ****************************************

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 * ** END_ICS_COPYRIGHT5   ****************************************/

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>

#include "ib_types.h"
#include "cs_log.h"
#include "cs_csm_log.h"
#include "cs_g.h"

#ifdef __VXWORKS__

#include "ESM_Messages.h"

#else

#include <syslog.h>
#include <time.h>

#define FORMAT1 "%s; MSG:%s|SM:%s|COND:%s|NODE:%s:port %u:"FMT_U64"|LINKEDTO:%s:port %u:"FMT_U64"|DETAIL:%s"
#define FORMAT2 "%s; MSG:%s|SM:%s|COND:%s|NODE:%s:port %u:"FMT_U64"|DETAIL:%s"
#define FORMAT3 "%s; MSG:%s|SM:%s|COND:%s|DETAIL:%s"

static const char * severityStrings[CSM_SEV_MAX] = {
	"", // 0th string reserved
	"INFORMATION",
	"NOTICE",
	"WARNING",
	"ERROR",
};
#endif

// Note that MSG_BUFFER_SZ is huge... We probably want to rethink this at some point
#define MSG_BUFFER_SZ 1024
#define MAX_SM_DESCRIPTION_SZ 256
#define DEFAULT_SM_DESCRIPTION "Default SM"
#define MSG_FIELD_SEPARATOR '|'
#define MSG_NODE_SEPARATOR ':'

static const char translationFromChars[] = { MSG_FIELD_SEPARATOR, MSG_NODE_SEPARATOR };
static const char translationToChars[] = { ' ', ' ' };
static const char DefaultDesc[] = DEFAULT_SM_DESCRIPTION;
static char smDescription [MAX_SM_DESCRIPTION_SZ] = DEFAULT_SM_DESCRIPTION ":port 1";
static SmCsmNodeId_t myNodeId;

static const char * conditionStrings[CSM_COND_MAX] = {
	"", // 0th string reserved
	"#1 Redundancy lost",
	"#2 Redundancy restored",
	"#3 Appearance in fabric",
	"#4 Disappearance from fabric",
	"#5 SM state to master",
	"#6 SM state to standby",
	"#7 SM shutdown",
	"#8 Fabric initialization error",
	"#9 Link integrity/symbol error",
	"#10 Security error",
	"#11 Other Exception",
	"#12 Fabric Summary",
	"#13 SM state to inactive",
	"#14 SM standby configuration inconsistency",
	"#15 SM standby virtual fabric configuration inconsistency",
	"#16 BM secondary configuration inconsistency",
	"#17 PM secondary configuration inconsistency",
	"#18 Master SM deactivating standby that is not responding",
	"#19 EM secondary configuration inconsistency",
};


static void convertChars(char * str, int numVals, const char fromValues[], const char toValues[])
{
	int i = 0, j = 0;

	if (str == NULL)
		return;

	for (i = 0; i < strlen(str); ++i)
	{
		for (j = 0; j < numVals; ++j)
		{
			if (str[i] == fromValues[j])
				str[i] = toValues[j];
		}
	}
}

/*
 * Returns the SM Node description that was set by smCsmSetLogSmDesc for
 * use by the actual logging functions
 */
SmCsmNodeId_t * getMyCsmNodeId(void)
{
	return &myNodeId;
}

/*
 * sets the SM description for CSM logging
 */
int smCsmSetLogSmDesc(const char * nodeDesc, int port, uint64_t guid)
{
	int rc = 0;

	if (nodeDesc == NULL)
		nodeDesc = DefaultDesc;

	StringCopy(myNodeId.description, nodeDesc, 64);

	convertChars(myNodeId.description, sizeof(translationFromChars),
	             translationFromChars, translationToChars);

	myNodeId.port = port;
	myNodeId.guid = guid;
#ifdef __VXWORKS__
	sprintf(smDescription, "%s:port %d", myNodeId.description, port);
#else
	snprintf(smDescription, MAX_SM_DESCRIPTION_SZ, "%s:port %d", myNodeId.description, port);
#endif

	return rc;
}

void smCsmFormatNodeId(SmCsmNodeId_t * id, uint8_t * desc, int port, uint64_t guid)
{
	StringCopy(id->description, (char *)desc, 64);

	convertChars(id->description, sizeof(translationFromChars),
	             translationFromChars, translationToChars);

	id->port = port;
	id->guid = guid;
}


#ifdef __VXWORKS__
static int smCsmLogHelper(SmCsmMsgType_t msgType, const char * smDesc, const char * condition,
                          const char * nodeDesc, const char * linkedToDesc, const char * details)
{
	switch (msgType)
	{
	 case CSM_SEV_INFO:
		if (linkedToDesc != NULL)
		{
			ESM_LOG_CSM_ESM_INFO_TWO(smDesc, condition, Log_StrDup(nodeDesc),
			                         Log_StrDup(linkedToDesc),
			                         Log_StrDup(details));
		} else if(nodeDesc != NULL)
		{
			ESM_LOG_CSM_ESM_INFO_ONE(smDesc, condition, Log_StrDup(nodeDesc),
			                         Log_StrDup(details));
			                         
		} else
		{
			ESM_LOG_CSM_ESM_INFO_ZERO(smDesc, condition, 
			                         Log_StrDup(details));
		}
		break;

	 case CSM_SEV_NOTICE:
		if (linkedToDesc != NULL)
		{
			ESM_LOG_FINAL_CSM_ESM_NOTICE_TWO(smDesc, condition, Log_StrDup(nodeDesc),
			                           Log_StrDup(linkedToDesc), 
			                         Log_StrDup(details));
		} else if(nodeDesc != NULL)
		{
			ESM_LOG_FINAL_CSM_ESM_NOTICE_ONE(smDesc, condition, Log_StrDup(nodeDesc),
			                         Log_StrDup(details));
			                         
		} else
		{
			ESM_LOG_FINAL_CSM_ESM_NOTICE_ZERO(smDesc, condition, 
			                         Log_StrDup(details));
		}
		break;

	 case CSM_SEV_WARNING:
		if (linkedToDesc != NULL)
		{
			ESM_LOG_FINAL_CSM_ESM_WARNING_TWO(smDesc, condition, Log_StrDup(nodeDesc),
			                            Log_StrDup(linkedToDesc), 
			                         Log_StrDup(details));
		} else if(nodeDesc != NULL)
		{
			ESM_LOG_FINAL_CSM_ESM_WARNING_ONE(smDesc, condition, Log_StrDup(nodeDesc),
			                         Log_StrDup(details));
			                         
		} else
		{
			ESM_LOG_FINAL_CSM_ESM_WARNING_ZERO(smDesc, condition, 
			                         Log_StrDup(details));
		}
		break;

	 case CSM_SEV_ERROR: /* fall through to default case */
	 default:
		if (linkedToDesc != NULL)
		{
			ESM_LOG_FINAL_CSM_ESM_ERROR_TWO(smDesc, condition, Log_StrDup(nodeDesc),
			                          Log_StrDup(linkedToDesc), 
			                         Log_StrDup(details));
		} else if(nodeDesc != NULL)
		{
			ESM_LOG_FINAL_CSM_ESM_ERROR_ONE(smDesc, condition, Log_StrDup(nodeDesc),
			                         Log_StrDup(details));
			                         
		} else
		{
			ESM_LOG_FINAL_CSM_ESM_ERROR_ZERO(smDesc, condition, 
			                         Log_StrDup(details));
		}
		break;
	}
	return 0;
}
#endif

/*
 * Logs a csm message
 */
int smCsmLogMessage( SmCsmMsgType_t msgType, SmCsmMsgCondition_t cond,
                     SmCsmNodeId_t * node, SmCsmNodeId_t * linkedTo,
                     char * detailFmt, ... )
{
	int rc = 0;
	va_list ap;

#ifdef __VXWORKS__
	char detailBuffer[MSG_BUFFER_SZ];
	if (detailFmt != NULL)
	{
		StringCopy(detailBuffer, "|DETAIL:", sizeof(detailBuffer));
		va_start(ap, detailFmt);
		vsprintf(detailBuffer + strlen(detailBuffer), detailFmt, ap);
		va_end(ap);
	} else
	{
		detailBuffer[0] = '\0';
	}

	if (node == NULL)
	{
		smCsmLogHelper(msgType, smDescription, conditionStrings[cond],
		               NULL, NULL, detailBuffer);
	} else
	{
		char nodeDescBuffer[100];
		sprintf(nodeDescBuffer, "%s:port %u:"FMT_U64,
		        node->description, node->port, node->guid);

		if (linkedTo == NULL)
		{
			smCsmLogHelper(msgType, smDescription, conditionStrings[cond], nodeDescBuffer,
			               NULL, detailBuffer);
		} else
		{
			char linkedToDescBuffer[100];
			sprintf(linkedToDescBuffer, "%s:port %u:"FMT_U64,
			        linkedTo->description, linkedTo->port, linkedTo->guid);

			smCsmLogHelper(msgType, smDescription, conditionStrings[cond], nodeDescBuffer,
			               linkedToDescBuffer, detailBuffer);
		}
	}

#else
	char buffer[MSG_BUFFER_SZ];
	int priority = LOG_ERR;
	int flush = 0;
	extern FILE *log_file;	// from vslog.c
	extern int output_fd;	// from vslog.c
	extern int logMode;	// from vslog.c
	FILE *f = NULL;
	extern uint32_t log_to_console; 

	switch (msgType) {
 	 case CSM_SEV_INFO:
		priority = LOG_INFO;
		if((VS_LOG_CSM_INFO & cs_log_masks[VIEO_APP_MOD_ID]) == 0)
			 return 0;
		flush = 0;
		break;

	 case CSM_SEV_NOTICE:
		priority = LOG_NOTICE;
		if((VS_LOG_CSM_NOTICE & cs_log_masks[VIEO_APP_MOD_ID]) == 0)
			 return 0;
		flush = 1;
		break;

	 case CSM_SEV_WARNING:
		priority = LOG_WARNING;
		if((VS_LOG_CSM_WARN & cs_log_masks[VIEO_APP_MOD_ID]) == 0)
			 return 0;
		flush = 1;
		break;

	 case CSM_SEV_ERROR:
	 default:
		priority = LOG_ERR;
		if((VS_LOG_CSM_ERROR & cs_log_masks[VIEO_APP_MOD_ID]) == 0)
			 return 0;
		flush = 1;
		break;
	}

	if (node != NULL)
	{
		if (linkedTo != NULL)
		{
			snprintf(buffer, MSG_BUFFER_SZ, FORMAT1, myNodeId.description,
			         severityStrings[msgType], smDescription, conditionStrings[cond], 
			         node->description, node->port, node->guid,
			         linkedTo->description, linkedTo->port, linkedTo->guid,
			         detailFmt);
		} else
		{
			snprintf(buffer, MSG_BUFFER_SZ, FORMAT2, myNodeId.description,
			         severityStrings[msgType], smDescription, conditionStrings[cond], 
			         node->description, node->port, node->guid,
			         detailFmt);
		}
	} else
	{
		snprintf(buffer, MSG_BUFFER_SZ, FORMAT3, myNodeId.description,
		         severityStrings[msgType], smDescription, conditionStrings[cond], 
		         detailFmt);
	}
	if(log_to_console){
		f = stdout;
	} else if(output_fd != -1) {
		f = log_file;
	}
	if(f)
	{
    	time_t    theCalTime=0;
    	struct tm *locTime;
    	char      strTime[28];

    	time(&theCalTime);
    	locTime = localtime(&theCalTime);
		if (locTime) {
			size_t l = strftime(strTime,
				sizeof(strTime),
				"%a %b %d %H:%M:%S %Y", 
				locTime);
			if (l==0) {
				strncpy(strTime,"(unknown)", sizeof(strTime));
			}
		} else {
			strncpy(strTime,"(unknown)", sizeof(strTime));
		}
		// TBD - later output in one print so can't intermingle with others
		fprintf(f, "%s: ", strTime);
		va_start(ap, detailFmt);
		vfprintf(f, buffer, ap);
		va_end(ap);
		fputc('\n', f);
	    if (flush)
            fflush(f);
    }
	if(output_fd == -1 || (logMode & 0x2) == 0)
	{
		va_start(ap, detailFmt);
		vsyslog(priority, buffer, ap);
		va_end(ap);
	}

#endif

	return rc;
}