#include "common_tool.h"
#include "clog.h"
#include "cgi.h"
#include "input.h"
#include "wrenchboard_api.h"
//#include "interswitch_sendmoney.h"
#include "safestring.h"
#include "cfg.h"
#include <string>
#include "pgsql_wrapper.h"
#include "pgsql.h"

//char confirmation[20] = "";
//Confirmation(payment_id, confirmation, sizeof (confirmation));
void GenerateConfirmationSeed( char * number, int sz, int seed );

void GenerateConfirmation( char * number, int sz )
{
	GenerateConfirmationSeed(number,sz,1);
}

void GenerateConfirmationSeed( char * number, int sz, int seed )
{
        char chars[] = "WRB01234WRB56789WRB";
        int n = sizeof(chars);
        int i;
/*
        time_t t;
        time( &t );
        pid_t pid = getpid();

        srand(t+pid);
*/
	srand((unsigned int)time((time_t *)NULL));

        for ( i=0; i<10 && i<sz-1; i++ )
        {
		int k = seed%n;
		if (seed>1 && k==i) {
			number[i] = chars[n-k];
		} else {
                	number[i] = chars[ (int) ( (n-1.0)*rand()/(RAND_MAX+1.0)) ];
		}
        }
        number[i] = 0;
}



void Confirmation( unsigned long  payment_id, char * number, int sz )
{
	SQLINTEGER rows;
	char confirmation[11];

   // Lock table to prevent generation of two identical confirmation numbers
	pgsql_exec("BEGIN; LOCK TABLE members_payments;" );
	int i = 0;
	do
	{
		GenerateConfirmationSeed( confirmation, sizeof(confirmation), i++ );

        	//st.CloseCursor();
			rows = 0;		
			const PGresult *res = pgsql_query("SELECT id FROM members_payments WHERE confirmation='%s'", confirmation );
			if (res!=NULL )						
			{
			    rows = pgsql_num_rows(res);
			}
	} while ( rows>0 && i<100 );
	
	pgsql_exec("UPDATE members_payments SET confirmation='%s', dt_confirmed=now() WHERE id=%lu", confirmation, payment_id );
	pgsql_exec("COMMIT" );         // Unlock table 'data'
	strsafecpy( number, confirmation, sz );
}


void GetOfferCode( unsigned long  offer_id, char * number, int sz )
{
	SQLINTEGER rows;
	char offer_code[14];

   // Lock table to prevent generation of two identical confirmation numbers
	pgsql_exec("BEGIN; LOCK TABLE members_jobs_offer;" );
	int i = 0;
	do
	{
		GenerateConfirmationSeed( offer_code, sizeof(offer_code), i++ );

        	//st.CloseCursor();
			rows = 0;		
			const PGresult *res = pgsql_query("SELECT id FROM members_jobs_offer WHERE offer_code='%s'", offer_code );
			if (res!=NULL )						
			{
			    rows = pgsql_num_rows(res);
			}
	} while ( rows>0 && i<100 );

	pgsql_exec("UPDATE members_jobs_offer SET offer_code='%s' WHERE id=%lu", offer_code, offer_id );
	pgsql_exec("COMMIT" );         // Unlock table 'data'
	strsafecpy( number, offer_code, sz );
}