Subversion Repositories wimsdev

/*    Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

/* This is an internal program,

 * used to show statistics of frequentation, module by module.

*/

#include "../Lib/libwims.h"

#define MAX_EXO        64

#define MAX_SHEET      64

#define MAX_EXAM       32

#define MAX_SCORE      512*1024

typedef struct {

    short int dure,score;

    long int next;

} scoredata;

scoredata scores[MAX_SCORE];

int sccnt=0;

typedef struct {

    int newcnt,scorecnt,lasttime,firstscore,lastscore;

    char lastnew[12];

} exodata;

exodata shdata[MAX_SHEET*MAX_EXO],examdata[MAX_EXAM*MAX_EXO];

/* cid: combined index of difficulty */

double scsum, scavg, scdeviat, scmin, scmax, cid;

double dursum, duravg, durdeviat, durmin, durmax;

int filecnt=0, fcind;

char *dirbase, *sdata;

int str2time(char *p)

{

    int sec,min,hr;

    sec=atoi(p+15); p[14]=0;

    min=atoi(p+12); p[11]=0;

    hr=atoi(p+9);

    if(sec<0 || min<0 || hr<0 || sec>59 || min>59 || hr>23) return -1;

    return hr*3600+min*60+sec;

}

void oneline(char *p)

{

    int i, sh, ex, t;

    char *data[64];

    exodata *tab;

    char *pp, *pe;

    for(i=0, pp=find_word_start(p); i<8 && *pp; pp=find_word_start(pe),i++) {

      pe=find_word_end(pp); if(*pe) *pe++=0;

      data[i]=pp;

    }

    if(i<6) return;

    sh=atoi(data[2]); ex=atoi(data[3]);

    if(sh<=0 || ex<=0 || ex>MAX_EXO || strlen(data[1])>10) return;

    if(data[0][0]=='E') {

      tab=examdata; data[0]++; if(sh>MAX_EXAM) return;

    }

    else {

      tab=shdata; if(sh>MAX_SHEET) return;

    }

    tab+=(sh-1)*MAX_EXO+(ex-1);

    t=str2time(data[0]); if(t==-1) return;

    if(strstr(data[4],"new")!=NULL) {

      snprintf(tab->lastnew,12,"%s",data[1]);

      tab->newcnt++; tab->lasttime=t;

      fcind++;

      return;

    }

    if(strcmp(data[4],"score")==0) {

      if(strcmp(tab->lastnew,data[1])!=0) return;

      if(sccnt>=MAX_SCORE) return;

      if(tab->lasttime==-1) return;

      t-=tab->lasttime; tab->lasttime=-1; if(t<0) t+=24*3600;

      if(t<0) t=0; if(t>5*3600) t=5*3600;

      scores[sccnt].dure=t; scores[sccnt].next=-1;

      scores[sccnt].score=(double) atof(data[5])*100+0.5;

      if(tab->scorecnt>0) scores[tab->lastscore].next=sccnt;

      else tab->firstscore=sccnt;

      tab->lastscore=sccnt; sccnt++; tab->scorecnt++;

    }

}

void onefile(char *fname)

{

    FILE *f;

    char *buf, *pp, *pe;

    long int l;

    f=fopen(fname,"r"); if(f==NULL) return;

    fseek(f,0,SEEK_END); l=ftell(f); fseek(f,0,SEEK_SET);

    if(l<=0) {fclose(f); return;}

    buf=xmalloc(l+16); (void)fread(buf,1,l,f); fclose(f); buf[l]=0;

    fcind=0;

    for(pp=buf; pp; pp=pe) {

      pe=strchr(pp,'\n'); if(pe!=NULL) *pe++=0;

      oneline(pp);

    }

    free(buf);

    if(fcind>0) filecnt++;

}

void onedir(char *dirname)

{

    char buf[MAX_LINELEN+1], buf2[MAX_LINELEN+1];

    DIR *dir;

    struct dirent *ff;

    char *t1, *t2, types[256];

    snprintf(types,sizeof(types),"%s",sdata);

    for(t1=find_word_start(types); *t1; t1=find_word_start(t2)) {

      t2=find_word_end(t1); if(*t2) *t2++=0;

      snprintf(buf,sizeof(buf),"%s/%s/%s",dirbase,dirname,t1);

      dir=opendir(buf); if(dir==NULL) return;

      while((ff=readdir(dir))!=NULL) {

          if(!isalnum(ff->d_name[0]) ||

             strcmp(ff->d_name,"supervisor")==0) continue;

          snprintf(buf2,sizeof(buf2),"%s/%s",buf,ff->d_name);

          onefile(buf2);

      }

      closedir(dir);

    }

}

void stati(exodata *dat)

{

    int i,j;

    double s,d;

    scsum=scavg=scdeviat=dursum=duravg=durdeviat=cid=0;

    scmin=10; scmax=0; durmin=24*3600; durmax=0;

    for(i=0,j=dat->firstscore; i<dat->scorecnt; i++) {

      s=(double) scores[j].score/100; d=(double) scores[j].dure/60;

      scsum+=s; dursum+=d;

      if(scmin>s) scmin=s; if(scmax<s) scmax=s;

      if(durmin>d) durmin=d; if(durmax<d) durmax=d;

      j=scores[j].next;

    }

    if(i<=0) {scmin=durmin=0; return;}

    scavg=scsum/i; duravg=dursum/i;

    if(scsum>1) cid=min(4*sqrt(dursum*dat->newcnt)/scsum,99);

    else cid=0;

    if(i>=2) {

      for(i=0,j=dat->firstscore; i<dat->scorecnt; i++) {

          s=(double) scores[j].score/100; d=(double) scores[j].dure/60;

          scdeviat+=(s-scavg)*(s-scavg); durdeviat+=(d-duravg)*(d-duravg);

          j=scores[j].next;

      }

      scdeviat=sqrt(scdeviat/i); durdeviat=sqrt(durdeviat/i);

    }

}

/* Output line format:

 * type sh exo newcnt scorecnt scsum dursum scavg duravg scmin durmin scmax durmax scdeviat durdeviat cid

 */

void output(void)

{

    int i;

    for(i=0;i<MAX_SHEET*MAX_EXO;i++) {

      if(shdata[i].newcnt<=0) continue;

      stati(shdata+i);

      printf(":S %2d %2d %4d %4d \

%4.0f %4.0f %5.2f %5.2f \

%5.2f %4.1f %5.2f %5.1f \

%5.2f %5.2f %4.1f\n",

             i/MAX_EXO+1,i%MAX_EXO+1,

             shdata[i].newcnt, shdata[i].scorecnt,

             scsum, dursum,

             scavg, duravg,

             scmin,durmin,scmax,durmax,

             scdeviat, durdeviat,

             cid);

    }

    for(i=0;i<MAX_EXAM*MAX_EXO;i++) {

      if(examdata[i].newcnt<=0) continue;

      stati(examdata+i);

      printf(":E %2d %2d %4d %4d \

%4.0f %4.0f %5.2f %5.2f \

%5.2f %4.1f %5.2f %5.1f \

%5.2f %5.2f %4.1f\n",

             i/MAX_EXO+1,i%MAX_EXO+1,

             examdata[i].newcnt, examdata[i].scorecnt,

             scsum, dursum,

             scavg, duravg,

             scmin,durmin,scmax,durmax,

             scdeviat, durdeviat,

             cid);

    }

}

int main()

{

    char cla[MAX_LINELEN+1];

    char *c1, *c2;

    char *cdata;

    memset(shdata,0,sizeof(shdata)); memset(examdata,0,sizeof(examdata));

    dirbase=getenv("exostat_dirbase");

    if(dirbase==NULL || *dirbase==0) dirbase="../log/classes";

    sdata=getenv("exostat_types");

    if(sdata==NULL || *sdata==0) sdata="score noscore";

    cdata=getenv("exostat_classes");

    if(cdata==NULL || *cdata==0) cdata=getenv("w_wims_class");

    if(cdata==NULL || *cdata==0) return -1;

    snprintf(cla,sizeof(cla),"%s",cdata);

    for(c1=cla; *c1; c1++) if(!isalnum(*c1) && *c1!='/') *c1=' ';

    for(c1=find_word_start(cla); *c1; c1=find_word_start(c2)) {

      c2=find_word_end(c1); if(*c2) *c2++=0;

      onedir(c1);

    }

    output();

    return 0;

}