Fossil

@ -- The first character of the eventid determines the event type.
@ -- Remaining characters determine the specific event.  For example,
@ -- 'c4413' means check-in with rid=4413.
@ --
@ CREATE TABLE repository.pending_alert(
@   eventid TEXT PRIMARY KEY,         -- Object that changed
@   sentSep BOOLEAN DEFAULT false,    -- individual emails sent
@   sendDigest BOOLEAN DEFAULT false, -- digest emails sent
@ ) WITHOUT ROWID;
@ 
@ -- Record bounced emails.  If too many bounces are received within
@ -- some defined time range, then cancel the subscription.  Older
@ -- entries are periodically purged.
@ --
@ CREATE TABLE repository.email_bounce(

  }
  @ </table>
  db_finalize(&q);
  style_footer();
}

#if LOCAL_INTERFACE
/*
** A single event that might appear in an alert is recorded as an
** instance of the following object.
*/

struct EmailEvent {
  int type;          /* 'c', 't', 'w', etc. */
  Blob txt;          /* Text description to appear in an alert */
  EmailEvent *pNext; /* Next in chronological order */
};
#endif

/*
** Free a linked list of EmailEvent objects
*/
void email_free_eventlist(EmailEvent *p){
  while( p ){
    EmailEvent *pNext = p->pNext;
    blob_zero(&p->txt);
    fossil_free(p);
    p = pNext;
  }
}

/*
** Compute and return a linked list of EmailEvent objects
** corresponding to the current content of the temp.wantalert
** table which should be defined as follows:
**
**     CREATE TEMP TABLE wantalert(eventId TEXT);
*/
EmailEvent *email_compute_event_text(int *pnEvent){
  Stmt q;
  EmailEvent *p;
  EmailEvent anchor;
  EmailEvent *pLast;
  const char *zUrl = db_get("email-url","http://localhost:8080");

  db_prepare(&q,
    "SELECT"
    " blob.uuid,"  /* 0 */
    " datetime(event.mtime),"  /* 1 */
    " coalesce(ecomment,comment)"
    "  || ' (user: ' || coalesce(euser,user,'?')"
    "  || (SELECT case when length(x)>0 then ' tags: ' || x else '' end"
    "      FROM (SELECT group_concat(substr(tagname,5), ', ') AS x"
    "              FROM tag, tagxref"
    "             WHERE tagname GLOB 'sym-*' AND tag.tagid=tagxref.tagid"
    "               AND tagxref.rid=blob.rid AND tagxref.tagtype>0))"
    "  || ')' as comment,"  /* 2 */
    " tagxref.value AS branch,"  /* 3 */
    " wantalert.eventId"     /* 4 */
    " FROM temp.wantalert JOIN tag CROSS JOIN event CROSS JOIN blob"
    "  LEFT JOIN tagxref ON tagxref.tagid=tag.tagid"
    "                       AND tagxref.tagtype>0"
    "                       AND tagxref.rid=blob.rid"
    " WHERE blob.rid=event.objid"
    "   AND tag.tagname='branch'"
    "   AND event.objid=substr(wantalert.eventId,2)+0"
    " ORDER BY event.mtime"
  );
  memset(&anchor, 0, sizeof(anchor));
  pLast = &anchor;
  *pnEvent = 0;
  while( db_step(&q)==SQLITE_ROW ){
    const char *zType = "";
    p = fossil_malloc( sizeof(EmailEvent) );
    pLast->pNext = p;
    pLast = p;
    p->type = db_column_text(&q, 4)[0];
    p->pNext = 0;
    switch( p->type ){
      case 'c':  zType = "Check-In";        break;
      case 't':  zType = "Wiki Edit";       break;
      case 'w':  zType = "Ticket Change";   break;

    }


    blob_init(&p->txt, 0, 0);

    blob_appendf(&p->txt,"== %s %s ==\n%s\n%s/info/%.20s\n",
      db_column_text(&q,1),
      zType,
      db_column_text(&q,2),

      zUrl,
      db_column_text(&q,0)
    );
    *pnEvent++;
  }
  db_finalize(&q);
  return anchor.pNext;
}

/*
** Put a header on an alert email
*/
void email_header(Blob *pOut){
  blob_appendf(pOut,
    "This is an automated email reporting changes "
    "on Fossil repository %s (%s/timeline)\n",
    db_get("email-subname","(unknown)"),
    db_get("email-url","http://localhost:8080"));
}

/*
** Append the "unsubscribe" notification and other footer text to
** the end of an email alert being assemblied in pOut.
*/
void email_footer(Blob *pOut){
  blob_appendf(pOut, "\n%.72c\nTo unsubscribe: %s/unsubscribe\n",
     '-', db_get("email-url","http://localhost:8080"));
}

/*
** COMMAND:  test-generate-alert
**
** Usage: %fossil test-generate-alert [--html] [--actual] EVENTID ...
**
** Generate the text of an email alert for all of the EVENTIDs
** listed on the command-line.  Write that text to standard
** output.  If the --actual flag is present, then the EVENTIDs are
** the actual event-ids in the pending_alert table.
**
** This command is intended for testing and debugging the logic
** that generates email alert text.



*/
void test_generate_alert_cmd(void){

  int bActual = find_option("actual",0,0)!=0;
  Blob out;
  int i;
  int nEvent;
  EmailEvent *pEvent, *p;


  db_find_and_open_repository(0, 0);
  verify_all_options();
  db_begin_transaction();
  email_schema();


  db_multi_exec("CREATE TEMP TABLE wantalert(eventid TEXT)");
  if( bActual ){


    db_multi_exec("INSERT INTO wantalert SELECT eventid FROM pending_alert");







  }else{
    int i;
    for(i=2; i<g.argc; i++){
      db_multi_exec("INSERT INTO wantalert VALUES(%Q)", g.argv[i]);
    }
  }
  blob_init(&out, 0, 0);
  email_header(&out);
  pEvent = email_compute_event_text(&nEvent);
  for(p=pEvent; p; p=p->pNext){
    blob_append(&out, "\n", 1);
    blob_append(&out, blob_buffer(&p->txt), blob_size(&p->txt));
  }
  email_free_eventlist(pEvent);
  email_footer(&out);
  fossil_print("%s", blob_str(&out));
  blob_zero(&out);
  db_end_transaction(0);
}