* Finished the implementation of per-message seen/unseen logic, both in the

[citadel.git] / citadel / msgbase.c

diff --git a/citadel/msgbase.c b/citadel/msgbase.c
index b7533685ce112792aea83b66041b8f849f7b9544..fed836cbd1b2e65f082601daed5f87a4aba523bd 100644 (file)
--- a/citadel/msgbase.c
+++ b/citadel/msgbase.c
@@ -266,6 +266,81 @@ int CtdlMsgCmp(struct CtdlMessage *msg, struct CtdlMessage *template) {
 }
 
 
+/*
+ * Manipulate the "seen msgs" string.
+ */
+void CtdlSetSeen(long target_msgnum, int target_setting) {
+       char newseen[SIZ];
+       struct cdbdata *cdbfr;
+       int i;
+       int is_seen = 0;
+       int was_seen = 1;
+       long lo = (-1L);
+       long hi = (-1L);
+       struct visit vbuf;
+       long *msglist;
+       int num_msgs = 0;
+
+       /* Learn about the user and room in question */
+       get_mm();
+       getuser(&CC->usersupp, CC->curr_user);
+       CtdlGetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
+
+       /* Load the message list */
+       cdbfr = cdb_fetch(CDB_MSGLISTS, &CC->quickroom.QRnumber, sizeof(long));
+       if (cdbfr != NULL) {
+               msglist = mallok(cdbfr->len);
+               memcpy(msglist, cdbfr->ptr, cdbfr->len);
+               num_msgs = cdbfr->len / sizeof(long);
+               cdb_free(cdbfr);
+       } else {
+               return; /* No messages at all?  No further action. */
+       }
+
+       lprintf(9, "before optimize: %s\n", vbuf.v_seen);
+       strcpy(newseen, "");
+
+       for (i=0; i<num_msgs; ++i) {
+               is_seen = 0;
+
+               if (msglist[i] == target_msgnum) {
+                       is_seen = target_setting;
+               }
+               else {
+                       if (is_msg_in_mset(vbuf.v_seen, msglist[i])) {
+                               is_seen = 1;
+                       }
+               }
+
+               if (is_seen == 1) {
+                       if (lo < 0L) lo = msglist[i];
+                       hi = msglist[i];
+               }
+               if (  ((is_seen == 0) && (was_seen == 1))
+                  || ((is_seen == 1) && (i == num_msgs-1)) ) {
+                       if ( (strlen(newseen) + 20) > SIZ) {
+                               strcpy(newseen, &newseen[20]);
+                               newseen[0] = '*';
+                       }
+                       if (strlen(newseen) > 0) strcat(newseen, ",");
+                       if (lo == hi) {
+                               sprintf(&newseen[strlen(newseen)], "%ld", lo);
+                       }
+                       else {
+                               sprintf(&newseen[strlen(newseen)], "%ld:%ld",
+                                       lo, hi);
+                       }
+                       lo = (-1L);
+                       hi = (-1L);
+               }
+               was_seen = is_seen;
+       }
+
+       safestrncpy(vbuf.v_seen, newseen, SIZ);
+       lprintf(9, " after optimize: %s\n", vbuf.v_seen);
+       phree(msglist);
+       CtdlSetRelationship(&vbuf, &CC->usersupp, &CC->quickroom);
+}
 
 
 /*
@@ -308,6 +383,9 @@ int CtdlForEachMessage(int mode, long ref,
        }
 
 
+       /*
+        * Now begin the traversal.
+        */
        if (num_msgs > 0) for (a = 0; a < num_msgs; ++a) {
                GetSuppMsgInfo(&smi, msglist[a]);