Implement configurable auto replay modes. So far there is "none", "time" (auto replay the last X seconds), and "lastspoke" (auto replay everything since you last spoke).

1 files changed, 85 insertions, 4 deletions

diff --git a/replay.c b/replay.c
index 4850a22..3a40e16 100644
--- a/replay.c
+++ b/replay.c
@@ -188,7 +188,7 @@ int replaylines(int seconds, char *basedir) {
     }
     
     // If the line is within range of the requested time, count it
-    if (timestamp > timenow - seconds) {
+    if (timestamp >= timenow - seconds) {
       numlines++;
     }
   }
@@ -216,7 +216,7 @@ int readreplayline(int seconds, int linenum, char *str, char *basedir) {
   fp = fopen(filename, "r");
 
   if (fp == NULL) {
-    debugprint(DEBUG_CRIT, "error: could not open replay log '%s'.\n", filename);
+    debugprint(DEBUG_CRIT, "error: readreplayline(): could not open replay log '%s'.\n", filename);
     fclose(fp);
     return 0;
   }
@@ -228,13 +228,13 @@ int readreplayline(int seconds, int linenum, char *str, char *basedir) {
     // Read the timestamp from each line
     int timestamp = gettimestamp(line);
     if (timestamp < 1) {
-      debugprint(DEBUG_CRIT, "Error reading timestamp from replay log file.\n");
+      debugprint(DEBUG_CRIT, "readreplayline(): Error reading timestamp from replay log file.\n");
       fclose(fp);
       return 0;
     }
 
     // If the line is within range of the requested time...
-    if (timestamp > timenow - seconds) {
+    if (timestamp >= timenow - seconds) {
       // ...and it is the current requested line then return it
       if (count == linenum) {
         // Insert our formatted [HH:MM:SS] timestamp into the message
@@ -254,6 +254,87 @@ int readreplayline(int seconds, int linenum, char *str, char *basedir) {
   return 0;
 }
 
+// Returns the number of seconds ago that 'nick' last spoke, or -1 if there is a problem.
+// 'basedir' is the directory in which to find 'replay.log'.
+int lastspokesecondsago(char *nick, char *basedir) {
+  FILE *fp;
+  char str[MAXCHAR];
+  char filename[PATH_MAX];
+
+  // Build path
+  snprintf(filename, PATH_MAX, "%s/replay.log", basedir);
+
+  int lastspoketime = 0; // When 'nick' last spoke
+
+  // Get the current time for comparison later
+  int timenow = (int)time(NULL);
+
+  fp = fopen(filename, "r");
+
+  if (fp == NULL) {
+    printf("error: replaylineslastspoke(): could not open replay log '%s'.\n", filename);
+    // Assume the file just doesn't exist yet - TODO - Interpret error codes to see what happened.
+    fclose(fp);
+    return 0;
+  }
+
+  while (fgets(str, MAXCHAR, fp) != NULL) {
+    // Split the line up to determine if it was a PRIVMSG sent by the requested 'nick'
+    // TODO - This may also be terribly inefficient
+
+    // Copy to a temporary string
+    char *strcopy = strdup(str);
+    // Keep track of initial pointer for free()ing later
+    char *strcopyPtr = strcopy;
+
+    // Build array of each space-separated token, only need three (<timestamp> :<nick>!<user>@<host> PRIVMSG)
+    char tokens[3][MAXDATASIZE + TIMELEN]; // Make IRC message length + our unix timestamp
+    char *token;
+    int counter = 0;
+    for (int i = 0; i < 3; i++) {
+      // Try to split
+      if ((token = strsep(&strcopy, " ")) == NULL) {
+        debugprint(DEBUG_CRIT, "replaylineslastspoke(): error splitting string on iteration '%d', returning -1!\n", i);
+        return -1;
+      }
+      // Copy into the token array (strlen + 1 to get the NULL terminator)
+      strncpy(tokens[i], token, strlen(token) + 1);
+      counter++;
+    }
+    free(strcopyPtr);
+
+    // Make sure there were at least three tokens
+    if (counter < 3) {
+      debugprint(DEBUG_CRIT, "replaylineslastspoke(): not enough tokens on line, only '%d', returning -1!\n", counter);
+      return -1;
+    }
+
+    // Make sure it started with a valid timestamp
+    int timestamp = gettimestamp(tokens[0]);
+    if (timestamp < 0) {
+      debugprint(DEBUG_CRIT, "replaylineslastspoke(): line didn't start with a timestamp, returning -1!\n", counter);
+    }
+
+    // Is it a PRIVMSG?
+    if (strncmp(tokens[2], "PRIVMSG", strlen("PRIVMSG"))) {
+      // Not a PRIVMSG, continue
+      continue;
+    }
+
+    // Was it said by our 'nick'?
+    extractnickfromprefix(tokens[1]);
+    if (strncmp(tokens[1], nick, strlen(nick))) {
+      // Not our 'nick', continue
+      continue;
+    }
+
+    lastspoketime = timestamp;
+  }
+
+  fclose(fp);
+  return timenow - lastspoketime;
+}
+
 // Write the line 'str' to the replay log file after prepending it with
 // the current unixtime timestamp.  'basedir' is the directory in which
 // to write to 'replay.log'.