1 files changed, 16 insertions, 3 deletions

diff --git a/swaybar/i3bar.c b/swaybar/i3bar.c
index 88404703..8e9b038b 100644
--- a/swaybar/i3bar.c
+++ b/swaybar/i3bar.c
@@ -6,7 +6,9 @@
 #include <string.h>
 #include <unistd.h>
 #include <wlr/util/log.h>
+#include "swaybar/bar.h"
 #include "swaybar/config.h"
+#include "swaybar/i3bar.h"
 #include "swaybar/status_line.h"
 
 void i3bar_block_unref(struct i3bar_block *block) {
@@ -117,7 +119,9 @@ bool i3bar_handle_readable(struct status_line *status) {
                                 memmove(status->buffer, &status->buffer[c], status->buffer_index);
                                 break;
                         } else if (!isspace(status->buffer[c])) {
-                                status_error(status, "[invalid json]");
+                                wlr_log(WLR_DEBUG, "Invalid i3bar json: expected '[' but encountered '%c'",
+                                                status->buffer[c]);
+                                status_error(status, "[invalid i3bar json]");
                                 return true;
                         }
                 }
@@ -155,6 +159,8 @@ bool i3bar_handle_readable(struct status_line *status) {
                                         ++buffer_pos;
                                         break;
                                 } else if (!isspace(status->buffer[buffer_pos])) {
+                                        wlr_log(WLR_DEBUG, "Invalid i3bar json: expected ',' but encountered '%c'",
+                                                        status->buffer[buffer_pos]);
                                         status_error(status, "[invalid i3bar json]");
                                         return true;
                                 }
@@ -166,7 +172,8 @@ bool i3bar_handle_readable(struct status_line *status) {
                 } else {
                         test_object = json_tokener_parse_ex(status->tokener,
                                         &status->buffer[buffer_pos], status->buffer_index - buffer_pos);
-                        if (json_tokener_get_error(status->tokener) == json_tokener_success) {
+                        enum json_tokener_error err = json_tokener_get_error(status->tokener);
+                        if (err == json_tokener_success) {
                                 if (json_object_get_type(test_object) == json_type_array) {
                                         if (last_object) {
                                                 json_object_put(last_object);
@@ -198,12 +205,14 @@ bool i3bar_handle_readable(struct status_line *status) {
                                         continue; // look for comma without reading more input
                                 }
                                 buffer_pos = status->buffer_index = 0;
-                        } else if (json_tokener_get_error(status->tokener) == json_tokener_continue) {
+                        } else if (err == json_tokener_continue) {
+                                json_tokener_reset(status->tokener);
                                 if (status->buffer_index < status->buffer_size) {
                                         // move the object to the start of the buffer
                                         status->buffer_index -= buffer_pos;
                                         memmove(status->buffer, &status->buffer[buffer_pos],
                                                         status->buffer_index);
+                                        buffer_pos = 0;
                                 } else {
                                         // expand buffer
                                         status->buffer_size *= 2;
@@ -217,6 +226,10 @@ bool i3bar_handle_readable(struct status_line *status) {
                                         }
                                 }
                         } else {
+                                char last_char = status->buffer[status->buffer_index - 1];
+                                status->buffer[status->buffer_index - 1] = '\0';
+                                wlr_log(WLR_DEBUG, "Failed to parse i3bar json - %s: '%s%c'",
+                                                json_tokener_error_desc(err), &status->buffer[buffer_pos], last_char);
                                 status_error(status, "[failed to parse i3bar json]");
                                 return true;
                         }