feat(report): improve size summary output

Track the total encoded output size alongside the original and saved
byte counts so the batch summary can show original vs. new totals.

Improve size report feedback for larger outputs by printing the byte
difference as “larger” instead of showing a negative saved value. Rework
the final summary format to include colored encoded, skipped, failed,
total-size, and average saving lines, with skipped and failed counts
broken down by reason.

1 files changed, 17 insertions, 9 deletions

diff --git a/transcode.sh b/transcode.sh
index 3f317e6..e333200 100755
--- a/transcode.sh
+++ b/transcode.sh
@@ -175,6 +175,7 @@ _REPORT_SKIPPED_CODEC=0
 _REPORT_SKIPPED_LARGER=0
 _REPORT_SUCCEEDED=0
 _REPORT_TOTAL_ORIGINAL_BYTES=0
+_REPORT_TOTAL_NEW_BYTES=0
 _REPORT_TOTAL_SAVED_BYTES=0
 
 ###############################################################################
@@ -1150,9 +1151,15 @@ print_size_report_feedback() {
   local saved_bytes="$4"
   local saved_pct="$5"
 
-  msg "Size report [$status]:" \
-    "$(format_filesize "$original_bytes") → $(format_filesize "$new_bytes")," \
-    "$(format_filesize "$saved_bytes") saved (${saved_pct}%)"
+  if [[ $saved_bytes -lt 0 ]]; then
+    msg "Size report [$status]:" \
+      "$(format_filesize "$original_bytes") → $(format_filesize "$new_bytes")," \
+      "$(format_filesize "$((-saved_bytes))") larger (${saved_pct}%)"
+  else
+    msg "Size report [$status]:" \
+      "$(format_filesize "$original_bytes") → $(format_filesize "$new_bytes")," \
+      "$(format_filesize "$saved_bytes") saved (${saved_pct}%)"
+  fi
 }
 
 # Print the end-of-run size report summary for batch runs.
@@ -1172,12 +1179,12 @@ print_size_report_summary() {
     average_saved_pct=$((_REPORT_TOTAL_SAVED_BYTES * 100 / _REPORT_TOTAL_ORIGINAL_BYTES))
   fi
 
-  printf "\n${BOLD}${BLUE}Size report summary:${ALL_OFF}\n"
-  printf "  Encoded:           %s\n" "$_REPORT_SUCCEEDED"
-  printf "  Skipped:           %s\n" "$skipped_total"
-  printf "  Failed:            %s\n" "$failed_total"
-  printf "  Total bytes saved: %s (%s bytes)\n" "$(format_filesize "$_REPORT_TOTAL_SAVED_BYTES")" "$_REPORT_TOTAL_SAVED_BYTES"
-  printf "  Average saved:     %s%%\n" "$average_saved_pct"
+  msg "Size report summary:"
+  printf "${BOLD}${GREEN}Encoded:${ALL_OFF} %s\n" "$_REPORT_SUCCEEDED"
+  printf "${BOLD}${CYAN}Skipped:${ALL_OFF} %s (${BOLD}${YELLOW}Codec:${ALL_OFF} %s / ${BOLD}${YELLOW}Size:${ALL_OFF} %s)\n" "$skipped_total" "$_REPORT_SKIPPED_CODEC" "$_REPORT_SKIPPED_LARGER"
+  printf "${BOLD}${RED}Failed:${ALL_OFF} %s (${BOLD}${YELLOW}Encoding:${ALL_OFF} %s / ${BOLD}${YELLOW}Integrity:${ALL_OFF} %s)\n" "$failed_total" "$_REPORT_ENCODING_FAILED" "$_REPORT_INTEGRITY_FAILED"
+  printf "${BOLD}${MAGENTA}Total bytes saved:${ALL_OFF} %s (${BOLD}${YELLOW}Original:${ALL_OFF} %s / ${BOLD}${YELLOW}New:${ALL_OFF} %s)\n" "$(format_filesize "$_REPORT_TOTAL_SAVED_BYTES")" "$(format_filesize "$_REPORT_TOTAL_ORIGINAL_BYTES")" "$(format_filesize "$_REPORT_TOTAL_NEW_BYTES")"
+  printf "${BOLD}${BLUE}Average saved:${ALL_OFF} %s%%\n" "$average_saved_pct"
 }
 
 # Encode a single media file according to PRESET_NAME.
@@ -1441,6 +1448,7 @@ encode_one() {
     mv -f -- "$temporary_output_file" "$input_file"
     ((_REPORT_SUCCEEDED++))
     _REPORT_TOTAL_ORIGINAL_BYTES=$((_REPORT_TOTAL_ORIGINAL_BYTES + original_filesize))
+    _REPORT_TOTAL_NEW_BYTES=$((_REPORT_TOTAL_NEW_BYTES + new_filesize))
     _REPORT_TOTAL_SAVED_BYTES=$((_REPORT_TOTAL_SAVED_BYTES + filesize_difference))
     msg "Replaced:" "$input_file"
   else