MythEclipse/asepharyana-hub-tools
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feat: implement image tools (compress, resize, convert) and PDF tools (merge, split, images-to-pdf)

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Image tools now actually process images:
- Compress: re-encode JPEG with configurable quality
- Resize: Lanczos3 resize with fit modes (inside/fill/crop)
- Convert: cross-format conversion (JPEG/PNG/WebP/GIF/BMP)

PDF tools:
- Merge: combine multiple PDFs into one document
- Split: extract page ranges via pagespec (1-3,5,7-9)
- Images to PDF: embed images as JPEG in A4 pages with scaling
- Compress: re-save PDF with optimized cross-reference table

Also fix metrics format to emit default zero values.

Co-Authored-By: Kilo <kilo@kilo.ai>
This commit is contained in:
asepharyana
2026-07-24 19:52:39 +07:00
co-authored by Kilo
parent 1a606d5c64
commit d4bbde9320
11 changed files with 590 additions and 52 deletions
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backend/gateway/src/metrics.rs
+62 -38
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@@ -97,72 +97,96 @@ impl Metrics {
pub fn format(&self) -> String {
let mut output = String::new();
// ── tools_jobs_total ──
output.push_str("# HELP tools_jobs_total Total jobs processed\n");
output.push_str("# TYPE tools_jobs_total counter\n");
if let Ok(map) = self.jobs_total.lock() {
for ((tool, status), count) in map.iter() {
let val = count.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_jobs_total{{tool=\"{}\",status=\"{}\"}} {}\n",
tool, status, val
));
{
if let Ok(map) = self.jobs_total.lock() {
if map.is_empty() {
output.push_str("tools_jobs_total{tool=\"\",status=\"\"} 0\n");
} else {
for ((tool, status), count) in map.iter() {
let val = count.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_jobs_total{{tool=\"{}\",status=\"{}\"}} {}\n",
tool, status, val
));
}
}
}
}
// ── tools_uploaded_files_total ──
output.push_str("# HELP tools_uploaded_files_total Total uploaded files\n");
output.push_str("# TYPE tools_uploaded_files_total counter\n");
if let Ok(map) = self.uploaded_files_total.lock() {
for ((tool, status), count) in map.iter() {
let val = count.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_uploaded_files_total{{tool=\"{}\",status=\"{}\"}} {}\n",
tool, status, val
));
{
if let Ok(map) = self.uploaded_files_total.lock() {
if map.is_empty() {
output.push_str("tools_uploaded_files_total{tool=\"\",status=\"\"} 0\n");
} else {
for ((tool, status), count) in map.iter() {
let val = count.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_uploaded_files_total{{tool=\"{}\",status=\"{}\"}} {}\n",
tool, status, val
));
}
}
}
}
// ── tools_processing_duration_ms ──
output.push_str("# HELP tools_processing_duration_ms Processing duration histogram\n");
output.push_str("# TYPE tools_processing_duration_ms histogram\n");
if let Ok(map) = self.duration_histogram.lock() {
for (tool, buckets) in map.iter() {
for (i, bucket) in self.duration_buckets.iter().enumerate() {
if let Some(b) = buckets.get(i) {
let val = b.load(Ordering::Relaxed);
if val > 0 {
output.push_str(&format!(
"tools_processing_duration_ms_bucket{{tool=\"{}\",le=\"{}\"}} {}\n",
tool, bucket, val
));
{
if let Ok(map) = self.duration_histogram.lock() {
for (tool, buckets) in map.iter() {
for (i, bucket) in self.duration_buckets.iter().enumerate() {
if let Some(b) = buckets.get(i) {
let val = b.load(Ordering::Relaxed);
if val > 0 {
output.push_str(&format!(
"tools_processing_duration_ms_bucket{{tool=\"{}\",le=\"{}\"}} {}\n",
tool, bucket, val
));
}
}
}
}
}
}
// ── tools_queue_depth ──
output.push_str("# HELP tools_queue_depth Current queue depth\n");
output.push_str("# TYPE tools_queue_depth gauge\n");
if let Ok(map) = self.queue_depth.lock() {
for (tool, depth) in map.iter() {
let val = depth.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_queue_depth{{tool=\"{}\"}} {}\n",
tool, val
));
{
if let Ok(map) = self.queue_depth.lock() {
for (tool, depth) in map.iter() {
let val = depth.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_queue_depth{{tool=\"{}\"}} {}\n",
tool, val
));
}
}
}
// ── tools_rate_limit_hits ──
output.push_str("# HELP tools_rate_limit_hits Total rate limit violations\n");
output.push_str("# TYPE tools_rate_limit_hits counter\n");
if let Ok(map) = self.rate_limit_hits.lock() {
for (tool, count) in map.iter() {
let val = count.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_rate_limit_hits{{tool=\"{}\"}} {}\n",
tool, val
));
{
if let Ok(map) = self.rate_limit_hits.lock() {
for (tool, count) in map.iter() {
let val = count.load(Ordering::Relaxed);
output.push_str(&format!(
"tools_rate_limit_hits{{tool=\"{}\"}} {}\n",
tool, val
));
}
}
}
// ── tools_cleanup_deleted_files ──
output.push_str("# HELP tools_cleanup_deleted_files Total files deleted by cleanup\n");
output.push_str("# TYPE tools_cleanup_deleted_files counter\n");
output.push_str(&format!(