enhance: split PR created vs merged metrics for accuracy

- Add separate steps for PR created metrics and PR merged metrics
- Query PRs by merge date for more accurate merge timing data
- Parse both pr_created_metrics.md and pr_merged_metrics.md files
- Maintain backward compatibility with fallback to old pr_metrics.md
- Fixes timing discrepancy where merge time was faster than response time

.github/scripts/parse-metrics.mjs

@@ -73,30 +73,49 @@ function main() {
 		console.log('⚠️  No issue_metrics.md found');
 	}
 
-	// Parse PR metrics
-	if (existsSync('pr_metrics.md')) {
-		console.log('📄 Found pr_metrics.md, parsing...');
-		const prContent = readFileSync('pr_metrics.md', 'utf8');
+	// Parse PR created metrics
+	if (existsSync('pr_created_metrics.md')) {
+		console.log('📄 Found pr_created_metrics.md, parsing...');
+		const prCreatedContent = readFileSync('pr_created_metrics.md', 'utf8');
 
 		metrics.prs_created = parseCountMetric(
-			prContent,
+			prCreatedContent,
 			'Total number of items created'
 		);
-		// Prefer merged; fall back to closed if the generator doesn't emit "merged"
+		metrics.pr_avg_first_response = parseMetricsTable(
+			prCreatedContent,
+			'Time to first response'
+		);
+	} else {
+		console.log('⚠️  No pr_created_metrics.md found');
+	}
+
+	// Parse PR merged metrics (for more accurate merge data)
+	if (existsSync('pr_merged_metrics.md')) {
+		console.log('📄 Found pr_merged_metrics.md, parsing...');
+		const prMergedContent = readFileSync('pr_merged_metrics.md', 'utf8');
+
+		metrics.prs_merged = parseCountMetric(
+			prMergedContent,
+			'Total number of items created'
+		);
+		// For merged PRs, "Time to close" is actually time to merge
+		metrics.pr_avg_merge_time = parseMetricsTable(prMergedContent, 'Time to close');
+	} else {
+		console.log('⚠️  No pr_merged_metrics.md found');
+		// Fallback: try old pr_metrics.md if it exists
+		if (existsSync('pr_metrics.md')) {
+			console.log('📄 Falling back to pr_metrics.md...');
+			const prContent = readFileSync('pr_metrics.md', 'utf8');
+
 			const mergedCount = parseCountMetric(prContent, 'Number of items merged');
 			metrics.prs_merged = mergedCount || parseCountMetric(prContent, 'Number of items closed');
 
-		metrics.pr_avg_first_response = parseMetricsTable(
-			prContent,
-			'Time to first response'
-		);
-		// Prefer "Average time to merge"; fall back to "Time to close"
 			const maybeMergeTime = parseMetricsTable(prContent, 'Average time to merge');
 			metrics.pr_avg_merge_time = maybeMergeTime !== 'N/A'
 				? maybeMergeTime
 				: parseMetricsTable(prContent, 'Time to close');
-	} else {
-		console.log('⚠️  No pr_metrics.md found');
+		}
 	}
 
 	// Output for GitHub Actions

.github/workflows/weekly-metrics-discord.yml

@@ -46,12 +46,19 @@ jobs:
           HIDE_LABEL_METRICS: false
           OUTPUT_FILE: issue_metrics.md
 
-      - name: Generate PR metrics
+      - name: Generate PR created metrics
         uses: github/issue-metrics@v3
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SEARCH_QUERY: "repo:${{ github.repository }} is:pr created:${{ env.first_day }}..${{ env.last_day }}"
-          OUTPUT_FILE: pr_metrics.md
+          OUTPUT_FILE: pr_created_metrics.md
+
+      - name: Generate PR merged metrics
+        uses: github/issue-metrics@v3
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          SEARCH_QUERY: "repo:${{ github.repository }} is:pr is:merged merged:${{ env.first_day }}..${{ env.last_day }}"
+          OUTPUT_FILE: pr_merged_metrics.md
 
       - name: Parse metrics
         id: metrics