fix: type-coverage.yml

Author: HDVinnie

.github/workflows/type-coverage.yml

@@ -25,17 +25,65 @@ jobs:
                 env:
                     COMPOSER_AUTH: ${{ secrets.COMPOSER_AUTH }}
                 run: composer install --no-ansi --no-interaction --no-scripts --no-progress --prefer-dist
+            
+            -   name: Restore Baseline Coverage Cache
+                uses: actions/cache/restore@v4
+                id: cache-baseline
+                with:
+                    path: baseline-type-coverage.txt
+                    key: type-coverage-baseline-master
+            
             -   name: Run Type Coverage
                 run: |
                     ./vendor/bin/pest --type-coverage --min=0 > type-coverage.txt
                     cat type-coverage.txt
+            
             -   name: Extract Coverage Percentage
                 id: coverage
                 run: |
                     COVERAGE=$(grep -oP 'Total: \K[0-9.]+' type-coverage.txt || echo "0")
                     echo "percentage=$COVERAGE" >> $GITHUB_OUTPUT
                     echo "Type Coverage: $COVERAGE%"
+            
+            -   name: Compare Coverage Against Baseline
+                if: github.event_name == 'pull_request'
+                run: |
+                    CURRENT_COVERAGE=${{ steps.coverage.outputs.percentage }}
+                    
+                    if [ -f baseline-type-coverage.txt ]; then
+                        BASELINE_COVERAGE=$(cat baseline-type-coverage.txt)
+                        echo "📊 Current Coverage: $CURRENT_COVERAGE%"
+                        echo "📈 Baseline Coverage: $BASELINE_COVERAGE%"
+                        
+                        # Use bc for floating point comparison
+                        if (( $(echo "$CURRENT_COVERAGE < $BASELINE_COVERAGE" | bc -l) )); then
+                            DIFF=$(echo "$BASELINE_COVERAGE - $CURRENT_COVERAGE" | bc -l)
+                            echo "❌ Type coverage decreased by $DIFF%"
+                            echo "::error::Type coverage dropped from $BASELINE_COVERAGE% to $CURRENT_COVERAGE%. Please add type declarations."
+                            exit 1
+                        else
+                            DIFF=$(echo "$CURRENT_COVERAGE - $BASELINE_COVERAGE" | bc -l)
+                            echo "✅ Type coverage maintained or improved (+$DIFF%)"
+                        fi
+                    else
+                        echo "⚠️  No baseline coverage found. Skipping comparison."
+                        echo "::warning::No baseline type coverage found. Baseline will be established when merged to master."
+                    fi
+            
+            -   name: Save Baseline Coverage to File
+                if: github.event_name == 'push' && github.ref == 'refs/heads/master' && github.repository == 'HDInnovations/UNIT3D'
+                run: |
+                    echo "${{ steps.coverage.outputs.percentage }}" > baseline-type-coverage.txt
+            
+            -   name: Save Baseline Coverage Cache
+                if: github.event_name == 'push' && github.ref == 'refs/heads/master' && github.repository == 'HDInnovations/UNIT3D'
+                uses: actions/cache/save@v4
+                with:
+                    path: baseline-type-coverage.txt
+                    key: type-coverage-baseline-master
+            
             -   name: Create Coverage Badge
+                if: github.event_name == 'push' && github.ref == 'refs/heads/master' && github.repository == 'HDInnovations/UNIT3D'
                 uses: schneegans/dynamic-badges-action@v1.7.0
                 with:
                     auth: ${{ secrets.GIST_SECRET }}