Add cron-friendly report generation script

README.md

@@ -38,3 +38,14 @@ The importer handles rotated logs in order from oldest to newest so entries are
 processed exactly once. If you rerun the script, it only ingests records with a
 timestamp newer than the latest one already stored in the database, preventing
 duplicates.
+
+## Cron Report Generation
+
+Use the `run-reports.sh` script to run all report intervals in one step. The script sets up the Python environment the same way as `run-import.sh`, making it convenient for automation via cron.
+
+```bash
+./run-reports.sh
+```
+
+Running this script will create or update the hourly, daily, weekly and monthly reports under `output/`.
+

run-reports.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -e
+
+# Ensure virtual environment exists
+if [ ! -d ".venv" ]; then
+    echo "[INFO] Creating virtual environment..."
+    python3 -m venv .venv
+    source .venv/bin/activate
+    echo "[INFO] Installing dependencies..."
+    pip install --upgrade pip
+    if [ -f requirements.txt ]; then
+        pip install -r requirements.txt
+    else
+        echo "[WARN] requirements.txt not found, skipping."
+    fi
+else
+    echo "[INFO] Activating virtual environment..."
+    source .venv/bin/activate
+fi
+
+# Generate all reports
+echo "[INFO] Generating reports..."
+python scripts/generate_reports.py hourly
+python scripts/generate_reports.py daily
+python scripts/generate_reports.py weekly
+python scripts/generate_reports.py monthly
+
+# Deactivate to keep cron environment clean
+if type deactivate >/dev/null 2>&1; then
+    deactivate
+fi