Add global report generation

tests/test_reports.py

@@ -80,6 +80,14 @@ def sample_reports(tmp_path):
     FROM logs
     GROUP BY bucket
     ORDER BY bucket
+- name: domain_totals
+  global: true
+  query: |
+    SELECT host AS bucket,
+           COUNT(*) AS value
+    FROM logs
+    GROUP BY host
+    ORDER BY value DESC
 """
     )
     return cfg
@@ -161,3 +169,23 @@ def test_generate_root_index(tmp_path, sample_reports, monkeypatch):
     # check for domain options
     assert '<option value="foo.com">' in content
     assert '<option value="bar.com">' in content
+
+
+def test_global_reports_once(tmp_path, sample_reports, monkeypatch):
+    db_path = tmp_path / "database" / "ngxstat.db"
+    setup_db(db_path)
+
+    monkeypatch.setattr(gr, "DB_PATH", db_path)
+    monkeypatch.setattr(gr, "OUTPUT_DIR", tmp_path / "output")
+    monkeypatch.setattr(gr, "REPORT_CONFIG", sample_reports)
+    monkeypatch.setattr(
+        gr, "TEMPLATE_DIR", Path(__file__).resolve().parents[1] / "templates"
+    )
+
+    gr._generate_global()
+    gr._generate_interval("hourly")
+
+    global_snippet = tmp_path / "output" / "global" / "domain_totals.html"
+    assert global_snippet.exists()
+    assert not (tmp_path / "output" / "hourly" / "domain_totals.html").exists()
+