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feat(prometheus-direct-charting): slice 1 — prom range query + chart rebrand

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Add PrometheusWidgetSource._fetch_chart hitting /api/v1/query_range directly
(SC-101..104). New shared helpers in widgets/prometheus_range.py:
step_for_window (window preset -> step, ~200pts) and normalize_prometheus_matrix
(extracted label/dedup rule, retargeted at Prom matrix, robust to malformed
data). Chart widget kind moved grafana->prometheus in both registries;
GrafanaChartWidget renamed -> PrometheusChartWidget (git mv, recharts body
preserved). Grafana binding/service untouched (removed in slice 3).

Backend: 298 pytest pass, ruff clean. Frontend: 128 vitest pass, build+lint green.
This commit is contained in:
Developer
2026-07-08 21:51:49 +00:00
parent d906b0392b
commit 5dad98231f
12 changed files with 383 additions and 56 deletions
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backend/tests/test_services.py
+1 -1
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@@ -100,7 +100,7 @@ def test_authentik_service_definition():
def test_definitions_declare_widget_kinds():
assert {wk.kind for wk in get_service_definition("grafana").widget_kinds} == {"link", "chart"}
assert {wk.kind for wk in get_service_definition("prometheus").widget_kinds} == {"metric"}
assert {wk.kind for wk in get_service_definition("prometheus").widget_kinds} == {"metric", "chart"}
assert {wk.kind for wk in get_service_definition("alertmanager").widget_kinds} == {"active_alerts"}
assert {wk.kind for wk in get_service_definition("jellyfin").widget_kinds} == {"activity", "now_playing"}
assert get_service_definition("nextcloud").widget_kinds == []