From cb00405041ee4714b6e817e9570cfa10ae972840 Mon Sep 17 00:00:00 2001 From: nsfisis Date: Mon, 27 Apr 2026 21:20:10 +0900 Subject: feat(backend): adapt feed fetch interval to update frequency Add per-feed fetch_interval_seconds (clamped to [1h, 24h]) that halves on new articles and grows 1.5x when a fetch yields nothing, replacing the fixed 1h schedule with the 10min cooldown filter. Scheduler tick shortened to 30min so the 1h floor is honored with reasonable precision. --- backend/cmd/serve_test.go | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 backend/cmd/serve_test.go (limited to 'backend/cmd/serve_test.go') diff --git a/backend/cmd/serve_test.go b/backend/cmd/serve_test.go new file mode 100644 index 0000000..82b7d53 --- /dev/null +++ b/backend/cmd/serve_test.go @@ -0,0 +1,30 @@ +package cmd + +import "testing" + +func TestNextFetchInterval(t *testing.T) { + tests := []struct { + name string + current int64 + hadNewArticles bool + want int64 + }{ + {"new articles halve from mid-range", 14400, true, 7200}, + {"new articles halve from max", maxFetchIntervalSeconds, true, 43200}, + {"new articles clamp at min when halving below", 3600, true, minFetchIntervalSeconds}, + {"new articles clamp at min from slightly above", 4000, true, minFetchIntervalSeconds}, + {"no articles grow by 1.5x from min", minFetchIntervalSeconds, false, 5400}, + {"no articles grow by 1.5x from mid-range", 14400, false, 21600}, + {"no articles clamp at max", maxFetchIntervalSeconds, false, maxFetchIntervalSeconds}, + {"no articles clamp at max from slightly below", 60000, false, maxFetchIntervalSeconds}, + } + + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + got := nextFetchInterval(tt.current, tt.hadNewArticles) + if got != tt.want { + t.Errorf("nextFetchInterval(%d, %v) = %d, want %d", tt.current, tt.hadNewArticles, got, tt.want) + } + }) + } +} -- cgit v1.3.1