package webui

import (
	"path/filepath"
	"testing"
	"time"

	"bee/audit/internal/app"
)

func TestNextHealthPollIntervalBacksOffAndResetsOnChange(t *testing.T) {
	interval := healthPollIntervalMin
	for i := 0; i < 10; i++ {
		interval = nextHealthPollInterval(interval, false)
		if interval > healthPollIntervalMax {
			t.Fatalf("interval=%s exceeded cap %s after %d steady ticks", interval, healthPollIntervalMax, i+1)
		}
	}
	if interval != healthPollIntervalMax {
		t.Fatalf("interval=%s want cap %s after repeated steady ticks", interval, healthPollIntervalMax)
	}

	// A change resets straight back to the fast floor, regardless of how
	// far the backoff had climbed.
	if got := nextHealthPollInterval(interval, true); got != healthPollIntervalMin {
		t.Fatalf("interval after change=%s want floor %s", got, healthPollIntervalMin)
	}
}

func TestHealthPollerPollPSUUnavailableReturnsFalseWithoutPanic(t *testing.T) {
	// ipmitool is not present in this test environment, so pollPSU must
	// degrade to a no-op (false, no crash) rather than erroring out the
	// poller loop.
	db, err := app.OpenComponentStatusDB(filepath.Join(t.TempDir(), "component-status.json"))
	if err != nil {
		t.Fatal(err)
	}
	p := newHealthPoller(db)
	if p.interval != healthPollIntervalMin {
		t.Fatalf("initial interval=%s want floor %s", p.interval, healthPollIntervalMin)
	}
	if got := p.pollPSU(); got {
		t.Fatalf("pollPSU()=%v want false when ipmitool is unavailable", got)
	}
}

func TestHealthPollIntervalBoundsAreSane(t *testing.T) {
	if healthPollIntervalMin >= healthPollIntervalMax {
		t.Fatalf("min %s must be less than max %s", healthPollIntervalMin, healthPollIntervalMax)
	}
	if healthPollIntervalMin != 60*time.Second {
		t.Fatalf("min=%s want 60s (unchanged default poll rate)", healthPollIntervalMin)
	}
}