ui: trend panel + range selector on host repo page

internal/server/http/ui_repo_trend_test.go

@@ -0,0 +1,89 @@
+package http
+
+import (
+	"context"
+	stdhttp "net/http"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.dcglab.co.uk/steve/restic-manager/internal/store"
+)
+
+func getTrend(t *testing.T, baseURL, hostID, rangeKey string, cookie *stdhttp.Cookie) string {
+	t.Helper()
+	client := &stdhttp.Client{
+		CheckRedirect: func(_ *stdhttp.Request, _ []*stdhttp.Request) error {
+			return stdhttp.ErrUseLastResponse
+		},
+	}
+	url := baseURL + "/hosts/" + hostID + "/repo/trend"
+	if rangeKey != "" {
+		url += "?range=" + rangeKey
+	}
+	req, err := stdhttp.NewRequest("GET", url, nil)
+	if err != nil {
+		t.Fatalf("new request: %v", err)
+	}
+	req.AddCookie(cookie)
+	res, err := client.Do(req)
+	if err != nil {
+		t.Fatalf("GET %s: %v", url, err)
+	}
+	defer res.Body.Close()
+	if res.StatusCode != stdhttp.StatusOK {
+		t.Fatalf("GET %s: want 200, got %d", url, res.StatusCode)
+	}
+	body := make([]byte, 0, 1<<20)
+	buf := make([]byte, 4096)
+	for {
+		n, rerr := res.Body.Read(buf)
+		body = append(body, buf[:n]...)
+		if rerr != nil {
+			break
+		}
+	}
+	return string(body)
+}
+
+func TestUIRepoTrend_30dRange(t *testing.T) {
+	t.Parallel()
+	_, baseURL, st := newTestServerWithUI(t)
+	cookie := loginAsAdmin(t, st)
+	hostID := makeHost(t, st, "h-trend")
+	ctx := context.Background()
+
+	now := time.Now().UTC()
+	for i := 0; i < 5; i++ {
+		day := now.AddDate(0, 0, -i).Format("2006-01-02")
+		v := int64(1000 + i*100)
+		c := int64(10 + i)
+		if err := st.UpsertHostRepoStatsHistory(ctx, hostID, day,
+			store.HostRepoStats{TotalSizeBytes: &v, SnapshotCount: &c}, now); err != nil {
+			t.Fatalf("seed %s: %v", day, err)
+		}
+	}
+
+	body := getTrend(t, baseURL, hostID, "30d", cookie)
+	if !strings.Contains(body, `class="repo-trend-chart"`) {
+		t.Errorf("expected repo-trend-chart SVG in fragment")
+	}
+	if !strings.Contains(body, `id="repo-trend-chart"`) {
+		t.Errorf("expected outer wrapper id=repo-trend-chart")
+	}
+	if !strings.Contains(body, `data-range="30d"`) {
+		t.Errorf("expected data-range=30d")
+	}
+}
+
+func TestUIRepoTrend_InvalidRangeFallsBackTo30d(t *testing.T) {
+	t.Parallel()
+	_, baseURL, st := newTestServerWithUI(t)
+	cookie := loginAsAdmin(t, st)
+	hostID := makeHost(t, st, "h-trend2")
+
+	body := getTrend(t, baseURL, hostID, "banana", cookie)
+	if !strings.Contains(body, `data-range="30d"`) {
+		t.Errorf("expected data-range=30d on invalid range fallback")
+	}
+}