package collector

import (
	"log/slog"
	"strings"
	"testing"

	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/client_golang/prometheus/testutil"
)

func TestBackupCollector(t *testing.T) {
	client := newTestClient(t, map[string]string{
		"/cluster/backup-info/not-backed-up": "backup_not_backed_up.json",
	})

	collector := newBackupCollector(slog.Default())
	adapter := &testCollectorAdapter{client: client, collector: collector}

	reg := prometheus.NewRegistry()
	reg.MustRegister(adapter)

	expected := `
# HELP pve_not_backed_up_info Information about a guest that is not backed up.
# TYPE pve_not_backed_up_info gauge
pve_not_backed_up_info{id="qemu/100"} 1
# HELP pve_not_backed_up_total Whether a guest is not backed up (1 = not backed up).
# TYPE pve_not_backed_up_total gauge
pve_not_backed_up_total{id="qemu/100"} 1
`

	if err := testutil.GatherAndCompare(reg, strings.NewReader(expected),
		"pve_not_backed_up_total", "pve_not_backed_up_info",
	); err != nil {
		t.Errorf("unexpected metrics: %s", err)
	}
}