package agent

import "testing"

func TestBackendHost(t *testing.T) {
	tests := []struct {
		name, explicit, iface, server, want string
		wantErr                             bool
	}{
		{"explizit", "100.64.0.42", "", "https://127.0.0.1:8443", "100.64.0.42", false},
		{"explizit schlägt Interface", "192.168.1.5", "lo", "https://127.0.0.1:8443", "192.168.1.5", false},
		{"Interface", "", "lo", "https://127.0.0.1:8443", "127.0.0.1", false},
		{"unbekanntes Interface", "", "gibtsnicht0", "https://127.0.0.1:8443", "", true},
		{"automatisch: Route zum Server", "", "", "https://127.0.0.1:8443", "127.0.0.1", false},
		{"automatisch ohne Port", "", "", "https://127.0.0.1", "127.0.0.1", false},
	}
	for _, tt := range tests {
		got, err := backendHost(tt.explicit, tt.iface, tt.server)
		if (err != nil) != tt.wantErr || got != tt.want {
			t.Errorf("%s: %q, %v; erwartet %q (Fehler=%v)", tt.name, got, err, tt.want, tt.wantErr)
		}
	}
}

func TestDefaultNodeID(t *testing.T) {
	tests := map[string]string{
		"pi":                  "pi",
		"Proxmox-VM.42.local": "proxmox-vm-42-local",
		"web__01":             "web_01",
		"  -host-  ":          "host",
		"äöü-box":             "box",
	}
	for in, want := range tests {
		got, err := DefaultNodeID(in)
		if err != nil || got != want {
			t.Errorf("DefaultNodeID(%q) = %q, %v; erwartet %q", in, got, err, want)
		}
	}
	for _, bad := range []string{"", "---", "äöü"} {
		if _, err := DefaultNodeID(bad); err == nil {
			t.Errorf("DefaultNodeID(%q): erwartet Fehler", bad)
		}
	}
}