package econetmcp

import (
	"strings"
	"testing"

	pb "gitea.libretechconsulting.com/rmcguire/econet-exporter/api/econet/v1alpha1"
)

func TestSummarizeDevices(t *testing.T) {
	tests := []struct {
		name    string
		devices []*pb.Device
		want    string // substring that must appear
	}{
		{"empty", nil, "No EcoNet devices found."},
		{
			name: "single",
			devices: []*pb.Device{{
				FriendlyName: "Garage",
				GenericType:  "heatpumpWaterHeater",
				SerialNumber: "ABC123",
				Mode:         "heat-pump",
				Setpoint:     125,
			}},
			want: "Garage (heatpumpWaterHeater, serial ABC123): mode=heat-pump setpoint=125",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := summarizeDevices(tt.devices)
			if !strings.Contains(got, tt.want) {
				t.Errorf("summarizeDevices() = %q, want substring %q", got, tt.want)
			}
		})
	}
}