install go2rtc on bob

installs_on_host/go2rtc/internal/nest/README.md

@@ -0,0 +1,11 @@
+# Google Nest
+
+[`new in v1.6.0`](https://github.com/AlexxIT/go2rtc/releases/tag/v1.6.0)
+
+For simplicity, it is recommended to connect the Nest/WebRTC camera to the [Home Assistant](../hass/README.md). 
+But if you can somehow get the below parameters, Nest/WebRTC source will work without Home Assistant.
+
+```yaml
+streams:
+  nest-doorbell: nest:?client_id=***&client_secret=***&refresh_token=***&project_id=***&device_id=***
+```

installs_on_host/go2rtc/internal/nest/init.go

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+package nest
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/AlexxIT/go2rtc/internal/api"
+	"github.com/AlexxIT/go2rtc/internal/streams"
+	"github.com/AlexxIT/go2rtc/pkg/core"
+	"github.com/AlexxIT/go2rtc/pkg/nest"
+)
+
+func Init() {
+	streams.HandleFunc("nest", func(source string) (core.Producer, error) {
+		return nest.Dial(source)
+	})
+
+	api.HandleFunc("api/nest", apiNest)
+}
+
+func apiNest(w http.ResponseWriter, r *http.Request) {
+	query := r.URL.Query()
+	cliendID := query.Get("client_id")
+	cliendSecret := query.Get("client_secret")
+	refreshToken := query.Get("refresh_token")
+	projectID := query.Get("project_id")
+
+	nestAPI, err := nest.NewAPI(cliendID, cliendSecret, refreshToken)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	devices, err := nestAPI.GetDevices(projectID)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	var items []*api.Source
+
+	for _, device := range devices {
+		query.Set("device_id", device.DeviceID)
+		query.Set("protocols", strings.Join(device.Protocols, ","))
+
+		items = append(items, &api.Source{
+			Name: device.Name, URL: "nest:?" + query.Encode(),
+		})
+	}
+
+	api.ResponseSources(w, items)
+}