feat: add getting computer data route

internal/handler/computer.go

@@ -2,6 +2,7 @@ package handler
 
 import (
 	"backend/internal/model"
+	"backend/internal/service"
 	"encoding/json"
 	"log/slog"
 	"net/http"
@@ -25,12 +26,14 @@ func HandleComputerWebSocket(w http.ResponseWriter, r *http.Request) {
 	defer conn.Close()
 
 	slog.Info("Websocket connection established!")
+	online := true
 
 	// Read messages
 	for {
 		_, message, err := conn.ReadMessage()
 		if err != nil {
 			slog.Error("WebSocket connection closed by client", slog.Any("error", err))
+			online = false
 			break
 		}
 
@@ -40,6 +43,12 @@ func HandleComputerWebSocket(w http.ResponseWriter, r *http.Request) {
 			continue
 		}
 
+		service.AddComputerData(online, clientMessage)
 		slog.Info("Recieved message", slog.Any("message", clientMessage))
 	}
 }
+
+func HandleComputerGraphData(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(service.ComputerData)
+}

internal/model/computer.go

@@ -4,3 +4,9 @@ type ComputerWebSocketMessage struct {
 	Cpu uint8 `json:"cpu"`
 	Ram uint8 `json:"ram"`
 }
+
+type ComputerGraphData struct {
+	Online bool  `json:"online"`
+	Cpu    []int `json:"cpu"`
+	Ram    []int `json:"ram"`
+}

internal/server/router.go

@@ -42,6 +42,7 @@ func NewRouter() {
 	r.Get("/currently-playing", handler.HandleGetCurrentlyPlaying)
 	r.Get("/status", handler.HandleGetStatus)
 
+	r.Get("/computer", handler.HandleComputerGraphData)
 	r.Get("/ws/computer", handler.HandleComputerWebSocket)
 
 	port := os.Getenv("PORT")

internal/service/computer.go

@@ -0,0 +1,18 @@
+package service
+
+import (
+	"backend/internal/model"
+)
+
+var ComputerData model.ComputerGraphData
+
+func AddComputerData(online bool, clientMessage model.ComputerWebSocketMessage) {
+	ComputerData.Online = online
+	ComputerData.Cpu = append(ComputerData.Cpu, int(clientMessage.Cpu))
+	ComputerData.Ram = append(ComputerData.Ram, int(clientMessage.Ram))
+
+	if len(ComputerData.Cpu) > 20 {
+		ComputerData.Cpu = ComputerData.Cpu[1:]
+		ComputerData.Ram = ComputerData.Ram[1:]
+	}
+}