feat: add /status route

.env.example

@@ -1,6 +1,12 @@
 # Port for the server
 PORT=8888
+
 # Your last.fm username
 LASTFM_USERNAME="axolotlmaid"
-# API Key for last.fm
+# API key for last.fm
 LASTFM_API_KEY="API_KEY_GOES_HERE"
+
+# URL for Uptime Kuma
+UPTIME_KUMA_URL="http://localhost:3001/metrics"
+# API key for Uptime Kuma
+UPTIME_KUMA_API_KEY="API_KEY_GOES_HERE"

internal/handler/status.go

@@ -0,0 +1,12 @@
+package handler
+
+import (
+	"backend/internal/worker"
+	"encoding/json"
+	"net/http"
+)
+
+func HandleGetStatus(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(worker.StatusData)
+}

internal/model/status.go

@@ -0,0 +1,8 @@
+package model
+
+type StatusData struct {
+	Success bool  `json:"success"`
+	Website uint8 `json:"website"`
+	Api     uint8 `json:"api"`
+	Files   uint8 `json:"files"`
+}

internal/server/router.go

@@ -38,8 +38,8 @@ func NewRouter() {
 
 	r.Get("/visit-counter", handler.HandleGetVisitCounter)
 	r.With(httprate.LimitByRealIP(1, time.Hour)).Patch("/visit-counter", handler.HandlePatchVisitCounter)
-
 	r.Get("/currently-playing", handler.HandleGetCurrentlyPlaying)
+	r.Get("/status", handler.HandleGetStatus)
 
 	port := os.Getenv("PORT")
 	if len(port) == 0 {

internal/service/status.go

@@ -0,0 +1,72 @@
+package service
+
+import (
+	"backend/internal/model"
+	"bufio"
+	"log/slog"
+	"net/http"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+func GetStatuses() model.StatusData {
+	data := model.StatusData{
+		Success: false,
+		Website: 0,
+		Api:     0,
+		Files:   0,
+	}
+
+	req, err := http.NewRequest("GET", os.Getenv("UPTIME_KUMA_URL"), nil)
+	if err != nil {
+		slog.Error("Error creating request for Uptime Kuma", slog.Any("error", err))
+		return data
+	}
+	req.SetBasicAuth("", os.Getenv("UPTIME_KUMA_API_KEY"))
+
+	client := &http.Client{}
+	res, err := client.Do(req)
+	if err != nil {
+		slog.Error("Error sending request for Uptime Kuma", slog.Any("error", err))
+		return data
+	}
+	defer res.Body.Close()
+
+	regex := regexp.MustCompile(`monitor_name="([^"]+)"[^}]*} (\d+)`)
+	statusMap := map[string]*uint8{
+		"website": &data.Website,
+		"api":     &data.Api,
+		"files":   &data.Files,
+	}
+
+	scanner := bufio.NewScanner(res.Body)
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		if strings.HasPrefix(line, "monitor_status{") {
+			matches := regex.FindStringSubmatch(line)
+			monitorName := matches[1]
+			status := matches[2]
+
+			statusCode, err := strconv.Atoi(status)
+			if err != nil {
+				slog.Error("Error parsing bool for Uptime Kuma", slog.Any("error", err))
+				statusCode = 0
+			}
+
+			if field, exists := statusMap[monitorName]; exists {
+				*field = uint8(statusCode)
+			}
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		slog.Error("Error reading metrics for Uptime Kuma", slog.Any("error", err))
+		return data
+	}
+
+	data.Success = true
+	return data
+}

internal/worker/status.go

@@ -0,0 +1,20 @@
+package worker
+
+import (
+	"backend/internal/model"
+	"backend/internal/service"
+	"log/slog"
+	"time"
+)
+
+var StatusData model.StatusData
+
+func StartStatusWorker() {
+	slog.Info("Starting status worker...")
+	StatusData = service.GetStatuses()
+
+	for range time.Tick(5 * time.Minute) {
+		slog.Info("Requesting Uptime Kuma...")
+		StatusData = service.GetStatuses()
+	}
+}

internal/worker/worker.go

@@ -2,4 +2,5 @@ package worker
 
 func StartWorkers() {
 	go StartLastFMWorker()
+	go StartStatusWorker()
 }