Improved admin page

pages/admin/admin.go

@@ -1,9 +1,16 @@
 package admin
 
 import (
+	"time"
+
 	"github.com/aerogo/aero"
+	"github.com/animenotifier/arn"
 	"github.com/animenotifier/notify.moe/components"
 	"github.com/animenotifier/notify.moe/utils"
+	"github.com/shirou/gopsutil/cpu"
+	"github.com/shirou/gopsutil/disk"
+	"github.com/shirou/gopsutil/host"
+	"github.com/shirou/gopsutil/mem"
 )
 
 // Get admin page.
@@ -14,5 +21,47 @@ func Get(ctx *aero.Context) string {
 		return ctx.Redirect("/")
 	}
 
-	return ctx.HTML(components.Admin(user))
+	// CPU
+	cpuUsage := 0.0
+	cpuUsages, err := cpu.Percent(1*time.Second, false)
+
+	if err == nil {
+		cpuUsage = cpuUsages[0]
+	}
+
+	// Memory
+	memUsage := 0.0
+	memInfo, _ := mem.VirtualMemory()
+
+	if err == nil {
+		memUsage = memInfo.UsedPercent
+	}
+
+	// Disk
+	diskUsage := 0.0
+	diskInfo, err := disk.Usage("/")
+
+	if err == nil {
+		diskUsage = diskInfo.UsedPercent
+	}
+
+	// Host
+	platform, family, platformVersion, _ := host.PlatformInformation()
+	kernelVersion, err := host.KernelVersion()
+
+	return ctx.HTML(components.Admin(user, cpuUsage, memUsage, diskUsage, platform, family, platformVersion, kernelVersion))
+}
+
+func average(floatSlice []float64) float64 {
+	if len(floatSlice) == 0 {
+		return arn.DefaultAverageRating
+	}
+
+	var sum float64
+
+	for _, value := range floatSlice {
+		sum += value
+	}
+
+	return sum / float64(len(floatSlice))
 }