Added edgeapps package, cleaned up redundancies

internal/edgeapps/edgeapps.go

@@ -0,0 +1,64 @@
+package edgeapps
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+)
+
+// EdgeApp : Struct representing an EdgeApp in the system
+type EdgeApp struct {
+	ID                 string        `json:"id"`
+	Name               string        `json:"name"`
+	Status             EdgeAppStatus `json:"status"`
+	InternetAccessible bool          `json:"internet_accessible"`
+	InternetURL        string        `json:"internet_url"`
+	NetworkURL         string        `json:"network_url"`
+}
+
+// EdgeAppStatus : Struct representing possible EdgeApp statuses (code + description)
+type EdgeAppStatus struct {
+	ID          int    `json:"id"`
+	Description string `json:"description"`
+}
+
+// GetEdgeApps : Returns a list of EdgeApp struct filled with information
+func GetEdgeApps() []EdgeApp {
+
+	var edgeApps []EdgeApp
+
+	// Building list of available edgeapps in the system.
+	configFilename := "edgebox-compose.yml"
+	// envFilename := "edgebox.env"
+	// postinstallFilename := "edgebox-postinstall.txt"
+	edgeAppsPath := "/home/system/components/apps"
+	var edgeAppsList []string
+
+	files, err := ioutil.ReadDir(edgeAppsPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, f := range files {
+		fmt.Println(f.Name())
+		if f.IsDir() {
+			// It is a folder that most probably contains an EdgeApp.
+			// To be fully sure, test that edgebox-compose.yml file exists in the target directory.
+			_, err := os.Stat("/home/system/components/apps/" + f.Name() + "/" + configFilename)
+			if !os.IsNotExist(err) {
+				// File exists. Start digging!
+				edgeAppsList = append(edgeAppsList, f.Name())
+			}
+
+		}
+	}
+
+	// Querying to see which apps are running.
+	// cmdargs = []string{"ps", "-a"}
+	// executeCommand("docker", cmdargs)
+	// (...)
+
+	return edgeApps
+
+}