first mockup in go

source/main.go

@@ -0,0 +1,138 @@
+package main
+
+import (
+//	"encoding/json"
+"github.com/go-macaron/pongo2"
+
+"gopkg.in/macaron.v1"
+	"net/http"
+	"log"
+//    "periph.io/x/periph"
+    "periph.io/x/periph/host"
+    "periph.io/x/periph/conn/i2c"
+	"periph.io/x/periph/conn/i2c/i2creg"
+	"time"
+	"github.com/spf13/viper"
+)
+
+type Dictionary map[string]interface{}
+
+func readConfig() {
+	viper.SetConfigName("openpdu.yaml") // name of config file (without extension)
+	viper.SetConfigType("yaml") 
+	viper.AddConfigPath("/etc/openpdu/")   // path to look for the config file in
+	viper.AddConfigPath(".")               // optionally look for config in the working directory
+	err := viper.ReadInConfig() // Find and read the config file
+	if err != nil { // Handle errors reading the config file
+		log.Printf("Fatal error config file: %s \n", err)
+	}
+
+	viper.SetDefault("hostname","openpdu")
+}
+
+func initI2C() {
+	// Make sure periph is initialized.
+	if _, err := host.Init(); err != nil {
+		log.Fatal(err)
+	}
+
+	// Use i2creg I²C bus registry to find the first available I²C bus.
+	b, err := i2creg.Open("/dev/i2c-0")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer b.Close()
+
+	// bus 0
+	// Dev is a valid conn.Conn.
+	d := &i2c.Dev{Addr: 0x27, Bus: b}
+
+	// Send a command 0x10 and expect a 5 bytes reply.
+//	write := []byte{0x10}
+	write := []byte{0x0}
+//	read := make([]byte, 5)
+//	if err := d.Tx(write, read); err != nil {
+	if _, err := d.Write(write); err != nil {
+			log.Fatal(err)
+	}
+
+
+	for i := 0; i < 2; i++ {
+
+		write := []byte{0x0A}
+		read := make([]byte, 5)
+		if err := d.Tx(write, read); err != nil {
+				log.Fatal(err)
+		}
+		log.Printf("%v\n", read)
+
+		time.Sleep(500 * time.Millisecond)
+	}
+
+}
+
+
+
+// func myHandler(ctx *macaron.Context) string {
+// 	ctx.Data["name"] = "jeremy"
+// 	ctx.HTML(200, "hello") // 200 is the response code.
+
+// 	return "The request path is: " + ctx.Req.RequestURI
+// }
+
+func startServer() {
+	m := macaron.Classic()
+	m.Use(pongo2.Pongoer())
+	m.Use(macaron.Static("static"))
+//	m.Get("/", myHandler)
+
+    m.Get("/", func(ctx *macaron.Context) {
+		ctx.Data["pluglist"] = []Dictionary{
+			{"id": 1, "description": "p1"},
+			{"id": 2, "description": "p2"},
+			{"id": 3, "description": "p3"},
+			{"id": 4, "description": "p4"},
+			{"id": 5, "description": "p5"},
+			{"id": 6, "description": "p6"},
+			{"id": 7, "description": "p7"},
+			{"id": 8, "description": "p8"},
+		}
+        ctx.HTML(200, "status") // 200 is the response code.
+    })
+
+	m.Get("/boards", func(ctx *macaron.Context) {
+        ctx.HTML(200, "boards") // 200 is the response code.
+    })
+
+	log.Println("Server is running...")
+	log.Println(http.ListenAndServe("0.0.0.0:4000", m))
+}
+
+func main() {
+
+	readConfig()
+
+	nam := viper.Get("name")
+	log.Printf("name: %v\n", nam)
+
+
+	initI2C()
+	startServer()
+}
+
+
+
+// https://github.com/ColorlibHQ/AdminLTE/archive/v2.4.17.tar.gz
+
+/* TODO
+
+- config reset gpio
+- classi per board
+- classi per outlet
+- fai funzionare toggle
+- scan i2c
+- impostazioni log
+- impostazioni mqtt
+
+
+   */