Add envitron support

envitron/bind.go

@@ -0,0 +1,47 @@
+package envitron
+
+import (
+	"encoding/json"
+	"io"
+
+	"github.com/labstack/echo"
+)
+
+type jsonError struct {
+	Message string `json:"error"`
+}
+
+func (e jsonError) Error() string {
+	return e.Message
+}
+
+type bindError struct {
+	Message string `json:"error"`
+	Offset  int64  `json:"offset"`
+	Field   string `json:"field,omitempty"`
+}
+
+func (e bindError) Error() string {
+	return e.Message
+}
+
+type jsonBinder struct{}
+
+func (b jsonBinder) Bind(i interface{}, c echo.Context) error {
+	err := json.NewDecoder(c.Request().Body).Decode(i)
+	if err == nil {
+		return nil
+	}
+
+	switch e := err.(type) {
+	case *json.SyntaxError:
+		return bindError{Message: `Syntax error`, Offset: e.Offset, Field: ``}
+	case *json.UnmarshalTypeError:
+		return bindError{Message: `Type error`, Offset: e.Offset, Field: e.Field}
+	}
+
+	if err == io.ErrUnexpectedEOF || err == io.EOF {
+		return jsonError{`Unexpected EOF`}
+	}
+	return jsonError{`Unknown error occurred while parsing JSON`}
+}

envitron/receive.go

@@ -0,0 +1,62 @@
+package envitron
+
+import (
+	"strconv"
+	"time"
+
+	"git.fuyu.moe/5GPowerQuality/parser/data"
+	"git.fuyu.moe/5GPowerQuality/parser/shared"
+	"github.com/labstack/echo"
+)
+
+func ReceiveData() {
+	e := echo.New()
+	e.Binder = jsonBinder{}
+
+	e.POST(`/`, handleReq)
+
+	e.Start(`:44444`)
+}
+
+type input struct {
+	Time    shared.UnixTimestamp `json:"timestamp"`
+	UID     string               `json:"uuid"`
+	Modules []module             `json:"modules"`
+}
+
+type module struct {
+	Port    int     `json:"port"`
+	Voltage float64 `json:"volt"`
+	Ampere  float64 `json:"ampere"`
+}
+
+func handleReq(c echo.Context) error {
+	var i []input
+	err := c.Bind(&i)
+	if err != nil {
+		return c.JSON(400, err)
+	}
+
+	sets := data.Sets{}
+	for _, v := range i {
+		mID := data.GetMeterID(data.SourceEnvitron, v.UID)
+		key := data.Key{Meter: mID, Time: time.Time(v.Time)}
+		if _, ok := sets[key]; !ok {
+			sets[key] = data.Set{}
+		}
+
+		for _, m := range v.Modules {
+			if m.Port == 4 {
+				continue
+			}
+			p := strconv.Itoa(m.Port)
+
+			sets[key][`UGem`+p] = m.Voltage
+			sets[key][`IGem`+p] = m.Ampere
+		}
+	}
+
+	data.InsertSets(sets)
+
+	return c.JSONBlob(200, []byte(`{"success": true}`))
+}