88 lines
1.6 KiB
Go
88 lines
1.6 KiB
Go
package server
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"math"
|
|
"reflect"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/evcc-io/evcc/util"
|
|
)
|
|
|
|
func encode(v interface{}) (string, error) {
|
|
var s string
|
|
switch val := v.(type) {
|
|
case time.Time:
|
|
if val.IsZero() {
|
|
s = "null"
|
|
} else {
|
|
s = fmt.Sprintf(`"%s"`, val.Format(time.RFC3339))
|
|
}
|
|
case time.Duration:
|
|
// must be before stringer to convert to seconds instead of string
|
|
s = fmt.Sprintf("%d", int64(val.Seconds()))
|
|
case float64:
|
|
if math.IsNaN(val) {
|
|
s = "null"
|
|
} else {
|
|
s = fmt.Sprintf("%.5g", val)
|
|
}
|
|
default:
|
|
if b, err := json.Marshal(v); err == nil {
|
|
s = string(b)
|
|
} else {
|
|
return "", err
|
|
}
|
|
}
|
|
return s, nil
|
|
}
|
|
|
|
func encodeSlice(v interface{}) (string, error) {
|
|
rv := reflect.ValueOf(v)
|
|
res := make([]string, rv.Len())
|
|
|
|
for i := 0; i < rv.Len(); i++ {
|
|
var err error
|
|
if res[i], err = encode(rv.Index(i).Interface()); err != nil {
|
|
return "", err
|
|
}
|
|
}
|
|
|
|
return fmt.Sprintf("[%s]", strings.Join(res, ",")), nil
|
|
}
|
|
|
|
func kv(p util.Param) string {
|
|
var (
|
|
val string
|
|
err error
|
|
)
|
|
|
|
// unwrap slices
|
|
if p.Val != nil && reflect.TypeOf(p.Val).Kind() == reflect.Slice {
|
|
val, err = encodeSlice(p.Val)
|
|
} else {
|
|
val, err = encode(p.Val)
|
|
}
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
if p.Key == "" && val == "" {
|
|
log.ERROR.Printf("invalid key/val for %+v, please report to https://github.com/evcc-io/evcc/issues/6439", p)
|
|
return "\"foo\":\"bar\""
|
|
}
|
|
|
|
var msg strings.Builder
|
|
msg.WriteString("\"")
|
|
if p.Loadpoint != nil {
|
|
msg.WriteString(fmt.Sprintf("loadpoints.%d.", *p.Loadpoint))
|
|
}
|
|
msg.WriteString(p.Key)
|
|
msg.WriteString("\":")
|
|
msg.WriteString(val)
|
|
|
|
return msg.String()
|
|
}
|