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utils.go
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/
utils.go
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package vkapi
import (
"encoding/json"
"fmt"
"net/url"
"os"
"strconv"
"strings"
)
type ResolveScreenName struct {
Type string `json:"type"`
ObjectID int `json:"object_id"`
}
func (client *VKClient) ResolveScreenName(name string) (ResolveScreenName, error) {
var res ResolveScreenName
params := url.Values{}
params.Set("screen_name", name)
resp, err := client.MakeRequest("utils.resolveScreenName", params)
if err == nil {
json.Unmarshal(resp.Response, &res)
}
if res.ObjectID == 0 || res.Type == "" {
err = fmt.Errorf("%s not found", name)
}
return res, err
}
func ArrayToStr(a []int) string {
s := []string{}
for _, num := range a {
s = append(s, strconv.Itoa(num))
}
return strings.Join(s, ",")
}
func GetFilesSizeMB(files []string) (int, error) {
var size int64
for _, f := range files {
file, err := os.Open(f)
if err != nil {
return 0, err
}
fi, err := file.Stat()
if err != nil {
return 0, err
}
size += fi.Size()
file.Close()
}
return int(size / 1048576), nil
}