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// Package tamtam implements TamTam Bot API
// Copyright (c) 2019 Alexander Kiryukhin <a.kiryukhin@mail.ru>
package tamtam
import (
"bytes"
"encoding/json"
"io"
"log"
"mime/multipart"
"net/http"
"net/url"
"os"
)
type uploads struct {
client *client
}
func newUploads(client *client) *uploads {
return &uploads{client: client}
}
func (a *uploads) GetUploadURL(uploadType UploadType) (*UploadEndpoint, error) {
result := new(UploadEndpoint)
values := url.Values{}
values.Set("type", string(uploadType))
body, err := a.client.request(http.MethodPost, "uploads", values, nil)
if err != nil {
return result, err
}
defer func() {
if err := body.Close(); err != nil {
log.Println(err)
}
}()
return result, json.NewDecoder(body).Decode(result)
}
func (a *uploads) UploadMedia(uploadType UploadType, filename string) (*UploadedInfo, error) {
bodyBuf := &bytes.Buffer{}
bodyWriter := multipart.NewWriter(bodyBuf)
fileWriter, err := bodyWriter.CreateFormFile("data", filename)
if err != nil {
return nil, err
}
fh, err := os.Open(filename)
if err != nil {
return nil, err
}
defer func() {
if err := fh.Close(); err != nil {
log.Println(err)
}
}()
_, err = io.Copy(fileWriter, fh)
if err != nil {
return nil, err
}
if err := bodyWriter.Close(); err != nil {
return nil, err
}
target, err := a.GetUploadURL(uploadType)
if err != nil {
return nil, err
}
contentType := bodyWriter.FormDataContentType()
resp, err := http.Post(target.Url, contentType, bodyBuf)
if err != nil {
return nil, err
}
defer func() {
if err := resp.Body.Close(); err != nil {
log.Println(err)
}
}()
result := new(UploadedInfo)
return result, json.NewDecoder(resp.Body).Decode(result)
}
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