Revert "Simplify image compression"

This reverts commit 0f2ac430ce.

go.mod

@@ -3,6 +3,7 @@ module git.jlel.se/jlelse/hugo-micropub
 go 1.14
 
 require (
+	codeberg.org/jlelse/tinify v0.0.0-20200123222407-7fc9c21822b0
 	github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be // indirect
 	github.com/gliderlabs/ssh v0.3.0 // indirect
 	github.com/go-git/go-git/v5 v5.1.0

go.sum

@@ -1,3 +1,5 @@
+codeberg.org/jlelse/tinify v0.0.0-20200123222407-7fc9c21822b0 h1:pJX79kTd01NtxEnzhfd4OU2SY9fquKVoO47DUeNKe+8=
+codeberg.org/jlelse/tinify v0.0.0-20200123222407-7fc9c21822b0/go.mod h1:X6cM4Sn0aL/4VQ/ku11yxmiV0WIk5XAaYEPHQLQjFFM=
 github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7 h1:uSoVVbwJiQipAclBbw+8quDsfcvFjOpI5iCf4p/cqCs=
 github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=

imagecompression.go

@@ -1,15 +1,13 @@
 package main
 
 import (
-	"bytes"
-	"encoding/json"
 	"errors"
-	"io"
 	"io/ioutil"
-	"net/http"
 	"os"
 	"sort"
 	"strings"
+
+	tfgo "codeberg.org/jlelse/tinify"
 )
 
 type ImageCompression interface {
@@ -34,27 +32,32 @@ func (t *Tinify) Compress(url string) (location string, err error) {
 		err = errors.New("file not supported")
 		return
 	}
-	// Shrink
-	shrinkedUrl, e := t.shrink(url)
+	tfgo.SetKey(t.key)
+	s, e := tfgo.FromUrl(url)
 	if e != nil {
 		err = errors.New("failed to compress file")
 		return
 	}
-	// Create temp file
+	e = s.Resize(&tfgo.ResizeOption{
+		Method: tfgo.ResizeMethodScale,
+		Width:  2000,
+	})
+	if e != nil {
+		err = errors.New("failed to resize file")
+		return
+	}
 	file, e := ioutil.TempFile("", "tiny-*."+fileExtension)
 	if e != nil {
 		err = errors.New("failed to create temporary file")
 		return
 	}
 	defer func() {
-		// Cleanup
 		_ = file.Close()
 		_ = os.Remove(file.Name())
 	}()
-	// Resize and download image
-	e = t.resize(shrinkedUrl, file)
+	e = s.ToFile(file.Name())
 	if e != nil {
-		err = errors.New("failed to resize file or save compressed file")
+		err = errors.New("failed to save compressed file")
 		return
 	}
 	hashFile, e := os.Open(file.Name())
@@ -70,71 +73,3 @@ func (t *Tinify) Compress(url string) (location string, err error) {
 	location, err = SelectedMediaStorage.Upload(fileName+"."+fileExtension, file)
 	return
 }
-
-func (t *Tinify) shrink(source string) (string, error) {
-	type Source struct {
-		Url string `json:"url"`
-	}
-	data := struct {
-		Source Source `json:"source"`
-	}{
-		Source: Source{
-			Url: source,
-		},
-	}
-	body := new(bytes.Buffer)
-	err := json.NewEncoder(body).Encode(data)
-	if err != nil {
-		return "", err
-	}
-	req, err := http.NewRequest("POST", "https://api.tinify.com/shrink", body)
-	if err != nil {
-		return "", err
-	}
-	req.SetBasicAuth("api", t.key)
-	req.Header.Set("Content-Type", "application/json")
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return "", err
-	}
-	if resp.StatusCode != 201 {
-		return "", errors.New("not 201 response code")
-	}
-	return resp.Header.Get("Location"), nil
-}
-
-func (t *Tinify) resize(output string, file *os.File) error {
-	type Resize struct {
-		Method string `json:"method"`
-		Width  int    `json:"width"`
-	}
-	data := struct {
-		Resize Resize `json:"resize"`
-	}{
-		Resize: Resize{
-			Method: "scale",
-			Width:  2000,
-		},
-	}
-	body := new(bytes.Buffer)
-	err := json.NewEncoder(body).Encode(data)
-	if err != nil {
-		return err
-	}
-	req, err := http.NewRequest("POST", output, body)
-	if err != nil {
-		return err
-	}
-	req.SetBasicAuth("api", t.key)
-	req.Header.Set("Content-Type", "application/json")
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return err
-	}
-	if resp.StatusCode != 200 {
-		return errors.New("not 201 response code")
-	}
-	defer resp.Body.Close()
-	_, err = io.Copy(file, resp.Body)
-	return err
-}