lookup for created at

go.mod

@@ -9,6 +9,7 @@ require (
 )
 
 require (
+	github.com/barasher/go-exiftool v1.7.0 // indirect
 	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect

go.sum

@@ -1,3 +1,5 @@
+github.com/barasher/go-exiftool v1.7.0 h1:EOGb5D6TpWXmqsnEjJ0ai6+tIW2gZFwIoS9O/33Nixs=
+github.com/barasher/go-exiftool v1.7.0/go.mod h1:F9s/a3uHSM8YniVfwF+sbQUtP8Gmh9nyzigNF+8vsWo=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=

internal/piwigo/exif.go

@@ -0,0 +1,46 @@
+package piwigo
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/barasher/go-exiftool"
+)
+
+type ExifResult struct {
+	CreatedAt *TimeResult
+}
+
+func Exif(filename string) (*ExifResult, error) {
+	et, err := exiftool.NewExiftool()
+	if err != nil {
+		return nil, err
+	}
+	defer et.Close()
+
+	resp := &ExifResult{}
+	fileInfos := et.ExtractMetadata(filename)
+	for _, fileInfo := range fileInfos {
+		if fileInfo.Err != nil {
+			fmt.Printf("Error concerning %v: %v\n", fileInfo.File, fileInfo.Err)
+			continue
+		}
+
+		for k, v := range fileInfo.Fields {
+			switch k {
+			case "CreateDate", "CreationDate":
+				switch v := v.(type) {
+				case string:
+					t, err := time.Parse("2006:01:02 15:04:05-07:00", v)
+					if err == nil {
+						if resp.CreatedAt == nil || time.Time(*resp.CreatedAt).After(t) {
+							r := TimeResult(t)
+							resp.CreatedAt = &r
+						}
+					}
+				}
+			}
+		}
+	}
+	return resp, nil
+}

internal/piwigo/files.go

@@ -36,8 +36,8 @@ func (p *Piwigo) UploadChunks(filename string, nbJobs int) (*FileUploadResult, e
 	if p.FileExists(md5) {
 		return nil, errors.New("file already exists")
 	}
-	st, _ := os.Stat(filename)
 
+	st, _ := os.Stat(filename)
 	wg := &sync.WaitGroup{}
 	chunks, err := Base64Chunker(filename)
 	errout := make(chan error)
@@ -67,12 +67,16 @@ func (p *Piwigo) UploadChunks(filename string, nbJobs int) (*FileUploadResult, e
 		return nil, errors.New(errstring)
 	}
 
+	exif, _ := Exif(filename)
 	var resp *FileUploadResult
-	err = p.Post("pwg.images.add", &url.Values{
+	data := &url.Values{}
-		"original_sum":      []string{md5},
+	data.Set("original_sum", md5)
-		"original_filename": []string{filename},
+	data.Set("original_filename", filename)
-		"check_uniqueness":  []string{"true"},
+	data.Set("check_uniqueness", "true")
-	}, &resp)
+	if exif != nil && exif.CreatedAt != nil {
+		data.Set("date_creation", exif.CreatedAt.String())
+	}
+	err = p.Post("pwg.images.add", data, &resp)
 	if err != nil {
 		return nil, err
 	}

internal/piwigo/time.go

@@ -36,7 +36,7 @@ func (c TimeResult) String() string {
 	if t.IsZero() {
 		return ""
 	} else {
-		return t.Format(time.RFC3339)
+		return t.Format("2006-01-02 15:04:05")
 	}
 }