[add] better error handling, [add] font selector, [add] tailwind generation

metadata/epub.go

@@ -8,6 +8,20 @@ import (
 	"golang.org/x/net/html"
 )
 
+func getEPUBMetadata(filepath string) (*MetadataInfo, error) {
+	rc, err := epub.OpenReader(filepath)
+	if err != nil {
+		return nil, err
+	}
+	rf := rc.Rootfiles[0]
+
+	return &MetadataInfo{
+		Title:       &rf.Title,
+		Author:      &rf.Creator,
+		Description: &rf.Description,
+	}, nil
+}
+
 func countEPUBWords(filepath string) (int64, error) {
 	rc, err := epub.OpenReader(filepath)
 	if err != nil {

metadata/integrations_test.go

@@ -35,7 +35,7 @@ func TestGBooksISBNQuery(t *testing.T) {
 }
 
 func TestGBooksTitleQuery(t *testing.T) {
-	title := "Alice in Wonderland"
+	title := "Alice in Wonderland 1877527815"
 	metadataResp, err := getGBooksMetadata(MetadataInfo{
 		Title: &title,
 	})

metadata/metadata.go

@@ -67,3 +67,16 @@ func GetWordCount(filepath string) (int64, error) {
 		return 0, errors.New("Invalid Extension")
 	}
 }
+
+func GetMetadata(filepath string) (*MetadataInfo, error) {
+	fileMime, err := mimetype.DetectFile(filepath)
+	if err != nil {
+		return nil, err
+	}
+
+	if fileExtension := fileMime.Extension(); fileExtension == ".epub" {
+		return getEPUBMetadata(filepath)
+	} else {
+		return nil, errors.New("Invalid Extension")
+	}
+}

metadata/metadata_test.go

@@ -6,9 +6,31 @@ import (
 
 func TestGetWordCount(t *testing.T) {
 	var want int64 = 30477
-	wordCount, err := countEPUBWords("./_test_files/alice.epub")
+	wordCount, err := countEPUBWords("../_test_files/alice.epub")
 
 	if wordCount != want {
 		t.Fatalf(`Expected: %v, Got: %v, Error: %v`, want, wordCount, err)
 	}
 }
+
+func TestGetMetadata(t *testing.T) {
+	metadataInfo, err := getEPUBMetadata("../_test_files/alice.epub")
+	if err != nil {
+		t.Fatalf(`Expected: *MetadataInfo, Got: nil, Error: %v`, err)
+	}
+
+	want := "Alice's Adventures in Wonderland / Illustrated by Arthur Rackham. With a Proem by Austin Dobson"
+	if *metadataInfo.Title != want {
+		t.Fatalf(`Expected: %v, Got: %v, Error: %v`, want, *metadataInfo.Title, err)
+	}
+
+	want = "Lewis Carroll"
+	if *metadataInfo.Author != want {
+		t.Fatalf(`Expected: %v, Got: %v, Error: %v`, want, *metadataInfo.Author, err)
+	}
+
+	want = ""
+	if *metadataInfo.Description != want {
+		t.Fatalf(`Expected: %v, Got: %v, Error: %v`, want, *metadataInfo.Description, err)
+	}
+}