Merge pull request #11 from reu98/feat/add-generate-with-text

feat: add option generate with text

captcha.go

@@ -17,7 +17,10 @@ type Result struct {
 // CreateByText: generate a new captcha
 func CreateByText(option OptionText) (*Result, error) {
 	opt := getOptionByText(option)
-	text := opt.randomText()
+	text := opt.text
+	if text == "" {
+		text = opt.randomText()
+	}
 
 	data, err := opt.createCaptcha(text)
 	if err != nil {

captcha_test.go

@@ -72,3 +72,13 @@ func TestCreateCaptcha(t *testing.T) {
 	require.NotEmpty(t, capt)
 	require.NoError(t, err)
 }
+
+func TestCreateCaptchaWithText(t *testing.T) {
+	opt := getOptionByText(OptionText{
+		Text: "abcd",
+	})
+	capt, err := opt.createCaptcha(opt.text)
+
+	require.NotEmpty(t, capt)
+	require.NoError(t, err)
+}

option.go

@@ -48,6 +48,10 @@ type OptionText struct {
 	// The characters that can be displayed in the captcha.
 	// Default: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789
 	CharactersPreset string
+
+	// Generate With Text
+	// Note: Text is optional. If not provided, it will be generated randomly
+	Text string
 }
 
 type OptionMath struct {
@@ -100,6 +104,7 @@ type OptionMath struct {
 
 type option struct {
 	size             uint8
+	text             string
 	width            uint16
 	height           uint16
 	isColor          bool
@@ -165,6 +170,7 @@ func getOptionByText(opt OptionText) *option {
 		ignoreCharacters: opt.IgnoreCharacters,
 		charactersPreset: charPreset,
 		fontPath:         opt.FontPath,
+		text:             opt.Text,
 	}
 }