feat(font): display font families

resolves #4168

src/font/cli.go

@@ -29,7 +29,7 @@ type loadMsg []*Asset
 
 type zipMsg []byte
 
-type successMsg int
+type successMsg []string
 
 type errMsg error
 
@@ -69,12 +69,13 @@ const (
 )
 
 type main struct {
-	spinner spinner.Model
-	list    *list.Model
-	system  bool
-	font    string
-	state   state
-	err     error
+	spinner  spinner.Model
+	list     *list.Model
+	system   bool
+	font     string
+	state    state
+	err      error
+	families []string
 }
 
 func (m *main) buildFontList(nerdFonts []*Asset) {
@@ -124,12 +125,12 @@ func installLocalFontZIP(zipFile string, user bool) {
 }
 
 func installFontZIP(zipFile []byte, user bool) {
-	err := InstallZIP(zipFile, user)
+	families, err := InstallZIP(zipFile, user)
 	if err != nil {
 		program.Send(errMsg(err))
 		return
 	}
-	program.Send(successMsg(0))
+	program.Send(successMsg(families))
 }
 
 func (m *main) Init() tea.Cmd {
@@ -216,6 +217,7 @@ func (m *main) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 
 	case successMsg:
 		m.state = done
+		m.families = msg
 		return m, tea.Quit
 
 	case errMsg:
@@ -251,7 +253,13 @@ func (m *main) View() string {
 	case quit:
 		return textStyle.Render("No need to install a new font? That's cool.")
 	case done:
-		return textStyle.Render(fmt.Sprintf("Successfully installed %s 🚀", m.font))
+		var builder strings.Builder
+		builder.WriteString(fmt.Sprintf("Successfully installed %s 🚀\n\n", m.font))
+		builder.WriteString("The following font families are now available for configuration:\n")
+		for _, family := range m.families {
+			builder.WriteString(fmt.Sprintf("  • %s\n", family))
+		}
+		return textStyle.Render(builder.String())
 	}
 	return ""
 }

src/font/install.go

@@ -10,12 +10,22 @@ import (
 	"strings"
 )
 
-func InstallZIP(data []byte, user bool) error {
+func contains[S ~[]E, E comparable](s S, e E) bool {
+	for _, a := range s {
+		if a == e {
+			return true
+		}
+	}
+	return false
+}
+
+func InstallZIP(data []byte, user bool) ([]string, error) {
+	var families []string
 	bytesReader := bytes.NewReader(data)
 
 	zipReader, err := zip.NewReader(bytesReader, int64(bytesReader.Len()))
 	if err != nil {
-		return err
+		return families, err
 	}
 
 	fonts := make(map[string]*Font)
@@ -23,13 +33,13 @@ func InstallZIP(data []byte, user bool) error {
 	for _, zf := range zipReader.File {
 		rc, err := zf.Open()
 		if err != nil {
-			return err
+			return families, err
 		}
 		defer rc.Close()
 
 		data, err := io.ReadAll(rc)
 		if err != nil {
-			return err
+			return families, err
 		}
 
 		fontData, err := newFont(zf.Name, data)
@@ -51,9 +61,13 @@ func InstallZIP(data []byte, user bool) error {
 
 	for _, font := range fonts {
 		if err = install(font, user); err != nil {
-			return err
+			return families, err
+		}
+
+		if !contains(families, font.Family) {
+			families = append(families, font.Family)
 		}
 	}
 
-	return nil
+	return families, nil
 }