chore: move the go code into a subfolder

apps/api/internal/notification/templates/template.go

@@ -0,0 +1,80 @@
+package templates
+
+import (
+	"bytes"
+	"html/template"
+	"io"
+	"net/http"
+)
+
+const (
+	templatesPath    = "/templates"
+	templateFileName = "template.html"
+)
+
+func GetParsedTemplate(mailhtml string, contentData interface{}) (string, error) {
+	template, err := ParseTemplateFile(mailhtml, contentData)
+	if err != nil {
+		return "", err
+	}
+	return ParseTemplateText(template, contentData)
+}
+
+func ParseTemplateFile(mailhtml string, data interface{}) (string, error) {
+	tmpl, err := template.New("tmpl").Parse(mailhtml)
+	if err != nil {
+		return "", err
+	}
+
+	return parseTemplate(tmpl, data)
+}
+
+func ParseTemplateText(text string, data interface{}) (string, error) {
+	template, err := template.New("template").Parse(text)
+	if err != nil {
+		return "", err
+	}
+	return parseTemplate(template, data)
+}
+
+func parseTemplate(template *template.Template, data interface{}) (string, error) {
+	buf := new(bytes.Buffer)
+	if err := template.Execute(buf, data); err != nil {
+		return "", err
+	}
+	return buf.String(), nil
+}
+
+func readFile(dir http.FileSystem, fileName string) (*template.Template, error) {
+	f, err := dir.Open(templatesPath + "/" + fileName)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	content, err := io.ReadAll(f)
+	if err != nil {
+		return nil, err
+	}
+	tmpl, err := template.New(fileName).Parse(string(content))
+	if err != nil {
+		return nil, err
+	}
+	return tmpl, nil
+}
+
+func readFileFromDatabase(dir http.FileSystem, fileName string) (*template.Template, error) {
+	f, err := dir.Open(templatesPath + "/" + fileName)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	content, err := io.ReadAll(f)
+	if err != nil {
+		return nil, err
+	}
+	tmpl, err := template.New(fileName).Parse(string(content))
+	if err != nil {
+		return nil, err
+	}
+	return tmpl, nil
+}