feat: notifications (#109)

* implement notification providers

* email provider

* notification handler

* notify users

* implement code sent on user eventstore

* send email implementation

* send init code

* handle codes

* fix project member handler

* add some logs for debug

* send emails

* text changes

* send sms

* notification process

* send password code

* format phone number

* test format phone

* remove fmts

* remove unused code

* rename files

* add mocks

* merge master

* Update internal/notification/providers/email/message.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update internal/notification/repository/eventsourcing/handler/notification.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update internal/notification/repository/eventsourcing/handler/notification.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update internal/notification/providers/email/provider.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* requested changes of mr

* move locker to eventstore pkg

* Update internal/notification/providers/chat/message.go

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

* move locker to eventstore pkg

* linebreak

* Update internal/notification/providers/email/provider.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update internal/notification/repository/eventsourcing/handler/notification.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

* Update internal/notification/repository/eventsourcing/handler/notification.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

Co-authored-by: Silvan <silvan.reusser@gmail.com>
Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/notification/templates/template.go

@@ -0,0 +1,45 @@
+package templates
+
+import (
+	"bytes"
+	"html/template"
+)
+
+const (
+	templateFileName = "template.html"
+)
+
+func GetParsedTemplate(contentData interface{}) (string, error) {
+	template, err := ParseTemplateFile("", contentData)
+	if err != nil {
+		return "", err
+	}
+	return ParseTemplateText(template, contentData)
+}
+
+func ParseTemplateFile(fileName string, data interface{}) (string, error) {
+	if fileName == "" {
+		fileName = templateFileName
+	}
+	template, err := template.ParseFiles(fileName)
+	if err != nil {
+		return "", err
+	}
+	return parseTemplate(template, 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
+}