huge refactoring

app/config/errors.go

@@ -0,0 +1,49 @@
+package config
+
+type fileConfigError struct{}
+
+func (e *fileConfigError) Error() string {
+	return "An error occured while trying to load the configuration file"
+}
+
+type wrongLoggingLevelError struct{}
+
+func (e *wrongLoggingLevelError) Error() string {
+	return "Accepted values for logging level: DEBUG, INFO, WARN, ERROR, FATAL, PANIC"
+}
+
+type wrongLoggingFormatError struct{}
+
+func (e *wrongLoggingFormatError) Error() string {
+	return "Accepted value for logging format: text, json"
+}
+
+type wrongHTMLCommandTemplate struct{}
+
+func (e *wrongHTMLCommandTemplate) Error() string {
+	return "An error occured while trying to parse the HTML command's template"
+}
+
+type wrongOfficeCommandTemplate struct{}
+
+func (e *wrongOfficeCommandTemplate) Error() string {
+	return "An error occured while trying to parse the Office command's template"
+}
+
+type wrongMergeCommandTemplate struct{}
+
+func (e *wrongMergeCommandTemplate) Error() string {
+	return "An error occured while trying to parse the merge command's template"
+}
+
+type readFileError struct{}
+
+func (e *readFileError) Error() string {
+	return "An error occured while trying to read the configuration file"
+}
+
+type unmarshalError struct{}
+
+func (e *unmarshalError) Error() string {
+	return "An error occured while trying to decode the configuration file as YAML"
+}