Basic impl added

internal/domain/notification.go

@@ -0,0 +1,115 @@
+package domain
+
+import (
+	"time"
+)
+
+// Priority defines the urgency level of a notification
+type Priority int
+
+const (
+	PriorityLow Priority = iota
+	PriorityNormal
+	PriorityHigh
+	PriorityCritical
+)
+
+// NotificationType defines the channel through which to send the notification
+type NotificationType string
+
+const (
+	TypeEmail  NotificationType = "email"
+	TypeSlack  NotificationType = "slack"
+	TypeNtfy   NotificationType = "ntfy"
+	TypeStdout NotificationType = "stdout"
+)
+
+// NotificationStatus represents the current state of a notification
+type NotificationStatus string
+
+const (
+	StatusPending    NotificationStatus = "pending"
+	StatusQueued     NotificationStatus = "queued"
+	StatusProcessing NotificationStatus = "processing"
+	StatusSent       NotificationStatus = "sent"
+	StatusFailed     NotificationStatus = "failed"
+	StatusRetrying   NotificationStatus = "retrying"
+)
+
+// Notification represents a notification message with metadata
+type Notification struct {
+	// ID is a unique identifier for the notification
+	ID string `json:"id"`
+
+	// Type specifies which notifier should handle this notification
+	Type NotificationType `json:"type"`
+
+	// Priority determines urgency and retry behavior
+	Priority Priority `json:"priority"`
+
+	// Status tracks the current state of the notification
+	Status NotificationStatus `json:"status"`
+
+	// Subject is the notification subject/title (used for email, slack, ntfy)
+	Subject string `json:"subject"`
+
+	// Body is the main content of the notification
+	Body string `json:"body"`
+
+	// Recipients contains the target addresses (email, slack channel, ntfy topic, etc.)
+	Recipients []string `json:"recipients"`
+
+	// Metadata contains additional provider-specific data
+	Metadata map[string]interface{} `json:"metadata,omitempty"`
+
+	// CreatedAt is when the notification was created
+	CreatedAt time.Time `json:"created_at"`
+
+	// ScheduledFor allows delayed sending (optional)
+	ScheduledFor *time.Time `json:"scheduled_for,omitempty"`
+
+	// SentAt is when the notification was successfully sent
+	SentAt *time.Time `json:"sent_at,omitempty"`
+
+	// RetryCount tracks how many times sending has been attempted
+	RetryCount int `json:"retry_count"`
+
+	// MaxRetries defines the maximum retry attempts
+	MaxRetries int `json:"max_retries"`
+
+	// LastError stores the most recent error message if failed
+	LastError string `json:"last_error,omitempty"`
+}
+
+// NotificationResult represents the outcome of sending a notification
+type NotificationResult struct {
+	// NotificationID references the original notification
+	NotificationID string `json:"notification_id"`
+
+	// Success indicates if the notification was sent successfully
+	Success bool `json:"success"`
+
+	// Message provides additional context about the result
+	Message string `json:"message,omitempty"`
+
+	// Error contains error details if the notification failed
+	Error string `json:"error,omitempty"`
+
+	// SentAt is when the notification was sent
+	SentAt time.Time `json:"sent_at"`
+
+	// ProviderResponse contains raw response data from the notification provider
+	ProviderResponse map[string]interface{} `json:"provider_response,omitempty"`
+}
+
+// NotificationFilter is used for querying notifications
+type NotificationFilter struct {
+	IDs        []string             `json:"ids,omitempty"`
+	Types      []NotificationType   `json:"types,omitempty"`
+	Statuses   []NotificationStatus `json:"statuses,omitempty"`
+	Recipients []string             `json:"recipients,omitempty"`
+	CreatedAfter  *time.Time        `json:"created_after,omitempty"`
+	CreatedBefore *time.Time        `json:"created_before,omitempty"`
+	Limit      int                  `json:"limit,omitempty"`
+	Offset     int                  `json:"offset,omitempty"`
+}