Mar 04 2026: implemented SLA notifications

app/models/issue.py

@@ -58,6 +58,10 @@ class Issue(db.Model):
     result_notes  = db.Column(db.Text)
     result_photos = db.Column(db.JSON)   # list of relative paths e.g. ["uploads/issue_photos/abc.jpg"]
 
+    # Tracks which SLA alert level has already been notified so cron runs
+    # don't fire duplicate notifications. Values: None / 'at_risk' / 'breached'
+    sla_notified  = db.Column(db.String(10), nullable=True, default=None)
+
     # Relationships
     assigned_user = db.relationship('User', foreign_keys=[assigned_to], backref='assigned_issues')
     comments      = db.relationship('IssueComment', backref='issue', lazy='dynamic',

app/models/notification.py

@@ -11,6 +11,7 @@ EVENT_ISSUE_STATUS      = 'issue_status'
 EVENT_ISSUE_COMMENT     = 'issue_comment'
 EVENT_ISSUE_FOLLOW      = 'issue_follow_update'
 EVENT_INSPECTION_DONE   = 'inspection_completed'
+EVENT_SLA_ALERT         = 'sla_alert'
 
 ALL_EVENT_TYPES = {
     EVENT_ISSUE_ASSIGNED:  'Issue assigned to me',
@@ -18,6 +19,7 @@ ALL_EVENT_TYPES = {
     EVENT_ISSUE_COMMENT:   'New comment on issue',
     EVENT_ISSUE_FOLLOW:    'Updates on followed issues',
     EVENT_INSPECTION_DONE: 'Inspection completed',
+    EVENT_SLA_ALERT:       'SLA at-risk / breached alerts',
 }