Reference · Updated Mar 27, 2026

Workflow — Complete Queue Journey (Walk-Up)

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Workflow — Complete Queue Journey (Walk-Up)

Trigger: Visitor navigates to /queue/join

Step-by-Step

Step	System Action	Ticket Status
Visitor selects service and submits	`IssueTicket` action creates Ticket	`waiting`
—	`TicketIssued` event broadcast to display	—
—	`SendTicketNotification` job dispatched (type=issued)	—
Counter calls next	`CallNextTicket` action	`calling`
—	`TicketCalled` event broadcast (TTS triggered on display)	—
—	`SendTicketNotification` job dispatched (type=called)	—
Visitor arrives at counter	`StartServing` action	`serving`
Staff completes service	`CompleteTicket` action	`completed`
—	`TicketCompleted` event broadcast	—
—	`SendTicketNotification` job dispatched (type=completed, includes feedback URL)	—

State Transition Diagram

waiting → calling → serving → completed
                            ↘ transferred (creates new TicketStage in target office)
         ↓ (no-show)
       missed
         ↓ (recalled within 15 min)
       recalled → calling → ...
         ↓ (expired after 15 min)
       expired

Priority Ordering

When CallNextTicket selects the next ticket, it uses: ORDER BY priority_score DESC, issued_at ASC

Priority Type	Score
Normal	0
Scholarship	5
PWD / Senior / Pregnant	10
VIP	15

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