from sequenceplot import SequenceObject, Placeholder, SequenceDiagram
# declare objects
x = Placeholder()
t = Placeholder()
c = Placeholder()
a1 = Placeholder()
a2 = Placeholder()
diagram = SequenceDiagram([x, t, c, a1, a2])
diagram.setParam('boxWidth', 1.0)
diagram.setParam('diagramWidth', 14)
x.createInstance(t, "a:Transaction", sync=False)
t.active()
t.createInstance(c, "a:TransCoord", sync=False)
t.inactive()
c.active()
c.createInstance(a1, "a1:TransCheck", sync=False)
a1.active()
c.createInstance(a2, "a2:TransCheck", sync=False)
a2.active()
a1.message(c, "ok")
c.callMethod(c, "all done?")
c.inactive()
a1.delete()
diagram = SequenceDiagram([s, w, c, r])
diagram.setParam('objectSpacing', 0.5)
diagram.step()
w.active()
diagram.async()
s.message(w, 'liftReceiver')
diagram.sync()
w.message(s, 'setDialTone()')
diagram.async()
s.message(w, '*dialDigit(d)')
w.lconstraint('{dialing.executionTime < 30s}')
w.callMethod(w, 'routeCalls(s,n)')
w.createInstance(c, 'c:Convers')
c.active()
c.pushMethod(r, 'ring()')
diagram.async()
r.message(c, 'liftReceiver')
diagram.sync()
c.message(w, 'connect(r,s)')
w.message(s, 'connect(r)')
w.message(r, '')
w.lconstraint('connect(s)')
diagram.step()
# Render the diagram into an SVG file named "authentication.svg".
diagram.svg('lifelineConstraints')
