from pyjamas.ui.VerticalPanel import VerticalPanel
from pyjamas.ui.HorizontalPanel import HorizontalPanel
from pyjamas.ui.CaptionPanel import CaptionPanel
from pyjamas.ui.ListBox import ListBox
from pyjamas.ui.TextBox import TextBox
from pyjamas.ui.Button import Button
from pyjamas.ui.HTML import HTML
from pyjamas.ui import HasAlignment

class AddPanel(CaptionPanel):
    def __init__(self, top):
        CaptionPanel.__init__(self, "Add virtual link")
        self.top = top

        hp = HorizontalPanel()
        self.end1 = ListBox()
        self.end1.addItem("Endpoint 1")
        for sliver in self.top.rspec.get_sliver_list():
            self.end1.addItem(sliver)

        self.end2 = ListBox()
        self.end2.addItem("Endpoint 2")
        for sliver in self.top.rspec.get_sliver_list():
            self.end2.addItem(sliver)

        self.bw = TextBox()
        self.bw.setText("1000")

        hp.add(self.end1)
        hp.add(self.end2)
        hp.add(self.bw)
        hp.add(Button("Add", self.go))

        self.add(hp)

    def go(self, sender):
        end1 = self.end1.getItemText(self.end1.getSelectedIndex())
        end2 = self.end2.getItemText(self.end2.getSelectedIndex())
        bw = self.bw.getText()

        self.top.refresh()
        

class VlinkPanel(HorizontalPanel):
    def __init__(self, top, description, bw):
        HorizontalPanel.__init__(self)
        self.description = description
        self.bw = bw
        self.top = top

        self.setSpacing(5)
        self.setVerticalAlignment(HasAlignment.ALIGN_MIDDLE)
        b = Button("X", self.delete)
        self.add(b)
        self.add(HTML("%s (%s kbps)" % (self.description, self.bw)))

    def delete(self, sender):
        self.top.refresh()


class LinkPanel(VerticalPanel):
    def __init__(self, sfadata, rspec):
        VerticalPanel.__init__(self)
        self.data = sfadata
        self.rspec = rspec

        self.refresh()

    def refresh(self):
        self.clear()
        self.add(AddPanel(self))

        cp = CaptionPanel("Virtual links")
        vp = VerticalPanel()
        vlinks = self.rspec.get_vlink_list()
        for (desc, bw) in vlinks:
            vp.add(VlinkPanel(self, desc, bw))
        cp.add(vp)
        self.add(cp)