#===============================================================================
# Copyright (C) 2010 Diego Duclos
#
# This file is part of pyfa.
#
# pyfa is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# pyfa is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with pyfa.  If not, see <http://www.gnu.org/licenses/>.
#===============================================================================

import wx

import service
import gui.globalEvents as GE
import gui.marketBrowser as mb
import gui.display as d
from gui.builtinViewColumns.state import State
from gui.contextMenu import ContextMenu

class DroneViewDrop(wx.PyDropTarget):
        def __init__(self, dropFn):
            wx.PyDropTarget.__init__(self)
            self.dropFn = dropFn
            # this is really transferring an EvE itemID
            self.dropData = wx.PyTextDataObject()
            self.SetDataObject(self.dropData)

        def OnData(self, x, y, t):
            if self.GetData():
                self.dropFn(x, y, int(self.dropData.GetText()))
            return t

class DroneView(d.Display):
    DEFAULT_COLS = ["State",
                    "Base Icon",
                    "Base Name",
                    "prop:droneDps,droneBandwidth",
                    "Max Range",
                    "Tracking",
                    "attr:maxVelocity",]

    def __init__(self, parent):
        d.Display.__init__(self, parent, style=wx.LC_SINGLE_SEL | wx.BORDER_NONE)
        self.mainFrame.Bind(GE.FIT_CHANGED, self.fitChanged)
        self.mainFrame.Bind(mb.ITEM_SELECTED, self.addItem)
        self.Bind(wx.EVT_LEFT_DCLICK, self.removeItem)
        self.Bind(wx.EVT_LEFT_DOWN, self.click)
        if "__WXGTK__" in  wx.PlatformInfo:
            self.Bind(wx.EVT_RIGHT_UP, self.scheduleMenu)
        else:
            self.Bind(wx.EVT_RIGHT_DOWN, self.scheduleMenu)


        self.Bind(wx.EVT_LIST_BEGIN_DRAG, self.startDrag)
        self.SetDropTarget(DroneViewDrop(self.mergeDrones))

    def startDrag(self, event):
        row = event.GetIndex()
        if row != -1:
            data = wx.PyTextDataObject()
            data.SetText(str(self.GetItemData(row)))

            dropSource = wx.DropSource(self)
            dropSource.SetData(data)
            res = dropSource.DoDragDrop()

    def mergeDrones(self, x, y, itemID):
        srcRow = self.FindItemData(-1,itemID)
        dstRow, _ = self.HitTest((x, y))
        if srcRow != -1 and dstRow != -1:
            self._merge(srcRow, dstRow)

    def _merge(self, src, dst):
        sFit = service.Fit.getInstance()
        fitID = self.mainFrame.getActiveFit()
        if sFit.mergeDrones(fitID, self.drones[src], self.drones[dst]):
            wx.PostEvent(self.mainFrame, GE.FitChanged(fitID=fitID))

    DRONE_ORDER = ('Light Scout Drones', 'Medium Scout Drones',
                   'Heavy Attack Drones', 'Sentry Drones', 'Fighters',
                   'Fighter Bombers', 'Combat Utility Drones',
                   'Electronic Warfare Drones', 'Logistic Drones', 'Mining Drones')
    def droneKey(self, drone):
        item = drone.item
        if item.marketGroup is None:
            item = item.metaGroup.parent

        return (self.DRONE_ORDER.index(item.marketGroup.name),
                drone.item.name)

    def fitChanged(self, event):
        cFit = service.Fit.getInstance()
        fit = cFit.getFit(event.fitID)

        self.original = fit.drones if fit is not None else None
        self.drones = stuff = fit.drones[:] if fit is not None else None
        if stuff is not None:
            stuff.sort(key=self.droneKey)

        self.update(stuff)
        event.Skip()


    def addItem(self, event):
        cFit = service.Fit.getInstance()
        fitID = self.mainFrame.getActiveFit()
        trigger = cFit.addDrone(fitID, event.itemID)
        if trigger:
            wx.PostEvent(self.mainFrame, GE.FitChanged(fitID=fitID))
            self.mainFrame.additionsPane.select("Drones")

        event.Skip()

    def removeItem(self, event):
        row, _ = self.HitTest(event.Position)
        if row != -1:
            col = self.getColumn(event.Position)
            if col != self.getColIndex(State):
                fitID = self.mainFrame.getActiveFit()
                cFit = service.Fit.getInstance()
                drone = self.drones[self.GetItemData(row)]
                cFit.removeDrone(fitID, self.original.index(drone))
                wx.PostEvent(self.mainFrame, GE.FitChanged(fitID=fitID))

    def click(self, event):
        event.Skip()
        row, _ = self.HitTest(event.Position)
        if row != -1:
            col = self.getColumn(event.Position)
            if col == self.getColIndex(State):
                fitID = self.mainFrame.getActiveFit()
                cFit = service.Fit.getInstance()
                drone = self.drones[row]
                cFit.toggleDrone(fitID, self.original.index(drone))
                wx.PostEvent(self.mainFrame, GE.FitChanged(fitID=fitID))

    def scheduleMenu(self, event):
        event.Skip()
        if self.getColumn(event.Position) != self.getColIndex(State):
            wx.CallAfter(self.spawnMenu)

    def spawnMenu(self):
        sel = self.GetFirstSelected()
        if sel != -1:
            cFit = service.Fit.getInstance()
            fit = cFit.getFit(self.mainFrame.getActiveFit())

            menu = ContextMenu.getMenu((self.drones[sel],), "drone")
            self.PopupMenu(menu)