#!bin/python

from __future__ import division, nested_scopes
from optparse import OptionParser
import Tkinter as tk
import louie as dispatcher
from twisted.internet import reactor, tksupport, task

import run_local
from light9.dmxchanedit import Levelbox
from light9 import dmxclient, Patch, Submaster, showconfig, prof
from light9.uihelpers import toplevelat
from light9.rdfdb.syncedgraph import SyncedGraph

class Subcomposer(tk.Frame):
    def __init__(self, master, graph):
        tk.Frame.__init__(self, master, bg='black')
        self.graph = graph

        self.levelbox = Levelbox(self, graph)
        self.levelbox.pack(side='top')

        self.savebox = EntryCommand(self, cmd=self.savenewsub)
        self.savebox.pack(side='top')

        self.loadbox = EntryCommand(self, verb="Load", cmd=self.loadsub)
        self.loadbox.pack(side='top')

        def alltozero():
            for lev in self.levelbox.levels:
                lev.setlevel(0)

        tk.Button(self, text="all to zero", command=alltozero).pack(side='top')

        dispatcher.connect(self.sendupdate, "levelchanged")

    def fill_both_boxes(self, subname):
        for box in [self.savebox, self.loadbox]:
            box.set(subname)

    def save_levels(self, *args):
        levelfile = file("subcomposer.savedlevels","w")
        levelfile.write(" ".join(map(str, self.levels)))

    def load_levels(self):
        try:
            levelfile = file("subcomposer.savedlevels","r")
            levels = map(float, levelfile.read().split())
            self.set_levels(levels)
        except IOError:
            pass

    def savenewsub(self, subname):
        leveldict={}
        for i,lev in zip(range(len(self.levels)),self.levels):
            if lev!=0:
                leveldict[Patch.get_channel_name(i+1)]=lev

        s=Submaster.Submaster(subname,leveldict=leveldict)
        s.save()

    def loadsub(self, subname):
        """puts a sub into the levels, replacing old level values"""
        s=Submaster.Submasters(showconfig.getGraph()).get_sub_by_name(subname)
        self.set_levels(s.get_dmx_list())
        dispatcher.send("levelchanged")

    def toDmxLevels(self):
        # the dmx levels we edit and output, range is 0..1 (dmx chan 1 is
        # the 0 element)
        out = {}
        for lev in self.levelbox.levels:
            out[lev.channelnum] = lev.currentlevel
        if not out:
            return []
        
        return [out.get(i, 0) for i in range(max(out.keys()) + 1)]
     
    def sendupdate(self):
        dmxclient.outputlevels(self.toDmxLevels(), twisted=True)


class EntryCommand(tk.Frame):
    def __init__(self, master, verb="Save", cmd=None):
        tk.Frame.__init__(self, master, bd=2, relief='raised')
        tk.Label(self, text="Sub name:").pack(side='left')
        self.cmd = cmd
        self.entry = tk.Entry(self)
        self.entry.pack(side='left', expand=True, fill='x')
        
        self.entry.bind("<Return>", self.action)
        tk.Button(self, text=verb, command=self.action).pack(side='left')

    def action(self, *args):
        subname = self.entry.get()
        self.cmd(subname)
        print "sub", self.cmd, subname

    def set(self, text):
        self.entry.delete(0, 'end')
        self.entry.insert(0, text)


#############################

if __name__ == "__main__":
    parser = OptionParser(usage="%prog [subname]")
    parser.add_option('--no-geometry', action='store_true',
                      help="don't save/restore window geometry")
    opts, args = parser.parse_args()

    root=tk.Tk()
    root.config(bg='black')
    root.tk_setPalette("#004633")
    if not opts.no_geometry:
        toplevelat("subcomposer", root)

    graph = SyncedGraph("subcomposer")

    sc = Subcomposer(root, graph)
    sc.pack()

    tk.Label(root,text="Bindings: B1 adjust level; B2 set full; B3 instant bump",
             font="Helvetica -12 italic",anchor='w').pack(side='top',fill='x')

    if len(args) == 1:
        root.config(bg='green') # trying to make these look distinctive
        sc.loadsub(args[0])
        sc.fill_both_boxes(args[0])

    task.LoopingCall(sc.sendupdate).start(1)

    tksupport.install(root,ms=10)
    prof.run(reactor.run, profile=False)