import os, sys, time

from IPython.display import display, Javascript, HTML

import phm
p = phm.phm()

import pandas
notes_csv = pandas.read_csv('notes.csv', sep='\t')
notes = {}
for note, freq in zip(notes_csv.name, notes_csv.frequency):
    notes[note] = freq

notes_csv[:4]

tempo = 160

shutup = lambda : p.set_frequency(0)

def play_note(name, beats=1):
    display(Javascript("$('div#%s').addClass('playing');" % name))
    play_frequency(notes[name], beats)
    display(Javascript("$('div#%s').removeClass('playing');" % name))

def play_frequency(freq, beats=1):
    mask = int(freq) % 15
    p.write_outputs(mask)
    p.set_frequency(freq)
    time.sleep(beats * 60./tempo)
    p.set_frequency(0)
    p.write_outputs(0b0000)

def rest(beats=1):
    time.sleep(beats * 60. / tempo)

def shutup_handler(self, etype, value, tb, tb_offset=None):
    shutup()
    print 'KeyboardInterrupt'

get_ipython().set_custom_exc((KeyboardInterrupt,), shutup_handler)

play_note('C4')

play_frequency(400)

class Note(object):
    name = None
    frequency = 0
    def __init__(self, name, freq):
        self.name = name
        self.frequency = freq
    
    def __hash__(self):
        return self.freq
    
    def __call__(self, beats=1):
        play_frequency(self.frequency, beats)

g = globals()
for name, freq in notes.items():
    g[name] = Note(name, freq)


C4()
C4()
D4()
E4()
E4()

def play_tune(tune_s, octave=4):
    notelist = tune_s.split()
    for note in notelist:
        if ':' in note:
            note, beats = note.split(':')
            beats = float(beats)
        else:
            beats = 1
        if note == 'r':
            rest(beats)
            continue
        if note[-1] == '-':
            note = note[:-1] + str(octave-1)
        elif note[-1] == '+':
            note = note[:-1] + str(octave+1)
        elif not note[-1].isdigit():
            note = note + str(octave)
        play_note(note, beats)

tempo = 160
bar1 = 'E E F G G F E D C C D E E:1.5 D:.5 D:2'
bar2 = 'E E F G G F E D C C D E D:1.5 C:.5 C:2'
bar3 = 'D D E C D E:.5 F:.5 E C D E:.5 F:.5 E D C D G-:2'

play_tune(bar1)

play_tune(bar2)

play_tune(bar3)

key_t = "<div class='key' id={0}><span class='keyname'>{0}</span></div>"
black_key_t = "<div class='key sharp {1}' id={0}></div>"

names = []
for o in range(8):
    names.extend([ '%s%i' % (k,o) for k in 'CDEFGAB'])

keys = []
for name in names:
    keys.append(key_t.format(name))
    if name.startswith(tuple('ACDFG')):
        sharpname = name[0] + 's' + name[1:]
        keys.append(black_key_t.format(sharpname, sharpname[:2]))


print '\n'.join(keys[:10])

display(HTML("""<div class='keyboard-wrapper'>
<div class='keyboard'>
%s
</div>
</div>""" % '\n'.join(keys)))

%%javascript

var myState = {};
myState.mousedown = false;
$(document).on("mousedown", function () { myState.mousedown = true; }
).on("mouseup", function () { myState.mousedown = false; });


var mousedown = function(e) {
    $(this).addClass("playing");
    IPython.notebook.kernel.execute("p.set_frequency(notes['" + $(this)[0].id + "'])");
}
var mouseenter = function(e) {
    if ( !myState.mousedown ) return;
    $(this).addClass("playing");
    IPython.notebook.kernel.execute("p.set_frequency(notes['" + $(this)[0].id + "'])");
}
var shutup = function(e) {
    if ( ! $(this).hasClass("playing") ) return ;
        
    $(this).removeClass("playing");
    IPython.notebook.kernel.execute("p.set_frequency(0)");

}

$("div.key").on("mousedown", mousedown
).on("mouseenter", mouseenter
).on("selectstart", false
).on("mouseup", shutup
).on("mouseout", shutup);


import numpy as np



tempo = 680

play_tune('E E r E r C E r G r:4 G- r:4', octave=4)
for i in range(2):
    for i in range(2):
        play_tune('C r:2 G- r:2 E- r:3 A- r B- r As- A- r')
        play_tune('C E r G A r F G r E  r C D B- r:4')
    
        
    for i in range(2):
        play_tune('G Fs F Ds r E r Gs- A- C r A- C D r:2')
        play_tune('G Fs F Ds r E r C+ r C+ C+ r:4')
        play_tune('G Fs F Ds r E r Gs- A- C r A- C D r:2 Eb r:2 D r:2 C r:4')
    
    play_tune('C C r C r C D r E C r A- G- r:4')
    play_tune('C C r C r C D r E r:8')
    play_tune('C C r C r C D r E C r A- G- r:4')
    play_tune('E E r E r C E r G r:4 G-:1.5 r:4')
    
    play_tune('C r:2 G- r:2 E- r:3 A- r B- r As- A- r')
    play_tune('C E r G A r F G r E  r C D B- r:4')
    for i in range(2):
        play_tune('E C r G- r:2 Gs- r A- F r F A- r:4')
        play_tune('D A:1.5 A A G F r:0.5 E C r:.5 A- G- r:4')
        play_tune('E C r G- r:2 Gs- r A- F r F A- r:4')
        play_tune('B- F F F E D C C- r C- D2 r:4')