def printv(v):
    for each in v:
        print(each)
def open_random_from_list(filelist):
    import os
    from random import choice
    size=len(filelist)
    rn=choice(range(size))
    song=filelist[rn]
    os.startfile(song)
    return (rn,song)
def load_string_list_utf8(filename):
    import io
    v=[]
    with io.open(filename,'r',encoding='utf8') as fileobj:
        while True:
            line = fileobj.readline()
            if not line:
                break
            v.append(line[:-1])
    return v
def create_file_library(exts,ndirs):
    import os
    file_library=[]
    for ndir in ndirs:
        for path,dirs,files in os.walk(ndir):
            for fn in files:
                if os.path.splitext(fn)[1] in exts:
                    file_library.append(os.path.join(path,fn))
    return file_library
def write_lib_obj(v,filename):
    import sys
    io=open(filename,'wb')
    io.write((v["libtype"]         + '\x0d\x0a'+
             ",".join(v["dirs"]) + '\x0d\x0a').encode('utf-8'))
    for each in v["lib"]:
        each+='\x0d\x0a'
        try:
            io.write(bytes(each.encode('utf-8')))
        except:
            print('write failed')
    io.close()
def load_lib_obj_from_file(filename):
    import io
    d={}
    with io.open(filename,'r',encoding='utf8') as fileobj:
        line = fileobj.readline()[:-1]
        d["libtype"]=line
        line = fileobj.readline()[:-1]
        d["dirs"]=line.split(',')
        d["lib"]=[]
        while True:
            line = fileobj.readline()
            if not line:
                break
            d["lib"].append(line[:-1])
    return d

# global variables
glibfn='guilib.txt'
gextd={'music':['.mp3','.wav','.flac'],'video':['.mp4','.avi','.wmv']}
try:
    #load from ram
    print('ram obj')
    glibobj=oldlibobj
except:
    #load from file
    print('file obj')
    try:
        glibobj=load_lib_obj_from_file(glibfn)
    except:
        #default obj
        print('default obj')
        glibobj={'libtype':'music'
                 ,'dirs':[r'C:\Users\X\Music']
                 ,'lib':[]
                 }
glibobj['index']=0
#try:
#    print("grn=",grn)
from random import choice
import os
def parse_ui():
    s=entry_handle.get()
    print('entrytext=',s)
#    global gdirs
    glibobj['dirs']=s.split(',')
    print (glibobj)
def button1fn():#play random
    tu=open_random_from_list(glibobj['lib'])
    glibobj['index']=tu[0]
    print (tu)
    update_ui()
def first_in_folder():
    i=glibobj['index']
    v=glibobj['lib']
    while i>=0 and os.path.split(v[i])[0]==os.path.split(v[i-1])[0]:
        i=i-1
    return i
def last_in_folder():
    i=glibobj['index']
    v=glibobj['lib']
    while i<len(v) and os.path.split(v[i])[0]==os.path.split(v[i+1])[0]:
        i=i+1
    return i
def button2fn():# reload library
    parse_ui()
#    libtype=glibobj['libtype']
#    dirs=glibobj['dirs']
#    print(libtype,dirs)
#    lib=create_file_library(exts)
    print(v.get())
    glibobj['libtype']=v.get()
    print(v.get())
    glibobj['lib']=create_file_library(gextd[glibobj['libtype']],glibobj['dirs'])
    write_lib_obj(glibobj,glibfn)
    print('glib size=',len(glibobj['lib']))
def button3fn():#previous
    import os
    glibobj['index']=glibobj['index']-1
    os.startfile(glibobj["lib"][glibobj['index']])
    update_ui()
def button4fn():#next
    import os
    glibobj['index']=glibobj['index']+1
    os.startfile(glibobj["lib"][glibobj['index']])
    update_ui()
def button5fn():#open folder containing song
    import os
    path=os.path.dirname(glibobj["lib"][glibobj["index"]])
    os.startfile(path)
def run_command(cmd):
    import time
    print('cmd=',cmd)
    import subprocess
    p = subprocess.Popen(cmd, shell=True,
        stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    time.sleep(.02)
def play_random_folder():
    import subprocess
    g=glibobj
    g['index']=choice(range(len(g['lib'])))
    i=first_in_folder()
    i2=last_in_folder()
    print(i,i2)
    update_ui()
    winamp = '"C:\\Program Files (x86)\\Winamp\\winamp.exe"'
    winamp_add = '"C:\\Program Files (x86)\\Winamp\\winamp.exe"/ADD'
    run_command(winamp+' "'+os.path.split(g['lib'][i])[0]+'"')
    #for j in range(i+1,i2+1):
        #run_command(winamp_add+' "'+g['lib'][j]+'"')
def update_ui():
    import os
    grn=glibobj['index']
    entry_handle2.delete(0,END)
    entry_handle2.insert(0,str(grn))
    entry_handle3.delete(0,END)
    entry_handle3.insert(0,os.path.dirname(glibobj["lib"][grn]))
    entry_handle4.delete(0,END)
    entry_handle4.insert(0,os.path.basename(glibobj["lib"][grn]))
    entry_handle5.delete(0,END)
    entry_handle5.insert(0,glibobj["lib"][grn])
import tkinter
from tkinter import *
from tkinter.ttk import *

window = tkinter.Tk()
window.geometry("400x300")
window.title("Jukebox")

button1=tkinter.Button(window,text='play random',command=button1fn)
button1.pack(fill="x")
button3=tkinter.Button(window,text='previous',command=button3fn)
button3.pack(fill="x")
button4=tkinter.Button(window,text='next',command=button4fn)
button4.pack(fill="x")
button2=tkinter.Button(window,text='load new library',command=button2fn)
button2.pack(fill="x")
button5=tkinter.Button(window,text='opend folder',command=button5fn)
button5.pack(fill="x")
button6_play_random_folder=tkinter.Button(window,text='play random folder',command=play_random_folder)
button6_play_random_folder.pack(fill="x")
entry_handle5=tkinter.Entry(window)
entry_handle5.pack(fill="x")
entry_handle4=tkinter.Entry(window)
entry_handle4.pack(fill="x")
entry_handle3=tkinter.Entry(window)
entry_handle3.pack(fill="x")
entry_handle2=tkinter.Entry(window)
entry_handle2.pack(fill="x")
entry_handle=tkinter.Entry(window)
entry_handle.insert(0,",".join(glibobj['dirs']))
entry_handle.pack(fill="x")

v = StringVar(window, glibobj['libtype'])

# Dictionary to create multiple buttons
values = {"music" : "music"
         ,"video" : "video"
          }

# Loop is used to create multiple Radiobuttons
# rather than creating each button separately
for (text, value) in values.items():
    Radiobutton(window, text = text, variable = v,
        value = value).pack(side = TOP, ipady = 5)



window.mainloop()
oldlibobj=glibobj