#!/usr/bin/python
# version v14;
#  input valid done

# #Readme; umount /run/user/131/gvfs ; rm -r /run/user/131/gvfs#
# Problem: folder size problem

from Tkinter import *
import tkMessageBox
import subprocess
import thread
import ttk
import re

root = Tk()
root.title("Find Commmand GUI")

# MessageBox to show program info
def myabout():
    tkMessageBox.showinfo("About this program","Name:To Wing Pong\n"\
                          "Student No.: 170034880\n" \
                          "IVE Student"
                          )
# MessageBox to show the help info of the program
def myhelp():
    tkMessageBox.showinfo("fping help",'Find Command GUI\n'\
                          '"Name":\n is for the file or folder you want to search,\n\n'\
                          '"type":\n is for the target you want to search,\n\n'\
                          '"Mindepth":\n means start from which layer you want to search,\n\n'\
                          '"Maxdepth":\n means the maximum layer you want the program to search, \n\n'\
                          'Size:\nmeans the target size,(you cannot search the folder size, because of the find command limit, custom location means the location you want to specify)"\n')

# Exit the GUI program
def myexit():
    root.destroy()



#Menu bar
menubar=Menu(root)

filemenu = Menu(menubar, tearoff=0)
filemenu.add_command(label="About",command=myabout)
filemenu.add_command(label="Help Find ", command=myhelp)
filemenu.add_separator()
filemenu.add_command(label="Exit",command=myexit)
menubar.add_cascade(label="Menu",menu=filemenu)



'''
# Second menu bar button #addition
editmenu = Menu(menubar, tearoff=0)
editmenu.add_command(label="Copy")
editmenu.add_command(label="paste")
menubar.add_cascade(label="Edit",menu=editmenu)
'''

root.config(menu=menubar)


def thread_RunFindCommand():
    thread.start_new_thread(RunFindCommand,())

def RunFindCommand():
    print "Run button is clicked"
    #Result = runcommand()
    txtarea_output.insert(END,runcommand())
    txtarea_output.insert(END,'-------------------------------\n')


# Generate the command and return, Run by runcommand() function
def command_gen():
    print "\nGenerating the find command"

    command= "find "

    # Add location of the finding (combobox)
    print "Checked Location " + str(checked_Location.get())
    if checked_Location.get():
        #command += tb_Location.get()
        command += nx.get()

    # checked MinDepth and MaxDepth are both checked and Min should not larger or equal to Max
    if checked_MinDepth.get() and checked_MaxDepth.get():
        if (int(tb_MinDepth.get())) >= (int(tb_MaxDepth.get())):
            tkMessageBox.showinfo('DepthErro','The MinDepth should not larger or equal to MaxDepth')
            return ''

    # MinDepth added to command, input validation
    print "Checked option MinDepth " + str(checked_MinDepth.get())
    if checked_MinDepth.get():
        if (re.match('$\d^',tb_MinDepth.get())) and len(tb_MinDepth.get()) > 0:
            command += " -mindepth " + tb_MinDepth.get()
        else:
            tkMessageBox.showinfo("InputError","The Mindepth should not empty and only accept integer")
            print "terminated to generate command, due to invalid input MinDepth"
            return ""

    # MaxDepth added to command, input validation
    print "Checked option MaxDepth " + str(checked_MaxDepth.get())
    if checked_MaxDepth.get():
        if (re.match('^\d+$',tb_MaxDepth.get())) and len (tb_MinDepth.get()) > 0:
            command += " -maxdepth " + tb_MaxDepth.get()
        else:
            tkMessageBox.showinfo("InputError","The Maxdepth should not empty and only accept integer")
            print "terminated to generate command, due to invali input MaxDepth"
            return ""

    # Size added to command, input valid
    print "Checked Size " + str(checked_Size.get())
    # if checked_Size.get(): <--This will appear bug if searching directory
    if checked_Size.get() and FileType.get() != 2:
        if re.match('^\d+$',tb_Size.get()) and ((int)(tb_Size.get())) > 0:
            command += " -size -" + tb_Size.get()+ "b"
        else:
            tkMessageBox.showinfo("SizeError","The Size shoud not be empty and only accept integer that greater than 0")
            print "terminated to generate command, due to invalid input size"
            return ""

    # Added File Type to command
    print "\nChecked option Type " + str(FileType.get())
    if FileType.get()==0:
        command = command
    elif FileType.get()==1:
        command += " -type f"
    elif FileType.get()==2:
        command += " -type d"

    # Fuzzy name search (case insentasive)
    command += " -iname " + "\"*" + tb_Name.get() + "*\""

    # Finally # Return the generated command

    return command

# Run by main RunFindCommand() function
def runcommand():
    print "\n\nRun command and get return!"
    input_command=command_gen()

    print "\n" + input_command + "\n"

    #SaveResult =  subprocess.check_output ('pwd',shell=True) #Debug


    pb.grid(row=7,column=0,padx=5,pady=10,columnspan=10)
    thread.start_new_thread(pb.start,())
    SaveResult = subprocess.check_output (input_command,shell=True)

    result = "Output:   This is the found result\n...\n...\n..."
    #print SaveResult #print out result in terminal #debug
    print "...\n...\nPrinted result\n\n"
    #Return the result
    pb.stop()
    pb.grid_forget()
    return SaveResult



# Clear the find result
def ClearResult():
    txtarea_output.delete(1.0,END)
def ResetAll():

    # txtarea reset is start from 0 (0th index), entry reset is start from 1.0 (1st line),
    #  decimal means how many index delete once

    #Entry reset
    tb_Name.delete(0,END)
    #TxtArea reset #Txtarea
    #txtarea_output.delete(1.0,END)
    ClearResult()

    #Location reset # Option Menu
    checked_Location.set(1)
    nx.set("~/Desktop")

    #tb_Location.delete(0,END)

    #Size Reset
    checked_Size.set(0)
    tb_Size.delete(0,END)

    # Depth Reset
    checked_MaxDepth.set(0)
    checked_MinDepth.set(0)

    tb_MaxDepth.delete(0,END)
    tb_MinDepth.delete(0,END)

    # Reset type to 'All Type'
    FileType.set(0)




# Label of the 'Name', this is the file user want to search
lb_Name = Label(root, text="Name",justify=LEFT)
lb_Name.grid(row=0, column=0,padx=0,pady=7)

# Entry of the 'Name'
tb_Name = Entry(root,bd=3,width=35)
tb_Name.grid(row=0, column=1, columnspan=2, padx=0,pady=7)



# Option of file Type
# File type radio button (value 1=All 2=File, 3=Dir)

FileType=IntVar()
rb_optionA = Radiobutton(root,text="All type",variable=FileType,value=0)
rb_optionB = Radiobutton(root,text="File",variable=FileType,value=1)
rb_optionC = Radiobutton(root,text="Directory",variable=FileType,value=2)
rb_optionA.grid(row=1, column=0)
rb_optionB.grid(row=1, column=1)
rb_optionC.grid(row=1, column=2)


# row = 2
# Mindepth level

# label of 'MinDepth'
lb_MinDepth = Label(root, text="Mindepth")
lb_MinDepth.grid(row=2,column=0)

# Entry of 'MinDepth'
tb_MinDepth=Entry(root,bd=2,width=5)
tb_MinDepth.grid(row=2,column=1,columnspan=1,pady=1,sticky=W)

    # Enable button
checked_MinDepth=IntVar()
cb_MinDepth=Checkbutton(root,variable=checked_MinDepth)
cb_MinDepth.grid(row=2,column=2)



# row = 3
# MaxDeptih levelss

# Label of 'MaxDepth'
lb_MaxDepth = Label(root, text="MaxDepth")
lb_MaxDepth.grid(row=3,column=0)

# Entry of 'MaxDepth'
tb_MaxDepth=Entry(root,bd=2,width=5)
tb_MaxDepth.grid(row=3,column=1,columnspan=1,pady=1,sticky=W)

    # Enable button
checked_MaxDepth=IntVar()
cb_MaxDepth=Checkbutton(root,variable=checked_MaxDepth)
cb_MaxDepth.grid(row=3,column=2)



# row = 4
# Option of size

#label of size
lb_Size=Label(text="Size (byte), <")
lb_Size.grid(row=4,column=0)

# Entry of size
tb_Size=Entry(root,bd=2,width=10)
tb_Size.grid(row=4,column=1,pady=1,sticky=W)

    # Enable 'Size' button
checked_Size=IntVar()
cb_Size=Checkbutton(root,variable=checked_Size)
cb_Size.grid(row=4,column=2)


# row = 5
# Custom Location
lb_Location = Label(root, text="Custom Location")
lb_Location.grid(row=5,column=0)

# Combobox of location
nx=StringVar(root)
nx.set("~/Desktop")
tb_Location=OptionMenu(root,nx,"~/Dekstop","~/Documents","~/Downloads","~/Pictures","~/Videos","~/Music","~/","/")
tb_Location.config(width=10)
tb_Location.grid(row=5,column=1,columnspan=1,pady=1,sticky=W)

    # Enable button of custom location
checked_Location=IntVar()
cb_Location=Checkbutton(root,variable=checked_Location)
cb_Location.grid(row=5,column=2)
checked_Location.set(1)

# row = 6
# Clear find result  button
btn_Reset = Button(root, text="ClearResult",bd=3,command=ClearResult)
btn_Reset.grid(row=6, column=0)

# Reset Button
btn_Reset = Button(root, text="Reset",bd=3,command=ResetAll)
btn_Reset.grid(row=6, column=1)


# Run button
btn_run = Button(root, text="Run!",bd=3,command=thread_RunFindCommand)
btn_run.grid(row=6, column=2)

# Process bar
pb=ttk.Progressbar(root,orient="horizontal",length=250,mode="indeterminate")

# A label of result "Command Output:"
lb_commandoutput = Label(root, text="Command Output:")
lb_commandoutput.grid(row=8, column=0)

# A txtbox to display the result of the find command
txtarea_output = Text(root, height=10, width=50)
txtarea_output.grid(row=9, column=0, columnspan=4,padx=9,pady=12)

# Add Scroll bar to the left of the txtarea result box
scr_output = Scrollbar(root,orient='vertical')
scr_output.grid(row=9,column=3,sticky=S+N+E,padx=9,pady=12)
txtarea_output.config(yscrollcommand=scr_output.set)
scr_output.config(command=txtarea_output.yview)




# keep the GUI alive
root.mainloop()