"""Last read books."""

import os
import books

lst = []

def add(book):
    if book in lst:
        lst.remove(book)
    lst.append(book)

def compress(current_book):
    """Compress last book.
    
    (if not the same as passed book)
    """

    if lst:
        b = lst[-1]
        if current_book != b:
            lst[-1].compress()

def read():
    if lst:
        lst[-1].read()
    else:
        print "No last book."

def delete():
    """Pick a local book to delete."""

    book = books.choose(lst)
    if book:
        lst.remove(book)
        os.remove(book.l_fname)
        print "Deleted: ", book.title

def choose():
    """Display last read books."""

    print "Latest books are on top.\n"
    nl = lst[:]
    nl.reverse()
    book = books.choose(nl)
    if book:
        book.read()

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