From 4b0db35899a54498a38b49337d3c769d05944d59 Mon Sep 17 00:00:00 2001
From: Felix Bauckholt <felixbauckholt@gmail.com>
Date: Fri, 19 Feb 2016 21:57:54 -0500
Subject: [PATCH] Replace the stub of the library with a system call to
 "librarian"

---
 ceo/library.py       | 122 ---------------
 ceo/urwid/library.py | 343 +------------------------------------------
 etc/library.cf       |   5 -
 3 files changed, 4 insertions(+), 466 deletions(-)
 delete mode 100644 ceo/library.py
 delete mode 100644 etc/library.cf

diff --git a/ceo/library.py b/ceo/library.py
deleted file mode 100644
index 8445064f9..000000000
--- a/ceo/library.py
+++ /dev/null
@@ -1,122 +0,0 @@
-from sqlobject import *
-from sqlobject.sqlbuilder import *
-from ceo import conf
-from ceo import members
-from ceo import terms
-import time
-from datetime import datetime, timedelta
-
-CONFIG_FILE = "/etc/csc/library.cf"
-
-cfg = {}
-
-def configure():
-    """
-    Load configuration
-    """
-    cfg_fields = [ "library_connect_string" ]
-    
-    temp_cfg = conf.read(CONFIG_FILE)
-    conf.check_string_fields(CONFIG_FILE, cfg_fields, temp_cfg)
-    cfg.update(temp_cfg)
-    
-    sqlhub.processConnection = connectionForURI(cfg["library_connect_string"])
-
-class Book(SQLObject):
-    """
-    A book.  This does all the stuff we could
-    ever want to do with a book.
-    """
-    isbn = StringCol()
-    title = StringCol()
-    year = StringCol()
-    publisher = StringCol()
-    authors = SQLRelatedJoin("Author")
-    signouts = SQLMultipleJoin("Signout")
-
-    def sign_out(self, u):
-        """
-        Call this with a username to sign out
-        a book.
-        """
-        if members.registered(u, terms.current()):
-            s = Signout(username=u, book=self,
-                        outdate=datetime.today(), indate=None)
-
-    def sign_in(self, u):
-        """
-        Call this to check a book back in to
-        the library.  Username is used to
-        disambiguate in case more than one
-        copy of this book has been signed out.
-        """
-        s = self.signouts.filter(AND(Signout.q.indate==None, Signout.q.username==u))
-        if s.count() > 0:
-            list(s.orderBy(Signout.q.outdate).limit(1))[0].sign_in()
-            return True
-        else:
-            raise Exception("PEBKAC:  Book not signed out!")
-
-    def __str__(self):
-        """
-        Magic drugs to make books display
-        nicely.
-        """
-        book = "%s [%s]" % (self.title, self.year)
-        book += "\nBy: "
-        for a in self.authors:
-            book += a.name
-            book += ", "
-
-        if self.authors.count() < 1:
-            book += "(unknown)"
-
-        book = book.strip(", ")
-
-        signouts = self.signouts.filter(Signout.q.indate==None)
-        if signouts.count() > 0:
-            book += "\nSigned Out: "
-            for s in signouts:
-                book += s.username + " (" + str(s.due_date) + "), "
-
-        book = book.strip(", ")
-        
-        return book
-
-
-class Author(SQLObject):
-    """
-    An author can author many books, and a book
-    can have many authors.  This lets us map
-    both ways.
-    """
-    name = StringCol()
-    books = RelatedJoin("Book")
-
-class Signout(SQLObject):
-    """
-    An instance of a signout associates usernames,
-    books, signout dates, and return dates to mark
-    that a book has been signed out by a particular
-    user.
-    """
-    username = StringCol()
-    book = ForeignKey("Book")
-    outdate = DateCol()
-    indate = DateCol()
-
-    def sign_in(self):
-        """
-        Terminate the signout (return the book).
-        """
-        self.indate = datetime.today()
-
-    def _get_due_date(self):
-        """
-        Compute the due date of the book based on the sign-out
-        date.
-        """
-        return self.outdate + timedelta(weeks=2)
-
-if __name__ == "__main__":
-    print "This functionality isn't implemented yet."
diff --git a/ceo/urwid/library.py b/ceo/urwid/library.py
index 2aca3aa1b..fac59b217 100644
--- a/ceo/urwid/library.py
+++ b/ceo/urwid/library.py
@@ -1,343 +1,8 @@
-import urwid
-from ceo import members
-from ceo.urwid import search
-from ceo.urwid.widgets import *
+import os
 from ceo.urwid.window import *
-from sqlobject.sqlbuilder import *
-from datetime import datetime, timedelta
-from ceo.pymazon import PyMazon
-from ceo.pymazon import PyMazonError
-from ceo import conf
 
-from ceo import terms
-
-import ceo.library as lib
-
-CONFIG_FILE = "/etc/csc/library.cf"
-
-cfg = {}
-
-def configure():
-    """
-    Load configuration
-    """
-    cfg_fields = [ "aws_account_key", "aws_secret_key" ]
-    temp_cfg = conf.read(CONFIG_FILE)
-    conf.check_string_fields(CONFIG_FILE, cfg_fields, temp_cfg)
-    cfg.update(temp_cfg)
 
 def library(data):
-    """
-    Create the main menu for the library system.
-    """
-    menu = make_menu([
-        ("Checkout Book", checkout_book, None),
-        ("Return Book", return_book, None),
-        ("Search Books", search_books, None),
-        ("Add Book", add_book, None),
-        ("Back", raise_back, None),
-    ])
-    push_window(menu, "Library")
-
-def search_books(data):
-    """
-    Define menus for searching books.
-    """
-    menu = make_menu([
-        ("Overdue Books", overdue_books, None),
-        ("Signed Out Books", outbooks_search, None),
-    ])
-    push_window(menu, "Book Search")
-
-def add_book(data):
-    """
-    Add book to library.  Also stab Sapphyre.
-    """
-    push_wizard("Add Book", [BookAddPage])
-
-def overdue_books(data):
-    """
-    Display a list of all books that are overdue.
-    """
-    oldest = datetime.today() - timedelta(weeks=2)
-    overdue = lib.Signout.select(AND(lib.Signout.q.outdate<oldest, lib.Signout.q.indate==None))
-
-    widgets = []
-
-    for s in overdue:
-        widgets.append(urwid.AttrWrap(ButtonText(None, s.book, str(s.book)),
-                                      None, 'selected'))
-        widgets.append(urwid.Divider())
-        
-    push_window(urwid.ListBox(widgets))
-
-    None
-
-def outbooks_search(data):
-    """
-    Display a list of all books that are signed out.
-    """
-    overdue = lib.Signout.select(lib.Signout.q.indate==None)
-
-    widgets = []
-
-    for s in overdue:
-        widgets.append(urwid.AttrWrap(ButtonText(None, s.book, str(s.book)),
-                                      None, 'selected'))
-        widgets.append(urwid.Divider())
-        
-    push_window(urwid.ListBox(widgets))
-
-    None
-
-
-def checkout_book(data):
-    """
-    Display the book checkout wizard.
-    """
-    push_wizard("Checkout", [CheckoutPage, BookSearchPage, ConfirmPage])
-
-def return_book(data):
-    """
-    Display the book return wizard.
-    """
-    push_wizard("Checkout", [CheckinPage, ConfirmPage])
-
-class BookAddPage(WizardPanel):
-    """
-    Thingy for going on screen to add books.
-    """
-    def init_widgets(self):
-        """
-        Make some widgets.
-        """
-        self.isbn = SingleEdit("ISBN: ")
-        
-        self.widgets = [
-            urwid.Text("Adding New Book"),
-            urwid.Divider(),
-            self.isbn
-        ]
-
-    def check(self):
-        """
-        Do black magic.
-        """
-        configure()
-        isbn = self.isbn.get_edit_text()
-
-        try:
-            pymazon = PyMazon(cfg["aws_account_key"], cfg["aws_secret_key"])
-            book = pymazon.lookup(isbn)
-
-            currents = lib.Book.select(lib.Book.q.isbn==isbn)
-            if currents.count() == 0:
-                lib.Book(isbn=isbn, title=book.title,
-                         year=book.year, publisher=book.publisher)
-                pop_window()
-            else:
-                set_status("Book already exists, fucker.")
-        except PyMazonError, e:
-            set_status("Amazon thinks this is not a book.  Take it up with them.")
-        return False
-        
-
-class BookSearchPage(WizardPanel):
-    """
-    The page used when searching for books.
-    """
-    def init_widgets(self):
-        """
-        Initialize the widgets and state variables.
-        """
-        self.search = None
-        self.state["book"] = None
-        self.isbn = SingleEdit("ISBN: ")
-        self.title = SingleEdit("Title: ")
-
-        self.widgets = [
-            urwid.Text("Book Search"),
-            urwid.Text("(Only one field required.)"),
-            urwid.Divider(),
-            self.isbn,
-            self.title
-        ]
-
-    def check(self):
-        """
-        Validate input and update state.
-        """
-        if self.state["book"] is None:
-            push_window(SearchPage(self.isbn.get_edit_text(),
-                                   self.title.get_edit_text(),
-                                   None,
-                                   self.state))
-            return True
-        else:
-            return False
-        
-
-class CheckoutPage(WizardPanel):
-    """
-    The initial page when checking out a book.
-    """
-    def init_widgets(self):
-        """
-        Initialize widgets and set up state.
-
-        user -> the username to sign the book to
-        task -> used for the confirmation dialog
-        """
-        self.state["user"] = "ERROR"
-        self.state["task"] = "sign_out"
-        self.user = LdapWordEdit(csclub_uri, csclub_base, 'uid', "Username: ")
-        
-        self.widgets = [
-            urwid.Text("Book Checkout"),
-            urwid.Divider(),
-            self.user,
-        ]
-
-    def check(self):
-        self.state['user'] = self.user.get_edit_text()
-        if not members.registered(self.state['user'], terms.current()):
-            set_status("User not registered for this term!")
-            return True
-        return False
-
-class ConfirmPage(WizardPanel):
-    """
-    The confirmation screen when checking-in and checking-out
-    a book.
-    """
-    def init_widgets(self):
-        """
-        Initialize widgets and state.
-
-        task -> used to deterimine the action
-        """
-        self.user = urwid.Text("Username: ")
-        self.book = urwid.Text("Book: ")
-
-        title = ""
-        if self.state["task"] and self.state["task"]=="sign_in":
-            title = "Checkin"
-        else:
-            title = "Checkout"
-
-        self.widgets = [
-            urwid.Text("Confirm " + title),
-            urwid.Divider(),
-            self.user,
-            self.book
-        ]
-
-    def activate(self):
-        """
-        Ensures that correct data is displayed.
-        """
-        self.user.set_text("Username: " + self.state["user"])
-        if self.state["book"]:
-            self.book.set_text("Book: " + self.state["book"].title)
-
-    def check(self):
-        """
-        Generally used for validation, but in this case it does
-        the actual book check-out.
-        """
-        #TODO: Validate user at some point (preferrably user entry screen)
-        if self.state["task"] and self.state["task"]=="sign_in":
-            self.state["book"].sign_in(self.state["user"])
-        else:
-            self.state["book"].sign_out(self.state["user"])
-        pop_window()
-
-        
-class SearchPage(urwid.WidgetWrap):
-    """
-    Displays search results.  Can search on isbn,
-    title, or username (for books that are currently
-    out).
-    """
-    def __init__(self, isbn, title, user, state):
-        """
-        This does the actual search, and sets up the screen
-        when it's done.
-
-        title -> search by (partial) title
-        isbn -> search by (partial) isbn
-        user -> search by username (for checked-out books)
-        """
-        self.state = state
-        books = []
-        widgets = []
-        if not title is None and not title=="":
-            books = lib.Book.select(LIKE(lib.Book.q.title, "%" + title + "%"))
-        elif not isbn is None and not isbn=="":
-            books = lib.Book.select(lib.Book.q.isbn==isbn)
-        elif (not (user is None)) and (not (user=="")):
-            st = lib.Signout.select(AND(lib.Signout.q.username==user, lib.Signout.q.indate==None))
-            for s in st:
-                books.append(s.book)
-        else:
-            st = lib.Signout.select(lib.Signout.q.indate==None)
-            for s in st:
-                books.append(s.book)
-
-        if ((type(books) != type([])) and books.count() == 0) or books == []:
-            widgets.append(urwid.Text("No results. Hit ESC to return to search page."))
-            widgets.append(urwid.Divider())
-
-        for b in books:
-            widgets.append(urwid.AttrWrap(ButtonText(self.select, b, str(b)),
-                                          None, 'selected'))
-            widgets.append(urwid.Divider())
-
-        urwid.WidgetWrap.__init__(self, urwid.ListBox(widgets))
-
-    def select(self, book):
-        """
-        Marks a book for check-in or check-out.
-        """
-        self.state["book"] = book
-        pop_window()
-
-class CheckinPage(WizardPanel):
-    """
-    The initial page to start the check-in widget.
-    """
-    def init_widgets(self):
-        """
-        Throw some widgets on the screen and set up
-        some state.
-
-        book -> The book to check out.
-        user -> Stupid people like books.
-        task -> What are we doing?  (For confirm screen.)
-        """
-        self.state["book"] = None
-        self.state["user"] = "ERROR"
-        self.state["task"] = "sign_in"
-        self.user = LdapWordEdit(csclub_uri, csclub_base, 'uid', "Username: ")
-        
-        self.widgets = [
-            urwid.Text("Book Checkin"),
-            urwid.Divider(),
-            self.user,
-        ]
-
-    def check(self):
-        """
-        Pushes the search window.
-
-        Should validate usernames.
-        """
-        if self.state["book"] is None:
-            push_window(SearchPage(None,
-                                   None,
-                                   self.user.get_edit_text(),
-                                   self.state))
-            return True
-        else:
-            self.state["user"] = self.user.get_edit_text()
-            return False
+    os.system("librarian")
+    ui.stop()
+    ui.start()
diff --git a/etc/library.cf b/etc/library.cf
deleted file mode 100644
index afdeccbb8..000000000
--- a/etc/library.cf
+++ /dev/null
@@ -1,5 +0,0 @@
-# /etc/csc/library.cf: Library Config
-
-library_connect_string = "postgres://librarian:PWPWPWPWPWPWPWPWPWPW@127.0.0.1/library"
-aws_account_key = "KEYKEYKEYKEYKEYKEYKY"
-aws_secret_key = "KEYKEYKEYKEYKEYKEYKY"