from templates import Template

from bkmark import Bookmark

from webutils import load_index

from templates import Template

from keywords import add_unique_keywords

import os

def get_bk_from_form(form):

        bk = Bookmark()

        bk.id = int(form['id'].value)

        bk.url = form['url'].value

        if form.has_key('name'):

                bk.name = form['name'].value

        if form.has_key('desc'):

                bk.desc = form['desc'].value

        return bk

def get_kw_from_form(form):

        kw = form.getvalue("kw")

        if not isinstance(kw, type([])):

                if kw:

                        kw = [kw]

                else:

                        kw = []

        kw = map(int, kw)

        return kw

def get_new_kw_from_form(form, sep =','):

        if form.has_key('newkw'):

                kw= map(lambda e: e.strip(),

                        form['newkw'].value.split(','))

                return filter(lambda x: x != '', kw)

        else:

                return []

def get_unique_keywords(form, db):

      kw = get_kw_from_form(form)

      kw = set(map(db.get_keyword, kw))

      return list(kw.union(get_new_kw_from_form(form)))

def edit(db, prefs, form, id):

    name = url = ""

    if form.has_key("ctitle"):

        name = form["ctitle"].value

    if form.has_key("curl"):

        url = form["curl"].value

    kw = db.get_all_keywords()[1:]

    kw.sort(lambda l,r: cmp(l[1],r[1]))

    kw = map(lambda elem: {

         'id' : elem[0],

         'keyword' : elem[1],

         'checked' : 0 }, kw)

    print_edit(id, kw, name, url, prefs)

def confirm(step, bk, kw, prefs):

    tmpl = Template("add_confirm.tmpl", prefs)

    confirmation = "Unknown!"

    if (step == 'delete'):

    	confirmation = "Delete" 

    elif (step == 'update'):

    	confirmation = "Update"

    tmpl.set("confirmation", confirmation)

    tmpl.set("step", step)

    tmpl.set("id", bk.id)

    tmpl.set("name", bk.name)

    tmpl.set("url", bk.url)

    tmpl.set("Keywords", map(lambda x: {'keyword': x }, kw))

    tmpl.set("desc", bk.desc)

    print tmpl.process()

def print_edit(id, keywords, title, url, prefs):

    tmpl = Template("add_bk.tmpl", prefs)

    tmpl.set('ctitle', title)

    tmpl.set('curl', url)

    tmpl.set('desc', '')

    tmpl.set('bkid', id)

    tmpl.set('Keywords', keywords)

    print tmpl.process()

def update_bookmark(db, form):

	bk = get_bk_from_form(form)

	id = bk.id

	if (bk.id == -1):

		id = db.add_bookmark(bk)

	else:

		db.update_bookmark(bk)

	kw = add_unique_keywords(db, get_unique_keywords(form, db))

	db.update_keywords(id, kw.values())

def do_it(action, db, prefs, form):

        if form.has_key('id'):

                id = int(form['id'].value)

        else:

                id = -1;

        if form.has_key('step'):

                step = form['step'].value

        else:

                step = 'edit'

        if step == 'edit':

                edit(db, prefs, form, id)

	elif step == 'confirm':

		update_bookmark(db, form)

                load_index(db, prefs, form, "result", "Bookmark update")

        elif step == 'cancel' or (action == 'delete' and id == -1):

                load_index(db, prefs, form, "err", "Operation cancel")

        else:

                if step == 'update':

                        bk = get_bk_from_form(form)

                        kw = get_unique_keywords(form, db)

                else:

                        bk = db.get_bookmarks([id])[0]

                        (ids, kw) = apply(zip,db.get_keywords([id]))

                        kw = kw[1:]

                confirm(step, bk, kw, prefs)