#!/usr/bin/env python
# -*- coding: iso8859-1 -*-
__version__ = '0.5'
__author__ = 'Daniel Lundin <daniel@edgewall.com>, Jonas Borgström <jonas@edgewall.com>'
__copyright__ = 'Copyright (c) 2004 Edgewall Software'
__license__ = """
 Copyright (C) 2003, 2004 Edgewall Software
 Copyright (C) 2003, 2004 Jonas Borgström <jonas@edgewall.com>
 Copyright (C) 2003, 2004 Daniel Lundin <daniel@edgewall.com>

 Trac is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License as
 published by the Free Software Foundation; either version 2 of
 the License, or (at your option) any later version.

 Trac is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA."""

import os
import os.path
import sys
import time
import cmd
import shlex
import sqlite
import StringIO
import trac.siteconfig

def my_sum(list):
    """Python2.1 doesn't have sum()"""
    tot = 0
    for item in list:
	tot += item
    return tot


class TracAdmin(cmd.Cmd):
    intro = ''
    license = trac.__license_long__
    credits = trac.__credits__

    doc_header = 'Trac Admin Console %(ver)s\n' \
                 'Available Commands:\n' \
                 % {'ver':__version__ }

    
    ruler = ''
    prompt = "Trac> "

    db_schema = """
CREATE TABLE revision (
	rev 		integer PRIMARY KEY,
	time		integer,
	author		text,
	message		text
);
CREATE TABLE node_change (
	rev 		integer,
	name		text,
	change		char(1),
	UNIQUE(rev, name, change)
);
CREATE TABLE auth_cookie (
	cookie		text,
	name		text,
	ipnr		text,
	time		integer,
	UNIQUE(cookie, name, ipnr)
);
CREATE TABLE enum (
	type		text,
	name		text,
	value		text,
	UNIQUE(name,type)
);
CREATE TABLE config (
	section		text,
	name		text,
	value		text,
	UNIQUE(section, name)
);
CREATE TABLE ticket (
	id		integer PRIMARY KEY,
	time		integer,	-- the time it was created
	changetime	integer,
	component	text,
	severity	text,
	priority	text,
	owner		text,		-- who is this ticket assigned to
	reporter	text,
	cc		text,		-- email addresses to notify
	url		text,		-- url related to this ticket
	version		text,		-- 
	milestone	text,		-- 
	status		text,
	resolution	text,
	summary		text,		-- one-line summary
	description	text		-- problem description (long)
);
CREATE TABLE ticket_change (
	ticket		integer,
	time		integer,
	author		text,
	field		text,
	oldvalue	text,
	newvalue	text
);
CREATE TABLE report (
	id		integer PRIMARY KEY,
	author		text,
	title		text,
	sql		text
);
CREATE TABLE permission (
	user		text,		-- 
	action		text		-- allowable activity
);
CREATE TABLE component (
	 name		 text PRIMARY KEY,
	 owner		 text
);
CREATE TABLE milestone (
	 name		 text PRIMARY KEY,
	 time		 integer
);
CREATE TABLE version (
	 name		 text PRIMARY KEY,
	 time		 integer
);
CREATE TABLE wiki (
	 name		 text,
	 version		 integer,
	 time		 integer,
	 author		 text,
	 ipnr		 text,
	 locked		 integer,
	 text		 text,
	 UNIQUE(name,version)
);
CREATE INDEX node_change_idx ON node_change(rev);
CREATE INDEX ticket_change_idx	ON ticket_change(ticket, time);
CREATE INDEX wiki_idx		ON wiki(name,version);
"""

    # Default data for database
    # (table, (column1, column2), ((row1col1, row1col2), (row2col1, row2col2)))
    db_data = (('component',
                 ('name', 'owner'),
                   (('component1', 'somebody'),
                    ('component2', 'somebody'))),
               ('milestone',
                 ('name', 'time'),
                   (('', 0), 
                    ('milestone1', 0),
                    ('milestone2', 0),
                    ('milestone3', 0),
                    ('milestone4', 0))),
               ('version',
                 ('name', 'time'),
                   (('', 0),
                    ('1.0', 0),
                    ('2.0', 0))),
               ('enum',
                 ('type', 'name', 'value'),
                   (('status', 'new', 1),
                    ('status', 'assigned', 2),
                    ('status', 'reopened', 3),
                    ('status', 'closed', 4),
                    ('resolution', 'fixed', 1),
                    ('resolution', 'invalid', 2),
                    ('resolution', 'wontfix', 3),
                    ('resolution', 'duplicate', 4),
                    ('resolution', 'worksforme', 5),
                    ('severity', 'blocker', 1),
                    ('severity', 'critical', 2),
                    ('severity', 'major', 3),
                    ('severity', 'normal', 4),
                    ('severity', 'minor', 5),
                    ('severity', 'trivial', 6),
                    ('severity', 'enhancement', 7),
                    ('priority', 'highest', 1),
                    ('priority', 'high', 2),
                    ('priority', 'normal', 3),
                    ('priority', 'low', 4),
                    ('priority', 'lowest', 5))),
               ('permission',
                 ('user', 'action'),
                   (('anonymous', 'LOG_VIEW'),
                    ('anonymous', 'FILE_VIEW'),
                    ('anonymous', 'WIKI_VIEW'),
                    ('anonymous', 'WIKI_CREATE'),
                    ('anonymous', 'WIKI_MODIFY'),
                    ('anonymous', 'SEARCH_VIEW'),
                    ('anonymous', 'REPORT_VIEW'),
                    ('anonymous', 'TICKET_VIEW'),
                    ('anonymous', 'TICKET_CREATE'),
                    ('anonymous', 'TICKET_MODIFY'),
                    ('anonymous', 'BROWSER_VIEW'),
                    ('anonymous', 'TIMELINE_VIEW'),
                    ('anonymous', 'CHANGESET_VIEW'))),
               ('config',
                 ('section', 'name', 'value'),
                   (('trac', 'database_version', '1'),
                    ('general', 'htdocs_location', '/trac/'),
                    ('general', 'repository_dir', '/var/svn/myrep'),
                    ('general', 'templates_dir', '/usr/lib/trac/templates'),
                    ('project', 'name', 'My Project'),
                    ('project', 'descr', 'My example project'),
                    ('project', 'url', 'http://example.com/'),
                    ('ticket', 'default_version', ''),
                    ('ticket', 'default_severity', 'normal'),
                    ('ticket', 'default_priority', 'normal'),
                    ('ticket', 'default_milestone', ''),
                    ('ticket', 'default_component', 'component1'),
                    ('header_logo', 'link', 'http://trac.edgewall.com/'),
                    ('header_logo', 'src', 'trac_banner.png'),
                    ('header_logo', 'alt', 'Trac'),
                    ('header_logo', 'width', '236'),
                    ('header_logo', 'height', '73'))),
               ('report',
                 ('id', 'author', 'title', 'sql'),
                   (('1', None, 'Active Tickets',
                     "SELECT id AS ticket, status, severity, priority, owner, "
                     "time as created, summary FROM ticket "
                     "WHERE status IN ('new', 'assigned', 'reopened')"
                     "ORDER BY priority, time"),)))
    
    def __init__(self,dbfile=None):
        cmd.Cmd.__init__(self)
        self.interactive = 0
        if dbfile:
            self.db_set(dbfile)

    def docmd(self, cmd='help'):
        self.onecmd(cmd)

    def run(self):
        self.interactive = 1
        print 'Welcome to trac-admin %(ver)s\n' 			\
              'Interactive Trac adminstration console.\n' 		\
              '%(copy)s\n\n' 					\
              "Type:  '?' or 'help' for help on commands.\n" % 	\
              {'ver':__version__,'copy':__copyright__}
        while 1:
            try:
                self.cmdloop()
                break
            except KeyboardInterrupt:
                print "\n** Interrupt. Use 'quit' to exit **"


    ##
    ## Database methods
    ##

    def db_set(self, dbfile):
        self.dbname = dbfile
        self.prompt = "Trac [%s]> " % self.dbname

    def db_check(self):
        if os.path.isfile(self.dbname):
            f = open (self.dbname)
            data = f.read (50)
            if -1 == data.find("This file contains an SQLite"):
                return 0
            f.close()
            return 1
        return 0
        
    def db_open(self):
        try:
            if not self.db_check():
                raise Exception
            return sqlite.connect (self.dbname)
        except Exception, e:
            print 'Failed to open/create database.', e
            sys.exit(1)

    def db_execsql (self, sql, cursor=None):
        data = []
        if not cursor:
            cnx=self.db_open()
            cursor = cnx.cursor()
        else:
            cnx = None
        cursor.execute(sql)
        while 1:
            row = cursor.fetchone()
            if row == None:
                break
            data.append(row)
        if cnx:
            cnx.commit()
        return data

    ##
    ## Utility methods
    ##

    def arg_tokenize (self, argstr):
        if hasattr(shlex, 'split'):
            toks = shlex.split(argstr)
        else:
	    def my_strip(s, c):
		"""string::strip in python2.1 doesn't support arguments"""
		i = j = 0
		for i in range(len(s)):
		    if not s[i] in c:
			break
		for j in range(len(s), 0, -1):
		    if not s[j-1] in c:
			break
		return s[i:j]
	
	    lexer = shlex.shlex(StringIO.StringIO(argstr))
            lexer.wordchars = lexer.wordchars + ".,_/"
            toks = []
            while 1:
                token = my_strip(lexer.get_token(), '"\'')
                if not token:
                    break
                toks.append(token)
        return toks or ['']

    def word_complete (self, text, words):
        return [a for a in words if a.startswith (text)]

    def print_listing(self, headers, data, sep=' ',decor=1):
        ldata = data
        if decor:
            ldata.insert (0, headers)
        print
        colw=[]
        ncols = len(ldata[0]) # assumes all rows are of equal length
        for cnum in xrange(0, ncols):
            mw = 0
            for cell in [str(d[cnum]) or '' for d in ldata]:
                if len(cell) > mw:
                    mw = len(cell)
            colw.append(mw)
        for rnum in xrange(0, len(ldata)):
            for cnum in xrange(0, ncols):
                if decor and rnum == 0:
                    sp = ('%%%ds' % len(sep)) % ' '  # No separator in header
                else:
                    sp = sep
                if cnum+1 == ncols: sp = '' # No separator after last column
                print ("%%-%ds%s" % (colw[cnum], sp)) % (ldata[rnum][cnum] or ''),
            print
            if rnum == 0 and decor:
                print ''.join(['-' for x in xrange(0,(1+len(sep))*cnum+my_sum(colw))])
        print

    def print_doc(self,doc,decor=0):
        if not doc: return
        self.print_listing (['Command','Description'], doc, '  --', decor) 

    def get_component_list (self):
        data = self.db_execsql ("SELECT name FROM component")
        return [r[0] for r in data]

    def get_config_list (self):
        data = self.db_execsql ("SELECT section||'.'||name FROM config")
        return [r[0] for r in data]

    def get_user_list (self):
        data = self.db_execsql ("SELECT DISTINCT user FROM permission")
        return [r[0] for r in data]

    def get_wiki_list (self):
        data = self.db_execsql('SELECT DISTINCT name FROM wiki') 
        return [r[0] for r in data]

    def get_dir_list (self, pathstr):
        dname = os.path.dirname(pathstr)
        d = os.path.join(os.getcwd(), dname)
        ls = os.listdir(d)
        return ls

    def get_enum_list (self, type):
        data = self.db_execsql("SELECT name FROM enum WHERE type='%s'" % type) 
        return [r[0] for r in data]

    def get_milestone_list (self):
        data = self.db_execsql("SELECT name FROM milestone") 
        return [r[0] for r in data]

    def get_version_list (self):
        data = self.db_execsql("SELECT name FROM version") 
        return [r[0] for r in data]


    ##
    ## Available Commands
    ##

    ## Help
    _help_help = [('help', 'Show documentation')]

    def do_help(self, line=None):
        arg = self.arg_tokenize(line)
        if arg[0]:
            try:
                doc = getattr(self, "_help_" + arg[0])
                self.print_doc (doc)
            except AttributeError:
                print "No documentation found for '%s'" % arg[0]
        else:
            docs = (self._help_about + self._help_help + self._help_initdb +
                    self._help_config + self._help_wiki +
                    self._help_permission + self._help_component +
                    self._help_priority + self._help_severity + 
                    self._help_version + self._help_milestone)
            print 'trac-admin - The Trac Administration Console %s' % __version__
            if not self.interactive:
                print
                print "Usage: trac-admin <dbfile> [command [subcommand] [option ...]]\n"
                print "Invoking trac-admin without command starts "\
                       "interactive mode."
            self.print_doc (docs)
            print self.credits

    
    ## About / Version
    _help_about = [('about', 'Shows information about trac-admin')]

    def do_about(self, line):
        print
        print 'Trac Admin Console %s' % __version__
        print '================================================================='
        print self.license
        print self.credits


    ## Quit / EOF
    _help_quit = [['quit', 'Exit the program']]
    _help_EOF = _help_quit

    def do_quit(self,line):
        print
        sys.exit()

    do_EOF = do_quit # Alias


    ## Config
    _help_config = [('config list', 'Show current configuration'),
                     ('config set <option> <value>', 'Set config')]

    def complete_config (self, text, line, begidx, endidx):
        if begidx > 10 and line.startswith('config set'):
            comp = self.get_config_list()
        else:
            comp = ['list','show','set']
        return self.word_complete(text, comp)

    def do_config(self, line):
        arg = self.arg_tokenize(line)        
        try:
            if arg[0] in ['list', 'show']:
                self._do_config_list()
            elif arg[0] == 'set' and len(arg)==3:
                name = arg[1]
                value = arg[2]
                self._do_config_set(name, value)
            else:    
                self.do_help('config')
        except Exception, e:
            print "Config %s failed:" % arg[0], e

    def _do_config_list(self):
        data = self.db_execsql ('SELECT section, name, value FROM config')
        ldata = [[r[0]+'.'+r[1],r[2]] for r in data]
        self.print_listing(['Name', 'Value'], ldata)

    def _do_config_set(self, name, value):
        try:
            cfsection, cfname = name.split('.')
        except ValueError, e:
            raise Exception, "No such config option '%s'" % name
        data = self.db_execsql ("SELECT value FROM config WHERE "
                                    "section='%s' AND name='%s'" % (cfsection, cfname))
        if not data:
            raise Exception, "No such config option '%s'" % name
        self.db_execsql("UPDATE config SET value='%s' WHERE "
                        "section='%s' AND name='%s'" % (value, cfsection, cfname))
        

    ## Component
    _help_component = [('component list', 'Show available components'),
                       ('component add <name> <owner>', 'Add a new component'),
                       ('component rename <name> <newname>', 'Rename a component'),
                       ('component remove <name>', 'Remove/uninstall component'),
                       ('component chown <name> <owner>', 'Change component ownership')]

    def complete_component (self, text, line, begidx, endidx):
        if begidx in [16,17]:
            comp = self.get_component_list()
        elif begidx > 15 and line.startswith('component chown '):
            comp = self.get_user_list()
        else:
            comp = ['list','add','rename','remove','chown']
        return self.word_complete(text, comp)

    def do_component(self, line):
        arg = self.arg_tokenize(line)
        try:
            if arg[0]  == 'list':
                self._do_component_list()
            elif arg[0] == 'add' and len(arg)==3:
                name = arg[1]
                owner = arg[2]
                self._do_component_add(name, owner)
            elif arg[0] == 'rename' and len(arg)==3:
                name = arg[1]
                newname = arg[2]
                self._do_component_rename(name, newname)
            elif arg[0] == 'remove'  and len(arg)==2:
                name = arg[1]
                self._do_component_remove(name)
            elif arg[0] == 'chown' and len(arg)==3:
                name = arg[1]
                owner = arg[2]
                self._do_component_set_owner(name, owner)
            else:    
                self.do_help ('component')
        except Exception, e:
            print 'Component %s failed:' % arg[0], e

    def _do_component_list(self):
        data = self.db_execsql('SELECT name, owner FROM component') 
        self.print_listing(['Name', 'Owner'], data)

    def _do_component_add(self, name, owner):
            data = self.db_execsql("INSERT INTO component VALUES('%s', '%s')"
                                   % (name, owner))

    def _do_component_rename(self, name, newname):
            data = self.db_execsql("UPDATE component SET name='%s' WHERE name='%s'"
                                   % (newname,name))

    def _do_component_remove(self, name):
            data = self.db_execsql("DELETE FROM component WHERE name='%s'"
                                   % (name))

    def _do_component_set_owner(self, name, owner):
            data = self.db_execsql("UPDATE component SET owner='%s' WHERE name='%s'"
                                   % (owner,name))


    ## Permission
    _help_permission = [('permission list', 'List permission rules'),
                       ('permission add <user> <action>', 'Add a new permission rule'),
                       ('permission remove <user> <action>', 'Remove permission rule')]

    def do_permission(self, line):
        arg = self.arg_tokenize(line)
        try:
            if arg[0]  == 'list':
                self._do_permission_list()
            elif arg[0] == 'add' and len(arg)==3:
                user = arg[1]
                action = arg[2]
                self._do_permission_add(user, action)
            elif arg[0] == 'remove'  and len(arg)==3:
                user = arg[1]
                action = arg[2]
                self._do_permission_remove(user, action)
            else:    
                self.do_help ('permission')
        except Exception, e:
            print 'Permission %s failed:' % arg[0], e

    def _do_permission_list(self):
        data = self.db_execsql('SELECT user, action FROM permission') 
        self.print_listing(['User', 'Action'], data)
        print
        print 'Available actions:'
        print ' LOG_VIEW, FILE_VIEW, CHANGESET_VIEW, BROWSER_VIEW, '
        print ' TICKET_VIEW, TICKET_CREATE, TICKET_MODIFY, TICKET_ADMIN, '
        print ' REPORT_VIEW, REPORT_CREATE, REPORT_MODIFY, REPORT_DELETE, REPORT_ADMIN, '
        print ' WIKI_VIEW, WIKI_CREATE, WIKI_MODIFY, WIKI_DELETE, WIKI_ADMIN, '
        print ' TIMELINE_VIEW and SEARCH_VIEW.'
        print ' CONFIG_VIEW, TRAC_ADMIN.'
        print
        
    def _do_permission_add(self, user, action):
        self.db_execsql("INSERT INTO permission VALUES('%s', '%s')" % (user, action))

    def _do_permission_remove(self, user, action):
        self.db_execsql("DELETE FROM permission WHERE user='%s' AND action='%s'" %
                        (user, action))

    ## Initdb
    _help_initdb = [('initdb', 'Create and initializes a new database')]

    def do_initdb(self, line):
        if self.db_check():
            print "Initdb for '%s' failed.\nDoes a database already exist?" % self.dbname
            return
        try:
            print
            print 'Trac need to known a few installation-specific settings'
            print 'when creating a new database.'
            print
            while 1:
                project_name = raw_input('Project name (will be displayed in the page title)> ')
                repository_dir = raw_input('Subversion repository> ')
                if os.access(os.path.join(repository_dir, 'README.txt'), os.F_OK) and \
                   os.access(os.path.join(repository_dir, 'conf'), os.F_OK):
                    break
                print repository_dir, 'doesn\'t look like a subversion repository'
            while 1:
                dt = trac.siteconfig.__default_templates_dir__
                prompt = 'Trac templates directory [%s]> ' % dt
                templates_dir = raw_input(prompt) or dt
                if os.access(os.path.join(templates_dir, 'browser.cs'), os.F_OK) and \
                   os.access(os.path.join(templates_dir, 'ticket.cs'), os.F_OK):
                    break
                print templates_dir, 'doesn\'t look like a Trac templates directory'
        except KeyboardInterrupt:
            print 'initdb aborted'
            return
        try:
            cnx = sqlite.connect (self.dbname)
            cursor = cnx.cursor ()
            self.initdb_create_tables(cursor)
            self.initdb_insert_default_data (cursor)
            cursor.execute('UPDATE config SET value=%s WHERE section=%s AND name=%s',
                           project_name, 'project', 'name')
            cursor.execute('UPDATE config SET value=%s WHERE name=%s',
                           repository_dir, 'repository_dir')
            cursor.execute('UPDATE config SET value=%s WHERE name=%s',
                           templates_dir, 'templates_dir')
            
            # Add a few default wiki pages
            pages = os.listdir(trac.siteconfig.__default_wiki_dir__)
            for page in pages:
                print 'Importing page', page
                filename = os.path.join(trac.siteconfig.__default_wiki_dir__,
                                        page)
                self._do_wiki_import(filename, page, cursor)
            cnx.commit()
            
        except Exception, e:
            print 'Failed to initialize database.', e
            cnx.rollback()

    def initdb_create_tables (self, cursor):
            cursor.execute (self.db_schema)

    def initdb_insert_default_data (self, cursor):
        def prep_value(v):
            if v == None:
                return 'NULL'
            else:
                return '"%s"' % v

        for t in xrange(0, len(self.db_data)):
            table = self.db_data[t][0]
            cols = ','.join(self.db_data[t][1])
            for row in self.db_data[t][2]:
                values = ','.join(map(prep_value, row))
                sql = "INSERT INTO %s (%s) VALUES(%s);" % (table, cols, values)
                cursor.execute(sql)


    ## Wiki
    _help_wiki = [('wiki list', 'List wiki pages'),
                  ('wiki export <page> [file]',
                   'Export wiki page to file or stdout'),
                  ('wiki import <page> [file]',
                   'Import wiki page from file or stdin')]

    def complete_wiki (self, text, line, begidx, endidx):
        argv = self.arg_tokenize(line)
        argc = len(argv)
        if line[-1] == ' ': # Space starts new argument
            argc += 1
        if begidx > 11:
            if line.startswith('wiki export'):
                if argc==3:
                    comp = self.get_wiki_list()
                elif argc==4:
                    comp = self.get_dir_list(argv[-1])
            else:
                if argc==3:
                    comp = self.get_dir_list(argv[-1])
                elif argc==4:
                    comp = self.get_wiki_list()
        else:
            comp = ['list','import','export']
        return self.word_complete(text, comp)

    def do_wiki(self, line):
        arg = self.arg_tokenize(line)
        try:
            if arg[0]  == 'list':
                self._do_wiki_list()
            elif arg[0] == 'import' and len(arg) == 3:
                title = arg[1]
                file = arg[2]
                self._do_wiki_import(file, title)
            elif arg[0] == 'export'  and len(arg) in [2,3]:
                page = arg[1]
                file = (len(arg) == 3 and arg[2]) or None
                self._do_wiki_export(page, file)
            else:    
                self.do_help ('wiki')
        except Exception, e:
            print 'Wiki %s failed:' % arg[0], e

    def _do_wiki_list(self):
        data = self.db_execsql('SELECT name,max(version),time'
                               ' FROM wiki GROUP BY name ORDER BY name')
        ldata = [(d[0], d[1], time.ctime(d[2])) for d in data]
        self.print_listing(['Title', 'Edits', 'Modified'], ldata)

    def _do_wiki_import(self, filename, title, cursor=None):
        f = file(filename,'r')
        data=f.read()
        data = data.replace("'", "''") # Escape ' for safe SQL
        f.close()
        sql = ("INSERT INTO wiki('version','name','time','author','ipnr','text') "
               " SELECT 1+ifnull(max(version),0),'%(title)s','%(time)s','%(author)s',"
               "   '%(ipnr)s','%(text)s' FROM wiki WHERE name='%(title)s'" 
               % {'title':title,
                  'time':int(time.time()),
                  'author':'trac',
                  'ipnr':'127.0.0.1',
                  'locked':'0',
                  'text':data})
        self.db_execsql(sql, cursor)

#        sql = "INSERT INTO wiki('version','name','time','author',
#        select max(version) from wiki where name="HejsanHoppsan";

    def _do_wiki_export(self, page, filename):
        data=self.db_execsql("SELECT text FROM wiki "
                             " WHERE name='%s'"
                             " ORDER BY version DESC LIMIT 1" % page)
        text = data[0][0]
        if not filename:
            print text
        else:
            if os.path.isfile(filename):
                raise Exception("File '%s' exists" % filename)
            f = file (filename,'w')
            f.write(text)
            f.close()


    ## (Ticket) Priority
    _help_priority = [('priority list', 'Show possible ticket priorities'),
                       ('priority add <value>', 'Add a priority value option'),
                       ('priority change <value> <newvalue>',
                        'Change a priority value'),
                       ('priority remove <value>', 'Remove priority value')]

    def complete_priority (self, text, line, begidx, endidx):
        if begidx == 16:
            comp = self.get_enum_list ('priority')
        elif begidx < 15:
            comp = ['list','add','change','remove']
        return self.word_complete(text, comp)

    def do_priority(self, line):
        self._do_enum('priority', line)

    ## (Ticket) Severity
    _help_severity = [('severity list', 'Show possible ticket priorities'),
                       ('severity add <value>', 'Add a severity value option'),
                       ('severity change <value> <newvalue>',
                        'Change a severity value'),
                       ('severity remove <value>', 'Remove severity value')]

    def complete_severity (self, text, line, begidx, endidx):
        if begidx == 16:
            comp = self.get_enum_list ('severity')
        elif begidx < 15:
            comp = ['list','add','change','remove']
        return self.word_complete(text, comp)

    def do_severity(self, line):
        self._do_enum('severity', line)

    # Priority and Severity share the same datastructure and methods:
    
    def _do_enum(self, type, line):
        arg = self.arg_tokenize(line)
        try:
            if arg[0]  == 'list':
                self._do_enum_list(type)
            elif arg[0] == 'add' and len(arg)==2:
                name = arg[1]
                self._do_enum_add(type, name)
            elif arg[0] == 'change'  and len(arg)==3:
                name = arg[1]
                newname = arg[2]
                self._do_enum_change(type, name, newname)
            elif arg[0] == 'remove'  and len(arg)==2:
                name = arg[1]
                self._do_enum_remove(type, name)
            else:    
                self.do_help (type)
        except Exception, e:
            print 'Priority %s failed:' % arg[0], e

    def _do_enum_list(self, type):
        data = self.db_execsql("SELECT name FROM enum WHERE type='%s'"
                               % type)
        self.print_listing(['Possible Values'], data)

    def _do_enum_add(self, type, name):
        sql = ("INSERT INTO enum('value','type','name') "
               " SELECT 1+ifnull(max(value),0),'%(type)s','%(name)s'"
               "   FROM enum WHERE type='%(type)s'" 
               % {'type':type,
                  'name':name})
        data = self.db_execsql(sql)

    def _do_enum_change(self, type, name, newname):
        d = {'name':name, 'newname':newname, 'type':type}
        data = self.db_execsql("SELECT name FROM enum" 
                               " WHERE type='%(type)s' AND name='%(name)s'" % d)
        if not data:
            raise Exception, "No such value '%s'" % name
        data = self.db_execsql("UPDATE enum SET name='%(newname)s'" 
                               " WHERE type='%(type)s' AND name='%(name)s'" % d)

    def _do_enum_remove(self, type, name):
        data = self.db_execsql("SELECT name FROM enum" 
                               " WHERE type='%s' AND name='%s'" % (type, name))
        if not data:
            raise Exception, "No such value '%s'" % name
        data = self.db_execsql("DELETE FROM enum WHERE type='%s' AND name='%s'"
                               % (type, name))


    ## Milestone
    _help_milestone = [('milestone list', 'Show milestones'),
                       ('milestone add <name> [time]', 'Add milestone'),
                       ('milestone rename <name> <newname>',
                        'Rename milestone'),
                       ('milestone time <name> <time>', 'Set milestone date/time'),
                       ('milestone remove <name>', 'Remove milestone')]

    def complete_milestone (self, text, line, begidx, endidx):

        if begidx in [15,17]:
            comp = self.get_milestone_list ()
        elif begidx < 15:
            comp = ['list','add','rename','time','remove']
        return self.word_complete(text, comp)

    def do_milestone(self, line):
        self._do_mile_ver('milestone', line)


    ## Version
    _help_version = [('version list', 'Show versions'),
                       ('version add <name> [time]', 'Add version'),
                       ('version rename <name> <newname>',
                        'Rename version'),
                       ('version time <name> <time>', 'Set version date/time'),
                       ('version remove <name>', 'Remove version')]

    def complete_version (self, text, line, begidx, endidx):

        if begidx in [15,17]:
            comp = self.get_version_list ()
        elif begidx < 15:
            comp = ['list','add','rename','time','remove']
        return self.word_complete(text, comp)

    def do_version(self, line):
        self._do_mile_ver('version', line)

        
    # Milestone and Version are identical,  methods

    def _do_mile_ver(self, type, line):
        arg = self.arg_tokenize(line)
        try:
            if arg[0]  == 'list':
                self._do_mile_ver_list(type)
            elif arg[0] == 'add' and len(arg) in [2,3]:
                name = arg[1]
                time = len(arg) == 3 and arg[2]
                self._do_mile_ver_add(type, name, time)
            elif arg[0] == 'rename'  and len(arg)==3:
                name = arg[1]
                newname = arg[2]
                self._do_mile_ver_rename(type, name, newname)
            elif arg[0] == 'time'  and len(arg)==3:
                name = arg[1]
                time = arg[2]
                self._do_mile_ver_time(type, name, time)
            elif arg[0] == 'remove'  and len(arg)==2:
                name = arg[1]
                self._do_mile_ver_remove(type, name)
            else:    
                self.do_help (type)
        except Exception, e:
            print 'Command %s failed:' % arg[0], e

    def _do_mile_ver_list(self, type):
        data = self.db_execsql("SELECT name,time FROM %s ORDER BY time,name"
                               % type)
        self.print_listing(['Name', 'Time'], data)

    def _do_mile_ver_rename(self, type, name, newname):
        d = {'name':name, 'newname':newname, 'type':type}
        data = self.db_execsql("SELECT name FROM %(type)s" 
                               " WHERE name='%(name)s'" % d)
        if not data:
            raise Exception, "No such %s '%s'" % (type, name)
        data = self.db_execsql("UPDATE %(type)s SET name='%(newname)s'" 
                               " WHERE name='%(name)s'" % d)

    def _do_mile_ver_add(self, type, name, time):
        sql = ("INSERT INTO %(type)s('name','time') "
               " VALUES('%(name)s', '%(time)s')" 
               % {'type':type, 'name':name, 'time':time})
        data = self.db_execsql(sql)
        
    def _do_mile_ver_remove(self, type, name):
        d = {'name':name, 'type':type}
        data = self.db_execsql("SELECT name FROM %(type)s" 
                               " WHERE name='%(name)s'" % d)
        if not data:
            raise Exception, "No such %s '%s'" % (type, name)
        data = self.db_execsql("DELETE FROM %(type)s" 
                               " WHERE name='%(name)s'" % d)



## ---------------------------------------------------------------------------

##
## Main
##

def main():
    tracadm = TracAdmin()
    if len (sys.argv) > 1:
        if sys.argv[1] in ['-h','--help','help']:
            tracadm.docmd ("help")
        elif sys.argv[1] in ['-v','--version','about']:
            tracadm.docmd ("about")
        else:
            tracadm.db_set(sys.argv[1])
            if len (sys.argv) > 2:
                s_args = ' '.join(["'%s'" % c for c in sys.argv[3:]])
                command = sys.argv[2] + ' ' +s_args
                tracadm.docmd (command)
            else:
                while 1:
                    tracadm.run()
    else:
        tracadm.docmd ("help")




if __name__ == '__main__':
    main()