# -*- coding: utf-8 -*-

"""
The mailjam project - cli.py

This file is released under the BSD license, see LICENSE for
more information.

Francisco de Borja Lopez Rio - <borja@codigo23.net>
Soluciones Informaticas Codigo23 S.L.U. - http://codigo23.net
"""

import os, cmd, xmlrpclib
from mailjam.config import CLIClientConfig

class CLIClient(cmd.Cmd):    

    def __init__(self, configfile=None, *args, **kwargs):
        cmd.Cmd.__init__(self)
        cli_config = CLIClientConfig(configfile=configfile)
        cli_config.load()
        self.config = cli_config.config
        self.rpc = xmlrpclib.ServerProxy(self.config['server']['uri'])
        self.prompt = "mailjam-cli > "
        self.intro = "Welcome to Mailjam's CLI client - type help for a list of commands"
        self._history = []
        
    def do_history(self, line):
        """
        history
        Show a list of recently executed commands

        Alias: h
        """
        if not self._history:
            print 'No history data available'
        else:
            for i in self._history:
                print self._history.index(i), ' - ', i
                
    def do_h(self, line):
        """
        h
        Alias for the history command. To learn more type:

        help history
        """
        self.do_history(line)
    
    def do_add_mailing_list(self, line):
        """
        add_mailing_list [name] address
        Add a new mailing list to the remote mailjam server. You have to
        provide a valid email address for the mailing list to be added. If no
        name is provided, the address itself will be used.

        Alias: aml
        """
        if not line:
            print 'usage: add_mailing_list [name] address'
        else:
            params = line.split(' ')
            address = params.pop()
            if not params:
                name = address
            else:
                name = ' '.join(params)
            info = {'name': name, 'address': address, 'members': {},
                    'configfile': self.config['server']['configfile']}
            result = self.rpc.lists.add(info)
            print result

    def do_aml(self, line):
        """
        aml [name] address
        Alias for the add_mailing_list command. To learn more type:

        help add_mailing_list
        """
        self.do_add_mailing_list(line)

    def do_list_mailing_lists(self, line):
        """
        list_mailing_lists [text]
        List the mailing lists available in the remote mailjam server.
        If text is provided, only mailing lists whose address contains such
        text will be shown. Otherwise all the available email addresses are
        listed.

        Alias: lml
        """
        addresses = self.rpc.lists.addresses()        
        if not line:
            for address in addresses:
                print address            
        else:
            for address in addresses:
                if line in address:
                    print address

    def do_lml(self, line):
        """
        lml [text]
        Alias for the list_mailing_lists command. To learn more type:

        help list_mailing_lists
        """
        self.do_list_mailing_lists(line)

    def do_show_mailing_list(self, line):
        """
        show_mailing_list address
        Show detailed information of the mailing list represented by address.

        Alias: sml
        """
        if not line:
            print 'usage: show_mailing_list address'
        else:
            result = self.rpc.lists.info(line)
            if isinstance(result, dict):
                print 'Mailing list information:'
                print ' - name:', result['name']
                print ' - address:', result['address']
                print ' - members:', result['members']
            else:
                print result

    def do_sml(self, line):
        """
        sml address
        Alias for the show_mailing_list command. To learn more type:

        help show_mailing_list
        """
        self.do_show_mailing_list(line)

    def do_add_mailing_list_member(self, line):
        """
        add_mailing_list_member member_address list_address
        Add a new member to a given mailing list. You have to provide valid
        email addresses for both the member and the list. The mailing list
        must be handled by the remote mailjam server for this operation to
        work.

        Alias: amlm
        """
        usage = 'usage: add_mailing_list_member member_address list_address'
        if not line:
            print usage
        else:
            params = line.split(' ')
            list_addr = params.pop()
            if params:
                member_addr = params.pop()
                result = self.rpc.members.add(member_addr, list_addr)
                print result
            else:
                # we need the member adddress too
                print usage

    def do_amlm(self, line):
        """
        amlm member_address list_address
        Alias for the add_mailing_list_member command. To learn more type:

        help add_mailing_list_member
        """
        self.do_add_mailing_list_member(line)
        
    def do_list_mailing_list_members(self, line):
        """
        list_mailing_list_members address
        List all the members from the given list.

        Alias: lmlm        
        """
        if not line:
            print 'usage: list_mailing_list_members address'
        else:
            members = self.rpc.members.list(line)
            if not members:
                print 'No members found in list', line
            else:
                print len(members), 'member(s) found in list', line
                for m in members:
                    print m

    def do_lmlm(self, line):
        """
        lmlm address
        Alias for the list_mailing_list_members command. To learn more type:

        help list_mailing_lists
        """
        self.do_list_mailing_list_members(line)
        
    def do_EOF(self, line):
        return True

    def precmd(self, line):
        # save the commands to the history, if it is enabled in the config file
        if self.config['history']['enabled']:            
            self._history.append(line)
        return line
    
    def postloop(self):
        # save history to a file, if it is enabled in the config file.
        if self.config['history']['enabled']:
            history_file_name = self.config['history']['path']
            if '~' in history_file_name:
                # we have to replace that with the proper home path
                # FIXME: we should call some "sanitize" function here, to
                # get rid of dangerous paths in the file name
                home = os.path.expanduser("~")
                history_file_name = history_file_name.replace('~', home)
            if not os.path.exists(history_file_name):
                try:
                    os.makedirs(os.path.dirname(history_file_name))
                except OSError, e:
                    # If the dir already exists do not complain, if it is
                    # any other error, raise the exception
                    if e.errno != errno.EEXIST:
                        raise
            history_file = open(history_file_name, 'a')
            for i in self._history:
                if 'EOF' not in i:
                    history_file.write(i+'\n')
            history_file.close()
        print 'Bye!'

    def emptyline(self):
        pass