var _ = require('underscore')._,
    uuid = require('node-uuid');

var commands = function(dbot) {
    var commands = {
        /*** Kick Management ***/
        '~quiet': function(event) {
          var server = event.server,
              quieter = event.rUser,
              duration = event.input[1],
              channel = (event.input[2] || event.channel.name).trim(),
              quietee = event.input[3].trim(),
              reason = event.input[4] || "N/A";

          this.api.quietUser(server, quieter, duration, channel, quietee, reason, function(response) {
            event.reply(response); 
          });
        },

        '~timeout': function(event) {
          var server = event.server,
              quieter = event.rUser,
              duration = this.config.timeoutTime,
              channel = event.channel.name,
              quietee = event.input[1],
              reason = event.input[2] || "N/A";

          reason += ' #timeout';

          dbot.api.users.resolveUser(server, quietee, function(err, user) {
            if(!err && user) {
              if(!_.has(this.recentTimeouts, user.id)) {
                this.recentTimeouts[user.id] = 0;
              }

              this.recentTimeouts[user.id] += 1;
              setTimeout(function() {
                this.recentTimeouts[user.id] -= 1;
                if(this.recentTimeouts[user.id] == 0) {
                  delete this.recentTimeouts[user.id];
                }
              }.bind(this), 3600000);

              if(this.recentTimeouts[user.id] == 3) {
                duration = null;
                reason += ' #permatimeout';
                dbot.say(event.server, dbot.config.servers[event.server].admin_channel, quietee + ' has been given three timeouts in the last hour, and so has been quieted indefinitely in '+channel+'. Please review.');
              }

              this.api.quietUser(server, quieter, duration, channel, quietee, reason, function(response) {
                event.reply(response);
              });
            }
          }.bind(this));
        },

        '~unquiet': function(event) {
            var server = event.server,
                quieter = event.user,
                channel = (event.input[1] || event.channel.name).trim(),
                quietee = event.input[2].trim();

            if(_.has(this.hosts[server], quietee)) {
                if(_.include(this.config.quietBans, channel)) {
                    this.api.unban(server, this.hosts[server][quietee], channel);
                } else {
                    this.api.unquiet(server, this.hosts[server][quietee], channel);
                }
                event.reply(dbot.t('unquieted', { 'quietee': quietee }));
                dbot.api.report.notify('unquiet', server, event.rUser, channel,
                dbot.t('unquiet_notify', {
                    'unquieter': quieter,
                    'quietee': quietee
                }), false, quietee);
            }
        },

        '~ckick': function(event) {
            var server = event.server,
                kicker = event.user,
                kickee = event.input[2],
                channel = event.input[1],
                reason = event.input[3];

            if(_.isUndefined(channel)) {
                channel = event.channel.name;
            }
            channel = channel.trim();

            this.api.kick(server, kickee, channel, reason + ' (requested by ' + kicker + ')'); 

            dbot.api.report.notify('kick', server, event.rUser, channel, dbot.t('ckicked', {
                'kicker': kicker,
                'kickee': kickee,
                'reason': reason
            }), false, kickee);
        },

        // Kick and ban from all channels on the network.
        '~nban': function(event) {
            if(!event.input) return;

            var server = event.server,
                banner = event.user,
                timeout = event.input[1],
                banee = event.input[2],
                reason = event.input[3],
                adminChannel = dbot.config.servers[server].admin_channel,
                channels = _.keys(dbot.instance.connections[server].channels),
                network = event.server;

            if(this.config.network_name[event.server]) {
                network = this.config.network_name[event.server];
            }

            dbot.api.nickserv.getUserHost(event.server, banee, function(host) {
                // Add host record entry
                if(host) {
                  if((reason.match('#line') || reason.match('#specialk') || reason.match('#kline')) && _.include(dbot.access.moderator(), event.rUser.primaryNick)) {
                    var t = ' !P ';
                    if(timeout) {
                      t = ' !T ' + (timeout * 60);  
                    }
                    dbot.say(event.server, 'operserv', 'akill add '+banee + t + banee + ' banned by ' + banner + ': ' + reason);
                  }

                    // Ban from current channel first
                    this.api.ban(server, host, event.channel);
                    this.api.kick(server, banee, event.channel, reason + 
                        ' (network-wide ban)');
                    channels = _.without(channels, event.channel);
                    if(!_.isUndefined(adminChannel)) {
                        channels = _.without(channels, adminChannel);
                    } else {
                        adminChannel = event.channel.name;
                    }

                  // Ban the user from all channels
                  var i = 0;
                  var banChannel = function(channels) {
                      if(i >= channels.length) return;
                      var channel = channels[i];
                      this.api.ban(server, host, channel);
                      this.api.kick(server, banee, channel, reason + 
                          ' (network-wide ban)');
                      i++; banChannel(channels);
                  }.bind(this);
                  banChannel(channels);

                    this.hosts[event.server][banee] = host;

                    // Create notify string
                    if(!_.isUndefined(timeout)) {
                        timeout = timeout.trim();

                        var msTimeout = new Date(new Date().getTime() + (parseFloat(timeout) * 3600000));
                        if(_.has(dbot.modules, 'remind')) {
                          msTimeout = dbot.api.remind.parseTime(timeout); 
                          if(!msTimeout) {
                            return event.reply('Invalid time. Remember you must give e.g. 5m now.');
                          }
                          timeout = timeout.replace(/([\d]+)d/, '$1 days').replace(/([\d]+)h/, '$1 hours ').replace(/([\d]+)m/, '$1 minutes ').replace(/([\d]+)s/, '$1 seconds').trim();
                        } else {
                          timeout += ' hours';
                        }

                        if(!_.has(this.tempBans, event.server)) this.tempBans[event.server] = {};
                        this.tempBans[event.server][banee] = msTimeout;
                        this.internalAPI.addTempBan(event.server, banee, msTimeout);

                        var notifyString = dbot.t('tbanned', {
                            'network': network,
                            'banner': banner,
                            'banee': banee,
                            'hours': timeout,
                            'reason': reason
                        });
                    } else {
                        var notifyString = dbot.t('nbanned', {
                            'network': network,
                            'banner': banner,
                            'banee': banee,
                            'reason': reason
                        });
                    }

                    // Add qutoe category documenting ban
                    if(this.config.document_bans) {
                        var id = uuid.v4();
                        var banRecord = {
                            'id': id,
                            'time': new Date().getTime(),
                            'server': server,
                            'banee': banee,
                            'banner': banner,
                            'host': host,
                            'reason': reason
                        };
                        this.db.save('nbans', id, banRecord, function() {});
                    }

                    // Notify moderators, banee
                    if(!_.isUndefined(adminChannel)) {
                        channels = _.without(channels, adminChannel);
                    } else {
                        adminChannel = event.channel.name;
                    }

                    dbot.api.report.notify('ban', server, event.rUser, adminChannel, notifyString, false, banee);
                    dbot.say(event.server, adminChannel, notifyString);

                    if(!_.isUndefined(timeout)) {
                        dbot.say(event.server, banee, dbot.t('tbanned_notify', {
                            'network': network,
                            'banner': banner,
                            'reason': reason,
                            'hours': timeout,
                            'admin_channel': adminChannel 
                        }));
                    } else {
                        dbot.say(event.server, banee, dbot.t('nbanned_notify', {
                            'network': network,
                            'banner': banner,
                            'reason': reason,
                            'hours': timeout,
                            'admin_channel': adminChannel 
                        }));
                    }
                    
                    // err
                    dbot.say(event.server, 'NickServ', 'FREEZE ' + banee + ' ON ' + reason);
                } else {
                    event.reply(dbot.t('no_user', { 'user': banee }));
                }
            }.bind(this));
        },

        '~nunban': function(event) {
            var unbanee = event.params[1],
                unbanner = event.rUser;

            this.api.networkUnban(event.server, unbanee, unbanner, function(err) {
                if(err) {
                    event.reply(dbot.t('nunban_error', { 'unbanee': unbanee })); 
                }
            });
        },

        /*** Kick Stats ***/

        // Give the number of times a given user has been kicked and has kicked
        // other people.
        '~kickcount': function(event) {
            var username = event.params[1];

            if(!_.has(dbot.db.kicks, username)) {
                var kicks = '0';
            } else {
                var kicks = dbot.db.kicks[username];
            }

            if(!_.has(dbot.db.kickers, username)) {
                var kicked = '0';
            } else {
                var kicked = dbot.db.kickers[username];
            }

            event.reply(dbot.t('user_kicks', {
                'user': username, 
                'kicks': kicks, 
                'kicked': kicked
            }));
        },

        // Output a list of the people who have been kicked the most and those
        // who have kicked other people the most.
        '~kickstats': function(event) {
            var orderedKickLeague = function(list, topWhat) {
                var kickArr = _.chain(list)
                    .pairs()
                    .sortBy(function(kick) { return kick[1] })
                    .reverse()
                    .first(10)
                    .value();

                var kickString = "Top " + topWhat + ": ";
                for(var i=0;i<kickArr.length;i++) {
                    kickString += kickArr[i][0] + " (" + kickArr[i][1] + "), ";
                }

                return kickString.slice(0, -2);
            };

            event.reply(orderedKickLeague(dbot.db.kicks, 'Kicked'));
            event.reply(orderedKickLeague(dbot.db.kickers, 'Kickers'));
        },

        '~votequiet': function(event) {
          var target = event.input[1],
              reason = event.input[2];

          if(_.has(event.channel.nicks, target)) {
            dbot.api.users.resolveUser(event.server, target, function(err, user) {
              if(!err && user) { 
                if(_.include(dbot.access.power_user(), user.primaryNick) || target == dbot.config.name) {
                  return event.reply('User is immune to votequiet.');
                }
                
                if(!_.has(this.voteQuiets, user.id)) {
                  this.voteQuiets[user.id] = { 'user': user.id, 'channel': event.channel, 'yes': [event.rUser.primaryNick], 'no': [] };
                  event.reply(event.user + ' has started a vote to quiet ' + target + ' for "' + reason + '." Type either "~voteyes ' + target + '" or "~voteno ' + target + '" in the next 40 seconds.');

                  setTimeout(function() {
                    var vq = this.voteQuiets[user.id];
                    vq.spent = true;
                    if(vq.yes.length >= 3 && vq.no.length < 2) {
                      event.reply('Attempt to quiet ' + target + ' succeeded. Count: Yes (' + vq.yes.length + '). No (' + vq.no.length + ').');

                      this.api.quietUser(event.server, event.rUser, '10m', event.channel, target, reason + '[votequiet]', function(response) {
                        event.reply(response); 
                      });
                    } else {
                      event.reply('Attempt to quiet ' + target + ' failed. Count: Yes (' + vq.yes.length + '). No (' + vq.no.length + ').');
                    }

                    var nString = 'A votequiet was attempted on '  + target + ' in ' + event.channel + '. It was initiated by ' + event.rUser.primaryNick + '. ' + 
                       vq.yes.join(', ') + ' voted yes (' + vq.yes.length + '). ';
                       if(vq.no.length > 0) {
                         nString += vq.no.join(', ') + ' voted no (' + vq.no.length + ').'
                        }

                    dbot.api.report.notify('votequiet', event.server, event.rUser, event.channel, nString, false, target);

                    setTimeout(function() {
                      delete this.voteQuiets[user.id];
                    }.bind(this), 600000);
                  }.bind(this), 40000);
                } else {
                  if(this.voteQuiets[user.id].spent) {
                    event.reply('A votequiet attempt has already been made on this user in the last 10 minutes.');
                  } else {
                    event.reply('There is already a votequiet attempt active for this user.');
                  }
                }
              } else {
                event.reply('Target does not seem to be in the channel.');
              }
            }.bind(this));
          } else {
            event.reply('Target does not seem to be in the channel.');
          }
        },

        '~voteyes': function(event) {
          var target = event.params[1];

          dbot.api.users.resolveUser(event.server, target, function(err, user) {
            if(!err && user) {
              if(user.id == event.rUser.id) {
                return event.reply('You cannot vote on your own silencing. Be good.');
              }
              if(_.has(this.voteQuiets, user.id) && !this.voteQuiets[user.id].spent) {
                var vq = this.voteQuiets[user.id];
                if(event.channel != vq.channel) {
                  return event.reply('Vote must be in ' + vq.channel);
                }
                if(!_.include(vq.yes, event.rUser.primaryNick) && !_.include(vq.no, event.rUser.primaryNick)) {
                  vq.yes.push(event.rUser.primaryNick);
                  event.reply('Voted yes on votequiet for ' + target + '. New count: Yes (' + vq.yes.length + '). No (' + vq.no.length + ').');
                } else {
                  event.reply('You have already voted.');
                }
              } else {
                event.reply('There is no active votequiet for this user. You can start one by typing "~votequiet ' + target + ' [reason].');
              }
            } else {
              event.reply('No idea who that is m8');
            }
          }.bind(this));
        },

        '~voteno': function(event) {
          var target = event.params[1];

          dbot.api.users.resolveUser(event.server, target, function(err, user) {
            if(!err && user) {
              if(user.id == event.rUser.id) {
                return event.reply('You cannot vote on your own silencing. Be good.');
              }
              if(_.has(this.voteQuiets, user.id) && !this.voteQuiets[user.id].spent) {
                var vq = this.voteQuiets[user.id];
                if(event.channel != vq.channel) {
                  return event.reply('Vote must be in ' + vq.channel);
                }
                if(!_.include(vq.yes, event.rUser.primaryNick) && !_.include(vq.no, event.rUser.primaryNick)) {
                  vq.no.push(event.rUser.primaryNick);
                  event.reply('Voted no on votequiet for ' + target + '. New count: Yes (' + vq.yes.length + '). No (' + vq.no.length + ').');
                } else {
                  event.reply('You have already voted.');
                }
              } else {
                event.reply('There is no active votequiet for this user. You can start one by typing "~votequiet ' + target + ' [reason].');
              }
            } else {
              event.reply('No idea who that is m8');
            }
          }.bind(this));
        }
    };

    _.each(commands, function(command) {
        command.access = 'moderator'; 
    });

    commands['~kickcount'].access = 'regular';
    commands['~kickstats'].access = 'regular';
    commands['~votequiet'].access = 'regular';
    commands['~voteyes'].access = 'regular';
    commands['~voteno'].access = 'regular';
    commands['~quiet'].access = 'voice';
    commands['~timeout'].access = 'voice';
    commands['~unquiet'].access = 'voice';
    commands['~nban'].access = 'power_user';
    commands['~nunban'].access = 'power_user';

    commands['~ckick'].regex = /^ckick (#[^ ]+ )?([^ ]+) ?(.*)?$/;
    commands['~nban'].regex = /^nban (\d[\d\.dhmsy]+)? ?([^ ]+) (.+)$/;
    commands['~quiet'].regex = /^quiet (\d[\d\.hms]+)? ?(#[^ ]+ )?([^ ]+) ?(.*)?$/;
    commands['~timeout'].regex = /^timeout ([^ ]+) ?(.*)?$/;
    commands['~unquiet'].regex = /^unquiet (#[^ ]+ )?([^ ]+) ?$/;
    commands['~votequiet'].regex = [/^votequiet ([^ ]+) (.+)$/, 3];

    return commands;
};

exports.fetch = function(dbot) {
    return commands(dbot);
};