summaryrefslogtreecommitdiff
path: root/data/rbot/plugins/time.rb
blob: 4838a469586cb496bfdf345d7e0be879a3c3ac2d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
#-- vim:sw=2:et
#++
#
# :title: Time Zone Plugin for rbot
#
# Author:: Ian Monroe <ian@monroe.nu>
# Author:: Raine Virta <raine.virta@gmail.com>
# Copyright:: (C) 2006 Ian Monroe
# Copyright:: (C) 2010 Raine Virta
# License:: MIT license

require 'tzinfo'

class TimePlugin < Plugin
  def help(plugin, topic="")
    case topic
    when "set"
      _("usage: time set <Continent>/<City> -- setting your location allows the bot to calibrate time replies into your time zone, and other people to figure out what time it is for you")
    else
      _("usage: time <timestamp|time zone|nick> -- %{b}timestamp%{b}: get info about a specific time, relative to your own time zone | %{b}time zone%{b}: get local time of a certain location, <time zone> can be '<Continent>/<City>' or a two character country code | %{b}nick%{b}: get local time of another person, given they have set their location | see `%{prefix}help time set` on how to set your location") % {
        :b => Bold,
        :prefix => @bot.config['core.address_prefix'].first
      }
    end
  end

  def initialize
    super
    # this plugin only wants to store strings
    class << @registry
      def store(val)
        val
      end
      def restore(val)
        val
      end
    end
  end

  def getTime(m, zone )
    if zone.length == 2 then #country code
      zone.upcase!
      zone = 'GB' if zone == 'UK' #country doesn't know its own name
      begin
        nationZones = TZInfo::Country.get(zone).zone_identifiers
        if nationZones.size == 1 then
          zone = nationZones[0]
        else
          m.reply "#{zone} has the cities of #{nationZones.join( ', ' )}."
        end
      rescue TZInfo::InvalidCountryCode
        m.reply "#{zone} is not a valid country code."
      end
    end
    ['/', '_'].each { |sp|
        arr = Array.new
        zone.split(sp).each{ |s|
            s[0] = s[0,1].upcase
            s[1, s.length] = s[1, s.length].downcase if sp == '/'
            arr.push(s) }
            zone = arr.join( sp )
        }

    tz = TZInfo::Timezone.get( zone )
    "#{tz.friendly_identifier} - #{tz.now.strftime( '%a %b %d %H:%M' )} #{tz.current_period.abbreviation}"
  end

  def showTime(m, params)
    zone = params[:where].join('_')
    if params[:where].size > 0 then
      begin
        m.reply getTime( m,  zone )
      rescue TZInfo::InvalidTimezoneIdentifier
        if @registry.has_key?( zone ) then
          zone =  @registry[ zone ]
          m.reply getTime( m,  zone )
        else
          parse(m, params)
        end
      end
    else
      if @registry.has_key?( m.sourcenick) then
        zone = @registry[ m.sourcenick ]
        m.reply "#{m.sourcenick}: #{getTime( m,  zone )}"
      else
        m.reply "#{m.sourcenick}: use time set <Continent>/<City> to set your time zone."
      end
    end
  end

  def setUserZone( m, params )
    if params[:where].size > 0 then
      s = setZone( m, m.sourcenick, params[:where].join('_') )
    else
      m.reply "Requires <Continent>/<City> or country code"
    end
  end

  def resetUserZone( m, params )
    s = resetZone( m, m.sourcenick)
  end

  def setAdminZone( m, params )
    if params[:who] and params[:where].size > 0 then
      s = setZone( m, params[:who], params[:where].join('_') )
    else
      m.reply "Requires a nick and the <Continent>/<City> or country code"
    end
  end

  def resetAdminZone( m, params )
    if params[:who]
      s = resetZone( m, params[:who])
    else
      m.reply "Requires a nick"
    end
  end

  def setZone( m, user, zone )
    begin
      getTime( m,  zone )
    rescue TZInfo::InvalidTimezoneIdentifier
      m.reply "#{zone} is an invalid time zone. Format is <Continent>/<City> or a two character country code."
      return
    end
    @registry[ user ] = zone
    m.reply "Ok, I'll remember that #{user} is on the #{zone} time zone"
  end

  def resetZone( m, user )
    @registry.delete(user)
    m.reply "Ok, I've forgotten #{user}'s time zone"
  end

  def parse(m, params)
    require 'time'
    str = params[:where].to_s
    now = Time.now

    begin
      time = begin
        if zone = @registry[m.sourcenick]
          on_timezone(zone) {
            Time.parse str
          }
        else
          Time.parse str
        end
      rescue ArgumentError => e
        # Handle 28/9/1978, which is a valid date representation at least in Italy
        if e.message == 'argument out of range'
          str.tr!('/', '-')
          Time.parse str
        else
          raise
        end
      end

      offset = (time - now).abs
      raise if offset < 0.1
    rescue => e
      if str.match(/^\d+$/)
        time = Time.at(str.to_i)
      else
        m.reply _("unintelligible time")
        return
      end
    end

    if zone = @registry[m.sourcenick]
      time = time.convert_zone(zone)
    end

    m.reply _("%{time} %{w} %{str}") % {
      :time => time.strftime(_("%a, %d %b %Y %H:%M:%S %Z %z")),
      :str  => Utils.timeago(time),
      :w    => time >= now ? _("is") : _("was")
    }
  end

  def on_timezone(to_zone)
    original_zone = ENV["TZ"]
    ENV["TZ"] = to_zone
    ret = yield
    ENV["TZ"] = original_zone
    return ret
  end
end

class ::Time
  def convert_zone(to_zone)
    original_zone = ENV["TZ"]
    utc_time = dup.gmtime
    ENV["TZ"] = to_zone
    to_zone_time = utc_time.localtime
    ENV["TZ"] = original_zone
    return to_zone_time
  end
end

plugin = TimePlugin.new

plugin.default_auth('admin', false)

plugin.map 'time set [time][zone] [to] *where', :action=> 'setUserZone', :defaults => {:where => false}
plugin.map 'time reset [time][zone]', :action=> 'resetUserZone'
plugin.map 'time admin set [time][zone] [for] :who [to] *where', :action=> 'setAdminZone', :defaults => {:who => false, :where => false}
plugin.map 'time admin reset [time][zone] [for] :who', :action=> 'resetAdminZone', :defaults => {:who => false}
plugin.map 'time *where', :action => 'showTime', :defaults => {:where => false}