ioquatix/time-zone

# Copyright, 2018, by Samuel G. D. Williams. <http://www.codeotaku.com>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

require_relative 'zone/version'

require_relative 'zone/locking'

require 'time'

class Time
    alias minute min
    alias second sec
    
    module Zone
        def self.new(year, month, day, hour, minute, second, zone)
            with(zone) do
                return Time.new(year, month, day, hour, minute, second).localtime
            end
        end
        
        def self.now(zone)
            with(zone) do
                # Time instances are lazy initialized, so we need to force it to pick up the current TZ by invoking #localtime
                return Time.new.localtime
            end
        end
        
        def self.convert(time, zone)
            with(zone) do
                return Time.new(time.year, time.month, time.day, time.hour, time.minute, time.second, time.utc_offset).localtime
            end
        end
        
        def self.parse(string, zone = "UTC", *args)
            string = string.dup
            
            if string.sub!(/\s([a-zA-Z][\w]*(\/[\w]+)?)$/, "")
                zone = $1
            end
            
            with(zone) do
                return Time.parse(string, *args).localtime, zone
            end
        end
    end
end