#! /usr/bin/ruby

require 'uri'
require 'net/http'
require 'optparse'

#++
#
# :title: webserver dispatch example script
#
# Author:: jsn (dmitry kim) <dmitry dot kim at gmail dot org>
# Copyright:: (C) 2007 dmitry kim
# License:: in public domain
# Modified by:: Giuseppe "Oblomov" Bilotta <giuseppe dot bilotta at gmail dot com>
# Copyright:: (C) 2020 Giuseppe Bilotta

user = nil
pw = nil
dst = nil
function = 'say'
uri = 'http://localhost:7268/dispatch'

opts = OptionParser.new
opts.on('-u', '--user <user>', "remote user (mandatory)") { |v| user = v }
opts.on('-p', '--password <pw>', "remote user password (mandatory)") { |v| pw = v }
opts.on('-d', '--destination <user/#channel>', "destination of the action (mandatory)") { |v| dst = v }
opts.on('-f', '--function <func>', "function to trigger (e.g. say, notify), default: #{function}") { |v| function = v }
opts.on('-r', '--uri <drb uri>', "rbot url (#{uri})") { |v| uri = v }
opts.on('-h', '--help', "this message") { |v| pw = nil } # sorry!
opts.on('-a', '--about', "what it's all about.") { |v|
    puts <<EOF
This is just a proof-of-concept example for the rbot webserver dispatch feature.
This program reads lines of text from the standard input and sends them to a specified irc
channel or user via rbot. Make sure you enable the webservice dispatch feature
before use.

The necessary setup is:
    1) # create a new rbot user ("rmuser", in this example) with a password
       # ("rmpw", in this example). in an open query to rbot:

       <you> user create rmuser rmpw
       <rbot> created botuser remote

    2) # add a permission to say for your newly created remote user:

       <you> allow rmuser to do say #channel message
       <rbot> okies!

    3) # run the #{$0} and type something. the message should
       # show up on your channel / arrive as an irc private message.
       
       [you@yourhost ~]$ ./bin/rbot-remote -u rmuser -p rmpw -d '#your-channel'
       hello, world!
       <Ctrl-D>
       [you@yourhost ~]$
EOF
    exit 0
}
opts.parse!

if !pw || !user || !dst
    puts opts.to_s
    exit 0
end

uri = URI(uri)
uri.user = user
uri.password = pw

loop {
    s = gets or break
    s.chomp!
    resp = Net::HTTP.post_form(uri, 'command' => [function, dst, s].join(' '))
    puts [resp.code, resp.message, resp.body].join("\t")
}