From 4088e0a6481546419d8a8714dea1a94ae4e84a8b Mon Sep 17 00:00:00 2001
From: multiple creatures <dev@multiple-creature.party>
Date: Fri, 19 Apr 2019 02:59:15 -0500
Subject: [PATCH] Add `i:am` bangtag to allow plural systems sharing an account
 to identify who is roaring.

---
 app/lib/bangtags.rb  | 41 +++++++++++++++++++++++++++++++++++++++--
 app/models/status.rb |  2 +-
 2 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/app/lib/bangtags.rb b/app/lib/bangtags.rb
index e8681073d..1ef818e8d 100644
--- a/app/lib/bangtags.rb
+++ b/app/lib/bangtags.rb
@@ -26,9 +26,9 @@ class Bangtags
     # list of transformation commands
     @tf_cmds = []
     # list of post-processing commands
-    @post_cmds = []
+    @post_cmds = [['signature']]
     # hash of bangtag variables
-    @vars = {}
+    @vars = account.vars
     # keep track of what variables we're appending the value of between chunks
     @vore_stack = []
     # keep track of what type of nested components are active so we can !end them in order
@@ -36,6 +36,8 @@ class Bangtags
   end
 
   def process
+    return unless status.text&.present?
+
     status.text.gsub!('#!!', "#\u200c!")
 
     status.text.split(/(#!(?:.*:!#|{.*?}|[^\s#]+))/).each do |chunk|
@@ -297,6 +299,33 @@ class Bangtags
             @vore_stack.push('_comment')
             @component_stack.push(:var)
           end
+        when 'i', 'we'
+          chunk = nil
+          case cmd[1]
+          when 'am', 'are'
+            who = cmd[2]
+            if who.blank?
+              @vars.delete('_they:are')
+              next
+            elsif who == 'not'
+              who = cmd[3]
+              next if who.blank?
+              name = who.downcase.gsub(/\s+/, '')
+              @vars.delete("_they:are:#{name}")
+              @vars.delete('_they:are') if @vars['_they:are'] == name
+              next
+            end
+            name = who.downcase.gsub(/\s+/, '')
+            description = cmd[3..-1].join(':').strip
+            if description.blank?
+              if @vars["_they:are:#{name}"].nil?
+                @vars["_they:are:#{name}"] = who.strip
+              end
+            else
+              @vars["_they:are:#{name}"] = description
+            end
+            @vars['_they:are'] = name.strip
+          end
         end
       end
 
@@ -334,6 +363,8 @@ class Bangtags
 
     postprocess
 
+    account.save
+
     status.text = @chunks.join('')
     status.save
   end
@@ -343,6 +374,12 @@ class Bangtags
   def postprocess
     @post_cmds.each do |post_cmd|
       case post_cmd[0]
+      when 'signature'
+        name = @vars['_they:are']
+        next if name.blank?
+        description = @vars["_they:are:#{name}"]
+        next if description.blank?
+        @chunks << "\n\n---\n– #{description}"
       when 'media'
         media_idx = post_cmd[1]
         media_cmd = post_cmd[2]
diff --git a/app/models/status.rb b/app/models/status.rb
index 76923ab21..b7bd5cc84 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -551,7 +551,7 @@ class Status < ApplicationRecord
   end
 
   def process_bangtags
-    Bangtags.new(self).process if text&.present? && '#!'.in?(text)
+    Bangtags.new(self).process
   end
 
   def set_conversation