From ac1790f76d843ed125ffeac6962f50504f1bf559 Mon Sep 17 00:00:00 2001
From: David Gay <david@davidgay.org>
Date: Sun, 23 May 2021 19:01:19 -0400
Subject: Send achievement channel text messsage when someone levels up

---
 app/models/character.rb       |  6 +++++-
 app/models/character_skill.rb | 21 +++++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

(limited to 'app/models')

diff --git a/app/models/character.rb b/app/models/character.rb
index fd0f540..a6e8ff6 100644
--- a/app/models/character.rb
+++ b/app/models/character.rb
@@ -93,7 +93,11 @@ class Character < ApplicationRecord
 
   def add_skill_xp(skill, amount)
     skill = Skill.find_by_gid(skill) if skill.is_a? String
-    CharacterSkill.find_by(skill: skill).increment!(:xp, amount)
+    Character.transaction do
+      cs = CharacterSkill.find_by(skill: skill)
+      cs.xp += amount
+      cs.save!
+    end
   end
 
   def skill_level(skill)
diff --git a/app/models/character_skill.rb b/app/models/character_skill.rb
index 189f386..20468c3 100644
--- a/app/models/character_skill.rb
+++ b/app/models/character_skill.rb
@@ -4,6 +4,8 @@ class CharacterSkill < ApplicationRecord
   validates :skill_id, uniqueness: { scope: :character_id }
   validates :xp, numericality: { greater_than_or_equal_to: 0, only_integer: true }
 
+  before_update :send_chat_message_if_leveled_up
+
   scope :ordered_by_skill_name, -> { includes(:skill).order("skills.name") }
 
   XP_TOTALS_PER_LEVEL = [
@@ -24,6 +26,14 @@ class CharacterSkill < ApplicationRecord
     1459475733, 1680697391, 1935475040, 2228899094
   ].freeze
 
+  def self.level_for_xp(xp)
+    XP_TOTALS_PER_LEVEL.each_with_index do |total, index|
+      if total > xp
+        return index
+      end
+    end
+  end
+
   def level
     XP_TOTALS_PER_LEVEL.each_with_index do |total, index|
       return index if total > self.xp
@@ -42,4 +52,15 @@ class CharacterSkill < ApplicationRecord
     def xp_required_for_level(level)
       level <= 120 ? XP_TOTALS_PER_LEVEL[level - 1] : nil
     end
+
+    def send_chat_message_if_leveled_up
+      if CharacterSkill.level_for_xp(self.xp_was) < CharacterSkill.level_for_xp(self.xp)
+        chat_message = ChatMessage.new(body: "reached #{self.skill.name} level #{self.level}!",
+                                       target: self.character,
+                                       chat_room: ChatRoom.find_by_gid("achievement"))
+        if chat_message.save
+          ChatRoomChannel.broadcast_chat_message(chat_message)
+        end
+      end
+    end
 end
-- 
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