Add Trigger.CreateFromConfig function to help initialize new triggers

src/types/triggers/auratrigger.lua

@@ -27,6 +27,23 @@ local Trigger = types.Trigger
 local AuraTrigger = types.CreateClass("AuraTrigger", Trigger)
 types.AuraTrigger = AuraTrigger
 
+
+---Creates a new AuraTrigger from a config description and attaches it to the
+---correct data source
+---@param unit UnitFrame
+---@param config table
+---@return AuraTrigger
+function AuraTrigger.CreateFromConfig(unit, config)
+    local trigger = AuraTrigger:new(
+        config.spellId,
+        config.own,
+        config.requiredCount,
+        config.invert
+    )
+    unit.auras:AddTrigger(trigger)
+    return trigger
+end
+
 ---@return AuraTrigger
 function AuraTrigger.new(cls, ...)
     --- I really dislike duplicating this everywhere but it makes

src/types/triggers/multitrigger.lua

@@ -30,6 +30,20 @@ local Trigger = types.Trigger
 local MultiTrigger = types.CreateClass("MultiTrigger", Trigger)
 types.MultiTrigger = MultiTrigger
 
+---Creates a new MultiTrigger from a config description
+---@param unit UnitFrame
+---@param config table
+---@return MultiTrigger
+function MultiTrigger.CreateFromConfig(unit, config)
+    local trigger = MultiTrigger:new(config.invert)
+    for _, childConfig in ipairs(config.children) do
+        local childType = types[childConfig.kind]
+        local child = childType.CreateFromConfig(unit, childConfig)
+        trigger:AddTrigger(child)
+    end
+    return trigger
+end
+
 --- Initialize a new Trigger object
 ---@param invert boolean|nil
 function MultiTrigger:Init(invert)

src/types/triggers/statustrigger.lua

@@ -25,6 +25,16 @@ local Trigger = types.Trigger
 local StatusTrigger = types.CreateClass("StatusTrigger", Trigger)
 types.StatusTrigger = StatusTrigger
 
+---Creates a new StatusTrigger from a config description
+---@param unit UnitFrame
+---@param config table
+function StatusTrigger.CreateFromConfig(unit, config)
+    local trigger = StatusTrigger:new(config.status, config.requiredCount,
+        config.invert)
+    unit.auras:AddTrigger(trigger)
+    return trigger
+end
+
 ---@return StatusTrigger
 function StatusTrigger.new(cls, ...)
     --- I really dislike duplicating this everywhere but it makes

src/types/triggers/trigger.lua

@@ -26,6 +26,14 @@ local types = omi.GetModule("types")
 local Trigger = types.CreateClass("Trigger")
 types.Trigger = Trigger
 
+
+---@param unit UnitFrame
+---@param config table
+---@return Trigger
+function Trigger.CreateFromConfig(unit, config)
+    error("Must override")
+end
+
 --- Initialize a new Trigger object
 ---@param invert boolean|nil
 function Trigger:Init(invert)

src/types/unitframe.lua

@@ -29,12 +29,6 @@ local SquareIndicator = types.SquareIndicator
 ---@class SquareIndicator
 local BorderIndicator = types.BorderIndicator
 
----@class AuraTrigger
-local AuraTrigger = types.AuraTrigger
-
----@class StatusTrigger
-local StatusTrigger = types.StatusTrigger
-
 ---@class UnitFrame
 local UnitFrame = types.CreateClass("UnitFrame")
 types.UnitFrame = UnitFrame
@@ -97,27 +91,15 @@ function UnitFrame:Init(unit, config)
 end
 
 function UnitFrame:CreateTriggers(triggers)
-    for _, trigger in ipairs(triggers) do
-        local kind = trigger.kind
-        local indicator = self:CreateIndicator(trigger.indicator)
-        if kind == "AuraTrigger" then
-            local at = AuraTrigger:new(
-                    trigger.spellId,
-                    trigger.own,
-                    trigger.requiredCount,
-                    trigger.invert
-            )
-            at:SetTarget(indicator)
-            self.auras:AddTrigger(at)
-        elseif kind == "StatusTrigger" then
-            local st = StatusTrigger:new(trigger.status, trigger.requiredCount, trigger.invert)
-            st:SetTarget(indicator)
-            self.auras:AddTrigger(st)
-        end
+    for _, config in ipairs(triggers) do
+        local indicator = self:CreateIndicator(config.indicator)
+        ---@type Trigger
+        local triggerType = types[config.kind]
+        local trigger = triggerType.CreateFromConfig(self, config)
+        trigger:SetTarget(indicator)
     end
 end
 
-
 function UnitFrame:CreateIndicator(indicator)
     local kind = indicator.kind
     if kind == "SquareIndicator" then