local ConditionManager = {}

local _conditionNodeTable = {}
local _conditionDataTreeTable = {}
local FP=FP
local string_isNilOrEmpty=string.isNilOrEmpty

--加载需要的模块
local ConditionAnalysis = require "Battle/Logic/AI/Condition/ConditionAnalysis"
local ConditionNode = require "Battle/Logic/AI/Condition/ConditionNode"

--[[
	初始化
--]]
function ConditionManager.Init()
    ConditionAnalysis.Init()
end

--[[
	获取ConditionNode
--]]
function ConditionManager.CreateConditionNode(arg)
    local conditionNode = _conditionNodeTable[arg]
    
    if not conditionNode then
        conditionNode = ConditionNode:new(arg)
    end
    
    return conditionNode
end

--[[
	获取ConditionDataTree
--]]
function ConditionManager.GetConditionDataTree(str)
    if string_isNilOrEmpty(str) then
        return nil
    end
    
    local tree = _conditionDataTreeTable[str]
    
    if not tree then
        tree = ConditionAnalysis.BuildConditionDataTree(str)
        _conditionDataTreeTable[str] = tree
    end
    
    return tree
end

--[[
	是否满足条件 entity、tree是必须要传的参数， missileOrMissileData、buffObject、params是可选参数，属于上下文信息，某些FuncNode需要额外的上下文才能进行判断
    missileOrMissileData 可能是missile，也可能是missileData，根据事件不同数据也不同，具体见BuffTrigger表的说明页或者BattleEventSystem里面的参数构造代码
--]]
function ConditionManager.MeetCondition(entity, tree, missileOrMissileData, buffObject, params)
    if tree == nil then
        return true
    else
        return tree:Run(entity, missileOrMissileData, buffObject, params) ~= FP.Const.Zero
    end
end

return ConditionManager