local Base = require("Battle/Logic/AI/Decision/Decision_Base")
local Decision_RetinueFollow = class("Decision_RetinueFollow", Base)
local RetinueSystem = require"Battle/Logic/Entity/System/RetinueSystem"

--[[
	初始化
--]]
function Decision_RetinueFollow:initialize(entity)
    --类型
    self.Type = LuaConst.DecisionType.RetinueFollow

    --瞬时
    self.IsOnce = false
end

function Decision_RetinueFollow:CanEnter(entity, decisionData)
    if entity:GetMasterEntity() then
        return not RetinueSystem.IsInRetinueExpectedArea(entity)
    end

    return false
end

--[[
	进入该Decision
--]]
function Decision_RetinueFollow:DecisionIn(entity, decisionData)
    entity.components.target:SetFollowTarget(entity:GetMasterEntity())
    self:FindRetinuePath(entity, decisionData)
end

function Decision_RetinueFollow:FindRetinuePath(entity, decisionData, decisionRecordDic)
    decisionRecordDic = decisionRecordDic or entity.components.aiBase:GetDecisionRecordDic(decisionData)
    if decisionRecordDic then
        decisionRecordDic.nextFindPathFrame = LogicUpdateManager._clientHandleFrame + decisionData.IntParam1
    end

    local expectedPos, isBornAreaPos = RetinueSystem.GetRetinueExpectedPos(entity)
    if expectedPos then
        if isBornAreaPos then
            SystemManager.OnConvey(entity, expectedPos, expectedPos - entity:GetLogicPos(), true)
        else
            SystemManager.FindPath(entity, expectedPos, true)
        end
    end
end

function Decision_RetinueFollow:DecisionOut(entity, decisionData)
    
end
--[[
	能否退出
	退出条件：移动到固定目标点
--]]
function Decision_RetinueFollow:CanExit(entity, decisionData, command)
    return RetinueSystem.IsInRetinueExpectedArea(entity)
end

--[[
	输出指令
--]]
function Decision_RetinueFollow:SetCommand(entity, decisionData, command)
    local decisionRecordDic = entity.components.aiBase:GetDecisionRecordDic(decisionData)
    if decisionRecordDic then
        if LogicUpdateManager._clientHandleFrame > decisionRecordDic.nextFindPathFrame then
           self:FindRetinuePath(entity, decisionData, decisionRecordDic)
        end
    end

    return self:RunToPathPoint(entity, command,decisionData)
end

return Decision_RetinueFollow