local base = require("Battle/Logic/AI/Decision/Decision_Base")
local Decision_TargetOnlyBossFight = class("Decision_TargetOnlyBossFight", base)
local BuffSkillSystem = require"Battle/Logic/Entity/System/BuffSkillSystem"
local SEARCH_ENEMY_DIS_SQR = FP.newV1(10000)
local NEW_WANDER_POS_POSIBILITY = FP.newV1(0.05)
local KEY_POS_GODBEAST = LuaConst.ESkillKeyPosition.BuffSkill2
function Decision_TargetOnlyBossFight:initialize(entity)
	base.initialize(self,entity)
	--类型
    self.Type = LuaConst.DecisionType.TargetOnlyBossFight
    --瞬时
    self.IsOnce = false
end

--[[
    进入该Decision
--]]
function Decision_TargetOnlyBossFight:DecisionIn(entity, decisionData)
    base.DecisionIn(self,entity,decisionData)
    SystemManager.SetTarget(entity, nil)
end

--[[
    退出该Decision
--]]
function Decision_TargetOnlyBossFight:DecisionOut(entity, decisionData)
    SystemManager.SetTarget(entity,nil)
    entity.components.target:SetForceTarget(nil)
    base.DecisionOut(self, entity, decisionData)
end

--[[
    能否进入
--]]
function Decision_TargetOnlyBossFight:CanEnter(entity, decisionData, command)
    local autoFightComponent = entity.components.autoFight
    return autoFightComponent.IsSyncAuto
end

--[[
    能否退出
--]]
function Decision_TargetOnlyBossFight:CanExit(entity, decisionData, command)
    local autoFightComponent = entity.components.autoFight
    return not autoFightComponent.IsSyncAuto
end

local MONSTER_TYPE_2_SERACH_TYPE_PLUS = 100
function Decision_TargetOnlyBossFight:SearchBoss(entity, targetComponent)
    local mainBoss = BattleDataGetter.GetMainBoss()
    if mainBoss then
        --找寻主Boss
        SystemManager.OnSearchTarget(entity, 1, SEARCH_ENEMY_DIS_SQR, 1, mainBoss._logicInitData._characterData.MonsterType + LuaConst.MONSTER_TYPE_2_SERACH_TYPE_PLUS)
        targetComponent:SetForceTarget(targetComponent.Target)
    end
end

local PAUSE_FRAME_AFTER_USER_INPUT = 10     --有玩家输入后，该Decision暂停几帧
--[[
    输出指令
--]]
function Decision_TargetOnlyBossFight:SetCommand(entity, decisionData, command)
    repeat
    	local aiBaseComponent = entity.components.aiBase
    	local decisionRecordDic = aiBaseComponent:GetDecisionRecordDic(decisionData)

        if command.MoveDir ~= FP.Const.Vector2_Zero or command.SkillIndex ~= 0  then
            --如果有玩家输入，记录这个输入的时间，并跳出AI运行
            decisionRecordDic.lastUserInputFrame = LogicUpdateManager._clientHandleFrame
            entity.components.target:SetForceTarget(nil)
            command.DontHandle = true
            break
        end

        if decisionRecordDic.lastUserInputFrame and LogicUpdateManager._clientHandleFrame - decisionRecordDic.lastUserInputFrame < PAUSE_FRAME_AFTER_USER_INPUT then
            --策划需求：如果玩家有输入，就得暂停AI运行一段时间
            command.DontHandle = true
            break
        end

        local targetComponent = entity.components.target
        if targetComponent.Target == nil then
            self:SearchBoss(entity, targetComponent)
        end

        if targetComponent.Target then
            --有目标就追击目标
            self:CommandChaseUseSkill(entity, command, decisionData, decisionRecordDic)
            if self:CanUseBuffSkill(entity, decisionRecordDic, 2) then
                BuffSkillSystem.ReleaseBuffSkill(entity, KEY_POS_GODBEAST) --无脑调，如果放不了就不会放
            end
        end
    until true
end

return Decision_TargetOnlyBossFight