local UIBattleBuffPanel = UIViewClass()
local EventSystem = require('Event/EventSystem')
local ZERO = 0
local MAX = 9999 --超过这个时间认定为永久buff
local tonumberV1 = FP.tonumberV1
local type = type
local isNilOrEmpty = string.isNilOrEmpty

local function SortBuffList(a, b)
    local buffDataA = a.BuffInfoData
    local buffDataB = b.BuffInfoData
    local priorityA = buffDataA.IconPriority
    local priorityB = buffDataB.IconPriority
    local addTimeA = a.AddTime
    local addTimeB = b.AddTime
    if priorityA ~= priorityB then
        return priorityA > priorityB
    else
        if addTimeA ~= addTimeB then
            return addTimeA > addTimeB
        else
            return buffDataA.BuffID < buffDataB.BuffID
        end
    end
end

function UIBattleBuffPanel:OnOpened(context)
    self:RegistSystemEvent(EventID.UI_DelayToTownPlay, self.OnLevelLoaded)

    self.showType = context.buffType
    self.entityId = context.entityId
    self.isRefreshCD = false
    self.isBeginTimer = false
    self.pauseRefresh = false

    self.buffItemList = {}
    self.initBuffInfoList = {}

    self:RegistSystemEvent(EventID.Level_Pause, self.PauseCD)
    self:RegistSystemEvent(EventID.Player_HidingUpdate, self.PauseCDByHidingUpdate)
    --刷新buff
    BattleDataGetter.GetShowingBuffInfoByEntityId(self.entityId, self.initBuffInfoList)
    for i, v in ipairs(self.initBuffInfoList) do
        v.AddTime = UTL.Time.GetServerTimestamp()
    end
    for _,v in ipairs(self.initBuffInfoList) do
        if v.SourceEntity then
            self:UpdateBuffShow(v.BuffInfoData, v.BuffTimer, v.BuffLayer, v.SourceEntity.EntityID)
        end
    end
    if self.showType == LuaConst.UIBuffShowType.PlayerSelf then
        self:RegistSystemEvent(EventID.Set_CurEntity, self.OnEntityChange)
        self:RegistSystemEvent(EventID.UI_SelectOneReviveOver, self.OnSelectOneReviveOver)
    elseif self.showType == LuaConst.UIBuffShowType.PlayerOthers then
        self:RegistSystemEvent(EventID.Level_SwitchHero, self.OnSwitchHero)
    end
end

function UIBattleBuffPanel:OnSwitchHero(type, entity)
    self:OnEntityChange(entity:GetEntityID())
end

function UIBattleBuffPanel:OnLevelLoaded()
    --当前可能正处于暂停状态
    if BattleDataGetter.IsLevelPause() then
        self:PauseCD(true)
    end
end

function UIBattleBuffPanel:PauseCDByHidingUpdate(entityId,pause)
    if entityId == self.entityId then
        if pause == nil then pause = false end
        self:PauseCD(pause)
    end
end

function UIBattleBuffPanel:PauseCD(pause)
    self.pauseRefresh = true
    self.isRefreshCD = true
    self.isBeginTimer = pause
    self.obj_ScrollPanel:RefreshCells()
    self.isRefreshCD = false
    self.pauseRefresh = false
end

function UIBattleBuffPanel:OnSelectOneReviveOver(entity)
    if entity and entity:GetEntityID() == BattleDataGetter.GetCurEntityID() then
        self:OnEntityChange(entity:GetEntityID())
    end
end

--切换武将，需要清除上一个武将的buff
function UIBattleBuffPanel:OnEntityChange(entityId)
    --清除buff
    for i = #self.buffItemList, 1, -1 do
        table.remove(self.buffItemList,i)
    end
    self.obj_ScrollPanel:ClearCells()
    --初始化buff
    table.clearArray(self.initBuffInfoList)
    self.entityId = entityId
    BattleDataGetter.GetShowingBuffInfoByEntityId(self.entityId, self.initBuffInfoList)
    for i, v in ipairs(self.initBuffInfoList) do
        v.AddTime = UTL.Time.GetServerTimestamp()
    end
    for _,v in ipairs(self.initBuffInfoList) do
        if v.SourceEntity then
            self:UpdateBuffShow(v.BuffInfoData,v.BuffTimer,v.BuffLayer,v.SourceEntity.EntityID)
        end
    end
end

function UIBattleBuffPanel:OnCellInit(scrollRect, index, cellTable, data)
	if scrollRect == self.obj_ScrollPanel then
        --防止cell从池子里取出来的amount不对，重新设一下
        --cellTable.sprite_CDMask:SetSpriteMaskFillAmount(0)
        if self.isRefreshCD then
            if data.BuffTimer <= MAX then
                if self.isBeginTimer then
                    cellTable.sprite_CDMask:PauseTimer()
                else
                    cellTable.sprite_CDMask:ResumeTimer()
                end
            else
                cellTable.sprite_CDMask:EndTimer()
                cellTable.sprite_CDMask:SetSpriteMaskFillAmount(0)
            end
        else
            local buffInfoData = data.BuffInfoData
            UIUtils.SetImageByAssetBundle(cellTable.sprite_BuffIcon, UTL.String.GetSmallIconPath(buffInfoData.BuffIcon))
            local buffTime = data.BuffTimer
            local entity = BattleDataGetter.GetEntityByEntityID(self.entityId)
            if buffTime <= MAX then
                if buffTime and buffTime > 0 then
                    local leftTime = BattleDataGetter.GetEntityBuffUpdateTimerByID(entity, data.BuffID)
                    leftTime = leftTime > 0 and leftTime or buffTime
                    cellTable.sprite_CDMask:ResetAndBeginTimer(true, buffTime - leftTime, buffTime)
                else
                    cellTable.sprite_CDMask:EndTimer()
                end
            else --常驻显示图标即可
                cellTable.sprite_CDMask:EndTimer()
                cellTable.sprite_CDMask:SetSpriteMaskFillAmount(0)
            end

            --层数
            local layer = data.BuffLayer
            if layer and layer > 1 then
                cellTable.lab_FloorNum.text = layer
            else
                cellTable.lab_FloorNum.text = nil
            end
        end
	end
end

function UIBattleBuffPanel:OnCellClicked(scrollRect, index, cellTable, target, data)
    if scrollRect == self.obj_ScrollPanel then
        if not self.pauseRefresh then
            UIManager.OpenView(Const_UI_Lua.UIEnum.UIBattleBuffDetailTips, {buffInfoList = self.buffItemList, entityId = self.entityId}, "Common/UIBuffTips")
        end
    end
end


function UIBattleBuffPanel:GetBuffItemInfoIndex(buffData, sourceEntityId)
    local index = -1
    for i, buffItemInfo in ipairs(self.buffItemList) do
        if buffItemInfo.BuffID == buffData.BuffID then
            if buffData.IsRecordSource then
                if sourceEntityId == buffItemInfo.SourceEntityId then
                    index = i
                    break
                end
            else
                index = i
                break
            end
        end
    end
    return index
end

function UIBattleBuffPanel:IsIconBuffShow(buffData)
    if isNilOrEmpty(buffData.BuffIcon) then
        return false
    end
    --主城buff不显示在战斗中，暂时不需要，先注释
    --if MDL.HomeMain.GetIfBuffCapital(buffData.BuffID) then
    --    return false
    --end
    return true
end

function UIBattleBuffPanel:AddBuffItem(buffData, time, layer, sourceEntityId)
    local buffItemInfo = {
        BuffID = buffData.BuffID,
        BuffInfoData = buffData,
        BuffLayer = layer,
        BuffTimer = time,
        SourceEntityId = sourceEntityId,
        AddTime = UTL.Time.GetServerTimestamp(),
    }
    table.insert(self.buffItemList, 1, buffItemInfo)
    table.sort(self.buffItemList, SortBuffList)
    return buffItemInfo, self:GetBuffItemInfoIndex(buffData, sourceEntityId)
end

--战斗推一个buff过来，判断当前是否在显示，是重置时间，不是则新增
--同样的buff，判断层数或者时长为0，将buff销毁
function UIBattleBuffPanel:UpdateBuffShow(buffData, time, layer, sourceEntityId)
    if self:IsIconBuffShow(buffData) then
        local buffTime = type(time) == "table" and tonumberV1(time) or time
        local index = self:GetBuffItemInfoIndex(buffData, sourceEntityId)
        if index > 0 then
            --已经存在，更新显示
            local buffItemInfo = self.buffItemList[index]
            if buffTime > ZERO and layer > ZERO then
                buffItemInfo.BuffTimer = buffTime
                buffItemInfo.BuffLayer = layer
                self.obj_ScrollPanel:UpdateIndex(index - 1, buffItemInfo)
            else
                for i, data in ipairs(self.buffItemList) do
                    if data == buffItemInfo then
                        table.remove(self.buffItemList, i)
                        break
                    end
                end
                self.obj_ScrollPanel:ReloadAll(self.buffItemList)
            end
        else
            --新增的
            if buffTime > ZERO and layer > ZERO then
                local newBuffData, newBuffIndex = self:AddBuffItem(buffData, buffTime, layer, sourceEntityId)
                self.obj_ScrollPanel:InsertData(newBuffIndex - 1, newBuffData, 0)
            end
        end
        EventSystem.Dispatch(EventID.UI_UpdateBuff_Tips, self.entityId, self.buffItemList)
    end
end

return UIBattleBuffPanel