local EventSystem = require('Event/EventSystem')

--视图层-视野系统
local ExpVisualFieldSystem = {}

function ExpVisualFieldSystem.OnVisualFieldChanged(visualFieldComp, oldLv, oldGroup)
    if LogicUpdateManager._curEntity then
        local myVisualFieldComp = LogicUpdateManager._curEntity.components.visualField
        if myVisualFieldComp == visualFieldComp then
            --logging.error(LTAG.ERROR, "HYW : OnVisualFieldChanged to ", visualFieldComp:GetVisualLevel(), visualFieldComp:GetVisualGroup(), "  entity : ", visualFieldComp.entity.EntityID)
            for k,_entity in pairs(LogicUpdateManager._entityDic) do --pairs safe  视图操作对顺序不敏感
                if LogicUpdateManager._curEntity ~= _entity and _entity:IsActive() then
                    ExpVisualFieldSystem.RefreshEntityVisualToTarget(myVisualFieldComp, _entity)
                    --↑
                end
            end
        end
    end
end

function ExpVisualFieldSystem.OnVisiblityChanged(visualFieldComp, oldLv, oldGroup)
    if LogicUpdateManager._curEntity then
        --logging.error(LTAG.ERROR, "HYW : OnVisiblityChanged to ", visualFieldComp:GetVisiblityLevel(), visualFieldComp:GetVisiblityGroup(), "  entity : ", visualFieldComp.entity.EntityID)
        local myVisualFieldComp = LogicUpdateManager._curEntity.components.visualField
        if myVisualFieldComp == visualFieldComp then
            if myVisualFieldComp:GetVisiblityLevel() > 0 then
                LogicUpdateManager._curEntity.ExpEntity:SetMaterialByType(LuaConst.EMaterialType.TRANSPARENT)
            else
                LogicUpdateManager._curEntity.ExpEntity:ResetMaterial()
            end
        else
            ExpVisualFieldSystem.RefreshEntityVisualToTarget(myVisualFieldComp, visualFieldComp.entity)
        end
    end
end

function ExpVisualFieldSystem.RefreshEntityVisualToTarget(myVisualFieldComp, targetEntity)
    if targetEntity.ExpEntity._visible then -- _visible 是视野机制之上的可见性，视野机制导致不可见时是控制的 isActorVisible
        local canSee = LevelManager.CurLevelFunc:CanSeeEntity(myVisualFieldComp.entity, targetEntity)
        targetEntity.ExpEntity:SetActorVisible(canSee, true)
        ExpSystemManager.SetSignEffectVisible(targetEntity.ExpEntity, canSee)
        LevelManager.CurLevelFunc.exp:OnCanSeeChanged(myVisualFieldComp, targetEntity, canSee)
        if not canSee or (targetEntity:IsActive() and targetEntity:IsAlive()) then
            EventSystem.Dispatch(EventID.UIBattle_Element_Active, targetEntity.ExpEntity.RenderEntity, canSee)
            if targetEntity.ExpEntity.PetRenderEntity then
                EventSystem.Dispatch(EventID.UIBattle_Element_Active, targetEntity.ExpEntity.PetRenderEntity, canSee)
            end
        end
        if canSee and (targetEntity.components.visualField and targetEntity.components.visualField:GetVisiblityLevel() > 0) then
            targetEntity.ExpEntity:SetMaterialByType(LuaConst.EMaterialType.TRANSPARENT)
        else
            targetEntity.ExpEntity:ResetMaterial()
        end
    end
end

function ExpVisualFieldSystem.RefreshEntityVisualToEnemy(myVisualFieldComp)
    local entity = myVisualFieldComp.entity
    for i,_entity in ipairs(LogicUpdateManager.EntityList_Normal) do
        if _entity:IsActive() and CampManager.IsEnemyEntity(entity, _entity) then
            ExpVisualFieldSystem.RefreshEntityVisualToTarget(myVisualFieldComp, _entity)
        end
    end

    for i,_entity in ipairs(LogicUpdateManager.EntityList_Sync) do
        if _entity:IsActive() and CampManager.IsEnemyEntity(entity, _entity) then
            ExpVisualFieldSystem.RefreshEntityVisualToTarget(myVisualFieldComp, _entity)
        end
    end
end

function ExpVisualFieldSystem.OnConvertRenderVisual(renderEntity, isVisible)
    if LogicUpdateManager._curEntity then
        if isVisible then
            if renderEntity then
                local expEntity = ExpSystemManager.GetExpEntityByRenderEntity(renderEntity)
                if expEntity then
                    if CampManager.IsEnemyEntity(LogicUpdateManager._curEntity, expEntity.Entity) then
                        ExpVisualFieldSystem.RefreshEntityVisualToTarget(LogicUpdateManager._curEntity.components.visualField, expEntity.Entity)
                    end
                end
            end
        end
    end
end

return ExpVisualFieldSystem