// SiYuan - Refactor your thinking
// Copyright (c) 2020-present, b3log.org
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package av

import (
	"reflect"
	"strings"
	"time"

	"github.com/88250/lute/ast"
	"github.com/siyuan-note/logging"
	"github.com/siyuan-note/siyuan/kernel/util"
)

// ViewFilter 描述了视图过滤规则的结构。
// 叶子节点：Column/Operator/Value 等字段有效，Filters 为空。
// 分组节点：Combination 指明子节点的组合方式，Filters 为子节点列表（递归）。
type ViewFilter struct {
	Column        string            `json:"column"`                  // 字段（列）ID，叶子节点有效
	Qualifier     FilterQuantifier  `json:"quantifier,omitempty"`    // 量词，叶子节点有效
	Operator      FilterOperator    `json:"operator"`                // 操作符，叶子节点有效
	Value         *Value            `json:"value"`                   // 过滤值，叶子节点有效
	RelativeDate  *RelativeDate     `json:"relativeDate,omitempty"`  // 相对时间，叶子节点有效
	RelativeDate2 *RelativeDate     `json:"relativeDate2,omitempty"` // 第二个相对时间，叶子节点有效
	Combination   FilterCombination `json:"combination,omitempty"`   // 组合方式，分组节点有效
	Filters       []*ViewFilter     `json:"filters,omitempty"`       // 子节点，分组节点有效（递归）
}

// FilterCombination 描述了分组节点中子过滤条件的组合方式。
type FilterCombination string

const (
	FilterCombinationAnd FilterCombination = "and" // 全部满足
	FilterCombinationOr  FilterCombination = "or"  // 任一满足
)

// IsGroup 判断该过滤节点是否为分组节点：设置了组合方式或带有子节点即为分组。
func (filter *ViewFilter) IsGroup() bool {
	return nil != filter && ("" != filter.Combination || 0 < len(filter.Filters))
}

type RelativeDateUnit int

const (
	RelativeDateUnitDay = iota
	RelativeDateUnitWeek
	RelativeDateUnitMonth
	RelativeDateUnitYear
)

type RelativeDateDirection int

const (
	RelativeDateDirectionBefore = -1
	RelativeDateDirectionThis   = 0
	RelativeDateDirectionAfter  = 1
)

type RelativeDate struct {
	Count     int                   `json:"count"`     // 数量
	Unit      RelativeDateUnit      `json:"unit"`      // 单位：0 天、1 周、2 月、3 年
	Direction RelativeDateDirection `json:"direction"` // 方向：-1 前、0 当前、1 后
}

type FilterOperator string

const (
	FilterOperatorIsEqual          FilterOperator = "="
	FilterOperatorIsNotEqual       FilterOperator = "!="
	FilterOperatorIsGreater        FilterOperator = ">"
	FilterOperatorIsGreaterOrEqual FilterOperator = ">="
	FilterOperatorIsLess           FilterOperator = "<"
	FilterOperatorIsLessOrEqual    FilterOperator = "<="
	FilterOperatorContains         FilterOperator = "Contains"
	FilterOperatorDoesNotContain   FilterOperator = "Does not contains"
	FilterOperatorIsEmpty          FilterOperator = "Is empty"
	FilterOperatorIsNotEmpty       FilterOperator = "Is not empty"
	FilterOperatorStartsWith       FilterOperator = "Starts with"
	FilterOperatorEndsWith         FilterOperator = "Ends with"
	FilterOperatorIsBetween        FilterOperator = "Is between"
	FilterOperatorIsTrue           FilterOperator = "Is true"
	FilterOperatorIsFalse          FilterOperator = "Is false"
)

type FilterQuantifier string

const (
	FilterQuantifierUndefined FilterQuantifier = "" // 等同于 Any
	FilterQuantifierAny       FilterQuantifier = "Any"
	FilterQuantifierAll       FilterQuantifier = "All"
	FilterQuantifierNone      FilterQuantifier = "None"
)

func Filter(viewable Viewable, attrView *AttributeView, rollupFurtherCollections map[string]Collection, cachedAttrViews map[string]*AttributeView) {
	collection := viewable.(Collection)
	filters := collection.GetFilters()
	if 1 > len(filters) {
		return
	}

	// 归一化为单一根组：spec 5 起顶层应为一个根组；旧数据/异常数据为扁平叶子数组时，
	// 在内存里包成隐式 AND 根组参与求值，不修改原数据、不崩溃。
	root := normalizeFiltersAsRoot(filters)
	if nil == root {
		return
	}

	// 递归收集所有叶子引用的列 ID 在 values 中的下标，避免每行重复查找。
	fields := collection.GetFields()
	colIndexByColumn := map[string]int{}
	collectLeafColumnIndexes([]*ViewFilter{root}, fields, colIndexByColumn)

	var items []Item
	for _, item := range collection.GetItems() {
		values := item.GetValues()
		if evalNode(root, values, colIndexByColumn, attrView, item.GetID(), rollupFurtherCollections, cachedAttrViews) {
			items = append(items, item)
		}
	}
	collection.SetItems(items)
}

// normalizeFiltersAsRoot 将 view.Filters 归一化为一个根组并返回。
// 正常情况（spec 5）下 filters 为 [根组]，直接返回 filters[0]。
// 若 filters 为扁平叶子数组（旧数据或异常），构造一个隐式 AND 根组返回（不写回原 slice）。
func normalizeFiltersAsRoot(filters []*ViewFilter) *ViewFilter {
	if 1 > len(filters) {
		return nil
	}
	if 1 == len(filters) && filters[0].IsGroup() {
		return filters[0]
	}
	return &ViewFilter{Combination: FilterCombinationAnd, Filters: filters}
}

func ValidateFilterDepth(filters []*ViewFilter) (err error) {
	for _, f := range filters {
		if err = validateFilterNodeDepth(f, 0); nil != err {
			return
		}
	}
	return
}

func validateFilterNodeDepth(node *ViewFilter, depth int) (err error) {
	if nil == node || !node.IsGroup() {
		return
	}
	if depth > MaxFilterNestingDepth {
		logging.LogErrorf("filter nesting depth [%d] exceeds the maximum [%d]", depth, MaxFilterNestingDepth)
		err = ErrFilterTooDeep
		return
	}
	for _, child := range node.Filters {
		if err = validateFilterNodeDepth(child, depth+1); nil != err {
			return
		}
	}
	return
}

// collectLeafColumnIndexes 递归收集所有叶子节点引用的列 ID 在 fields 中的下标。
func collectLeafColumnIndexes(nodes []*ViewFilter, fields []Field, colIndexByColumn map[string]int) {
	for _, node := range nodes {
		if nil == node {
			continue
		}
		if node.IsGroup() {
			collectLeafColumnIndexes(node.Filters, fields, colIndexByColumn)
			continue
		}
		if "" == node.Column {
			continue
		}
		if _, ok := colIndexByColumn[node.Column]; ok {
			continue
		}
		for i, f := range fields {
			if f.GetID() == node.Column {
				colIndexByColumn[node.Column] = i
				break
			}
		}
	}
}

// evalNode 递归求值：分组按 Combination 聚合子节点，叶子调用原单元格求值逻辑。
// 空分组：AND 恒真、OR 恒假。叶子节点的空值/未配置语义由 evalLeaf → value.Filter 保留原扁平行为。
func evalNode(node *ViewFilter, values []*Value, colIndexByColumn map[string]int, attrView *AttributeView, itemID string, rollupFurtherCollections map[string]Collection, cachedAttrViews map[string]*AttributeView) bool {
	if nil == node {
		return false
	}

	if node.IsGroup() {
		if 1 > len(node.Filters) {
			// 空分组：AND 视为全部满足（恒真，不阻断）；OR 视为任一满足（空集恒假）。
			return FilterCombinationOr != node.Combination
		}
		switch node.Combination {
		case FilterCombinationOr:
			for _, child := range node.Filters {
				if evalNode(child, values, colIndexByColumn, attrView, itemID, rollupFurtherCollections, cachedAttrViews) {
					return true // OR 短路：任一子节点通过即通过
				}
			}
			return false
		default: // FilterCombinationAnd 及空值兜底为 AND
			for _, child := range node.Filters {
				if !evalNode(child, values, colIndexByColumn, attrView, itemID, rollupFurtherCollections, cachedAttrViews) {
					return false // AND 短路：任一子节点不通过即不通过
				}
			}
			return true
		}
	}

	// 叶子节点：列不存在（字段被删）则不过；其余交由 evalLeaf → value.Filter 判定。
	// 注意：未配置的叶子（Value/RelativeDate 均为 nil）由 value.Filter 返回 true（视为通过），
	// 保留扁平时代的原语义，避免对已存在但未填值的过滤条件产生回归。
	index, ok := colIndexByColumn[node.Column]
	if !ok {
		return false // 列不存在（字段被删）则不过
	}

	return evalLeaf(node, values, index, attrView, itemID, rollupFurtherCollections, cachedAttrViews)
}

// evalLeaf 对叶子过滤节点做单元格级判定，保留扁平时代 Filter() 的空值特判与 text 豁免语义。
func evalLeaf(filter *ViewFilter, values []*Value, index int, attrView *AttributeView, itemID string, rollupFurtherCollections map[string]Collection, cachedAttrViews map[string]*AttributeView) bool {
	if 0 > index || index >= len(values) {
		return false
	}

	operator := filter.Operator
	if nil == values[index] {
		// 单元格无值：Is not empty 不过、Is empty 过、其余操作符一律不过
		if FilterOperatorIsNotEmpty == operator {
			return false
		} else if FilterOperatorIsEmpty == operator {
			return true
		}
		return false
	}

	return values[index].Filter(filter, attrView, itemID, rollupFurtherCollections, cachedAttrViews)
}

// remapFilterColumns 递归将过滤节点树中所有叶子引用的列 ID 映射为新 ID（用于复制视图）。
func remapFilterColumns(nodes []*ViewFilter, keyIDMap map[string]string) []*ViewFilter {
	for _, node := range nodes {
		if nil == node {
			continue
		}
		if node.IsGroup() {
			remapFilterColumns(node.Filters, keyIDMap)
			continue
		}
		node.Column = keyIDMap[node.Column]
	}
	return nodes
}

// CloneFilters 递归深拷贝过滤节点树，叶子与分组结构均完整复制（含新 Combination/Filters 字段）。
func CloneFilters(filters []*ViewFilter) (ret []*ViewFilter) {
	for _, f := range filters {
		if nil == f {
			continue
		}
		cloned := &ViewFilter{
			Column:        f.Column,
			Qualifier:     f.Qualifier,
			Operator:      f.Operator,
			Value:         f.Value,
			RelativeDate:  f.RelativeDate,
			RelativeDate2: f.RelativeDate2,
			Combination:   f.Combination,
		}
		if 0 < len(f.Filters) {
			cloned.Filters = CloneFilters(f.Filters)
		}
		ret = append(ret, cloned)
	}
	return
}

// RemoveFiltersByColumn 递归移除所有引用指定列的叶子节点，并裁剪变空的分组节点。
// 返回处理后的节点列表（原列表不被修改，返回新列表）。
func RemoveFiltersByColumn(filters []*ViewFilter, column string) (ret []*ViewFilter) {
	for _, f := range filters {
		if nil == f {
			continue
		}
		if f.IsGroup() {
			children := RemoveFiltersByColumn(f.Filters, column)
			// 子节点全部被移除时丢弃空分组
			if 0 < len(children) {
				f.Filters = children
				ret = append(ret, f)
			}
			continue
		}
		if f.Column == column {
			continue
		}
		ret = append(ret, f)
	}
	return
}

// RemoveSelectOptionFromFilters 递归从引用指定列的 select/mSelect 叶子中移除给定选项值。
// 若叶子移除后选项为空（且非 Is empty/Is not empty 操作符），则整体移除该叶子；并裁剪变空的分组。
// 返回处理后的节点列表。
func RemoveSelectOptionFromFilters(filters []*ViewFilter, column, optionContent string) (ret []*ViewFilter) {
	for _, f := range filters {
		if nil == f {
			continue
		}
		if f.IsGroup() {
			children := RemoveSelectOptionFromFilters(f.Filters, column, optionContent)
			if 0 < len(children) {
				f.Filters = children
				ret = append(ret, f)
			}
			continue
		}
		if f.Column != column {
			ret = append(ret, f)
			continue
		}
		if nil == f.Value || (KeyTypeSelect != f.Value.Type && KeyTypeMSelect != f.Value.Type) {
			ret = append(ret, f)
			continue
		}
		if FilterOperatorIsEmpty == f.Operator || FilterOperatorIsNotEmpty == f.Operator {
			ret = append(ret, f)
			continue
		}
		for i, opt := range f.Value.MSelect {
			if optionContent == opt.Content {
				f.Value.MSelect = append(f.Value.MSelect[:i], f.Value.MSelect[i+1:]...)
				break
			}
		}
		if 1 > len(f.Value.MSelect) {
			continue // 选项删空则移除该过滤条件
		}
		ret = append(ret, f)
	}
	return
}

// RenameSelectOptionInFilters 递归将引用指定列的 select/mSelect 叶子中的旧选项名改为新名与新颜色。
func RenameSelectOptionInFilters(filters []*ViewFilter, column, oldContent, newContent, newColor string) {
	for _, f := range filters {
		if nil == f {
			continue
		}
		if f.IsGroup() {
			RenameSelectOptionInFilters(f.Filters, column, oldContent, newContent, newColor)
			continue
		}
		if f.Column != column || nil == f.Value {
			continue
		}
		if KeyTypeSelect != f.Value.Type && KeyTypeMSelect != f.Value.Type {
			continue
		}
		for _, opt := range f.Value.MSelect {
			if oldContent == opt.Content {
				opt.Content = newContent
				opt.Color = newColor
			}
		}
	}
}

// PruneInvalidColumnFilters 递归移除引用了不存在列的叶子节点，并裁剪变空的分组节点。
// validColumns 为当前仍存在的列 ID 集合。返回处理后的节点列表及是否有改动。
func PruneInvalidColumnFilters(filters []*ViewFilter, validColumns map[string]bool) (ret []*ViewFilter, changed bool) {
	for _, f := range filters {
		if nil == f {
			continue
		}
		if f.IsGroup() {
			children, childChanged := PruneInvalidColumnFilters(f.Filters, validColumns)
			if 0 < len(children) {
				f.Filters = children
				ret = append(ret, f)
			} else if 0 < len(f.Filters) {
				// 仅当分组原本有子节点却被裁空时才算改动；原本就是空的分组丢弃不算改动，
				// 否则无筛选条件的视图每次渲染都会误判为已改动而触发保存，干扰数据同步判断
				changed = true // 分组变为空被丢弃
			}
			if childChanged {
				changed = true
			}
			continue
		}
		if validColumns[f.Column] {
			ret = append(ret, f)
		} else {
			changed = true
		}
	}
	return
}

func (value *Value) Filter(filter *ViewFilter, attrView *AttributeView, itemID string, rollupFurtherCollections map[string]Collection, cachedAttrViews map[string]*AttributeView) bool {
	if nil == filter || (nil == filter.Value && nil == filter.RelativeDate) {
		return true
	}

	if nil != filter.Value && value.Type != filter.Value.Type {
		// 由于字段类型被用户编辑过导致和过滤规则值类型不匹配，该情况下不过滤
		return true
	}

	if "" == filter.Qualifier {
		switch filter.Operator {
		case FilterOperatorIsEmpty:
			return value.IsEmpty()
		case FilterOperatorIsNotEmpty:
			return !value.IsEmpty()
		}
	}

	// 单独处理汇总
	if nil != value.Rollup && KeyTypeRollup == value.Type && nil != filter.Value && KeyTypeRollup == filter.Value.Type && nil != filter.Value.Rollup {
		key, _ := attrView.GetKey(value.KeyID)
		if nil == key {
			return false
		}

		relKey, _ := attrView.GetKey(key.Rollup.RelationKeyID)
		if nil == relKey {
			return false
		}

		relVal := attrView.GetValue(relKey.ID, itemID)
		if nil == relVal || nil == relVal.Relation {
			return false
		}

		destAv := cachedAttrViews[relKey.Relation.AvID]
		if nil == destAv {
			destAv, _ = ParseAttributeView(relKey.Relation.AvID)
			if nil != destAv {
				cachedAttrViews[relKey.Relation.AvID] = destAv
			}
		}
		if nil == destAv {
			return false
		}

		destKey, _ := destAv.GetKey(key.Rollup.KeyID)
		if nil == destKey {
			return false
		}

		value.Rollup.BuildContents(destAv.KeyValues, destKey, relVal, key.Rollup.Calc, rollupFurtherCollections[key.ID])

		switch filter.Qualifier {
		case FilterQuantifierUndefined, FilterQuantifierAny:
			if FilterOperatorIsEmpty == filter.Operator {
				if 1 > len(value.Rollup.Contents) {
					return true
				}

				if len(value.Rollup.Contents) < len(relVal.Relation.Contents) { // 说明汇总的目标字段存在空值
					return true
				}

				for _, c := range value.Rollup.Contents {
					if v := c.GetValByType(c.Type); nil == v || reflect.ValueOf(v).IsNil() {
						return true
					}
				}
				return false
			} else if FilterOperatorIsNotEmpty == filter.Operator {
				if 1 > len(value.Rollup.Contents) {
					return false
				}

				for _, c := range value.Rollup.Contents {
					if v := c.GetValByType(c.Type); nil != v && !reflect.ValueOf(v).IsNil() {
						return true
					}
				}
				return false
			}

			if 1 > len(filter.Value.Rollup.Contents) {
				return true
			}

			if v := filter.Value.GetValByType(filter.Value.Rollup.Contents[0].Type); nil == v || reflect.ValueOf(v).IsNil() {
				return true
			}

			for _, content := range value.Rollup.Contents {
				if content.filter(filter.Value.Rollup.Contents[0], filter.RelativeDate, filter.RelativeDate2, filter.Operator) {
					return true
				}
			}
		case FilterQuantifierAll:
			if FilterOperatorIsEmpty == filter.Operator {
				if 1 > len(value.Rollup.Contents) {
					return true
				}

				if len(value.Rollup.Contents) < len(relVal.Relation.Contents) {
					return false
				}

				for _, c := range value.Rollup.Contents {
					if v := c.GetValByType(c.Type); nil != v && !reflect.ValueOf(v).IsNil() {
						return false
					}
				}
				return true
			} else if FilterOperatorIsNotEmpty == filter.Operator {
				if 1 > len(value.Rollup.Contents) {
					return false
				}

				if len(value.Rollup.Contents) < len(relVal.Relation.Contents) {
					return false
				}

				for _, c := range value.Rollup.Contents {
					if v := c.GetValByType(c.Type); nil == v || reflect.ValueOf(v).IsNil() {
						return false
					}
				}
				return true
			}

			if 1 > len(filter.Value.Rollup.Contents) {
				return true
			}

			if v := filter.Value.GetValByType(filter.Value.Rollup.Contents[0].Type); nil == v || reflect.ValueOf(v).IsNil() {
				return true
			}

			for _, content := range value.Rollup.Contents {
				if !content.filter(filter.Value.Rollup.Contents[0], filter.RelativeDate, filter.RelativeDate2, filter.Operator) {
					return false
				}
			}
			return true
		case FilterQuantifierNone:
			if FilterOperatorIsEmpty == filter.Operator {
				if 1 > len(value.Rollup.Contents) {
					return false
				}

				if len(value.Rollup.Contents) < len(relVal.Relation.Contents) {
					return true
				}

				for _, c := range value.Rollup.Contents {
					if v := c.GetValByType(c.Type); nil == v || reflect.ValueOf(v).IsNil() {
						return false
					}
				}
				return true
			} else if FilterOperatorIsNotEmpty == filter.Operator {
				if 1 > len(value.Rollup.Contents) {
					return true
				}

				for _, c := range value.Rollup.Contents {
					if v := c.GetValByType(c.Type); nil != v && !reflect.ValueOf(v).IsNil() {
						return false
					}
				}
				return true
			}

			if 1 > len(filter.Value.Rollup.Contents) {
				return true
			}

			if v := filter.Value.GetValByType(filter.Value.Rollup.Contents[0].Type); nil == v || reflect.ValueOf(v).IsNil() {
				return true
			}

			for _, content := range value.Rollup.Contents {
				if content.filter(filter.Value.Rollup.Contents[0], filter.RelativeDate, filter.RelativeDate2, filter.Operator) {
					return false
				}
			}
			return true
		}
	}

	// 单独处理关联
	if nil != value.Relation && KeyTypeRelation == value.Type && nil != filter.Value && KeyTypeRelation == filter.Value.Type && nil != filter.Value.Relation {
		if 1 > len(filter.Value.Relation.BlockIDs) {
			return true
		}

		for _, relationValue := range value.Relation.Contents {
			filterValue := &Value{Type: KeyTypeBlock, Block: &ValueBlock{Content: filter.Value.Relation.BlockIDs[0]}}

			switch filter.Operator {
			case FilterOperatorContains:
				if relationValue.filter(filterValue, filter.RelativeDate, filter.RelativeDate2, filter.Operator) {
					return true
				}
			case FilterOperatorDoesNotContain:
				ret := relationValue.filter(filterValue, filter.RelativeDate, filter.RelativeDate2, filter.Operator)
				if !ret {
					return false
				}
			default:
				if relationValue.filter(filterValue, filter.RelativeDate, filter.RelativeDate2, filter.Operator) {
					return true
				}
			}
		}

		switch filter.Operator {
		case FilterOperatorContains:
			return false
		case FilterOperatorDoesNotContain:
			return true
		default:
			return false
		}
	}

	// 单独处理资源
	if nil != value.MAsset && KeyTypeMAsset == value.Type && nil != filter.Value && KeyTypeMAsset == filter.Value.Type {
		key, _ := attrView.GetKey(value.KeyID)
		if nil == key {
			return false
		}

		var filterContent string
		if 1 <= len(filter.Value.MAsset) {
			filterContent = filter.Value.MAsset[0].Content
		}

		switch filter.Qualifier {
		case FilterQuantifierUndefined, FilterQuantifierAny:
			if FilterOperatorIsEmpty == filter.Operator {
				if 1 > len(value.MAsset) {
					return true
				}

				for _, asset := range value.MAsset {
					if "" == strings.TrimSpace(asset.Name) && "" == strings.TrimSpace(asset.Content) {
						return true
					}
				}
				return false
			} else if FilterOperatorIsNotEmpty == filter.Operator {
				if 1 > len(value.MAsset) {
					return false
				}

				for _, asset := range value.MAsset {
					if "" != strings.TrimSpace(asset.Name) || "" != strings.TrimSpace(asset.Content) {
						return true
					}
				}
				return false
			}

			if nil == filter.Value || 1 > len(filter.Value.MAsset) {
				return true
			}

			for _, asset := range value.MAsset {
				switch asset.Type {
				case AssetTypeFile:
					if filterTextContent(filter.Operator, asset.Name, filterContent) ||
						filterTextContent(filter.Operator, asset.Content, filterContent) {
						return true
					}
				case AssetTypeImage:
					if filterTextContent(filter.Operator, asset.Content, filterContent) {
						return true
					}
				}
			}
		case FilterQuantifierAll:
			if FilterOperatorIsEmpty == filter.Operator {
				if 1 > len(value.MAsset) {
					return true
				}

				for _, asset := range value.MAsset {
					if "" != strings.TrimSpace(asset.Name) || "" != strings.TrimSpace(asset.Content) {
						return false
					}
				}
				return true
			} else if FilterOperatorIsNotEmpty == filter.Operator {
				if 1 > len(value.MAsset) {
					return false
				}

				for _, asset := range value.MAsset {
					if "" == strings.TrimSpace(asset.Name) && "" == strings.TrimSpace(asset.Content) {
						return false
					}
				}
				return true
			}

			if nil == filter.Value || 1 > len(filter.Value.MAsset) {
				return true
			}

			for _, asset := range value.MAsset {
				switch asset.Type {
				case AssetTypeFile:
					if !filterTextContent(filter.Operator, asset.Name, filterContent) &&
						!filterTextContent(filter.Operator, asset.Content, filterContent) {
						return false
					}
				case AssetTypeImage:
					if !filterTextContent(filter.Operator, asset.Content, filterContent) {
						return false
					}
				}
			}
			return true
		case FilterQuantifierNone:
			if FilterOperatorIsEmpty == filter.Operator {
				if 1 > len(value.MAsset) {
					return false
				}

				for _, asset := range value.MAsset {
					if "" == strings.TrimSpace(asset.Name) && "" == strings.TrimSpace(asset.Content) {
						return false
					}
				}
				return true
			} else if FilterOperatorIsNotEmpty == filter.Operator {
				if 1 > len(value.MAsset) {
					return true
				}

				for _, asset := range value.MAsset {
					if "" != strings.TrimSpace(asset.Name) || "" != strings.TrimSpace(asset.Content) {
						return false
					}
				}
				return true
			}

			if nil == filter.Value || 1 > len(filter.Value.MAsset) {
				return true
			}

			for _, asset := range value.MAsset {
				switch asset.Type {
				case AssetTypeFile:
					if filterTextContent(filter.Operator, asset.Name, filterContent) {
						return false
					}
					if filterTextContent(filter.Operator, asset.Content, filterContent) {
						return false
					}
				case AssetTypeImage:
					if filterTextContent(filter.Operator, asset.Content, filterContent) {
						return false
					}
				}
			}
			return true
		}
	}
	return value.filter(filter.Value, filter.RelativeDate, filter.RelativeDate2, filter.Operator)
}

func (value *Value) filter(other *Value, relativeDate, relativeDate2 *RelativeDate, operator FilterOperator) bool {
	switch operator {
	case FilterOperatorIsEmpty:
		return value.IsEmpty()
	case FilterOperatorIsNotEmpty:
		return !value.IsEmpty()
	}

	switch value.Type {
	case KeyTypeBlock:
		if nil != value.Block && nil != other && nil != other.Block {
			return filterTextContent(operator, value.Block.Content, other.Block.Content)
		}
	case KeyTypeText:
		if nil != value.Text && nil != other && nil != other.Text {
			return filterTextContent(operator, value.Text.Content, other.Text.Content)
		}
	case KeyTypeNumber:
		if nil != value.Number && nil != other && nil != other.Number {
			if !other.Number.IsNotEmpty {
				return true
			}

			switch operator {
			case FilterOperatorIsEqual:
				return value.Number.Content == other.Number.Content && value.Number.IsNotEmpty == other.Number.IsNotEmpty
			case FilterOperatorIsNotEqual:
				return value.Number.Content != other.Number.Content || value.Number.IsNotEmpty != other.Number.IsNotEmpty
			case FilterOperatorIsGreater:
				return value.Number.Content > other.Number.Content
			case FilterOperatorIsGreaterOrEqual:
				return value.Number.Content >= other.Number.Content
			case FilterOperatorIsLess:
				return value.Number.Content < other.Number.Content
			case FilterOperatorIsLessOrEqual:
				return value.Number.Content <= other.Number.Content
			}
		}
	case KeyTypeDate:
		if nil != value.Date && nil != other && nil != other.Date && nil == relativeDate && !other.Date.IsNotEmpty {
			return true
		}

		if nil != value.Date {
			if !value.Date.IsNotEmpty {
				// 空值不进行比较，直接排除
				// Database date filter excludes empty values https://github.com/siyuan-note/siyuan/issues/11061
				return false
			}

			if nil != relativeDate { // 使用相对时间比较
				// 非 Is between 时前端不会下发 relativeDate2，为 nil 时复用第一段作为安全默认，避免空指针
				secondRelativeDate := relativeDate2
				if nil == secondRelativeDate {
					secondRelativeDate = relativeDate
				}
				relativeTimeStart, relativeTimeEnd := calcRelativeTimeRegion(relativeDate.Count, relativeDate.Unit, relativeDate.Direction)
				relativeTimeStart2, relativeTimeEnd2 := calcRelativeTimeRegion(secondRelativeDate.Count, secondRelativeDate.Unit, secondRelativeDate.Direction)
				return filterRelativeTime(value.Date.Content, value.Date.IsNotEmpty, operator, relativeTimeStart, relativeTimeEnd, relativeDate.Direction, relativeTimeStart2, relativeTimeEnd2, secondRelativeDate.Direction)
			}
			// 使用具体时间比较
			if nil == other.Date {
				return true
			}
			return filterTime(value.Date.Content, value.Date.IsNotEmpty, other.Date.Content, other.Date.Content2, operator)
		}
	case KeyTypeCreated:
		if nil != value.Created {
			if nil != relativeDate { // 使用相对时间比较
				// 非 Is between 时前端不会下发 relativeDate2，为 nil 时复用第一段作为安全默认，避免空指针
				secondRelativeDate := relativeDate2
				if nil == secondRelativeDate {
					secondRelativeDate = relativeDate
				}
				relativeTimeStart, relativeTimeEnd := calcRelativeTimeRegion(relativeDate.Count, relativeDate.Unit, relativeDate.Direction)
				relativeTimeStart2, relativeTimeEnd2 := calcRelativeTimeRegion(secondRelativeDate.Count, secondRelativeDate.Unit, secondRelativeDate.Direction)
				return filterRelativeTime(value.Created.Content, true, operator, relativeTimeStart, relativeTimeEnd, relativeDate.Direction, relativeTimeStart2, relativeTimeEnd2, secondRelativeDate.Direction)
			}
			// 使用具体时间比较
			if nil == other.Created {
				return true
			}
			return filterTime(value.Created.Content, value.Created.IsNotEmpty, other.Created.Content, other.Created.Content2, operator)
		}
	case KeyTypeUpdated:
		if nil != value.Updated {
			if nil != relativeDate { // 使用相对时间比较
				// 非 Is between 时前端不会下发 relativeDate2，为 nil 时复用第一段作为安全默认，避免空指针
				secondRelativeDate := relativeDate2
				if nil == secondRelativeDate {
					secondRelativeDate = relativeDate
				}
				relativeTimeStart, relativeTimeEnd := calcRelativeTimeRegion(relativeDate.Count, relativeDate.Unit, relativeDate.Direction)
				relativeTimeStart2, relativeTimeEnd2 := calcRelativeTimeRegion(secondRelativeDate.Count, secondRelativeDate.Unit, secondRelativeDate.Direction)
				return filterRelativeTime(value.Updated.Content, true, operator, relativeTimeStart, relativeTimeEnd, relativeDate.Direction, relativeTimeStart2, relativeTimeEnd2, secondRelativeDate.Direction)
			}
			// 使用具体时间比较
			if nil == other.Updated {
				return true
			}

			return filterTime(value.Updated.Content, value.Updated.IsNotEmpty, other.Updated.Content, other.Updated.Content2, operator)
		}
	case KeyTypeSelect, KeyTypeMSelect:
		if nil != value.MSelect {
			if 1 > len(other.MSelect) {
				return true
			}

			switch operator {
			case FilterOperatorIsEqual, FilterOperatorContains:
				contains := false
				for _, v := range value.MSelect {
					for _, v2 := range other.MSelect {
						if v.Content == v2.Content {
							contains = true
							break
						}
					}
				}
				return contains
			case FilterOperatorIsNotEqual, FilterOperatorDoesNotContain:
				contains := false
				for _, v := range value.MSelect {
					for _, v2 := range other.MSelect {
						if v.Content == v2.Content {
							contains = true
							break
						}
					}
				}
				return !contains
			}
		}
	case KeyTypeURL:
		if nil != value.URL && nil != other && nil != other.URL {
			return filterTextContent(operator, value.URL.Content, other.URL.Content)
		}
	case KeyTypeEmail:
		if nil != value.Email && nil != other && nil != other.Email {
			return filterTextContent(operator, value.Email.Content, other.Email.Content)
		}
	case KeyTypePhone:
		if nil != value.Phone && nil != other && nil != other.Phone {
			return filterTextContent(operator, value.Phone.Content, other.Phone.Content)
		}
	case KeyTypeMAsset:
		if nil != value.MAsset && nil != other && nil != other.MAsset && 0 < len(value.MAsset) && 0 < len(other.MAsset) {
			switch operator {
			case FilterOperatorIsEqual, FilterOperatorContains:
				contains := false
				for _, v := range value.MAsset {
					for _, v2 := range other.MAsset {
						if v.Content == v2.Content {
							contains = true
							break
						}
					}
				}
				return contains
			case FilterOperatorIsNotEqual, FilterOperatorDoesNotContain:
				contains := false
				for _, v := range value.MAsset {
					for _, v2 := range other.MAsset {
						if v.Content == v2.Content {
							contains = true
							break
						}
					}
				}
				return !contains
			}
		}
	case KeyTypeTemplate:
		if nil != value.Template && nil != other && nil != other.Template {
			switch operator {
			case FilterOperatorIsEqual:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return value.Template.Content == other.Template.Content
			case FilterOperatorIsNotEqual:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return value.Template.Content != other.Template.Content
			case FilterOperatorIsGreater:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return value.Template.Content > other.Template.Content
			case FilterOperatorIsGreaterOrEqual:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return value.Template.Content >= other.Template.Content
			case FilterOperatorIsLess:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return value.Template.Content < other.Template.Content
			case FilterOperatorIsLessOrEqual:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return value.Template.Content <= other.Template.Content
			case FilterOperatorContains:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return strings.Contains(value.Template.Content, other.Template.Content)
			case FilterOperatorDoesNotContain:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return !strings.Contains(value.Template.Content, other.Template.Content)
			case FilterOperatorStartsWith:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return strings.HasPrefix(value.Template.Content, other.Template.Content)
			case FilterOperatorEndsWith:
				if "" == strings.TrimSpace(other.Template.Content) {
					return true
				}
				return strings.HasSuffix(value.Template.Content, other.Template.Content)
			}
		}
	case KeyTypeCheckbox:
		if nil != value.Checkbox {
			switch operator {
			case FilterOperatorIsTrue, FilterOperatorIsEqual:
				if nil != other && nil != other.Checkbox {
					return value.Checkbox.Checked == other.Checkbox.Checked
				}
				return value.Checkbox.Checked
			case FilterOperatorIsFalse:
				return !value.Checkbox.Checked
			case FilterOperatorIsNotEqual:
				if nil != other && nil != other.Checkbox {
					return value.Checkbox.Checked != other.Checkbox.Checked
				}
				return !value.Checkbox.Checked
			}
		}
	case KeyTypeRelation: // 过滤汇总字段，并且汇总目标是关联字段时才会进入该分支
		if nil != value.Relation && 0 < len(value.Relation.Contents) && nil != value.Relation.Contents[0].Block &&
			nil != other && nil != other.Relation && 0 < len(other.Relation.BlockIDs) {
			filterValue := &Value{Type: KeyTypeBlock, Block: &ValueBlock{Content: other.Relation.BlockIDs[0]}}
			return filterTextContent(operator, value.Relation.Contents[0].Block.Content, filterValue.Block.Content)
		}
	}
	return false
}

func filterTextContent(operator FilterOperator, valueContent, otherValueContent string) bool {
	switch operator {
	case FilterOperatorIsEqual:
		if "" == strings.TrimSpace(otherValueContent) {
			return true
		}
		if util.SearchCaseSensitive {
			return valueContent == otherValueContent
		}
		return strings.EqualFold(valueContent, otherValueContent)
	case FilterOperatorIsNotEqual:
		if "" == strings.TrimSpace(otherValueContent) {
			return true
		}
		if util.SearchCaseSensitive {
			return valueContent != otherValueContent
		}
		return !strings.EqualFold(valueContent, otherValueContent)
	case FilterOperatorContains:
		if "" == strings.TrimSpace(otherValueContent) {
			return true
		}
		if util.SearchCaseSensitive {
			return strings.Contains(valueContent, otherValueContent)
		}
		return strings.Contains(strings.ToLower(valueContent), strings.ToLower(otherValueContent))
	case FilterOperatorDoesNotContain:
		if "" == strings.TrimSpace(otherValueContent) {
			return true
		}
		if util.SearchCaseSensitive {
			return !strings.Contains(valueContent, otherValueContent)
		}
		return !strings.Contains(strings.ToLower(valueContent), strings.ToLower(otherValueContent))
	case FilterOperatorStartsWith:
		if "" == strings.TrimSpace(otherValueContent) {
			return true
		}
		if util.SearchCaseSensitive {
			return strings.HasPrefix(valueContent, otherValueContent)
		}
		return strings.HasPrefix(strings.ToLower(valueContent), strings.ToLower(otherValueContent))
	case FilterOperatorEndsWith:
		if "" == strings.TrimSpace(otherValueContent) {
			return true
		}
		if util.SearchCaseSensitive {
			return strings.HasSuffix(valueContent, otherValueContent)
		}
		return strings.HasSuffix(strings.ToLower(valueContent), strings.ToLower(otherValueContent))
	case FilterOperatorIsEmpty:
		return "" == strings.TrimSpace(valueContent)
	case FilterOperatorIsNotEmpty:
		return "" != strings.TrimSpace(valueContent)
	}
	return false
}

func filterRelativeTime(valueMills int64, valueIsNotEmpty bool, operator FilterOperator, otherValueStart, otherValueEnd time.Time, direction RelativeDateDirection, otherValueStart2, otherValueEnd2 time.Time, direction2 RelativeDateDirection) bool {
	valueTime := time.UnixMilli(valueMills)

	if otherValueStart.After(otherValueStart2) && FilterOperatorIsBetween == operator {
		tmpStart, tmpEnd := otherValueStart2, otherValueEnd2
		otherValueStart2, otherValueEnd2 = otherValueStart, otherValueEnd
		otherValueStart, otherValueEnd = tmpStart, tmpEnd
	}

	switch operator {
	case FilterOperatorIsEqual:
		return (valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)) && (valueTime.Before(otherValueEnd) || valueTime.Equal(otherValueEnd))
	case FilterOperatorIsNotEqual:
		return valueTime.Before(otherValueStart) || valueTime.After(otherValueEnd)
	case FilterOperatorIsGreater:
		return valueTime.After(otherValueEnd)
	case FilterOperatorIsGreaterOrEqual:
		return valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)
	case FilterOperatorIsLess:
		return valueTime.Before(otherValueStart)
	case FilterOperatorIsLessOrEqual:
		return valueTime.Before(otherValueEnd) || valueTime.Equal(otherValueEnd)
	case FilterOperatorIsBetween:
		if RelativeDateDirectionBefore == direction {
			if RelativeDateDirectionBefore == direction2 {
				var leftStart, rightEnd time.Time
				if otherValueStart.Before(otherValueStart2) {
					leftStart = otherValueStart
				} else {
					leftStart = otherValueStart2
				}
				if otherValueEnd.Before(otherValueStart2) {
					rightEnd = otherValueEnd
				} else {
					rightEnd = otherValueStart2
				}
				return (valueTime.After(leftStart) || valueTime.Equal(leftStart)) && (valueTime.Before(rightEnd) || valueTime.Equal(rightEnd))
			} else if RelativeDateDirectionThis == direction2 {
				return ((valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)) && (valueTime.Before(otherValueEnd) || valueTime.Equal(otherValueEnd))) ||
					((valueTime.After(otherValueStart2) || valueTime.Equal(otherValueStart2)) && (valueTime.Before(otherValueEnd2) || valueTime.Equal(otherValueEnd2)))
			} else if RelativeDateDirectionAfter == direction2 {
				var leftStart, rightEnd time.Time
				if otherValueStart.Before(otherValueStart2) {
					leftStart = otherValueStart
				} else {
					leftStart = otherValueStart2
				}
				if otherValueEnd.Before(otherValueEnd2) {
					rightEnd = otherValueEnd2
				} else {
					rightEnd = otherValueEnd
				}
				return (valueTime.After(leftStart) || valueTime.Equal(leftStart)) && (valueTime.Before(rightEnd) || valueTime.Equal(rightEnd))
			}
		} else if RelativeDateDirectionThis == direction {
			return ((valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)) && (valueTime.Before(otherValueEnd) || valueTime.Equal(otherValueEnd))) ||
				((valueTime.After(otherValueStart2) || valueTime.Equal(otherValueStart2)) && (valueTime.Before(otherValueEnd2) || valueTime.Equal(otherValueEnd2)))
		} else if RelativeDateDirectionAfter == direction {
			if RelativeDateDirectionBefore == direction2 {
				var leftStart, rightEnd time.Time
				if otherValueStart.Before(otherValueStart2) {
					leftStart = otherValueStart
				} else {
					leftStart = otherValueStart2
				}
				if otherValueEnd.Before(otherValueEnd2) {
					rightEnd = otherValueEnd2
				} else {
					rightEnd = otherValueEnd
				}
				return (valueTime.After(leftStart) || valueTime.Equal(leftStart)) && (valueTime.Before(rightEnd) || valueTime.Equal(rightEnd))
			} else if RelativeDateDirectionThis == direction2 {
				return ((valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)) && (valueTime.Before(otherValueEnd) || valueTime.Equal(otherValueEnd))) ||
					((valueTime.After(otherValueStart2) || valueTime.Equal(otherValueStart2)) && (valueTime.Before(otherValueEnd2) || valueTime.Equal(otherValueEnd2)))
			} else if RelativeDateDirectionAfter == direction2 {
				var leftStart, rightEnd time.Time
				if otherValueStart.Before(otherValueStart2) {
					leftStart = otherValueStart
				} else {
					leftStart = otherValueStart2
				}
				if otherValueEnd.After(otherValueEnd2) {
					rightEnd = otherValueEnd
				} else {
					rightEnd = otherValueEnd2
				}
				return (valueTime.After(leftStart) || valueTime.Equal(leftStart)) && (valueTime.Before(rightEnd) || valueTime.Equal(rightEnd))
			}
		}
		return false
	case FilterOperatorIsEmpty:
		return !valueIsNotEmpty
	case FilterOperatorIsNotEmpty:
		return valueIsNotEmpty
	}
	return false
}

func filterTime(valueMills int64, valueIsNotEmpty bool, otherValueMills, otherValueMills2 int64, operator FilterOperator) bool {
	valueTime := time.UnixMilli(valueMills)

	if 0 != otherValueMills2 && otherValueMills > otherValueMills2 && FilterOperatorIsBetween == operator {
		tmp := otherValueMills2
		otherValueMills2 = otherValueMills
		otherValueMills = tmp
	}

	otherValueTime := time.UnixMilli(otherValueMills)
	otherValueStart := time.Date(otherValueTime.Year(), otherValueTime.Month(), otherValueTime.Day(), 0, 0, 0, 0, otherValueTime.Location())
	otherValueEnd := time.Date(otherValueTime.Year(), otherValueTime.Month(), otherValueTime.Day(), 23, 59, 59, 999999999, otherValueTime.Location())
	switch operator {
	case FilterOperatorIsEqual:
		return (valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)) && valueTime.Before(otherValueEnd)
	case FilterOperatorIsNotEqual:
		return valueTime.Before(otherValueStart) || valueTime.After(otherValueEnd)
	case FilterOperatorIsGreater:
		return valueTime.After(otherValueEnd) || valueTime.Equal(otherValueEnd)
	case FilterOperatorIsGreaterOrEqual:
		return valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)
	case FilterOperatorIsLess:
		return valueTime.Before(otherValueStart)
	case FilterOperatorIsLessOrEqual:
		return valueTime.Before(otherValueEnd) || valueTime.Equal(otherValueEnd)
	case FilterOperatorIsBetween:
		if 0 == otherValueMills || 0 == otherValueMills2 {
			return true
		}
		otherValueTime2 := time.UnixMilli(otherValueMills2)
		otherValueEnd2 := time.Date(otherValueTime2.Year(), otherValueTime2.Month(), otherValueTime2.Day(), 23, 59, 59, 999999999, otherValueTime2.Location())
		return (valueTime.After(otherValueStart) || valueTime.Equal(otherValueStart)) && (valueTime.Before(otherValueEnd2) || valueTime.Equal(otherValueEnd2))
	case FilterOperatorIsEmpty:
		return !valueIsNotEmpty
	case FilterOperatorIsNotEmpty:
		return valueIsNotEmpty
	}
	return false
}

// 根据 Count、Unit 和 Direction 计算相对当前时间的开始时间和结束时间
func calcRelativeTimeRegion(count int, unit RelativeDateUnit, direction RelativeDateDirection) (start, end time.Time) {
	now := time.Now()
	switch unit {
	case RelativeDateUnitDay:
		switch direction {
		case RelativeDateDirectionBefore:
			// 结束时间：今天的 0 点
			end = time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
			// 开始时间：结束时间减去 count 天
			start = end.AddDate(0, 0, -count)
		case RelativeDateDirectionThis:
			// 开始时间：今天的 0 点
			start = time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
			// 结束时间：今天的 23:59:59.999999999
			end = time.Date(now.Year(), now.Month(), now.Day(), 23, 59, 59, 999999999, now.Location())
		case RelativeDateDirectionAfter:
			// 开始时间：今天的 0 点加上 count 天
			start = time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location()).AddDate(0, 0, count)
			// 结束时间：开始时间的 23:59:59.999999999
			end = time.Date(start.Year(), start.Month(), start.Day(), 23, 59, 59, 999999999, now.Location())
		}
	case RelativeDateUnitWeek:
		weekday := int(now.Weekday())
		if 0 == weekday {
			weekday = 7
		}
		switch direction {
		case RelativeDateDirectionBefore:
			// 结束时间：本周的周一
			end = time.Date(now.Year(), now.Month(), now.Day()-weekday+1, 0, 0, 0, 0, now.Location())
			// 开始时间：结束时间减去 count*7 天
			start = end.AddDate(0, 0, -count*7)
		case RelativeDateDirectionThis:
			// 开始时间：本周的周一
			start = time.Date(now.Year(), now.Month(), now.Day()-weekday+1, 0, 0, 0, 0, now.Location())
			// 结束时间：本周的周日
			end = time.Date(now.Year(), now.Month(), now.Day()-weekday+7, 23, 59, 59, 999999999, now.Location())
		case RelativeDateDirectionAfter:
			// 开始时间：本周的周一加上 count*7 天
			start = time.Date(now.Year(), now.Month(), now.Day()-weekday+1, 0, 0, 0, 0, now.Location()).AddDate(0, 0, count*7)
			// 结束时间：开始时间的周日
			end = time.Date(start.Year(), start.Month(), start.Day()-int(start.Weekday())+7, 23, 59, 59, 999999999, now.Location())
		}
	case RelativeDateUnitMonth:
		switch direction {
		case RelativeDateDirectionBefore:
			// 结束时间：本月的 1 号
			end = time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, now.Location())
			// 开始时间：结束时间减去 count 个月
			start = end.AddDate(0, -count, 0)
		case RelativeDateDirectionThis:
			// 开始时间：本月的 1 号
			start = time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, now.Location())
			// 结束时间：下个月的 1 号减去 1 纳秒
			end = time.Date(now.Year(), now.Month()+1, 1, 0, 0, 0, 0, now.Location()).Add(-time.Nanosecond)
		case RelativeDateDirectionAfter:
			// 开始时间：count 个月后的 1 号
			start = time.Date(now.Year(), now.Month(), 1, 0, 0, 0, 0, now.Location()).AddDate(0, count, 0)
			// 结束时间：开始时间的下个月的 1 号减去 1 纳秒
			end = time.Date(start.Year(), start.Month()+1, 1, 0, 0, 0, 0, now.Location()).Add(-time.Nanosecond)
		}
	case RelativeDateUnitYear:
		switch direction {
		case RelativeDateDirectionBefore:
			// 结束时间：今年的 1 月 1 号
			end = time.Date(now.Year(), 1, 1, 0, 0, 0, 0, now.Location())
			// 开始时间：结束时间减去 count 年
			start = end.AddDate(-count, 0, 0)
		case RelativeDateDirectionThis:
			// 开始时间：今年的 1 月 1 号
			start = time.Date(now.Year(), 1, 1, 0, 0, 0, 0, now.Location())
			// 结束时间：明年的 1 月 1 号减去 1 纳秒
			end = time.Date(now.Year()+1, 1, 1, 0, 0, 0, 0, now.Location()).Add(-time.Nanosecond)
		case RelativeDateDirectionAfter:
			// 开始时间：count 年后的 1 月 1 号
			start = time.Date(now.Year(), 1, 1, 0, 0, 0, 0, now.Location()).AddDate(count, 0, 0)
			// 结束时间：开始时间的 count+1 年的 1 月 1 号减去 1 纳秒
			end = time.Date(start.Year()+1, 1, 1, 0, 0, 0, 0, now.Location()).Add(-time.Nanosecond)
		}
	}
	return
}

// IsValid 判断叶子过滤节点是否可参与「新增行默认值」计算。仅对叶子节点调用；
// 分组节点 filter.Value 为 nil 会返回 false（视为不可参与），调用方应先递归到叶子。
func (filter *ViewFilter) IsValid() bool {
	if nil == filter || nil == filter.Value {
		return false
	}

	if FilterOperatorIsEmpty != filter.Operator && FilterOperatorIsNotEmpty != filter.Operator {
		if filter.Value.IsEmpty() && nil == filter.RelativeDate {
			return false
		}
	}
	return true
}

func (filter *ViewFilter) GetAffectValue(key *Key, addingBlockID string) (ret *Value) {
	if nil != filter.Value {
		if KeyTypeRelation == filter.Value.Type || KeyTypeTemplate == filter.Value.Type || KeyTypeRollup == filter.Value.Type || KeyTypeUpdated == filter.Value.Type || KeyTypeCreated == filter.Value.Type {
			// 所有生成的数据都不设置默认值
			return nil
		}
	}

	if nil == filter.Value {
		return nil
	}

	if FilterOperatorIsEmpty != filter.Operator && FilterOperatorIsNotEmpty != filter.Operator {
		if filter.Value.IsEmpty() && nil == filter.RelativeDate {
			// 在不是过滤空值和非空值的情况下，空值不设置默认值 https://github.com/siyuan-note/siyuan/issues/11297
			return nil
		}
	}

	ret = filter.Value.Clone()
	ret.ID = ast.NewNodeID()
	ret.KeyID = key.ID
	ret.BlockID = addingBlockID
	ret.CreatedAt = util.CurrentTimeMillis()
	ret.UpdatedAt = ret.CreatedAt + 1000

	switch filter.Value.Type {
	case KeyTypeBlock:
		switch filter.Operator {
		case FilterOperatorIsEqual:
			ret.Block = &ValueBlock{Content: filter.Value.Block.Content, Created: ret.CreatedAt, Updated: ret.UpdatedAt}
		case FilterOperatorIsNotEqual:
			ret.Block = &ValueBlock{Content: "", Created: ret.CreatedAt, Updated: ret.UpdatedAt}
		case FilterOperatorContains:
			ret.Block = &ValueBlock{Content: filter.Value.Block.Content, Created: ret.CreatedAt, Updated: ret.UpdatedAt}
		case FilterOperatorDoesNotContain:
			ret.Block = &ValueBlock{Content: "", Created: ret.CreatedAt, Updated: ret.UpdatedAt}
		case FilterOperatorStartsWith:
			ret.Block = &ValueBlock{Content: filter.Value.Block.Content, Created: ret.CreatedAt, Updated: ret.UpdatedAt}
		case FilterOperatorEndsWith:
			ret.Block = &ValueBlock{Content: filter.Value.Block.Content, Created: ret.CreatedAt, Updated: ret.UpdatedAt}
		case FilterOperatorIsEmpty:
			ret.Block = &ValueBlock{Content: "", Created: ret.CreatedAt, Updated: ret.UpdatedAt}
		case FilterOperatorIsNotEmpty:
			return nil
		}
	case KeyTypeText:
		switch filter.Operator {
		case FilterOperatorIsEqual:
			ret.Text = &ValueText{Content: filter.Value.Text.Content}
		case FilterOperatorIsNotEqual:
			ret.Text = &ValueText{Content: ""}
		case FilterOperatorContains:
			ret.Text = &ValueText{Content: filter.Value.Text.Content}
		case FilterOperatorDoesNotContain:
			ret.Text = &ValueText{Content: ""}
		case FilterOperatorStartsWith:
			ret.Text = &ValueText{Content: filter.Value.Text.Content}
		case FilterOperatorEndsWith:
			ret.Text = &ValueText{Content: filter.Value.Text.Content}
		case FilterOperatorIsEmpty:
			ret.Text = &ValueText{Content: ""}
		case FilterOperatorIsNotEmpty:
			return nil
		}
	case KeyTypeNumber:
		switch filter.Operator {
		case FilterOperatorIsEqual:
			ret.Number = &ValueNumber{Content: filter.Value.Number.Content, IsNotEmpty: true}
		case FilterOperatorIsNotEqual:
			ret.Number = &ValueNumber{Content: 0, IsNotEmpty: false}
		case FilterOperatorIsGreater:
			ret.Number = &ValueNumber{Content: filter.Value.Number.Content + 1, IsNotEmpty: true}
		case FilterOperatorIsGreaterOrEqual:
			ret.Number = &ValueNumber{Content: filter.Value.Number.Content, IsNotEmpty: true}
		case FilterOperatorIsLess:
			ret.Number = &ValueNumber{Content: filter.Value.Number.Content - 1, IsNotEmpty: true}
		case FilterOperatorIsLessOrEqual:
			ret.Number = &ValueNumber{Content: filter.Value.Number.Content, IsNotEmpty: true}
		case FilterOperatorIsEmpty:
			ret.Number = &ValueNumber{Content: 0, IsNotEmpty: false}
		case FilterOperatorIsNotEmpty:
			ret.Number = &ValueNumber{Content: 0, IsNotEmpty: true}
		}
	case KeyTypeDate:
		start := time.Now()
		end := start
		if nil != filter.Value.Date {
			start = time.UnixMilli(filter.Value.Date.Content)
			end = time.UnixMilli(filter.Value.Date.Content2)
		}
		if nil != filter.RelativeDate {
			start, end = calcRelativeTimeRegion(filter.RelativeDate.Count, filter.RelativeDate.Unit, filter.RelativeDate.Direction)
		}

		switch filter.Operator {
		case FilterOperatorIsEqual:
			ret.Date = &ValueDate{Content: start.UnixMilli(), IsNotEmpty: true}
		case FilterOperatorIsGreater:
			ret.Date = &ValueDate{Content: end.Add(24 * time.Hour).UnixMilli(), IsNotEmpty: true}
		case FilterOperatorIsGreaterOrEqual:
			ret.Date = &ValueDate{Content: start.UnixMilli(), IsNotEmpty: true}
		case FilterOperatorIsLess:
			ret.Date = &ValueDate{Content: start.Add(-24 * time.Hour).UnixMilli(), IsNotEmpty: true}
		case FilterOperatorIsLessOrEqual:
			ret.Date = &ValueDate{Content: start.UnixMilli(), IsNotEmpty: true}
		case FilterOperatorIsBetween:
			start2, end2 := start, end
			if nil != filter.RelativeDate2 {
				start2, end2 = calcRelativeTimeRegion(filter.RelativeDate2.Count, filter.RelativeDate2.Unit, filter.RelativeDate2.Direction)
				if start.After(start2) {
					tmp := start
					start = start2
					start2 = tmp
				}
				if end.Before(end2) {
					tmp := end
					end = end2
					end2 = tmp
				}
			} else {
				if start.After(end) {
					tmp := start
					start = end
					end = tmp
				}
			}

			now := time.Now()
			if start.Before(now) && now.Before(end) {
				ret.Date = &ValueDate{Content: now.UnixMilli(), IsNotEmpty: true}
				return
			}
			ret.Date = &ValueDate{Content: start.UnixMilli(), IsNotEmpty: true}
		case FilterOperatorIsEmpty:
			ret.Date = &ValueDate{Content: 0, IsNotEmpty: false}
		case FilterOperatorIsNotEmpty:
			ret.Date = &ValueDate{Content: util.CurrentTimeMillis(), IsNotEmpty: true}
		}
	case KeyTypeSelect, KeyTypeMSelect:
		switch filter.Operator {
		case FilterOperatorIsEqual:
			valueSelect := &ValueSelect{Content: "", Color: "1"}
			if 0 < len(key.Options) {
				valueSelect.Color = key.Options[0].Color
			}
			if 0 < len(filter.Value.MSelect) {
				valueSelect.Content = filter.Value.MSelect[0].Content
				valueSelect.Color = filter.Value.MSelect[0].Color
			}
			ret.MSelect = []*ValueSelect{valueSelect}
		case FilterOperatorIsNotEqual:
			return nil
		case FilterOperatorContains:
			if 0 < len(filter.Value.MSelect) {
				ret.MSelect = []*ValueSelect{{Content: filter.Value.MSelect[0].Content, Color: filter.Value.MSelect[0].Color}}
			}
		case FilterOperatorDoesNotContain:
			return nil
		case FilterOperatorIsEmpty:
			ret.MSelect = []*ValueSelect{}
		case FilterOperatorIsNotEmpty:
			if 0 < len(key.Options) {
				ret.MSelect = []*ValueSelect{{Content: key.Options[0].Name, Color: key.Options[0].Color}}
			} else {
				return nil
			}
		}
	case KeyTypeURL:
		switch filter.Operator {
		case FilterOperatorIsEqual:
			ret.URL = &ValueURL{Content: filter.Value.URL.Content}
		case FilterOperatorIsNotEqual:
			ret.URL = &ValueURL{Content: ""}
		case FilterOperatorContains:
			ret.URL = &ValueURL{Content: filter.Value.URL.Content}
		case FilterOperatorDoesNotContain:
			ret.URL = &ValueURL{Content: ""}
		case FilterOperatorStartsWith:
			ret.URL = &ValueURL{Content: filter.Value.URL.Content}
		case FilterOperatorEndsWith:
			ret.URL = &ValueURL{Content: filter.Value.URL.Content}
		case FilterOperatorIsEmpty:
			ret.URL = &ValueURL{Content: ""}
		case FilterOperatorIsNotEmpty:
			return nil
		}
	case KeyTypeEmail:
		switch filter.Operator {
		case FilterOperatorIsEqual:
			ret.Email = &ValueEmail{Content: filter.Value.Email.Content}
		case FilterOperatorIsNotEqual:
			ret.Email = &ValueEmail{Content: ""}
		case FilterOperatorContains:
			ret.Email = &ValueEmail{Content: filter.Value.Email.Content}
		case FilterOperatorDoesNotContain:
			ret.Email = &ValueEmail{Content: ""}
		case FilterOperatorStartsWith:
			ret.Email = &ValueEmail{Content: filter.Value.Email.Content}
		case FilterOperatorEndsWith:
			ret.Email = &ValueEmail{Content: filter.Value.Email.Content}
		case FilterOperatorIsEmpty:
			ret.Email = &ValueEmail{Content: ""}
		case FilterOperatorIsNotEmpty:
			return nil
		}
	case KeyTypePhone:
		switch filter.Operator {
		case FilterOperatorIsEqual:
			ret.Phone = &ValuePhone{Content: filter.Value.Phone.Content}
		case FilterOperatorIsNotEqual:
			ret.Phone = &ValuePhone{Content: ""}
		case FilterOperatorContains:
			ret.Phone = &ValuePhone{Content: filter.Value.Phone.Content}
		case FilterOperatorDoesNotContain:
			ret.Phone = &ValuePhone{Content: ""}
		case FilterOperatorStartsWith:
			ret.Phone = &ValuePhone{Content: filter.Value.Phone.Content}
		case FilterOperatorEndsWith:
			ret.Phone = &ValuePhone{Content: filter.Value.Phone.Content}
		case FilterOperatorIsEmpty:
			ret.Phone = &ValuePhone{Content: ""}
		case FilterOperatorIsNotEmpty:
			return nil
		}
	case KeyTypeMAsset:
		switch filter.Operator {
		case FilterOperatorIsEqual, FilterOperatorContains:
			if 0 < len(filter.Value.MAsset) {
				ret.MAsset = []*ValueAsset{{Type: filter.Value.MAsset[0].Type, Name: filter.Value.MAsset[0].Name, Content: filter.Value.MAsset[0].Content}}
			}
		case FilterOperatorIsNotEqual, FilterOperatorDoesNotContain:
		case FilterOperatorIsEmpty:
			ret.MAsset = []*ValueAsset{}
		case FilterOperatorIsNotEmpty:
		}
	case KeyTypeCheckbox:
		switch filter.Operator {
		case FilterOperatorIsTrue:
			ret.Checkbox = &ValueCheckbox{Checked: true}
		case FilterOperatorIsFalse:
			ret.Checkbox = &ValueCheckbox{Checked: false}
		}
	case KeyTypeRelation:
		switch filter.Operator {
		case FilterOperatorContains:
			if 0 < len(filter.Value.Relation.Contents) {
				ret.Relation = &ValueRelation{Contents: filter.Value.Relation.Contents}
			}
		case FilterOperatorDoesNotContain:
		case FilterOperatorIsEmpty:
			ret.Relation = &ValueRelation{Contents: []*Value{}}
		case FilterOperatorIsNotEmpty:
		}
	}
	return
}