Files
2026-10-26 16:28:14 +08:00

326 lines
8.5 KiB
Go

package srv_contentexcel
import (
"context"
"fmt"
"io"
"math/rand"
"strconv"
"strings"
"time"
"videoweb/pub/common/srvdef"
"videoweb/pub/models/videoinformationmod"
"videoweb/pub/pubdef"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo/options"
)
const queryBatchSize = 500
var importAddedTimeStart = time.Date(2025, 1, 1, 0, 0, 0, 0, time.Local)
func randomImportAddedTime(r *rand.Rand) time.Time {
now := time.Now()
if !now.After(importAddedTimeStart) {
return now
}
if r == nil {
r = rand.New(rand.NewSource(time.Now().UnixNano()))
}
delta := now.UnixNano() - importAddedTimeStart.UnixNano()
if delta <= 0 {
return now
}
return importAddedTimeStart.Add(time.Duration(r.Int63n(delta + 1)))
}
// Export 按条件导出视频 SEO 字段为 Excel。
func Export(ctx context.Context, req *ExportReq) ([]byte, string, *srvdef.SrvErr) {
contentType, serr := normalizeContentType(req.Type)
if serr != nil {
return nil, "", serr
}
dateFilter, serr := buildTimeRangeFilter(req.StartTime, req.EndTime)
if serr != nil {
return nil, "", serr
}
ids, serr := normalizeExportIDs(req.Ids)
if serr != nil {
return nil, "", serr
}
var rows []ContentRow
var err error
switch contentType {
case ContentTypeVideo:
rows, err = queryVideoRows(ctx, dateFilter, req.Status, ids)
}
if err != nil {
return nil, "", srvdef.New(srvdef.ExcelExportErr, err.Error())
}
data, err := buildWorkbook(rows)
if err != nil {
return nil, "", srvdef.New(srvdef.ExcelExportErr, err.Error())
}
filename := fmt.Sprintf("%s_content_%s.xlsx", contentType, time.Now().Format("20060102150405"))
return data, filename, nil
}
// Import 读取 Excel 并按 ID 批量更新标题、描述、关键词。
func Import(ctx context.Context, contentType string, reader io.Reader) (*ImportResult, *srvdef.SrvErr) {
normalizedType, serr := normalizeContentType(contentType)
if serr != nil {
return nil, serr
}
data, err := io.ReadAll(reader)
if err != nil {
return nil, srvdef.New(srvdef.ErrParamError, "读取上传文件失败")
}
rows, err := parseWorkbook(data)
if err != nil {
return nil, srvdef.New(srvdef.ErrParamError, err.Error())
}
result := &ImportResult{Total: len(rows)}
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for _, row := range rows {
var updateErr *srvdef.SrvErr
switch normalizedType {
case ContentTypeVideo:
updateErr = updateVideoRow(ctx, row, r)
}
if updateErr != nil {
result.Failed++
result.Errors = append(result.Errors, fmt.Sprintf("ID=%d: %s", row.ID, updateErr.Tips))
continue
}
result.Success++
}
return result, nil
}
func normalizeContentType(raw string) (string, *srvdef.SrvErr) {
switch stringsTrimLower(raw) {
case ContentTypeVideo:
return stringsTrimLower(raw), nil
default:
return "", srvdef.New(srvdef.ErrParamError, "type 仅支持 video")
}
}
func stringsTrimLower(s string) string {
return strings.ToLower(strings.TrimSpace(s))
}
func buildTimeRangeFilter(startTime, endTime string) (bson.M, *srvdef.SrvErr) {
filter := bson.M{}
start, err := parseOptionalTime(startTime, false)
if err != nil {
return nil, srvdef.New(srvdef.ErrParamError, "startTime 格式错误,支持 2006-01-02 或 2006-01-02 15:04:05")
}
end, err := parseOptionalTime(endTime, true)
if err != nil {
return nil, srvdef.New(srvdef.ErrParamError, "endTime 格式错误,支持 2006-01-02 或 2006-01-02 15:04:05")
}
if start != nil && end != nil && start.After(*end) {
return nil, srvdef.New(srvdef.ErrParamError, "startTime 不能晚于 endTime")
}
if start != nil {
filter["$gte"] = *start
}
if end != nil {
filter["$lte"] = *end
}
if len(filter) == 0 {
return nil, nil
}
return filter, nil
}
func parseOptionalTime(raw string, endOfDay bool) (*time.Time, error) {
raw = strings.TrimSpace(raw)
if raw == "" {
return nil, nil
}
layouts := []string{
"2006-01-02 15:04:05",
"2006-01-02T15:04:05",
time.RFC3339,
}
for _, layout := range layouts {
if t, err := time.ParseInLocation(layout, raw, time.Local); err == nil {
return &t, nil
}
}
if t, err := time.ParseInLocation("2006-01-02", raw, time.Local); err == nil {
if endOfDay {
end := time.Date(t.Year(), t.Month(), t.Day(), 23, 59, 59, 0, t.Location())
return &end, nil
}
return &t, nil
}
return nil, fmt.Errorf("invalid time: %s", raw)
}
func applyTimeFilter(base bson.M, field string, rangeFilter bson.M) bson.M {
if len(rangeFilter) == 0 {
return base
}
base[field] = rangeFilter
return base
}
func applyStatusFilter(base bson.M, field string, status *pubdef.InformationStatus) bson.M {
if status == nil {
return base
}
base[field] = *status
return base
}
func applyIDsFilter(base bson.M, field string, ids []int64) bson.M {
if len(ids) == 0 {
return base
}
base[field] = bson.M{"$in": ids}
return base
}
// ParseExportIDs 解析导出接口的 ids 查询参数,支持 ids=1&ids=2 或 ids=1,2,3。
func ParseExportIDs(raw []string) ([]int64, *srvdef.SrvErr) {
if len(raw) == 0 {
return nil, nil
}
ids := make([]int64, 0, len(raw))
seen := make(map[int64]struct{}, len(raw))
for _, item := range raw {
item = strings.TrimSpace(item)
if item == "" {
continue
}
for _, part := range strings.Split(item, ",") {
part = strings.TrimSpace(part)
if part == "" {
continue
}
id, err := strconv.ParseInt(part, 10, 64)
if err != nil || id <= 0 {
return nil, srvdef.New(srvdef.ErrParamError, "ids 格式错误,需为正整数")
}
if _, ok := seen[id]; ok {
continue
}
seen[id] = struct{}{}
ids = append(ids, id)
}
}
return ids, nil
}
func normalizeExportIDs(raw []int64) ([]int64, *srvdef.SrvErr) {
if len(raw) == 0 {
return nil, nil
}
ids := make([]int64, 0, len(raw))
seen := make(map[int64]struct{}, len(raw))
for _, id := range raw {
if id <= 0 {
return nil, srvdef.New(srvdef.ErrParamError, "ids 格式错误,需为正整数")
}
if _, ok := seen[id]; ok {
continue
}
seen[id] = struct{}{}
ids = append(ids, id)
}
return ids, nil
}
func queryVideoRows(ctx context.Context, dateFilter bson.M, status *pubdef.InformationStatus, ids []int64) ([]ContentRow, error) {
filter := applyIDsFilter(applyStatusFilter(applyTimeFilter(bson.M{
videoinformationmod.FN.VideoInformation.MediaType: bson.M{
"$in": []videoinformationmod.MediaType{
videoinformationmod.MediaType_Video,
videoinformationmod.MediaType_AV,
},
},
}, videoinformationmod.FN.VideoInformation.CreatedAt, dateFilter),
videoinformationmod.FN.VideoInformation.Status, status),
videoinformationmod.FN.VideoInformation.Id, ids)
return queryRowsInBatches(ctx, func(skip int64) ([]ContentRow, bool, error) {
opt := options.Find().
SetSkip(skip).
SetLimit(queryBatchSize).
SetSort(bson.M{videoinformationmod.FN.VideoInformation.Id: 1}).
SetProjection(bson.M{
videoinformationmod.FN.VideoInformation.Id: 1,
videoinformationmod.FN.VideoInformation.Title: 1,
videoinformationmod.FN.VideoInformation.Desc: 1,
videoinformationmod.FN.VideoInformation.Keyworld: 1,
})
list, serr := videoinformationmod.FindManyVideoInformations(ctx, filter, opt)
if serr != nil {
return nil, false, fmt.Errorf("%s", serr.Tips)
}
rows := make([]ContentRow, 0, len(list))
for _, item := range list {
if item == nil {
continue
}
rows = append(rows, ContentRow{
ID: item.Id,
Title: item.Title,
Desc: item.Desc,
Keyworld: item.Keyworld,
})
}
return rows, int64(len(list)) == queryBatchSize, nil
})
}
func queryRowsInBatches(ctx context.Context, fetch func(skip int64) ([]ContentRow, bool, error)) ([]ContentRow, error) {
all := make([]ContentRow, 0)
var skip int64
for {
rows, hasMore, err := fetch(skip)
if err != nil {
return nil, err
}
all = append(all, rows...)
if !hasMore {
break
}
skip += queryBatchSize
}
return all, nil
}
func updateVideoRow(ctx context.Context, row ContentRow, r *rand.Rand) *srvdef.SrvErr {
now := time.Now()
addedTime := randomImportAddedTime(r)
update := bson.M{
"$set": bson.M{
videoinformationmod.FN.VideoInformation.Title: row.Title,
videoinformationmod.FN.VideoInformation.Desc: row.Desc,
videoinformationmod.FN.VideoInformation.Keyworld: row.Keyworld,
videoinformationmod.FN.VideoInformation.Status: pubdef.InformationStatusVerifyOK,
videoinformationmod.FN.VideoInformation.AddedTime: addedTime,
videoinformationmod.FN.VideoInformation.UpdatedAt: now,
},
}
return videoinformationmod.UpdateOneVideoInformation(ctx, bson.M{
videoinformationmod.FN.VideoInformation.Id: row.ID,
}, update)
}