103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
package service
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import (
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"database/sql"
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"encoding/json"
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"fmt"
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"strings"
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"time"
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"unicode/utf8"
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"cmautobuy/admin/model"
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"cmautobuy/admin/repository"
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)
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const maxShopeeSKUFieldRunes = 500
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// UpdateShopeeSKUManual 保存采购员对现有蝦皮规格的人工修正。
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// 只修改颜色、尺码和建议说明；规格原文、身份字段和既有采购数据保持不变。
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func UpdateShopeeSKUManual(db *sql.DB, actor *model.User, goodsID, skuRecordID,
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color, size, advice string, now time.Time) error {
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if actor == nil || actor.Status != model.UserActive {
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return ErrUnauthenticated
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}
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goodsID = strings.TrimSpace(goodsID)
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skuRecordID = strings.TrimSpace(skuRecordID)
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color = strings.TrimSpace(color)
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size = strings.TrimSpace(size)
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advice = strings.TrimSpace(advice)
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if goodsID == "" {
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return invalidFieldInput("shopee_goods_id", "蝦皮商品编号不能为空")
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}
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if skuRecordID == "" {
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return invalidFieldInput("sku_record_id", "蝦皮规格记录编号不能为空")
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}
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if color == "" {
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return invalidFieldInput("color", "颜色不能为空")
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}
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if size == "" {
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return invalidFieldInput("size", "尺码不能为空")
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}
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for _, field := range []struct {
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name, label, value string
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}{{"color", "颜色", color}, {"size", "尺码", size}, {"advice", "建议说明", advice}} {
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if utf8.RuneCountInString(field.value) > maxShopeeSKUFieldRunes {
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return invalidFieldInput(field.name, "%s最多 500 个字符", field.label)
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}
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}
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tx, err := db.Begin()
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if err != nil {
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return err
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}
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defer tx.Rollback()
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state, err := repository.GetShopeeSKUManualState(tx, skuRecordID)
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if err != nil {
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return err
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}
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if state == nil || state.GoodsID != goodsID {
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return invalidFieldInput("sku_record_id", "蝦皮规格不存在或不属于当前商品，请刷新页面后重试")
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}
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sources, err := decodeShopeeSKUProvenance(state.FieldSources)
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if err != nil {
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return fmt.Errorf("读取蝦皮规格字段来源失败: %w", err)
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}
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observedTimes, err := decodeShopeeSKUProvenance(state.FieldObservedAt)
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if err != nil {
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return fmt.Errorf("读取蝦皮规格字段时间失败: %w", err)
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}
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at := now.UTC().Format(model.TimeLayout)
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for _, field := range []string{"color", "size", "advice"} {
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sources[field] = "manual"
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observedTimes[field] = at
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}
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sourcesJSON, err := json.Marshal(sources)
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if err != nil {
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return err
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}
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timesJSON, err := json.Marshal(observedTimes)
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if err != nil {
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return err
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}
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updated, err := repository.UpdateShopeeSKUManualFields(tx, skuRecordID, goodsID,
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color, size, advice, string(sourcesJSON), string(timesJSON), at)
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if err != nil {
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return err
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}
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if !updated {
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return invalidFieldInput("sku_record_id", "蝦皮规格已发生变化，请刷新页面后重试")
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}
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return tx.Commit()
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}
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func decodeShopeeSKUProvenance(raw string) (map[string]string, error) {
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values := map[string]string{}
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if strings.TrimSpace(raw) == "" {
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return values, nil
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}
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if err := json.Unmarshal([]byte(raw), &values); err != nil {
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return nil, err
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}
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return values, nil
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}
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