80 lines
2.4 KiB
Go
80 lines
2.4 KiB
Go
package service
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import (
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"context"
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"time"
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"fashionapi/internal/dto"
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"fashionapi/internal/model"
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"fashionapi/internal/repository"
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)
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// HistoryService 浏览历史业务接口。所有方法均要求调用方已通过中间件解析出 userID。
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type HistoryService interface {
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// Record 记录一次浏览：点开某篇文章详情时上报其对外编码串 id（upsert：同文章刷新时间）。
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Record(ctx context.Context, userID uint32, req dto.HistoryAdd) error
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// ListPaged 分页取当前用户历史（服务端分页）。
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ListPaged(ctx context.Context, userID uint32, page, perPage int) ([]dto.HistoryItem, int64, error)
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// Remove 删除某条历史。
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Remove(ctx context.Context, userID uint32, targetUID string) error
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// Clear 清空当前用户全部历史。
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Clear(ctx context.Context, userID uint32) error
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}
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type historyService struct {
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hist repository.HistoryRepository
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}
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// NewHistoryService 创建浏览历史服务。
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func NewHistoryService(hist repository.HistoryRepository) HistoryService {
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return &historyService{hist: hist}
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}
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func (s *historyService) Record(ctx context.Context, userID uint32, req dto.HistoryAdd) error {
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if req.TargetUID == "" {
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return badRequest("target_uid required")
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}
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row := &model.History{
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UserID: userID,
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TargetUID: req.TargetUID,
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ViewedAt: uint32(time.Now().Unix()),
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}
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if err := s.hist.Upsert(ctx, row); err != nil {
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return internalErr(err.Error())
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}
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return nil
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}
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func (s *historyService) ListPaged(ctx context.Context, userID uint32, page, perPage int) ([]dto.HistoryItem, int64, error) {
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rows, err := s.hist.ListPaged(ctx, userID, page, perPage)
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if err != nil {
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return nil, 0, internalErr(err.Error())
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}
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total, err := s.hist.CountByUser(ctx, userID)
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if err != nil {
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return nil, 0, internalErr(err.Error())
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}
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out := make([]dto.HistoryItem, 0, len(rows))
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for _, r := range rows {
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out = append(out, dto.HistoryItem{ID: r.TargetUID, ViewedAt: r.ViewedAt})
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}
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return out, total, nil
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}
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func (s *historyService) Remove(ctx context.Context, userID uint32, targetUID string) error {
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if targetUID == "" {
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return badRequest("target_uid required")
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}
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if err := s.hist.Remove(ctx, userID, targetUID); err != nil {
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return internalErr(err.Error())
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}
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return nil
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}
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func (s *historyService) Clear(ctx context.Context, userID uint32) error {
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if err := s.hist.Clear(ctx, userID); err != nil {
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return internalErr(err.Error())
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}
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return nil
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}
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