115 lines
3.0 KiB
Go
115 lines
3.0 KiB
Go
package product
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import (
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"context"
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"fmt"
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coach_client "gitea.timerzz.com/kedaya_haitao/coach-spider/pkg/coach-client"
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"gitea.timerzz.com/kedaya_haitao/common/model/product"
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"github.com/samber/lo"
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"gorm.io/gorm"
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"gorm.io/gorm/clause"
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"log/slog"
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"time"
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)
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type Controller struct {
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ctx context.Context
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client *coach_client.Client
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updateTime time.Time // 上次抓取时间
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db *gorm.DB
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Option
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}
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func NewController(client *coach_client.Client, db *gorm.DB) *Controller {
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ctl := &Controller{
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client: client,
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db: db,
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}
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ctl.AutoMigrate()
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ctl.LoadOption()
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return ctl
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}
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func (c *Controller) AutoMigrate() {
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if err := c.db.AutoMigrate(&productv1.Product{}, &productv1.HistoryPrice{}, &Option{}); err != nil {
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panic(err)
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}
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}
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func (c *Controller) Run(ctx context.Context) {
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c.ctx = ctx
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ticker := time.NewTicker(c.Interval)
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if err := c.Crawl(); err != nil {
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slog.Error(err.Error())
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} else {
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slog.Info("抓取信息成功")
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c.updateTime = time.Now()
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}
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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if err := c.Crawl(); err != nil {
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slog.Error(err.Error())
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} else {
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slog.Info("抓取信息成功")
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c.updateTime = time.Now()
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}
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}
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}
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}
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func (c *Controller) Crawl() error {
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slog.Info("开始抓取信息")
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for page, totalPage := 1, -1; page <= totalPage || totalPage == -1; page++ {
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resp, err := c.client.ViewAllBags(c.ctx, page)
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if err != nil {
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return fmt.Errorf("访问coach第%d页失败: %w", page, err)
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}
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totalPage = resp.PageData.TotalPages
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if err = c.saveRespData(resp.PageData.Products); err != nil {
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return fmt.Errorf("保存第%d页数据失败: %w", page, err)
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}
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}
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return nil
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}
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func (c *Controller) saveRespData(list []coach_client.Product) error {
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var products = make([]productv1.Product, 0, len(list))
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for _, resp := range list {
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for _, color := range resp.Colors {
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price, _ := lo.Find(resp.VariantsOnSale, func(item coach_client.Variant) bool {
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return item.Id == color.VgId
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})
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// 获取已经存的运费
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var saveFreight float64
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c.db.Model(&productv1.Product{}).Where("pid = ?", color.VgId).Select("freight").Scan(&saveFreight)
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if saveFreight > 0 {
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c.Freight = saveFreight
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}
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products = append(products, productv1.Product{
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Name: resp.Name,
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Pid: color.VgId,
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Color: color.Text,
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Link: fmt.Sprintf("%s/%s", "https://www.coachoutlet.com", color.Url),
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Image: color.Media.Thumbnail.Src,
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Orderable: color.Orderable,
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DiscPercent: int(price.Price.MarkdownDiscPercent),
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USPrice: price.Price.Sales.Value,
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Freight: c.Freight,
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ExchangeRate: c.ExchangeRate,
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})
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}
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}
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// 去重
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products = lo.UniqBy(products, func(p productv1.Product) string {
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return p.Pid
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})
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return c.db.Clauses(clause.OnConflict{
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Columns: []clause.Column{{Name: "pid"}},
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DoUpdates: clause.AssignmentColumns([]string{"name", "color", "link", "orderable", "us_price", "cny_price", "cal_mark", "rate", "price_status", "disc_percent"}),
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}).Create(products).Error
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}
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