feat: 回填三个Excel关联PDD正式价格 (#226)

2026-08-14 16:36:42 +08:00
parent 619394ac7d
commit 7055519321
4 changed files with 784 additions and 0 deletions
@@ -0,0 +1,86 @@
+package repository
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+)
+
+// PDDPriceBackfillTarget 是一次性 Excel 价格回填需要的 PDD 原值。
+// 原值同时用于 dry-run、乐观锁和本机回退备份。
+type PDDPriceBackfillTarget struct {
+	GoodsID       string
+	SKUsJSON      string
+	CollectStatus string
+	CollectMsg    *string
+	ArtifactRef   *string
+	CollectedAt   *string
+	UpdatedAt     string
+}
+
+// ListShopPDDPriceBackfillTargets 读取指定蝦皮店铺当前关联的活动 PDD 商品。
+// 同一个 PDD 被多个蝦皮商品关联时只返回一份原值。
+func ListShopPDDPriceBackfillTargets(q Execer, shopName string) ([]PDDPriceBackfillTarget, error) {
+	rows, err := q.Query(`
+		SELECT DISTINCT pp.goods_id, COALESCE(pp.skus_json, ''), pp.collect_status,
+		       pp.collect_msg, pp.artifact_ref, pp.collected_at, pp.updated_at
+		  FROM shopee_products sp
+		  JOIN pdd_products pp ON pp.goods_id = sp.pdd_goods_id
+		 WHERE sp.deleted_at IS NULL AND pp.deleted_at IS NULL
+		   AND sp.shopee_shop_name = ?
+		 ORDER BY pp.goods_id`, strings.TrimSpace(shopName))
+	if err != nil {
+		return nil, fmt.Errorf("读取店铺 PDD 价格回填目标失败: %w", err)
+	}
+	defer rows.Close()
+
+	var targets []PDDPriceBackfillTarget
+	for rows.Next() {
+		var target PDDPriceBackfillTarget
+		var collectMsg, artifactRef, collectedAt sql.NullString
+		if err := rows.Scan(&target.GoodsID, &target.SKUsJSON, &target.CollectStatus,
+			&collectMsg, &artifactRef, &collectedAt, &target.UpdatedAt); err != nil {
+			return nil, fmt.Errorf("解析 PDD 价格回填目标失败: %w", err)
+		}
+		target.CollectMsg = nullableStringPointer(collectMsg)
+		target.ArtifactRef = nullableStringPointer(artifactRef)
+		target.CollectedAt = nullableStringPointer(collectedAt)
+		targets = append(targets, target)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, fmt.Errorf("遍历 PDD 价格回填目标失败: %w", err)
+	}
+	return targets, nil
+}
+
+func nullableStringPointer(value sql.NullString) *string {
+	if !value.Valid {
+		return nil
+	}
+	result := value.String
+	return &result
+}
+
+// ReplacePDDPricesAndMarkCollected 使用完整原值作乐观锁，写入价格并标记已采集。
+// 返回 false 表示 dry-run 后目标发生变化，调用方必须回滚整批，不能部分提交。
+func ReplacePDDPricesAndMarkCollected(q Execer, target PDDPriceBackfillTarget,
+	newSKUsJSON, collectedAt, updatedAt string) (bool, error) {
+	result, err := q.Exec(`
+		UPDATE pdd_products
+		   SET skus_json = ?, collect_status = 'collected',
+		       collect_msg = NULL, artifact_ref = NULL,
+		       collected_at = ?, updated_at = ?
+		 WHERE goods_id = ? AND deleted_at IS NULL
+		   AND COALESCE(skus_json, '') = ?
+		   AND collect_status = ? AND updated_at = ?`,
+		newSKUsJSON, collectedAt, updatedAt, target.GoodsID,
+		target.SKUsJSON, target.CollectStatus, target.UpdatedAt)
+	if err != nil {
+		return false, fmt.Errorf("更新 PDD 商品 %s 的正式价格失败: %w", target.GoodsID, err)
+	}
+	rows, err := result.RowsAffected()
+	if err != nil {
+		return false, fmt.Errorf("读取 PDD 商品 %s 的价格回填结果失败: %w", target.GoodsID, err)
+	}
+	return rows == 1, nil
+}