结构调整

Service/EmailServices/EmailParse/EmailParseFormCCSVC.cs

@@ -0,0 +1,169 @@
+using HtmlAgilityPack;
+
+namespace Service.EmailParseServices;
+
+public class EmailParseFormCCSVC(
+    ILogger<EmailParseFormCCSVC> logger,
+    IOpenAiService openAiService
+) : EmailParseServicesBase(logger, openAiService)
+{
+    public override bool CanParse(string from, string subject, string body)
+    {
+        if (!from.Contains("ccsvc@message.cmbchina.com"))
+        {
+            return false;
+        }
+
+        if (!subject.Contains("每日信用管家"))
+        {
+            return false;
+        }
+
+        // 必须包含HTML标签
+        if (!Regex.IsMatch(body, "<.*?>"))
+        {
+            return false;
+        }
+
+        return true;
+    }
+
+    public override async Task<(
+        string card,
+        string reason,
+        decimal amount,
+        decimal balance,
+        TransactionType type,
+        DateTime? occurredAt
+    )[]> ParseEmailContentAsync(string emailContent)
+    {
+        var doc = new HtmlDocument();
+        doc.LoadHtml(emailContent);
+
+        var result = new List<(string, string, decimal, decimal, TransactionType, DateTime?)>();
+
+        // 1. Get Date
+        var dateNode = doc.DocumentNode.SelectSingleNode("//font[contains(text(), '您的消费明细如下')]");
+        if (dateNode == null)
+        {
+            logger.LogWarning("Date node not found");
+            return Array.Empty<(string, string, decimal, decimal, TransactionType, DateTime?)>();
+        }
+
+        var dateText = dateNode.InnerText.Trim();
+        // "2025/12/21&nbsp;您的消费明细如下："
+        var dateMatch = Regex.Match(dateText, @"\d{4}/\d{1,2}/\d{1,2}");
+        if (!dateMatch.Success || !DateTime.TryParse(dateMatch.Value, out var date))
+        {
+            logger.LogWarning("Failed to parse date from: {DateText}", dateText);
+            return Array.Empty<(string, string, decimal, decimal, TransactionType, DateTime?)>();
+        }
+
+        // 2. Get Balance (Available Limit)
+        decimal balance = 0;
+        // Find "可用额度" label
+        var limitLabelNode = doc.DocumentNode.SelectSingleNode("//font[contains(text(), '可用额度')]");
+        if (limitLabelNode != null)
+        {
+            // Go up to TR
+            var tr = limitLabelNode.Ancestors("tr").FirstOrDefault();
+            if (tr != null)
+            {
+                var prevTr = tr.PreviousSibling;
+                while (prevTr != null && prevTr.Name != "tr") prevTr = prevTr.PreviousSibling;
+
+                if (prevTr != null)
+                {
+                    var balanceNode = prevTr.SelectSingleNode(".//font[contains(text(), '￥')]");
+                    if (balanceNode != null)
+                    {
+                        var balanceStr = balanceNode.InnerText.Replace("￥", "").Replace(",", "").Trim();
+                        decimal.TryParse(balanceStr, out balance);
+                    }
+                }
+            }
+        }
+
+        // 3. Get Transactions
+        var transactionNodes = doc.DocumentNode.SelectNodes("//span[@id='fixBand4']");
+        if (transactionNodes != null)
+        {
+            foreach (var node in transactionNodes)
+            {
+                try
+                {
+                    // Time
+                    var timeNode = node.SelectSingleNode(".//span[@id='fixBand5']//font");
+                    var timeText = timeNode?.InnerText.Trim(); // "10:13:43"
+
+                    DateTime? occurredAt = date;
+                    if (!string.IsNullOrEmpty(timeText) && DateTime.TryParse($"{date:yyyy-MM-dd} {timeText}", out var dt))
+                    {
+                        occurredAt = dt;
+                    }
+
+                    // Info Block
+                    var infoNode = node.SelectSingleNode(".//span[@id='fixBand12']");
+                    if (infoNode == null) continue;
+
+                    // Amount
+                    var amountNode = infoNode.SelectSingleNode(".//font[contains(text(), 'CNY')]");
+                    var amountText = amountNode?.InnerText.Replace("CNY", "").Replace("&nbsp;", "").Trim();
+                    if (!decimal.TryParse(amountText, out var amount))
+                    {
+                        continue;
+                    }
+
+                    // Description
+                    var descNode = infoNode.SelectSingleNode(".//tr[2]//font");
+                    var descText = descNode?.InnerText ?? "";
+                    // Replace &nbsp; and non-breaking space (\u00A0) with normal space
+                    descText = descText.Replace("&nbsp;", " ");
+                    descText = HtmlEntity.DeEntitize(descText).Replace((char)160, ' ').Trim();
+
+                    // Parse Description: "尾号4390 消费 财付通-luckincoffee瑞幸咖啡"
+                    var parts = descText.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
+
+                    string card = "";
+                    string reason = descText;
+                    TransactionType type = TransactionType.Expense;
+
+                    if (parts.Length > 0 && parts[0].StartsWith("尾号"))
+                    {
+                        card = parts[0].Replace("尾号", "");
+                    }
+
+                    if (parts.Length > 1)
+                    {
+                        var typeStr = parts[1];
+                        type = DetermineTransactionType(typeStr, reason, amount);
+                    }
+
+                    if (parts.Length > 2)
+                    {
+                        reason = string.Join(" ", parts.Skip(2));
+                    }
+
+                    // 招商信用卡特殊，消费金额为正数，退款为负数
+                    if(amount > 0)
+                    {
+                        type = TransactionType.Expense;
+                    }
+                    else
+                    {
+                        type = TransactionType.Income;
+                        amount = Math.Abs(amount);
+                    }
+
+                    result.Add((card, reason, amount, balance, type, occurredAt));
+                }
+                catch (Exception ex)
+                {
+                    logger.LogError(ex, "Error parsing transaction node");
+                }
+            }
+        }
+
+        return await Task.FromResult(result.ToArray());
+    }
+}