110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
package app
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import (
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"caatsm/internal/adapter"
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"caatsm/internal/adapter/parser"
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"context"
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"fmt"
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"strings"
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"time"
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"go.uber.org/zap"
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)
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// MessageProcessor handles message processing
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type MessageProcessor struct {
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parser parser.Parser
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repository adapter.Repository
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publisher adapter.Publisher
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logger *zap.Logger
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}
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// NewMessageProcessor creates a new message processor
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func NewMessageProcessor(
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parser parser.Parser,
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repository adapter.Repository,
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publisher adapter.Publisher,
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logger *zap.Logger,
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) *MessageProcessor {
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return &MessageProcessor{
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parser: parser,
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repository: repository,
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publisher: publisher,
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logger: logger,
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}
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}
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// Handle processes a message
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func (p *MessageProcessor) Handle(ctx context.Context, raw []byte, msgID string) error {
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if len(raw) == 0 {
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return Permanent(fmt.Errorf("empty message"))
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}
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receivedAt := time.Now()
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parsed := p.parser.Parse(string(raw))
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if parsed == nil {
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return Permanent(fmt.Errorf("parser returned nil"))
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}
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if msgID != "" {
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if parsed.Comments == "" {
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parsed.Comments = fmt.Sprintf("nats_msg_id=%s", msgID)
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} else if !strings.Contains(parsed.Comments, "nats_msg_id=") {
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parsed.Comments = fmt.Sprintf("%s; nats_msg_id=%s", parsed.Comments, msgID)
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}
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}
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if parsed.ReceivedAt.IsZero() {
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parsed.ReceivedAt = receivedAt
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}
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if parsed.ParsedAt.IsZero() {
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parsed.ParsedAt = time.Now()
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}
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// Log parsing result
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if !parsed.Parsed {
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p.logger.Warn("Message not parsed",
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zap.String("msg_id", msgID),
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zap.String("message_id", parsed.MessageID),
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zap.String("category", parsed.Category),
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zap.String("content_preview", truncateContent(parsed.Content, 256)),
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)
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} else {
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p.logger.Info("Message parsed successfully",
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zap.String("msg_id", msgID),
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zap.String("message_id", parsed.MessageID),
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zap.String("category", parsed.Category),
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zap.Time("received_at", parsed.ReceivedAt),
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zap.Time("parsed_at", parsed.ParsedAt),
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)
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}
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// Insert into database
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if err := p.repository.InsertOne(ctx, parsed); err != nil {
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return fmt.Errorf("failed to insert message: %w", err)
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}
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// Publish parsed message
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if err := p.publisher.Publish(parsed); err != nil {
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// Log error but don't fail the entire operation
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p.logger.Error("Failed to publish message",
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zap.String("msg_id", msgID),
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zap.Error(err),
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)
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// Mark as permanent so the consumer will ack instead of retrying
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return Permanent(fmt.Errorf("failed to publish message: %w", err))
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}
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return nil
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}
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func truncateContent(content string, limit int) string {
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if limit <= 0 || len(content) <= limit {
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return content
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}
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if limit <= 3 {
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return content[:limit]
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}
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return content[:limit-3] + "..."
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}
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