feat: add document and FAQ loading methods to streamline indexing logic

internal/ai/rag/index_flow.go

@@ -0,0 +1,52 @@
+package rag
+
+import (
+	"fmt"
+
+	"cs-agent/internal/models"
+	"cs-agent/internal/pkg/enums"
+	"cs-agent/internal/repositories"
+
+	"github.com/mlogclub/simple/sqls"
+)
+
+func (s *index) loadDocumentByID(documentID int64) (*models.KnowledgeDocument, error) {
+	document := repositories.KnowledgeDocumentRepository.Get(sqls.DB(), documentID)
+	if document == nil {
+		return nil, fmt.Errorf("document not found: %d", documentID)
+	}
+	return document, nil
+}
+
+func (s *index) loadFAQByID(faqID int64) (*models.KnowledgeFAQ, error) {
+	faq := repositories.KnowledgeFAQRepository.Get(sqls.DB(), faqID)
+	if faq == nil {
+		return nil, fmt.Errorf("faq not found: %d", faqID)
+	}
+	return faq, nil
+}
+
+func (s *index) loadDocumentKnowledgeBase(document *models.KnowledgeDocument) (*models.KnowledgeBase, error) {
+	if document == nil {
+		return nil, fmt.Errorf("document is nil")
+	}
+	knowledgeBase := repositories.KnowledgeBaseRepository.Get(sqls.DB(), document.KnowledgeBaseID)
+	if knowledgeBase == nil {
+		return nil, fmt.Errorf("knowledge base not found: %d", document.KnowledgeBaseID)
+	}
+	return knowledgeBase, nil
+}
+
+func (s *index) loadFAQKnowledgeBase(faq *models.KnowledgeFAQ) (*models.KnowledgeBase, error) {
+	if faq == nil {
+		return nil, fmt.Errorf("faq is nil")
+	}
+	knowledgeBase := repositories.KnowledgeBaseRepository.Get(sqls.DB(), faq.KnowledgeBaseID)
+	if knowledgeBase == nil {
+		return nil, fmt.Errorf("knowledge base not found: %d", faq.KnowledgeBaseID)
+	}
+	if knowledgeBase.KnowledgeType != string(enums.KnowledgeBaseTypeFAQ) {
+		return nil, fmt.Errorf("knowledge base %d is not faq type", knowledgeBase.ID)
+	}
+	return knowledgeBase, nil
+}