package rag

import (
	"fmt"

	"cs-ai-agent/internal/models"
	"cs-ai-agent/internal/pkg/enums"
	"cs-ai-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) {
	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) {
	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
}