tyapi-server/internal/domains/product/services/product_documentation_service.go

package services

import (
	"context"
	"errors"
	"fmt"

	"tyapi-server/internal/domains/product/entities"
	"tyapi-server/internal/domains/product/repositories"
)

// ProductDocumentationService 产品文档服务
type ProductDocumentationService struct {
	docRepo     repositories.ProductDocumentationRepository
	productRepo repositories.ProductRepository
}

// NewProductDocumentationService 创建文档服务实例
func NewProductDocumentationService(
	docRepo repositories.ProductDocumentationRepository,
	productRepo repositories.ProductRepository,
) *ProductDocumentationService {
	return &ProductDocumentationService{
		docRepo:     docRepo,
		productRepo: productRepo,
	}
}

// CreateDocumentation 创建文档
func (s *ProductDocumentationService) CreateDocumentation(ctx context.Context, productID string, doc *entities.ProductDocumentation) error {
	// 验证产品是否存在
	product, err := s.productRepo.GetByID(ctx, productID)
	if err != nil {
		return fmt.Errorf("产品不存在: %w", err)
	}
	if !product.IsValid() {
		return errors.New("产品已禁用或删除")
	}

	// 检查是否已存在文档
	existingDoc, err := s.docRepo.FindByProductID(ctx, productID)
	if err == nil && existingDoc != nil {
		return errors.New("该产品已存在文档")
	}

	// 设置产品ID
	doc.ProductID = productID

	// 验证文档完整性
	if err := doc.Validate(); err != nil {
		return fmt.Errorf("文档验证失败: %w", err)
	}

	// 创建文档
	return s.docRepo.Create(ctx, doc)
}

// UpdateDocumentation 更新文档
func (s *ProductDocumentationService) UpdateDocumentation(ctx context.Context, id string, requestURL, requestMethod, basicInfo, requestParams, responseFields, responseExample, errorCodes string) error {
	// 查找现有文档
	doc, err := s.docRepo.FindByID(ctx, id)
	if err != nil {
		return fmt.Errorf("文档不存在: %w", err)
	}

	// 使用实体的更新方法
	err = doc.UpdateDocumentation(requestURL, requestMethod, basicInfo, requestParams, responseFields, responseExample, errorCodes)
	if err != nil {
		return fmt.Errorf("文档更新失败: %w", err)
	}

	// 保存更新
	return s.docRepo.Update(ctx, doc)
}

// GetDocumentation 获取文档
func (s *ProductDocumentationService) GetDocumentation(ctx context.Context, id string) (*entities.ProductDocumentation, error) {
	return s.docRepo.FindByID(ctx, id)
}

// GetDocumentationByProductID 通过产品ID获取文档
func (s *ProductDocumentationService) GetDocumentationByProductID(ctx context.Context, productID string) (*entities.ProductDocumentation, error) {
	return s.docRepo.FindByProductID(ctx, productID)
}

// DeleteDocumentation 删除文档
func (s *ProductDocumentationService) DeleteDocumentation(ctx context.Context, id string) error {
	_, err := s.docRepo.FindByID(ctx, id)
	if err != nil {
		return fmt.Errorf("文档不存在: %w", err)
	}

	return s.docRepo.Delete(ctx, id)
}

// GetDocumentationWithProduct 获取文档及其关联的产品信息
func (s *ProductDocumentationService) GetDocumentationWithProduct(ctx context.Context, id string) (*entities.ProductDocumentation, error) {
	doc, err := s.docRepo.FindByID(ctx, id)
	if err != nil {
		return nil, err
	}

	// 加载产品信息
	product, err := s.productRepo.GetByID(ctx, doc.ProductID)
	if err != nil {
		return nil, fmt.Errorf("获取产品信息失败: %w", err)
	}

	doc.Product = &product
	return doc, nil
}

// GetDocumentationsByProductIDs 批量获取文档
func (s *ProductDocumentationService) GetDocumentationsByProductIDs(ctx context.Context, productIDs []string) ([]*entities.ProductDocumentation, error) {
	return s.docRepo.FindByProductIDs(ctx, productIDs)
}