package product

import (
	"context"

	"tyapi-server/internal/application/product/dto/commands"
	"tyapi-server/internal/application/product/dto/responses"
	"tyapi-server/internal/domains/product/entities"
	"tyapi-server/internal/domains/product/services"
)

// DocumentationApplicationServiceInterface 文档应用服务接口
type DocumentationApplicationServiceInterface interface {
	// CreateDocumentation 创建文档
	CreateDocumentation(ctx context.Context, cmd *commands.CreateDocumentationCommand) (*responses.DocumentationResponse, error)

	// UpdateDocumentation 更新文档
	UpdateDocumentation(ctx context.Context, id string, cmd *commands.UpdateDocumentationCommand) (*responses.DocumentationResponse, error)

	// GetDocumentation 获取文档
	GetDocumentation(ctx context.Context, id string) (*responses.DocumentationResponse, error)

	// GetDocumentationByProductID 通过产品ID获取文档
	GetDocumentationByProductID(ctx context.Context, productID string) (*responses.DocumentationResponse, error)

	// DeleteDocumentation 删除文档
	DeleteDocumentation(ctx context.Context, id string) error

	// GetDocumentationsByProductIDs 批量获取文档
	GetDocumentationsByProductIDs(ctx context.Context, productIDs []string) ([]responses.DocumentationResponse, error)
}

// DocumentationApplicationService 文档应用服务
type DocumentationApplicationService struct {
	docService *services.ProductDocumentationService
}

// NewDocumentationApplicationService 创建文档应用服务实例
func NewDocumentationApplicationService(docService *services.ProductDocumentationService) *DocumentationApplicationService {
	return &DocumentationApplicationService{
		docService: docService,
	}
}

// CreateDocumentation 创建文档
func (s *DocumentationApplicationService) CreateDocumentation(ctx context.Context, cmd *commands.CreateDocumentationCommand) (*responses.DocumentationResponse, error) {
	// 创建文档实体
	doc := &entities.ProductDocumentation{
		RequestURL:      cmd.RequestURL,
		RequestMethod:   cmd.RequestMethod,
		BasicInfo:       cmd.BasicInfo,
		RequestParams:   cmd.RequestParams,
		ResponseFields:  cmd.ResponseFields,
		ResponseExample: cmd.ResponseExample,
		ErrorCodes:      cmd.ErrorCodes,
	}

	// 调用领域服务创建文档
	err := s.docService.CreateDocumentation(ctx, cmd.ProductID, doc)
	if err != nil {
		return nil, err
	}

	// 返回响应
	resp := responses.NewDocumentationResponse(doc)
	return &resp, nil
}

// UpdateDocumentation 更新文档
func (s *DocumentationApplicationService) UpdateDocumentation(ctx context.Context, id string, cmd *commands.UpdateDocumentationCommand) (*responses.DocumentationResponse, error) {
	// 调用领域服务更新文档
	err := s.docService.UpdateDocumentation(ctx, id,
		cmd.RequestURL,
		cmd.RequestMethod,
		cmd.BasicInfo,
		cmd.RequestParams,
		cmd.ResponseFields,
		cmd.ResponseExample,
		cmd.ErrorCodes,
	)
	if err != nil {
		return nil, err
	}

	// 获取更新后的文档
	doc, err := s.docService.GetDocumentation(ctx, id)
	if err != nil {
		return nil, err
	}

	// 返回响应
	resp := responses.NewDocumentationResponse(doc)
	return &resp, nil
}

// GetDocumentation 获取文档
func (s *DocumentationApplicationService) GetDocumentation(ctx context.Context, id string) (*responses.DocumentationResponse, error) {
	doc, err := s.docService.GetDocumentation(ctx, id)
	if err != nil {
		return nil, err
	}

	// 返回响应
	resp := responses.NewDocumentationResponse(doc)
	return &resp, nil
}

// GetDocumentationByProductID 通过产品ID获取文档
func (s *DocumentationApplicationService) GetDocumentationByProductID(ctx context.Context, productID string) (*responses.DocumentationResponse, error) {
	doc, err := s.docService.GetDocumentationByProductID(ctx, productID)
	if err != nil {
		return nil, err
	}

	// 返回响应
	resp := responses.NewDocumentationResponse(doc)
	return &resp, nil
}

// DeleteDocumentation 删除文档
func (s *DocumentationApplicationService) DeleteDocumentation(ctx context.Context, id string) error {
	return s.docService.DeleteDocumentation(ctx, id)
}

// GetDocumentationsByProductIDs 批量获取文档
func (s *DocumentationApplicationService) GetDocumentationsByProductIDs(ctx context.Context, productIDs []string) ([]responses.DocumentationResponse, error) {
	docs, err := s.docService.GetDocumentationsByProductIDs(ctx, productIDs)
	if err != nil {
		return nil, err
	}

	var docResponses []responses.DocumentationResponse
	for _, doc := range docs {
		docResponses = append(docResponses, responses.NewDocumentationResponse(doc))
	}

	return docResponses, nil
}