package service

import (
	"fmt"
	"github.com/linmadan/egglib-go/core/application"
	"github.com/linmadan/egglib-go/utils/tool_funs"
	"gitlab.fjmaimaimai.com/allied-creation/allied-creation-manufacture/pkg/application/factory"
	"gitlab.fjmaimaimai.com/allied-creation/allied-creation-manufacture/pkg/application/product/command"
	"gitlab.fjmaimaimai.com/allied-creation/allied-creation-manufacture/pkg/application/product/query"
	"gitlab.fjmaimaimai.com/allied-creation/allied-creation-manufacture/pkg/domain"
)

// 产品服务
type ProductService struct {
}

// 创建产品服务
func (productService *ProductService) CreateProduct(createProductCommand *command.CreateProductCommand) (interface{}, error) {
	if err := createProductCommand.ValidateCommand(); err != nil {
		return nil, application.ThrowError(application.ARG_ERROR, err.Error())
	}
	transactionContext, err := factory.CreateTransactionContext(nil)
	if err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	if err := transactionContext.StartTransaction(); err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	defer func() {
		transactionContext.RollbackTransaction()
	}()
	newProduct := &domain.Product{
		CompanyId:       createProductCommand.CompanyId,
		OrgId:           createProductCommand.OrgId,
		ProductCode:     createProductCommand.ProductCode,
		ProductName:     createProductCommand.ProductName,
		ProductCategory: createProductCommand.ProductCategory,
		//ProductSpec:     createProductCommand.ProductSpec,
	}
	var productRepository domain.ProductRepository
	if value, err := factory.CreateProductRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		productRepository = value
	}
	if product, err := productRepository.Save(newProduct); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		if err := transactionContext.CommitTransaction(); err != nil {
			return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
		}
		return product, nil
	}
}

// 返回产品服务
func (productService *ProductService) GetProduct(getProductQuery *query.GetProductQuery) (interface{}, error) {
	if err := getProductQuery.ValidateQuery(); err != nil {
		return nil, application.ThrowError(application.ARG_ERROR, err.Error())
	}
	transactionContext, err := factory.CreateTransactionContext(nil)
	if err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	if err := transactionContext.StartTransaction(); err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	defer func() {
		transactionContext.RollbackTransaction()
	}()
	var productRepository domain.ProductRepository
	if value, err := factory.CreateProductRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		productRepository = value
	}
	product, err := productRepository.FindOne(map[string]interface{}{"productId": getProductQuery.ProductId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if product == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(getProductQuery.ProductId)))
	} else {
		if err := transactionContext.CommitTransaction(); err != nil {
			return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
		}
		return product, nil
	}
}

// 返回产品服务列表
func (productService *ProductService) ListProduct(listProductQuery *query.ListProductQuery) (interface{}, error) {
	if err := listProductQuery.ValidateQuery(); err != nil {
		return nil, application.ThrowError(application.ARG_ERROR, err.Error())
	}
	transactionContext, err := factory.CreateTransactionContext(nil)
	if err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	if err := transactionContext.StartTransaction(); err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	defer func() {
		transactionContext.RollbackTransaction()
	}()
	var productRepository domain.ProductRepository
	if value, err := factory.CreateProductRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		productRepository = value
	}
	if count, products, err := productRepository.Find(tool_funs.SimpleStructToMap(listProductQuery)); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		if err := transactionContext.CommitTransaction(); err != nil {
			return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
		}
		return map[string]interface{}{
			"count":    count,
			"products": products,
		}, nil
	}
}

// 移除产品服务
func (productService *ProductService) RemoveProduct(removeProductCommand *command.RemoveProductCommand) (interface{}, error) {
	if err := removeProductCommand.ValidateCommand(); err != nil {
		return nil, application.ThrowError(application.ARG_ERROR, err.Error())
	}
	transactionContext, err := factory.CreateTransactionContext(nil)
	if err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	if err := transactionContext.StartTransaction(); err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	defer func() {
		transactionContext.RollbackTransaction()
	}()
	var productRepository domain.ProductRepository
	if value, err := factory.CreateProductRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		productRepository = value
	}
	product, err := productRepository.FindOne(map[string]interface{}{"productId": removeProductCommand.ProductId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if product == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(removeProductCommand.ProductId)))
	}
	if product, err := productRepository.Remove(product); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		if err := transactionContext.CommitTransaction(); err != nil {
			return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
		}
		return product, nil
	}
}

// 更新产品服务
func (productService *ProductService) UpdateProduct(updateProductCommand *command.UpdateProductCommand) (interface{}, error) {
	if err := updateProductCommand.ValidateCommand(); err != nil {
		return nil, application.ThrowError(application.ARG_ERROR, err.Error())
	}
	transactionContext, err := factory.CreateTransactionContext(nil)
	if err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	if err := transactionContext.StartTransaction(); err != nil {
		return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
	}
	defer func() {
		transactionContext.RollbackTransaction()
	}()
	var productRepository domain.ProductRepository
	if value, err := factory.CreateProductRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		productRepository = value
	}
	product, err := productRepository.FindOne(map[string]interface{}{"productId": updateProductCommand.ProductId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if product == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(updateProductCommand.ProductId)))
	}
	if err := product.Update(tool_funs.SimpleStructToMap(updateProductCommand)); err != nil {
		return nil, application.ThrowError(application.BUSINESS_ERROR, err.Error())
	}
	if product, err := productRepository.Save(product); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		if err := transactionContext.CommitTransaction(); err != nil {
			return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
		}
		return product, nil
	}
}

func NewProductService(options map[string]interface{}) *ProductService {
	newProductService := &ProductService{}
	return newProductService
}