package service

import (
	"fmt"
	"github.com/linmadan/egglib-go/core/application"
	"github.com/linmadan/egglib-go/utils/tool_funs"
	"gitlab.fjmaimaimai.com/mmm-go-pp/terms/pkg/application/factory"
	"gitlab.fjmaimaimai.com/mmm-go-pp/terms/pkg/application/menu/command"
	"gitlab.fjmaimaimai.com/mmm-go-pp/terms/pkg/application/menu/query"
	"gitlab.fjmaimaimai.com/mmm-go-pp/terms/pkg/domain"
)

// 菜单服务
type MenuService struct {
}

// 创建菜单服务
func (menuService *MenuService) CreateMenu(createMenuCommand *command.CreateMenuCommand) (interface{}, error) {
	if err := createMenuCommand.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()
	}()
	newMenu := &domain.Menu{
		ParentId:   createMenuCommand.ParentId,
		MenuName:   createMenuCommand.MenuName,
		Code:       createMenuCommand.Code,
		AccessCode: createMenuCommand.AccessCode,
		MenuType:   createMenuCommand.MenuType,
		Icon:       createMenuCommand.Icon,
		Sort:       createMenuCommand.Sort,
		Remark:     createMenuCommand.Desc,
		IsPublish:  createMenuCommand.IsPublish,
	}
	var menuRepository domain.MenuRepository
	if value, err := factory.CreateMenuRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		menuRepository = value
	}
	if menu, err := menuRepository.Save(newMenu); 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 menu, nil
	}
}

// 返回菜单服务
func (menuService *MenuService) GetMenu(getMenuQuery *query.GetMenuQuery) (interface{}, error) {
	if err := getMenuQuery.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 menuRepository domain.MenuRepository
	if value, err := factory.CreateMenuRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		menuRepository = value
	}
	menu, err := menuRepository.FindOne(map[string]interface{}{"menuId": getMenuQuery.MenuId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if menu == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(getMenuQuery.MenuId)))
	} else {
		if err := transactionContext.CommitTransaction(); err != nil {
			return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
		}
		return menu, nil
	}
}

// 返回菜单服务列表
func (menuService *MenuService) ListMenu(listMenuQuery *query.ListMenuQuery) (interface{}, error) {
	if err := listMenuQuery.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 menuRepository domain.MenuRepository
	if value, err := factory.CreateMenuRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		menuRepository = value
	}
	if count, menus, err := menuRepository.Find(tool_funs.SimpleStructToMap(listMenuQuery)); 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,
			"menus": menus,
		}, nil
	}
}

// 移除菜单服务
func (menuService *MenuService) RemoveMenu(removeMenuCommand *command.RemoveMenuCommand) (interface{}, error) {
	if err := removeMenuCommand.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 menuRepository domain.MenuRepository
	if value, err := factory.CreateMenuRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		menuRepository = value
	}
	menu, err := menuRepository.FindOne(map[string]interface{}{"menuId": removeMenuCommand.MenuId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if menu == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(removeMenuCommand.MenuId)))
	}
	if menu, err := menuRepository.Remove(menu); 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 menu, nil
	}
}

// 更新菜单服务
func (menuService *MenuService) UpdateMenu(updateMenuCommand *command.UpdateMenuCommand) (interface{}, error) {
	if err := updateMenuCommand.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 menuRepository domain.MenuRepository
	if value, err := factory.CreateMenuRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		menuRepository = value
	}
	menu, err := menuRepository.FindOne(map[string]interface{}{"menuId": updateMenuCommand.MenuId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if menu == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(updateMenuCommand.MenuId)))
	}
	if err := menu.Update(tool_funs.SimpleStructToMap(updateMenuCommand)); err != nil {
		return nil, application.ThrowError(application.BUSINESS_ERROR, err.Error())
	}
	if menu, err := menuRepository.Save(menu); 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 menu, nil
	}
}

func NewMenuService(options map[string]interface{}) *MenuService {
	newMenuService := &MenuService{}
	return newMenuService
}