package service

import (
	"context"
	"fmt"
	"github.com/linmadan/egglib-go/core/application"
	"github.com/linmadan/egglib-go/utils/tool_funs"
	"github.com/tiptok/godevp/pkg/application/factory"
	"github.com/tiptok/godevp/pkg/application/users/command"
	"github.com/tiptok/godevp/pkg/application/users/query"
	"github.com/tiptok/godevp/pkg/domain/users"
)

type UsersService struct {
	ctx context.Context
}

// 创建
func (usersService *UsersService) CreateUsers(createUsersCommand *command.CreateUsersCommand) (interface{}, error) {
	if err := createUsersCommand.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()
	}()
	newUsers := &users.Users{
		Name:  createUsersCommand.Name,
		Phone: createUsersCommand.Phone,
	}
	var usersRepository users.UsersRepository
	if value, err := factory.CreateUsersRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		usersRepository = value
	}
	if users, err := usersRepository.Save(newUsers); 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 users, nil
	}
}

// 返回
func (usersService *UsersService) GetUsers(getUsersQuery *query.GetUsersQuery) (interface{}, error) {
	if err := getUsersQuery.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 usersRepository users.UsersRepository
	if value, err := factory.CreateUsersRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		usersRepository = value
	}
	users, err := usersRepository.FindOne(map[string]interface{}{"usersId": getUsersQuery.UsersId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if users == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(getUsersQuery.UsersId)))
	} else {
		if err := transactionContext.CommitTransaction(); err != nil {
			return nil, application.ThrowError(application.TRANSACTION_ERROR, err.Error())
		}
		return users, nil
	}
}

// 返回列表
func (usersService *UsersService) ListUsers(listUsersQuery *query.ListUsersQuery) (interface{}, error) {
	if err := listUsersQuery.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 usersRepository users.UsersRepository
	if value, err := factory.CreateUsersRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		usersRepository = value
	}
	if count, userss, err := usersRepository.Find(tool_funs.SimpleStructToMap(listUsersQuery)); 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,
			"users": userss,
		}, nil
	}
}

// 移除
func (usersService *UsersService) RemoveUsers(removeUsersCommand *command.RemoveUsersCommand) (interface{}, error) {
	if err := removeUsersCommand.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 usersRepository users.UsersRepository
	if value, err := factory.CreateUsersRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		usersRepository = value
	}
	users, err := usersRepository.FindOne(map[string]interface{}{"usersId": removeUsersCommand.UsersId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if users == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(removeUsersCommand.UsersId)))
	}
	if users, err := usersRepository.Remove(users); 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 users, nil
	}
}

// 更新
func (usersService *UsersService) UpdateUsers(updateUsersCommand *command.UpdateUsersCommand) (interface{}, error) {
	if err := updateUsersCommand.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 usersRepository users.UsersRepository
	if value, err := factory.CreateUsersRepository(map[string]interface{}{
		"transactionContext": transactionContext,
	}); err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	} else {
		usersRepository = value
	}
	users, err := usersRepository.FindOne(map[string]interface{}{"usersId": updateUsersCommand.UsersId})
	if err != nil {
		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
	}
	if users == nil {
		return nil, application.ThrowError(application.RES_NO_FIND_ERROR, fmt.Sprintf("%s", string(updateUsersCommand.UsersId)))
	}
	if err := users.Update(tool_funs.SimpleStructToMap(updateUsersCommand)); err != nil {
		return nil, application.ThrowError(application.BUSINESS_ERROR, err.Error())
	}
	if users, err := usersRepository.Save(users); 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 users, nil
	}
}

func NewUsersService(options map[string]interface{}) *UsersService {
	newUsersService := &UsersService{}
	if ctx, ok := options["context"]; ok {
		newUsersService.ctx = ctx.(context.Context)
	}
	return newUsersService
}