feat: add line item service
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3 changed files with 168 additions and 0 deletions
113
src/ordering/application/services/add_line_item_service.rs
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113
src/ordering/application/services/add_line_item_service.rs
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// SPDX-FileCopyrightText: 2024 Aravinth Manivannan <realaravinth@batsense.net>
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//
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// SPDX-License-Identifier: AGPL-3.0-or-later
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use std::sync::Arc;
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use derive_builder::Builder;
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use mockall::predicate::*;
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use mockall::*;
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use time::OffsetDateTime;
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use super::errors::*;
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use crate::ordering::{
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application::port::output::db::line_item_id_exists::*,
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domain::{add_line_item_command::*, line_item_added_event::*, line_item_aggregate::*},
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};
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use crate::utils::uuid::*;
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#[automock]
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#[async_trait::async_trait]
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pub trait AddLineItemUseCase: Send + Sync {
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async fn add_line_item(&self, cmd: AddLineItemCommand) -> OrderingResult<LineItemAddedEvent>;
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}
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pub type AddLineItemServiceObj = Arc<dyn AddLineItemUseCase>;
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#[derive(Clone, Builder)]
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pub struct AddLineItemService {
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db_line_item_id_exists: LineItemIDExistsDBPortObj,
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get_uuid: GetUUIDInterfaceObj,
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}
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#[async_trait::async_trait]
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impl AddLineItemUseCase for AddLineItemService {
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async fn add_line_item(&self, cmd: AddLineItemCommand) -> OrderingResult<LineItemAddedEvent> {
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let mut line_item_id = self.get_uuid.get_uuid();
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loop {
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if self
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.db_line_item_id_exists
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.line_item_id_exists(&line_item_id)
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.await?
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{
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line_item_id = self.get_uuid.get_uuid();
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continue;
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} else {
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break;
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}
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}
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let line_item = LineItemBuilder::default()
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.sale_time(OffsetDateTime::now_utc())
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.product_name(cmd.product_name().into())
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.product_id(*cmd.product_id())
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.line_item_id(line_item_id)
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.quantity(cmd.quantity().clone())
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.deleted(false)
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.build()
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.unwrap();
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Ok(LineItemAddedEventBuilder::default()
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.added_by_user(*cmd.adding_by())
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.line_item(line_item)
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.build()
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.unwrap())
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}
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}
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#[cfg(test)]
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pub mod tests {
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use super::*;
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use crate::ordering::domain::line_item_added_event::tests::get_added_line_item_event_from_command;
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use crate::utils::uuid::tests::UUID;
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use crate::{tests::bdd::*, utils::uuid::tests::mock_get_uuid};
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pub fn mock_add_line_item_service(
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times: Option<usize>,
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cmd: AddLineItemCommand,
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) -> AddLineItemServiceObj {
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let mut m = MockAddLineItemUseCase::new();
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let res = get_added_line_item_event_from_command(&cmd);
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if let Some(times) = times {
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m.expect_add_line_item()
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.times(times)
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.returning(move |_| Ok(res.clone()));
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} else {
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m.expect_add_line_item().returning(move |_| Ok(res.clone()));
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}
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Arc::new(m)
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}
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#[actix_rt::test]
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async fn test_service() {
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let cmd = AddLineItemCommand::get_cmd();
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let s = AddLineItemServiceBuilder::default()
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.db_line_item_id_exists(mock_line_item_id_exists_db_port_false(IS_CALLED_ONLY_ONCE))
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.get_uuid(mock_get_uuid(IS_CALLED_ONLY_ONCE))
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.build()
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.unwrap();
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let res = s.add_line_item(cmd.clone()).await.unwrap();
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assert_eq!(res.line_item().product_name(), cmd.product_name());
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assert_eq!(res.line_item().product_id(), cmd.product_id());
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assert_eq!(res.line_item().quantity(), cmd.quantity());
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assert_eq!(res.line_item().quantity(), cmd.quantity());
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assert!(!res.line_item().deleted());
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assert_eq!(res.added_by_user(), cmd.adding_by());
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}
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}
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30
src/ordering/application/services/errors.rs
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30
src/ordering/application/services/errors.rs
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@ -0,0 +1,30 @@
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// SPDX-FileCopyrightText: 2024 Aravinth Manivannan <realaravinth@batsense.net>
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//
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// SPDX-License-Identifier: AGPL-3.0-or-later
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use derive_more::{Display, Error};
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use log::error;
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use serde::{Deserialize, Serialize};
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use crate::ordering::application::port::output::db::errors::OrderingDBError;
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pub type OrderingResult<V> = Result<V, OrderingError>;
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#[derive(Debug, Error, Display, Clone, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
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pub enum OrderingError {
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LineItemIDNotFound,
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InternalError,
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}
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//
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impl From<OrderingDBError> for OrderingError {
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fn from(value: OrderingDBError) -> Self {
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match value {
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OrderingDBError::DuplicateLineItemID => {
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error!("DuplicateLineItemID");
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Self::InternalError
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}
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OrderingDBError::LineItemIDNotFound => OrderingError::LineItemIDNotFound,
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OrderingDBError::InternalError => Self::InternalError,
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}
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}
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}
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@ -1,3 +1,28 @@
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// SPDX-FileCopyrightText: 2024 Aravinth Manivannan <realaravinth@batsense.net>
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//
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// SPDX-License-Identifier: AGPL-3.0-or-later
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use derive_builder::Builder;
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use mockall::predicate::*;
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use mockall::*;
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pub mod errors;
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//services
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pub mod add_line_item_service;
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#[automock]
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pub trait OrderingServicesInterface: Send + Sync {
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fn add_line_item(&self) -> add_line_item_service::AddLineItemServiceObj;
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}
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#[derive(Clone, Builder)]
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pub struct OrderingServices {
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add_line_item: add_line_item_service::AddLineItemServiceObj,
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}
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impl OrderingServicesInterface for OrderingServices {
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fn add_line_item(&self) -> add_line_item_service::AddLineItemServiceObj {
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self.add_line_item.clone()
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}
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}
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