vanikam/src/ordering/application/services/add_store_service.rs

// SPDX-FileCopyrightText: 2024 Aravinth Manivannan <realaravinth@batsense.net>
//
// SPDX-License-Identifier: AGPL-3.0-or-later

use std::sync::Arc;

use derive_builder::Builder;
use mockall::predicate::*;
use mockall::*;

use super::errors::*;
use crate::ordering::{
    application::port::output::db::{store_id_exists::*, store_name_exists::*},
    domain::{
        add_store_command::*,
        store_added_event::{StoreAddedEvent, StoreAddedEventBuilder},
        store_aggregate::*,
    },
};

#[automock]
#[async_trait::async_trait]
pub trait AddStoreUseCase: Send + Sync {
    async fn add_store(&self, cmd: AddStoreCommand) -> OrderingResult<StoreAddedEvent>;
}

pub type AddStoreServiceObj = Arc<dyn AddStoreUseCase>;

#[derive(Clone, Builder)]
pub struct AddStoreService {
    db_store_id_exists: StoreIDExistsDBPortObj,
    db_store_name_exists: StoreNameExistsDBPortObj,
}

#[async_trait::async_trait]
impl AddStoreUseCase for AddStoreService {
    async fn add_store(&self, cmd: AddStoreCommand) -> OrderingResult<StoreAddedEvent> {
        if self
            .db_store_id_exists
            .store_id_exists(cmd.store_id())
            .await?
        {
            return Err(OrderingError::DuplicateStoreID);
        }

        let store = StoreBuilder::default()
            .name(cmd.name().into())
            .address(cmd.address().as_ref().map(|s| s.to_string()))
            .owner(*cmd.owner())
            .store_id(*cmd.store_id())
            .build()
            .unwrap();

        if self.db_store_name_exists.store_name_exists(&store).await? {
            return Err(OrderingError::DuplicateStoreName);
        }

        Ok(StoreAddedEventBuilder::default()
            .name(store.name().into())
            .address(store.address().as_ref().map(|s| s.to_string()))
            .owner(*cmd.owner())
            .store_id(*cmd.store_id())
            .build()
            .unwrap())
    }
}

#[cfg(test)]
pub mod tests {
    use super::*;

    use crate::tests::bdd::*;
    use crate::utils::uuid::tests::*;

    pub fn mock_add_store_service(
        times: Option<usize>,
        cmd: AddStoreCommand,
    ) -> AddStoreServiceObj {
        let mut m = MockAddStoreUseCase::new();

        let res = StoreAddedEventBuilder::default()
            .name(cmd.name().into())
            .address(cmd.address().as_ref().map(|s| s.to_string()))
            .owner(*cmd.owner())
            .store_id(*cmd.store_id())
            .build()
            .unwrap();

        if let Some(times) = times {
            m.expect_add_store()
                .times(times)
                .returning(move |_| Ok(res.clone()));
        } else {
            m.expect_add_store().returning(move |_| Ok(res.clone()));
        }

        Arc::new(m)
    }

    #[actix_rt::test]
    async fn test_service_store_id_doesnt_exist() {
        let name = "foo";
        let address = "bar";
        let owner = UUID;

        let cmd = AddStoreCommandBuilder::default()
            .name(name.into())
            .address(Some(address.into()))
            .owner(owner)
            .store_id(UUID)
            .build()
            .unwrap();

        let s = AddStoreServiceBuilder::default()
            .db_store_id_exists(mock_store_id_exists_db_port_false(IS_CALLED_ONLY_ONCE))
            .db_store_name_exists(mock_store_name_exists_db_port_false(IS_CALLED_ONLY_ONCE))
            .build()
            .unwrap();

        let res = s.add_store(cmd.clone()).await.unwrap();
        assert_eq!(res.name(), cmd.name());
        assert_eq!(res.address(), cmd.address());
        assert_eq!(res.owner(), cmd.owner());
        assert_eq!(res.store_id(), cmd.store_id());
    }

    #[actix_rt::test]
    async fn test_service_store_name_exists() {
        let name = "foo";
        let address = "bar";
        let owner = UUID;

        let cmd = AddStoreCommandBuilder::default()
            .name(name.into())
            .address(Some(address.into()))
            .owner(owner)
            .store_id(UUID)
            .build()
            .unwrap();

        let s = AddStoreServiceBuilder::default()
            .db_store_id_exists(mock_store_id_exists_db_port_false(IS_CALLED_ONLY_ONCE))
            .db_store_name_exists(mock_store_name_exists_db_port_true(IS_CALLED_ONLY_ONCE))
            .build()
            .unwrap();

        assert_eq!(
            s.add_store(cmd.clone()).await,
            Err(OrderingError::DuplicateStoreName)
        );
    }
}