src/inventory/adapters/output/db/postgres/customization_view.rs

@@ -60,7 +60,6 @@ impl View<Customization> for CustomizationView {
     }
 }
 
-
 #[async_trait]
 impl ViewRepository<CustomizationView, Customization> for InventoryDBPostgresAdapter {
     async fn load(

src/inventory/adapters/output/db/postgres/store_view.rs

@@ -215,13 +215,16 @@ mod tests {
                 add_customization_service::tests::mock_add_customization_service,
                 add_product_service::tests::mock_add_product_service,
                 add_store_service::AddStoreServiceBuilder,
+                update_customization_service::tests::mock_update_customization_service,
                 update_product_service::tests::mock_update_product_service,
                 InventoryServicesBuilder,
             },
             domain::{
                 add_category_command::AddCategoryCommand, add_customization_command,
                 add_product_command::tests::get_command, add_store_command::AddStoreCommand,
-                commands::InventoryCommand, update_product_command,
+                commands::InventoryCommand,
+                update_customization_command::tests::get_update_customization_command,
+                update_product_command,
             },
         },
         tests::bdd::IS_NEVER_CALLED,
@@ -266,6 +269,10 @@ mod tests {
                 IS_NEVER_CALLED,
                 update_product_command::tests::get_command(),
             ))
+            .update_customization(mock_update_customization_service(
+                IS_NEVER_CALLED,
+                get_update_customization_command(),
+            ))
             .build()
             .unwrap();
 

src/inventory/application/services/errors.rs

@@ -18,6 +18,7 @@ pub enum InventoryError {
     DuplicateCustomizationName,
     ProductIDNotFound,
     CategoryIDNotFound,
+    CustomizationIDNotFound,
     StoreIDNotFound,
     InternalError,
 }

src/inventory/application/services/mod.rs

@@ -13,6 +13,7 @@ pub mod add_category_service;
 pub mod add_customization_service;
 pub mod add_product_service;
 pub mod add_store_service;
+pub mod update_customization_service;
 pub mod update_product_service;
 
 #[automock]
@@ -22,6 +23,7 @@ pub trait InventoryServicesInterface: Send + Sync {
     fn add_product(&self) -> add_product_service::AddProductServiceObj;
     fn add_customization(&self) -> add_customization_service::AddCustomizationServiceObj;
     fn update_product(&self) -> update_product_service::UpdateProductServiceObj;
+    fn update_customization(&self) -> update_customization_service::UpdateCustomizationServiceObj;
 }
 
 #[derive(Clone, Builder)]
@@ -31,6 +33,7 @@ pub struct InventoryServices {
     add_product: add_product_service::AddProductServiceObj,
     add_customization: add_customization_service::AddCustomizationServiceObj,
     update_product: update_product_service::UpdateProductServiceObj,
+    update_customization: update_customization_service::UpdateCustomizationServiceObj,
 }
 
 impl InventoryServicesInterface for InventoryServices {
@@ -47,7 +50,12 @@ impl InventoryServicesInterface for InventoryServices {
     fn add_customization(&self) -> add_customization_service::AddCustomizationServiceObj {
         self.add_customization.clone()
     }
+
     fn update_product(&self) -> update_product_service::UpdateProductServiceObj {
-        self.update_product().clone()
+        self.update_product.clone()
+    }
+
+    fn update_customization(&self) -> update_customization_service::UpdateCustomizationServiceObj {
+        self.update_customization.clone()
     }
 }

src/inventory/application/services/update_customization_service.rs

@@ -0,0 +1,209 @@
+/// 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::inventory::{
+    application::port::output::db::{
+        customization_id_exists::*, customization_name_exists_for_product::*, product_id_exists::*,
+    },
+    domain::{
+        customization_aggregate::*, customization_updated_event::*, update_customization_command::*,
+    },
+};
+use crate::utils::uuid::*;
+
+#[automock]
+#[async_trait::async_trait]
+pub trait UpdateCustomizationUseCase: Send + Sync {
+    async fn update_customization(
+        &self,
+        cmd: UpdateCustomizationCommand,
+    ) -> InventoryResult<CustomizationUpdatedEvent>;
+}
+
+pub type UpdateCustomizationServiceObj = Arc<dyn UpdateCustomizationUseCase>;
+
+#[derive(Clone, Builder)]
+pub struct UpdateCustomizationService {
+    // TODO: check if product ID exists
+    db_customization_name_exists_for_product: CustomizationNameExistsForProductDBPortObj,
+    db_customization_id_exists: CustomizationIDExistsDBPortObj,
+    db_product_id_exists: ProductIDExistsDBPortObj,
+}
+
+#[async_trait::async_trait]
+impl UpdateCustomizationUseCase for UpdateCustomizationService {
+    async fn update_customization(
+        &self,
+        cmd: UpdateCustomizationCommand,
+    ) -> InventoryResult<CustomizationUpdatedEvent> {
+        if !self
+            .db_customization_id_exists
+            .customization_id_exists(cmd.old_customization().customization_id())
+            .await?
+        {
+            return Err(InventoryError::CustomizationIDNotFound);
+        }
+
+        if !self
+            .db_product_id_exists
+            .product_id_exists(cmd.old_customization().product_id())
+            .await?
+        {
+            return Err(InventoryError::ProductIDNotFound);
+        }
+
+        let updated_customization = CustomizationBuilder::default()
+            .name(cmd.name().into())
+            .product_id(*cmd.old_customization().product_id())
+            .customization_id(*cmd.old_customization().customization_id())
+            .deleted(*cmd.old_customization().deleted())
+            .build()
+            .unwrap();
+
+        if updated_customization.name() != cmd.old_customization().name() {
+            if self
+                .db_customization_name_exists_for_product
+                .customization_name_exists_for_product(&updated_customization)
+                .await?
+            {
+                return Err(InventoryError::DuplicateCustomizationName);
+            }
+        }
+
+        Ok(CustomizationUpdatedEventBuilder::default()
+            .added_by_user(*cmd.adding_by())
+            .old_customization(cmd.old_customization().clone())
+            .new_customization(updated_customization)
+            .build()
+            .unwrap())
+    }
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+
+    use crate::inventory::domain::customization_updated_event;
+    use crate::inventory::domain::update_customization_command::tests::get_update_customization_command;
+    use crate::tests::bdd::*;
+
+    pub fn mock_update_customization_service(
+        times: Option<usize>,
+        cmd: UpdateCustomizationCommand,
+    ) -> UpdateCustomizationServiceObj {
+        let mut m = MockUpdateCustomizationUseCase::new();
+
+        let res =
+            customization_updated_event::tests::get_customization_updated_event_from_command(&cmd);
+
+        if let Some(times) = times {
+            m.expect_update_customization()
+                .times(times)
+                .returning(move |_| Ok(res.clone()));
+        } else {
+            m.expect_update_customization()
+                .returning(move |_| Ok(res.clone()));
+        }
+
+        Arc::new(m)
+    }
+
+    #[actix_rt::test]
+    async fn test_service() {
+        let cmd = get_update_customization_command();
+
+        let s = UpdateCustomizationServiceBuilder::default()
+            .db_product_id_exists(mock_product_id_exists_db_port_true(IS_CALLED_ONLY_ONCE))
+            .db_customization_name_exists_for_product(
+                mock_customization_name_exists_for_product_db_port_false(IS_CALLED_ONLY_ONCE),
+            )
+            .db_customization_id_exists(mock_customization_id_exists_db_port_true(
+                IS_CALLED_ONLY_ONCE,
+            ))
+            .build()
+            .unwrap();
+
+        let res = s.update_customization(cmd.clone()).await.unwrap();
+        assert_eq!(res.new_customization().name(), cmd.name());
+        assert_eq!(
+            res.new_customization().product_id(),
+            cmd.old_customization().product_id()
+        );
+        assert_eq!(
+            res.new_customization().customization_id(),
+            cmd.old_customization().customization_id()
+        );
+        assert_eq!(res.old_customization(), cmd.old_customization());
+        assert_eq!(res.added_by_user(), cmd.adding_by());
+    }
+
+    #[actix_rt::test]
+    async fn test_service_product_doesnt_exist() {
+        let cmd = get_update_customization_command();
+
+        let s = UpdateCustomizationServiceBuilder::default()
+            .db_product_id_exists(mock_product_id_exists_db_port_false(IS_CALLED_ONLY_ONCE))
+            .db_customization_name_exists_for_product(
+                mock_customization_name_exists_for_product_db_port_false(IS_NEVER_CALLED),
+            )
+            .db_customization_id_exists(mock_customization_id_exists_db_port_true(
+                IS_CALLED_ONLY_ONCE,
+            ))
+            .build()
+            .unwrap();
+
+        assert_eq!(
+            s.update_customization(cmd.clone()).await,
+            Err(InventoryError::ProductIDNotFound)
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_customization_id_not_found() {
+        let cmd = get_update_customization_command();
+
+        let s = UpdateCustomizationServiceBuilder::default()
+            .db_product_id_exists(mock_product_id_exists_db_port_true(IS_NEVER_CALLED))
+            .db_customization_name_exists_for_product(
+                mock_customization_name_exists_for_product_db_port_false(IS_NEVER_CALLED),
+            )
+            .db_customization_id_exists(mock_customization_id_exists_db_port_false(
+                IS_CALLED_ONLY_ONCE,
+            ))
+            .build()
+            .unwrap();
+
+        assert_eq!(
+            s.update_customization(cmd.clone()).await,
+            Err(InventoryError::CustomizationIDNotFound)
+        );
+    }
+
+    #[actix_rt::test]
+    async fn test_duplicate_new_name() {
+        let cmd = get_update_customization_command();
+
+        let s = UpdateCustomizationServiceBuilder::default()
+            .db_product_id_exists(mock_product_id_exists_db_port_true(IS_CALLED_ONLY_ONCE))
+            .db_customization_name_exists_for_product(
+                mock_customization_name_exists_for_product_db_port_true(IS_CALLED_ONLY_ONCE),
+            )
+            .db_customization_id_exists(mock_customization_id_exists_db_port_true(
+                IS_CALLED_ONLY_ONCE,
+            ))
+            .build()
+            .unwrap();
+
+        assert_eq!(
+            s.update_customization(cmd.clone()).await,
+            Err(InventoryError::DuplicateCustomizationName)
+        );
+    }
+}

src/inventory/domain/commands.rs

@@ -8,6 +8,7 @@ use serde::{Deserialize, Serialize};
 use super::{
     add_category_command::AddCategoryCommand, add_customization_command::AddCustomizationCommand,
     add_product_command::AddProductCommand, add_store_command::AddStoreCommand,
+    update_customization_command::UpdateCustomizationCommand,
     update_product_command::UpdateProductCommand,
 };
 
@@ -18,4 +19,5 @@ pub enum InventoryCommand {
     AddProduct(AddProductCommand),
     AddCustomization(AddCustomizationCommand),
     UpdateProduct(UpdateProductCommand),
+    UpdateCustomization(UpdateCustomizationCommand),
 }

src/inventory/domain/customization_aggregate.rs

@@ -51,6 +51,14 @@ impl Aggregate for Customization {
                 let res = services.add_customization().add_customization(cmd).await?;
                 Ok(vec![InventoryEvent::CustomizationAdded(res)])
             }
+            InventoryCommand::UpdateCustomization(cmd) => {
+                let res = services
+                    .update_customization()
+                    .update_customization(cmd)
+                    .await?;
+                Ok(vec![InventoryEvent::CustomizationUpdated(res)])
+            }
+
             _ => Ok(Vec::default()),
         }
     }
@@ -60,6 +68,9 @@ impl Aggregate for Customization {
             InventoryEvent::CustomizationAdded(e) => {
                 *self = e.customization().clone();
             }
+            InventoryEvent::CustomizationUpdated(e) => {
+                *self = e.new_customization().clone();
+            }
             _ => (),
         }
     }
@@ -73,11 +84,15 @@ mod aggregate_tests {
 
     use super::*;
     use crate::inventory::{
-        application::services::{add_customization_service::tests::*, *},
+        application::services::{
+            add_customization_service::tests::*, update_customization_service::tests::*, *,
+        },
         domain::{
             add_customization_command, commands::InventoryCommand,
             customization_added_event::tests::get_customization_added_event_from_cmd,
+            customization_updated_event::tests::get_customization_updated_event_from_command,
             events::InventoryEvent,
+            update_customization_command::tests::get_update_customization_command,
         },
     };
     use crate::tests::bdd::*;
@@ -104,4 +119,25 @@ mod aggregate_tests {
             .when(InventoryCommand::AddCustomization(cmd))
             .then_expect_events(vec![expected]);
     }
+
+    #[test]
+    fn test_update_customization() {
+        let cmd = get_update_customization_command();
+        let expected = get_customization_updated_event_from_command(&cmd);
+        let expected = InventoryEvent::CustomizationUpdated(expected);
+
+        let mut services = MockInventoryServicesInterface::new();
+        services
+            .expect_update_customization()
+            .times(IS_CALLED_ONLY_ONCE.unwrap())
+            .return_const(mock_update_customization_service(
+                IS_CALLED_ONLY_ONCE,
+                cmd.clone(),
+            ));
+
+        CustomizationTestFramework::with(Arc::new(services))
+            .given_no_previous_events()
+            .when(InventoryCommand::UpdateCustomization(cmd))
+            .then_expect_events(vec![expected]);
+    }
 }

src/inventory/domain/customization_updated_event.rs

@@ -0,0 +1,52 @@
+// SPDX-FileCopyrightText: 2024 Aravinth Manivannan <realaravinth@batsense.net>
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+use derive_builder::Builder;
+use derive_getters::Getters;
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+use super::customization_aggregate::Customization;
+
+#[derive(
+    Clone, Debug, Builder, Serialize, Deserialize, Getters, Eq, PartialEq, Ord, PartialOrd,
+)]
+pub struct CustomizationUpdatedEvent {
+    added_by_user: Uuid,
+
+    old_customization: Customization,
+    new_customization: Customization,
+}
+
+#[cfg(test)]
+pub mod tests {
+    use crate::inventory::domain::{
+        customization_aggregate::*, update_customization_command::UpdateCustomizationCommand,
+    };
+    use crate::utils::uuid::tests::UUID;
+
+    use super::*;
+
+    #[test]
+    fn test_name() {}
+
+    pub fn get_customization_updated_event_from_command(
+        cmd: &UpdateCustomizationCommand,
+    ) -> CustomizationUpdatedEvent {
+        let customization = CustomizationBuilder::default()
+            .name(cmd.name().into())
+            .deleted(false)
+            .customization_id(UUID.clone())
+            .product_id(UUID.clone())
+            .build()
+            .unwrap();
+
+        CustomizationUpdatedEventBuilder::default()
+            .added_by_user(cmd.adding_by().clone())
+            .new_customization(customization)
+            .old_customization(cmd.old_customization().clone())
+            .build()
+            .unwrap()
+    }
+}

src/inventory/domain/events.rs

@@ -7,8 +7,8 @@ use serde::{Deserialize, Serialize};
 
 use super::{
     category_added_event::*, customization_added_event::CustomizationAddedEvent,
-    product_added_event::ProductAddedEvent, product_updated_event::ProductUpdatedEvent,
+    customization_updated_event::CustomizationUpdatedEvent, product_added_event::ProductAddedEvent,
-    store_added_event::StoreAddedEvent,
+    product_updated_event::ProductUpdatedEvent, store_added_event::StoreAddedEvent,
 };
 
 #[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Ord, PartialOrd)]
@@ -18,6 +18,7 @@ pub enum InventoryEvent {
     ProductAdded(ProductAddedEvent),
     CustomizationAdded(CustomizationAddedEvent),
     ProductUpdated(ProductUpdatedEvent),
+    CustomizationUpdated(CustomizationUpdatedEvent),
 }
 
 impl DomainEvent for InventoryEvent {
@@ -32,6 +33,7 @@ impl DomainEvent for InventoryEvent {
             InventoryEvent::ProductAdded { .. } => "InventoryProductAdded",
             InventoryEvent::CustomizationAdded { .. } => "InventoryCustomizationAdded",
             InventoryEvent::ProductUpdated { .. } => "InventoryProductUpdated",
+            InventoryEvent::CustomizationUpdated { .. } => "InventoryCustomizationUpdated",
         };
 
         e.to_string()

src/inventory/domain/mod.rs

@@ -15,11 +15,13 @@ pub mod add_customization_command;
 pub mod add_product_command;
 pub mod add_store_command;
 pub mod commands;
+pub mod update_customization_command;
 pub mod update_product_command;
 
 // events
 pub mod category_added_event;
 pub mod customization_added_event;
+pub mod customization_updated_event;
 pub mod events;
 pub mod product_added_event;
 pub mod product_updated_event;

src/inventory/domain/update_customization_command.rs

@@ -0,0 +1,101 @@
+// SPDX-FileCopyrightText: 2024 Aravinth Manivannan <realaravinth@batsense.net>
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+use derive_builder::Builder;
+use derive_getters::Getters;
+use derive_more::{Display, Error};
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+use super::customization_aggregate::Customization;
+
+#[derive(Debug, Error, Display, Clone, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
+pub enum UpdateCustomizationCommandError {
+    NameIsEmpty,
+}
+
+#[derive(
+    Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Ord, PartialOrd, Getters, Builder,
+)]
+pub struct UnvalidatedUpdateCustomizationCommand {
+    name: String,
+    adding_by: Uuid,
+
+    old_customization: Customization,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Ord, PartialOrd, Getters)]
+pub struct UpdateCustomizationCommand {
+    name: String,
+    old_customization: Customization,
+    adding_by: Uuid,
+}
+
+impl UnvalidatedUpdateCustomizationCommand {
+    pub fn validate(self) -> Result<UpdateCustomizationCommand, UpdateCustomizationCommandError> {
+        let name = self.name.trim().to_owned();
+        if name.is_empty() {
+            return Err(UpdateCustomizationCommandError::NameIsEmpty);
+        }
+
+        Ok(UpdateCustomizationCommand {
+            name,
+            old_customization: self.old_customization,
+            adding_by: self.adding_by,
+        })
+    }
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+
+    use crate::{
+        inventory::domain::customization_aggregate::Customization, utils::uuid::tests::UUID,
+    };
+
+    pub fn get_update_customization_command() -> UpdateCustomizationCommand {
+        let customozation = Customization::default();
+        UnvalidatedUpdateCustomizationCommandBuilder::default()
+            .name("foo".into())
+            .old_customization(customozation)
+            .adding_by(UUID.clone())
+            .build()
+            .unwrap()
+            .validate()
+            .unwrap()
+    }
+
+    #[test]
+    fn test_cmd() {
+        let name = "foo";
+
+        let cmd = UnvalidatedUpdateCustomizationCommandBuilder::default()
+            .name(name.into())
+            .old_customization(Customization::default())
+            .adding_by(UUID.clone())
+            .build()
+            .unwrap()
+            .validate()
+            .unwrap();
+
+        assert_eq!(cmd.name(), name);
+        assert_eq!(cmd.adding_by(), &UUID);
+        assert_eq!(cmd.old_customization(), &Customization::default());
+    }
+
+    #[test]
+    fn test_cmd_name_is_empty() {
+        assert_eq!(
+            UnvalidatedUpdateCustomizationCommandBuilder::default()
+                .name("".into())
+                .adding_by(UUID.clone())
+                .old_customization(Customization::default())
+                .build()
+                .unwrap()
+                .validate(),
+            Err(UpdateCustomizationCommandError::NameIsEmpty)
+        );
+    }
+}