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refactor: [#187] extract tag::Service
See #157.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| //! Tag service. | ||
| use std::sync::Arc; | ||
|
|
||
| use super::user::DbUserRepository; | ||
| use crate::databases::database::{Database, Error as DatabaseError, Error}; | ||
| use crate::errors::ServiceError; | ||
| use crate::models::torrent_tag::{TagId, TorrentTag}; | ||
| use crate::models::user::UserId; | ||
|
|
||
| pub struct Service { | ||
| tag_repository: Arc<DbTagRepository>, | ||
| user_repository: Arc<DbUserRepository>, | ||
| } | ||
|
|
||
| impl Service { | ||
| #[must_use] | ||
| pub fn new(tag_repository: Arc<DbTagRepository>, user_repository: Arc<DbUserRepository>) -> Service { | ||
| Service { | ||
| tag_repository, | ||
| user_repository, | ||
| } | ||
| } | ||
|
|
||
| /// Adds a new tag. | ||
| /// | ||
| /// # Errors | ||
| /// | ||
| /// It returns an error if: | ||
| /// | ||
| /// * The user does not have the required permissions. | ||
| /// * There is a database error. | ||
| pub async fn add_tag(&self, tag_name: &str, user_id: &UserId) -> Result<(), ServiceError> { | ||
| let user = self.user_repository.get_compact(user_id).await?; | ||
|
|
||
| // Check if user is administrator | ||
| // todo: extract authorization service | ||
| if !user.administrator { | ||
| return Err(ServiceError::Unauthorized); | ||
| } | ||
|
|
||
| match self.tag_repository.add(tag_name).await { | ||
| Ok(_) => Ok(()), | ||
| Err(e) => match e { | ||
| DatabaseError::TagAlreadyExists => Err(ServiceError::TagAlreadyExists), | ||
| _ => Err(ServiceError::DatabaseError), | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| /// Deletes a tag. | ||
| /// | ||
| /// # Errors | ||
| /// | ||
| /// It returns an error if: | ||
| /// | ||
| /// * The user does not have the required permissions. | ||
| /// * There is a database error. | ||
| pub async fn delete_tag(&self, tag_id: &TagId, user_id: &UserId) -> Result<(), ServiceError> { | ||
| let user = self.user_repository.get_compact(user_id).await?; | ||
|
|
||
| // Check if user is administrator | ||
| // todo: extract authorization service | ||
| if !user.administrator { | ||
| return Err(ServiceError::Unauthorized); | ||
| } | ||
|
|
||
| match self.tag_repository.delete(tag_id).await { | ||
| Ok(_) => Ok(()), | ||
| Err(e) => match e { | ||
| DatabaseError::TagNotFound => Err(ServiceError::TagNotFound), | ||
| _ => Err(ServiceError::DatabaseError), | ||
| }, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| pub struct DbTagRepository { | ||
| database: Arc<Box<dyn Database>>, | ||
| } | ||
|
|
||
| impl DbTagRepository { | ||
| #[must_use] | ||
| pub fn new(database: Arc<Box<dyn Database>>) -> Self { | ||
| Self { database } | ||
| } | ||
|
|
||
| /// It adds a new tag and returns the newly created tag. | ||
| /// | ||
| /// # Errors | ||
| /// | ||
| /// It returns an error if there is a database error. | ||
| pub async fn add(&self, tag_name: &str) -> Result<(), Error> { | ||
| self.database.add_tag(tag_name).await | ||
| } | ||
|
|
||
| /// It returns all the tags. | ||
| /// | ||
| /// # Errors | ||
| /// | ||
| /// It returns an error if there is a database error. | ||
| pub async fn get_all(&self) -> Result<Vec<TorrentTag>, Error> { | ||
| self.database.get_tags().await | ||
| } | ||
|
|
||
| /// It removes a tag and returns it. | ||
| /// | ||
| /// # Errors | ||
| /// | ||
| /// It returns an error if there is a database error. | ||
| pub async fn delete(&self, tag_id: &TagId) -> Result<(), Error> { | ||
| self.database.delete_tag(*tag_id).await | ||
| } | ||
| } |
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