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use crate::{DatabaseInternalError, Error}; use async_trait::async_trait; use houseflow_types::{Device, DeviceID, Room, Structure, User, UserID, UserStructure}; use std::sync::Arc; use tokio::sync::Mutex; #[derive(Debug, thiserror::Error)] pub enum InternalError {} struct Admin { user_id: UserID, } impl DatabaseInternalError for InternalError {} type ThreadVec<T> = Arc<Mutex<Vec<T>>>; #[derive(Clone, Default)] pub struct Database { users: ThreadVec<User>, admins: ThreadVec<Admin>, structures: ThreadVec<Structure>, rooms: ThreadVec<Room>, user_structures: ThreadVec<UserStructure>, devices: ThreadVec<Device>, } impl Database { pub fn new() -> Self { Default::default() } } #[async_trait] impl crate::Database for Database { async fn add_structure(&self, structure: &Structure) -> Result<(), Error> { let mut structures = self.structures.lock().await; structures.push(structure.clone()); Ok(()) } async fn add_room(&self, room: &Room) -> Result<(), Error> { let mut rooms = self.rooms.lock().await; rooms.push(room.clone()); Ok(()) } async fn add_device(&self, device: &Device) -> Result<(), Error> { let mut devices = self.devices.lock().await; devices.push(device.clone()); Ok(()) } async fn add_user_structure(&self, user_structure: &UserStructure) -> Result<(), Error> { let mut user_structures = self.user_structures.lock().await; user_structures.push(user_structure.clone()); Ok(()) } async fn add_user(&self, user: &User) -> Result<(), Error> { let mut users = self.users.lock().await; users.push(user.clone()); Ok(()) } async fn get_device(&self, device_id: &DeviceID) -> Result<Option<Device>, Error> { Ok(self .devices .lock() .await .iter() .find(|device| device.id == *device_id) .cloned()) } async fn get_user_devices(&self, user_id: &UserID) -> Result<Vec<Device>, Error> { let user_structures = self.user_structures.lock().await; let rooms = self.rooms.lock().await; let devices = self.devices.lock().await; let user_devices = user_structures .iter() .filter(|user_structure| user_structure.user_id == *user_id) .filter_map(|user_structure| { rooms .iter() .find(|room| room.structure_id == user_structure.structure_id) }) .filter_map(|room| devices.iter().find(|device| device.room_id == room.id)) .cloned() .collect::<Vec<_>>(); Ok(user_devices) } async fn get_user(&self, user_id: &UserID) -> Result<Option<User>, Error> { let user = self .users .lock() .await .iter() .find(|user| user.id == *user_id) .cloned(); Ok(user) } async fn get_user_by_email(&self, email: &str) -> Result<Option<User>, Error> { let users = self.users.lock().await; let user = users.iter().find(|user| user.email == *email).cloned(); Ok(user) } async fn check_user_device_access( &self, user_id: &UserID, device_id: &DeviceID, ) -> Result<bool, Error> { let user_structures = self.user_structures.lock().await; let rooms = self.rooms.lock().await; let devices = self.devices.lock().await; let have_access = user_structures .iter() .filter(|user_structure| user_structure.user_id == *user_id) .filter_map(|user_structure| { rooms .iter() .find(|room| room.structure_id == user_structure.structure_id) }) .any(|room| { devices .iter() .filter(|device| device.room_id == room.id) .any(|device| device.id == *device_id) }); Ok(have_access) } async fn check_user_device_manager_access( &self, user_id: &UserID, device_id: &DeviceID, ) -> Result<bool, Error> { let user_structures = self.user_structures.lock().await; let rooms = self.rooms.lock().await; let devices = self.devices.lock().await; let have_access = user_structures .iter() .filter(|user_structure| { user_structure.is_manager && user_structure.user_id == *user_id }) .filter_map(|user_structure| { rooms .iter() .find(|room| room.structure_id == user_structure.structure_id) }) .any(|room| { devices .iter() .filter(|device| device.room_id == room.id) .any(|device| device.id == *device_id) }); Ok(have_access) } async fn check_user_admin(&self, user_id: &UserID) -> Result<bool, Error> { let admins = self.admins.lock().await; let is_admin = admins.iter().any(|admin| admin.user_id == *user_id); Ok(is_admin) } async fn delete_user(&self, user_id: &UserID) -> Result<(), Error> { let mut users = self.users.lock().await; let pos = users .iter() .position(|user| user.id == *user_id) .ok_or(Error::NotModified)?; users.remove(pos); Ok(()) } }