kick contract transaction

one single transaction query to execute all the kick operation
Remove unused fields from deleted_app schema
a basic test for kick and possibilities

interim_tables.surql

@@ -130,8 +130,6 @@ DEFINE FIELD disk_size_gb ON TABLE deleted_app TYPE int;
 DEFINE FIELD created_at ON TABLE deleted_app TYPE datetime;
 DEFINE FIELD deleted_at ON TABLE deleted_app TYPE datetime;
 DEFINE FIELD price_per_unit ON TABLE deleted_app TYPE int;
-DEFINE FIELD locked_nano ON TABLE deleted_app TYPE int;
-DEFINE FIELD collected_at ON TABLE deleted_app TYPE datetime;
 DEFINE FIELD mr_enclave ON TABLE deleted_app TYPE string;
 DEFINE FIELD package_url ON TABLE deleted_app TYPE string;
 DEFINE FIELD hratls_pubkey ON TABLE deleted_app TYPE string;
@@ -143,6 +141,7 @@ DEFINE TABLE kick TYPE RELATION FROM account TO account;
 DEFINE FIELD created_at ON TABLE kick TYPE datetime;
 DEFINE FIELD reason ON TABLE kick TYPE string;
 DEFINE FIELD contract ON TABLE kick TYPE record<deleted_vm|deleted_app>;
+DEFINE FIELD node ON TABLE kick TYPE record<vm_node|app_name>;
 
 DEFINE TABLE report TYPE RELATION FROM account TO vm_node|app_node;
 DEFINE FIELD created_at ON TABLE report TYPE datetime;

src/constants.rs

@@ -23,6 +23,8 @@ pub static ADMIN_ACCOUNTS: LazyLock<Vec<String>> = LazyLock::new(|| {
 pub const OLD_BRAIN_DATA_PATH: &str = "./saved_data.yaml";
 
 pub const ACCOUNT: &str = "account";
+pub const KICK: &str = "kick";
+
 pub const VM_NODE: &str = "vm_node";
 pub const ACTIVE_VM: &str = "active_vm";
 pub const VM_UPDATE_EVENT: &str = "vm_update_event";
@@ -42,3 +44,6 @@ pub const ID_ALPHABET: [char; 62] = [
     'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
     'V', 'W', 'X', 'Y', 'Z',
 ];
+
+pub const MIN_ESCROW: u64 = 5000;
+pub const TOKEN_DECIMAL: u64 = 1_000_000_000;

src/db/app.rs

@@ -12,7 +12,7 @@ use surrealdb::sql::Datetime;
 use surrealdb::{Notification, RecordId, Surreal};
 use tokio_stream::StreamExt;
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct AppNode {
     pub id: RecordId,
     pub operator: RecordId,
@@ -32,8 +32,9 @@ pub struct AppNode {
 impl AppNode {
     pub async fn register(self, db: &Surreal<Client>) -> Result<AppNode, Error> {
         db::Account::get_or_create(db, &self.operator.key().to_string()).await?;
-        let app_node: Option<AppNode> = db.upsert(self.id.clone()).content(self).await?;
-        app_node.ok_or(Error::FailedToCreateDBEntry)
+        let app_node_id = self.id.clone();
+        let app_node: Option<AppNode> = db.upsert(app_node_id.clone()).content(self).await?;
+        app_node.ok_or(Error::FailedToCreateDBEntry(format!("{APP_NODE}:{app_node_id}")))
     }
 }
 
@@ -54,7 +55,7 @@ impl From<DeletedApp> for AppDaemonMsg {
     }
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct NewAppReq {
     pub id: RecordId,
     #[serde(rename = "in")]
@@ -97,6 +98,7 @@ impl NewAppReq {
     }
 
     pub async fn submit(self, db: &Surreal<Client>) -> Result<Vec<Self>, Error> {
+        // TODO: handle financial transaction
         let new_app_req: Vec<Self> = db.insert(NEW_APP_REQ).relation(self).await?;
         Ok(new_app_req)
     }
@@ -164,7 +166,7 @@ impl AppNodeWithReports {
     }
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct ActiveApp {
     pub id: RecordId,
     #[serde(rename = "in")]
@@ -210,6 +212,15 @@ impl From<ActiveApp> for DeletedApp {
 }
 
 impl ActiveApp {
+    pub fn price_per_minute(&self) -> u64 {
+        (self.total_units() * self.price_per_unit as f64) as u64
+    }
+
+    fn total_units(&self) -> f64 {
+        // TODO: Optimize this based on price of hardware.
+        (self.vcpus as f64 * 5f64) + (self.memory_mb as f64 / 200f64) + (self.disk_size_gb as f64)
+    }
+
     pub async fn activate(db: &Surreal<Client>, id: &str) -> Result<(), Error> {
         let new_app_req = match NewAppReq::get(db, id).await? {
             Some(r) => r,
@@ -293,7 +304,7 @@ impl ActiveApp {
     }
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct ActiveAppWithNode {
     pub id: RecordId,
     #[serde(rename = "in")]
@@ -315,6 +326,29 @@ pub struct ActiveAppWithNode {
     pub hratls_pubkey: String,
 }
 
+impl From<ActiveAppWithNode> for ActiveApp {
+    fn from(val: ActiveAppWithNode) -> Self {
+        Self {
+            id: val.id,
+            admin: val.admin,
+            app_node: val.app_node.id,
+            app_name: val.app_name,
+            mapped_ports: val.mapped_ports,
+            host_ipv4: val.host_ipv4,
+            vcpus: val.vcpus,
+            memory_mb: val.memory_mb,
+            disk_size_gb: val.disk_size_gb,
+            created_at: val.created_at,
+            price_per_unit: val.price_per_unit,
+            locked_nano: val.locked_nano,
+            collected_at: val.collected_at,
+            mr_enclave: val.mr_enclave,
+            package_url: val.package_url,
+            hratls_pubkey: val.hratls_pubkey,
+        }
+    }
+}
+
 impl ActiveAppWithNode {
     pub async fn get_by_uuid(db: &Surreal<Client>, uuid: &str) -> Result<Option<Self>, Error> {
         let contract: Option<Self> =

src/db/general.rs

@@ -1,7 +1,6 @@
-use crate::constants::ACCOUNT;
-use crate::db::prelude::*;
-
 use super::Error;
+use crate::constants::{ACCOUNT, KICK, MIN_ESCROW, TOKEN_DECIMAL};
+use crate::db::prelude::*;
 use crate::old_brain;
 use serde::{Deserialize, Serialize};
 use surrealdb::engine::remote::ws::Client;
@@ -37,7 +36,7 @@ impl Account {
             Some(account) => Ok(account),
             None => {
                 let account: Option<Self> = db.create(id).await?;
-                account.ok_or(Error::FailedToCreateDBEntry)
+                account.ok_or(Error::FailedToCreateDBEntry(ACCOUNT.to_string()))
             }
         }
     }
@@ -49,6 +48,33 @@ impl Account {
             .await?;
         Ok(())
     }
+
+    pub async fn save(self, db: &Surreal<Client>) -> Result<Option<Self>, Error> {
+        let account: Option<Self> = db.upsert(self.id.clone()).content(self).await?;
+        Ok(account)
+    }
+
+    pub async fn operator_reg(
+        db: &Surreal<Client>,
+        wallet: &str,
+        email: &str,
+        escrow: u64,
+    ) -> Result<(), Error> {
+        if escrow < MIN_ESCROW {
+            return Err(Error::MinimalEscrow);
+        }
+        let mut op_account = Self::get(db, wallet).await?;
+        let escrow = escrow.saturating_mul(TOKEN_DECIMAL);
+        let op_total_balance = op_account.balance.saturating_add(op_account.escrow);
+        if op_total_balance < escrow {
+            return Err(Error::InsufficientFunds);
+        }
+        op_account.email = email.to_string();
+        op_account.balance = op_total_balance.saturating_sub(escrow);
+        op_account.escrow = escrow;
+        op_account.save(db).await?;
+        Ok(())
+    }
 }
 
 impl Account {
@@ -120,6 +146,24 @@ pub struct Kick {
     created_at: Datetime,
     reason: String,
     contract: RecordId,
+    node: RecordId,
+}
+
+impl Kick {
+    pub async fn kicked_in_a_day(db: &Surreal<Client>, account: &str) -> Result<Vec<Self>, Error> {
+        let mut result = db
+            .query(format!(
+                "select * from {KICK} where out = {ACCOUNT}:{account} and created_at > time::now() - 24h;"
+            ))
+            .await?;
+        let kicks: Vec<Self> = result.take(0)?;
+        Ok(kicks)
+    }
+
+    pub async fn submit(self, db: &Surreal<Client>) -> Result<(), Error> {
+        let _: Vec<Self> = db.insert(KICK).relation(self).await?;
+        Ok(())
+    }
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
@@ -158,7 +202,7 @@ impl Report {
 
 /// This is the operator obtained from the DB,
 /// however the relation is defined using OperatorRelation
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct Operator {
     pub account: RecordId,
     pub app_nodes: u64,
@@ -231,3 +275,149 @@ impl Operator {
         Ok((operator, vm_nodes, app_nodes))
     }
 }
+
+pub enum WrapperContract {
+    Vm(ActiveVmWithNode),
+    App(ActiveAppWithNode),
+}
+
+impl WrapperContract {
+    pub async fn kick_contract(
+        db: &Surreal<Client>,
+        operator_wallet: &str,
+        contract_uuid: &str,
+        reason: &str,
+    ) -> Result<u64, Error> {
+        let (
+            operator_id,
+            admin_id,
+            contract_id,
+            collected_at,
+            price_per_mint,
+            deleted_table,
+            platform_specific_query,
+        ) = if let Some(active_vm) = ActiveVmWithNode::get_by_uuid(db, contract_uuid).await? {
+            let price_per_minute = active_vm.price_per_minute();
+
+            (
+                active_vm.vm_node.operator,
+                active_vm.admin,
+                active_vm.id,
+                active_vm.collected_at,
+                price_per_minute,
+                "deleted_vm",
+                "
+                hostname = $contract.hostname,
+                public_ipv4 = $contract.public_ipv4,
+                public_ipv6 = $contract.public_ipv6,
+                dtrfs_sha = $contract.dtrfs_sha,
+                kernel_sha = $contract.kernel_sha,
+                ",
+            )
+        } else if let Some(active_app) = ActiveAppWithNode::get_by_uuid(db, contract_uuid).await? {
+            let price_per_minute = Into::<ActiveApp>::into(active_app.clone()).price_per_minute();
+
+            (
+                active_app.app_node.operator,
+                active_app.admin,
+                active_app.id,
+                active_app.collected_at,
+                price_per_minute,
+                "deleted_app",
+                "
+                app_name = $contract.app_name,
+                host_ipv4 = $contract.host_ipv4,
+                mr_enclave = $contract.mr_enclave,
+                package_url= $contract.package_url,
+                hratls_pubkey = $contract.hratls_pubkey,
+                ",
+            )
+        } else {
+            return Err(Error::ContractNotFound);
+        };
+
+        let operator = operator_id.key().to_string();
+        let admin = admin_id.key().to_string();
+
+        if operator != operator_wallet {
+            return Err(Error::AccessDenied);
+        }
+        let mut minutes_to_refund =
+            chrono::Utc::now().signed_duration_since(*collected_at).num_minutes().unsigned_abs();
+
+        let one_week_minute = 10080;
+
+        if minutes_to_refund > one_week_minute {
+            minutes_to_refund = one_week_minute;
+        }
+
+        let refund_amount = minutes_to_refund * price_per_mint;
+
+        log::debug!("Removing {refund_amount} escrow from {} and giving it to {}", operator, admin);
+
+        let transaction_query = format!(
+            "
+            BEGIN TRANSACTION;
+            LET $contract = {contract_id};
+            LET $operator_account = {operator_id};
+            LET $reason = '{reason}';
+            LET $refund_amount = {refund_amount};
+            LET $deleted_contract = {deleted_table}:{contract_uuid};
+            LET $id = record::id($contract.id);
+            LET $admin = $contract.in;
+            LET $node = $contract.out;
+
+            -- move contract into deleted state
+
+            RELATE $admin->{deleted_table}->$node
+            SET id = $id,
+                {platform_specific_query}
+                mapped_ports = $contract.mapped_ports,
+                disk_size_gb = $contract.disk_size_gb,
+                vcpus = $contract.vcpus,
+                memory_mb = $contract.memory_mb,
+                created_at = $contract.created_at,
+                deleted_at = time::now(),
+                price_per_unit = $contract.price_per_unit
+            ;
+
+            DELETE $contract;
+
+            -- calculating refund amount
+            LET $refund =  IF SELECT * FROM {KICK} WHERE out = $admin.id AND created_at > time::now() - 24h {{
+                0
+            }} ELSE IF $operator_account.escrow <= $refund_amount {{
+                $operator_account.escrow
+            }} ELSE {{
+                $refund_amount;
+            }};
+
+
+            RELATE $operator_account->{KICK}->$admin
+            SET id = $id,
+                reason = $reason,
+                contract = $deleted_contract,
+                node = $node,
+                created_at = time::now()
+            ;
+
+            -- update balances
+            UPDATE $operator_account SET escrow -= $refund;
+            IF $operator_account.escrow < 0 {{
+                THROW 'Insufficient funds.'
+            }};
+            UPDATE $admin SET balance += $refund;
+
+            SELECT * FROM $refund;
+
+            COMMIT TRANSACTION;
+            ",
+        );
+
+        log::trace!("kick_contract transaction_query: {}", &transaction_query);
+        let refunded: Option<u64> = db.query(transaction_query).await?.take(14)?;
+        let refunded_amount = refunded.ok_or(Error::FailedToCreateDBEntry("Refund".to_string()))?;
+
+        Ok(refunded_amount)
+    }
+}

src/db/mod.rs

@@ -2,7 +2,9 @@ pub mod app;
 pub mod general;
 pub mod vm;
 
-use crate::constants::{APP_NODE, DELETED_APP, DELETED_VM, NEW_APP_REQ, NEW_VM_REQ, UPDATE_VM_REQ};
+use crate::constants::{
+    APP_NODE, DELETED_APP, DELETED_VM, MIN_ESCROW, NEW_APP_REQ, NEW_VM_REQ, UPDATE_VM_REQ,
+};
 use crate::old_brain;
 use prelude::*;
 use serde::{Deserialize, Serialize};
@@ -22,14 +24,24 @@ pub enum Error {
     StdIo(#[from] std::io::Error),
     #[error(transparent)]
     TimeOut(#[from] tokio::time::error::Elapsed),
-    #[error("Failed to create account")]
-    FailedToCreateDBEntry,
+    #[error("Failed to create {0}")]
+    FailedToCreateDBEntry(String),
     #[error("Unknown Table: {0}")]
     UnknownTable(String),
     #[error("Daemon channel got closed: {0}")]
     AppDaemonConnection(#[from] tokio::sync::mpsc::error::SendError<AppDaemonMsg>),
     #[error("AppDaemon Error {0}")]
     NewAppDaemonResp(String),
+    #[error("Minimum escrow amount is {MIN_ESCROW}")]
+    MinimalEscrow,
+    #[error("Insufficient funds, deposit more tokens")]
+    InsufficientFunds,
+    #[error("Contract not found")]
+    ContractNotFound,
+    #[error("Access denied")]
+    AccessDenied,
+    #[error("Failed to delete contract {0}")]
+    FailedToDeleteContract(String),
 }
 
 pub mod prelude {

src/db/vm.rs

@@ -665,6 +665,29 @@ pub struct ActiveVmWithNode {
     pub collected_at: Datetime,
 }
 
+impl From<ActiveVmWithNode> for ActiveVm {
+    fn from(val: ActiveVmWithNode) -> Self {
+        Self {
+            id: val.id,
+            admin: val.admin,
+            vm_node: val.vm_node.id,
+            hostname: val.hostname,
+            mapped_ports: val.mapped_ports,
+            public_ipv4: val.public_ipv4,
+            public_ipv6: val.public_ipv6,
+            disk_size_gb: val.disk_size_gb,
+            vcpus: val.vcpus,
+            memory_mb: val.memory_mb,
+            dtrfs_sha: val.dtrfs_sha,
+            kernel_sha: val.kernel_sha,
+            created_at: val.created_at,
+            price_per_unit: val.price_per_unit,
+            locked_nano: val.locked_nano,
+            collected_at: val.collected_at,
+        }
+    }
+}
+
 impl ActiveVmWithNode {
     pub async fn get_by_uuid(db: &Surreal<Client>, uuid: &str) -> Result<Option<Self>, Error> {
         let contract: Option<Self> =

src/grpc/general.rs

@@ -107,24 +107,52 @@ impl BrainGeneralCli for GeneralCliServer {
 
     async fn register_operator(
         &self,
-        _req: Request<RegOperatorReq>,
+        req: Request<RegOperatorReq>,
     ) -> Result<Response<Empty>, Status> {
-        todo!();
-        // let req = check_sig_from_req(req)?;
-        // info!("Regitering new operator: {req:?}");
-        // match self.data.register_operator(req) {
-        //     Ok(()) => Ok(Response::new(Empty {})),
-        //     Err(e) => Err(Status::failed_precondition(e.to_string())),
-        // }
+        let req = check_sig_from_req(req)?;
+        log::info!("Regitering new operator: {req:?}");
+        match db::Account::operator_reg(&self.db, &req.pubkey, &req.email, req.escrow).await {
+            Ok(()) => Ok(Response::new(Empty {})),
+            Err(e) if matches!(e, db::Error::InsufficientFunds | db::Error::MinimalEscrow) => {
+                Err(Status::failed_precondition(e.to_string()))
+            }
+            Err(e) => {
+                log::info!("Failed to register operator: {e:?}");
+                Err(Status::unknown(
+                    "Unknown error. Please try again or contact the DeTEE devs team.",
+                ))
+            }
+        }
     }
 
-    async fn kick_contract(&self, _req: Request<KickReq>) -> Result<Response<KickResp>, Status> {
-        todo!();
-        // let req = check_sig_from_req(req)?;
-        // match self.data.kick_contract(&req.operator_wallet, &req.contract_uuid, &req.reason).await {
-        //     Ok(nano_lp) => Ok(Response::new(KickResp { nano_lp })),
-        //     Err(e) => Err(Status::permission_denied(e.to_string())),
-        // }
+    async fn kick_contract(&self, req: Request<KickReq>) -> Result<Response<KickResp>, Status> {
+        let req = check_sig_from_req(req)?;
+        match db::WrapperContract::kick_contract(
+            &self.db,
+            &req.operator_wallet,
+            &req.contract_uuid,
+            &req.reason,
+        )
+        .await
+        {
+            Ok(nano_lp) => Ok(Response::new(KickResp { nano_lp })),
+            Err(e)
+                if matches!(
+                    e,
+                    db::Error::ContractNotFound
+                        | db::Error::AccessDenied
+                        | db::Error::FailedToDeleteContract(_)
+                ) =>
+            {
+                Err(Status::failed_precondition(e.to_string()))
+            }
+            Err(e) => {
+                log::info!("Failed to kick contract: {e:?}");
+                Err(Status::unknown(
+                    "Unknown error. Please try again or contact the DeTEE devs team.",
+                ))
+            }
+        }
     }
 
     async fn ban_user(&self, _req: Request<BanUserReq>) -> Result<Response<Empty>, Status> {

tests/grpc_general_test.rs

@@ -211,3 +211,37 @@ async fn test_inspect_operator() {
     assert!(!inspect_response.vm_nodes.is_empty());
     assert_eq!(&inspect_response.vm_nodes[0].operator, &operator_key.pubkey);
 }
+
+#[tokio::test]
+async fn test_kick_contract() {
+    // TODO: implement seed data to test
+    // possibilities
+    // 1. vm contract
+    // 2. app contract
+    // 3. non existent contract
+    // 4. other operator's contract
+    // 5. contract collected more than a week
+    // 6. refund amount calculation
+    // 7. refund of multiple contract kick in a day for same user
+
+    env_logger::builder()
+        .filter_level(log::LevelFilter::Trace)
+        .filter_module("tungstenite", log::LevelFilter::Debug)
+        .filter_module("tokio_tungstenite", log::LevelFilter::Debug)
+        .init();
+
+    let db_conn = prepare_test_db().await.unwrap();
+    let operator_wallet = "BFopWmwcZAMF1h2PFECZNdEucdZfnZZ32p6R9ZaBiVsS";
+    let contract_uuid = "26577f1c98674a1780a86cf0490f1270";
+    let reason = "test reason";
+
+    let kick_response = surreal_brain::db::general::WrapperContract::kick_contract(
+        &db_conn,
+        &operator_wallet,
+        &contract_uuid,
+        &reason,
+    )
+    .await;
+
+    dbg!(kick_response.unwrap());
+}