More payments code

Cargo.lock

@@ -729,6 +729,7 @@ dependencies = [
  "config",
  "futures 0.3.25",
  "model",
+ "payment_adapter",
  "rumqttc",
  "serde",
  "strum",

crates/channels/Cargo.toml

@@ -10,7 +10,7 @@ emails = []
 search = []
 stocks = []
 orders = []
-payments = []
+payments = ['payment_adapter']
 default = ['accounts', 'carts', 'emails', 'search', 'stocks', 'orders', 'payments']
 
 [dependencies]
@@ -27,3 +27,4 @@ thiserror = { version = "1.0.37" }
 tokio = { version = "1.21.2", features = ['full'] }
 tracing = { version = "0.1.37" }
 whatlang = { version = "0.16.2" }
+payment_adapter = { path = "../payment_adapter", optional = true }

crates/channels/src/payments.rs

@@ -1,5 +1,6 @@
 // use rumqttc::QoS;
 
+pub use payment_adapter::*;
 // use crate::AsyncClient;
 
 pub static CLIENT_NAME: &str = "payments";
@@ -12,13 +13,19 @@ pub enum Error {
 
 #[derive(Debug, Copy, Clone)]
 pub enum Topic {
-    Succeed,
+    Pending,
+    WaitingForConfirmation,
+    Completed,
+    Canceled,
 }
 
 impl Topic {
     pub fn to_str(self) -> &'static str {
         match self {
-            Topic::Succeed => "payments/succeed",
+            Topic::Completed => "payments/completed",
+            Topic::Canceled => "payments/canceled",
+            Topic::Pending => "payments/pending",
+            Topic::WaitingForConfirmation => "payments/waiting_for_confirmation",
         }
     }
 }
@@ -45,7 +52,27 @@ pub mod start_payment {
     use super::Error;
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
-    pub struct Input {}
+    pub struct Input {
+        pub adapter_name: String,
+        pub create_payment: payment_adapter::CreatePayment,
+    }
+
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub redirect_url: String,
+    }
+
+    pub type Output = Result<Details, Error>;
+}
+
+pub mod notification {
+    use super::Error;
+
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Input {
+        pub adapter_name: String,
+        pub status: String,
+    }
 
     #[derive(Debug, serde::Serialize, serde::Deserialize)]
     pub struct Details {}
@@ -53,14 +80,66 @@ pub mod start_payment {
     pub type Output = Result<Details, Error>;
 }
 
+pub mod cancel {
+    use model::Price;
+
+    use super::Error;
+
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub enum RefundType {
+        /// Refund entire payment
+        Full,
+        /// Refund only part given in enum
+        Partial(Price),
+    }
+
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Input {
+        pub adapter_name: String,
+        pub refund: RefundType,
+        pub provider_order_id: String,
+        pub description: String,
+    }
+
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {}
+
+    pub type Output = Result<Details, Error>;
+}
+
+/// List of available payment adapters
+pub mod adapters {
+    use super::Error;
+
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Input {}
+
+    #[derive(Debug, serde::Serialize, serde::Deserialize)]
+    pub struct Details {
+        pub names: Vec<String>,
+    }
+
+    pub type Output = Result<Details, Error>;
+}
+
 pub mod rpc {
     use config::SharedAppConfig;
 
-    use crate::payments::start_payment;
+    use crate::payments::{adapters, cancel, notification, start_payment};
 
     #[tarpc::service]
     pub trait Payments {
+        /// User manually started payment procedure
         async fn start_payment(input: start_payment::Input) -> start_payment::Output;
+
+        /// User manually cancelled order
+        async fn cancel(input: cancel::Input) -> cancel::Output;
+
+        /// Received update status notification from payment service
+        async fn notification(input: notification::Input) -> notification::Output;
+
+        /// List of available adapters
+        async fn adapters(input: adapters::Input) -> adapters::Output;
     }
 
     pub async fn create_client(config: SharedAppConfig) -> PaymentsClient {
@@ -90,6 +169,6 @@ pub mod mqtt {
     use crate::AsyncClient;
 
     pub fn create_client(config: SharedAppConfig) -> (AsyncClient, EventLoop) {
-        crate::mqtt::create_client(CLIENT_NAME, config.lock().stocks_manager().mqtt_addr())
+        crate::mqtt::create_client(CLIENT_NAME, config.lock().payments_manager().mqtt_addr())
     }
 }

crates/payment_adapter_pay_u/src/model.rs

@@ -145,7 +145,7 @@ pub struct Refund {
 pub struct Status {
     /// One of
     /// * `PENDING`: Payment is currently being processed.
-    /// * `WAITING_FOR_CONFIRMATION`: PayU is currently waiting for the merchant
+    /// * `WaitingForConfirmation`: PayU is currently waiting for the merchant
     ///   system to receive (capture) the payment. This status is set if
     ///   auto-receive is disabled on the merchant system.
     /// * `COMPLETED`: Payment has been accepted. PayU will pay out the funds

crates/payment_adapter_pay_u/src/notify.rs

@@ -20,7 +20,7 @@
 //! Verification of notifications signature for more information.
 //!
 //! Notifications are sent for orders in the following statuses: PENDING,
-//! WAITING_FOR_CONFIRMATION, COMPLETED, CANCELED.
+//! WaitingForConfirmation, COMPLETED, CANCELED.
 //!
 //! Note: if you filter IP addresses, remember to allow IPs used by PayU to send
 //! the notifications. These are:
@@ -78,7 +78,7 @@ pub struct StatusUpdate {
     pub local_receipt_date_time: Option<String>,
     /// Array of objects related to transaction identification. In case of
     /// statuses:
-    /// * `"WAITING_FOR_CONFIRMATION"` and `"COMPLETED"` - Contains one element
+    /// * `"WaitingForConfirmation"` and `"COMPLETED"` - Contains one element
     ///   with two parameters: name and value,
     /// * `"PENDING"` - may contain object with aforementioned parameters or it
     ///   can be empty.

crates/payment_manager/src/main.rs

@@ -1,21 +1,25 @@
+use std::collections::HashMap;
 use std::fs::read_dir;
 use std::path::PathBuf;
 use std::str::FromStr;
+use std::sync::{Arc, RwLock};
 
 use config::{AppConfig, UpdateConfig};
 use payment_adapter::{HttpMethod, HttpRequest, Item, Product};
 use reqwest::header::{HeaderMap, HeaderName, HeaderValue};
 use wapc::WasiParams;
-use wapc_pool::HostPoolBuilder;
+use wapc_pool::{HostPool, HostPoolBuilder};
 
 // mod actions;
 // mod context;
 // mod db;
-// mod mqtt;
+mod mqtt;
 // pub mod pay_u_adapter;
-// mod rpc;
+mod rpc;
 // pub mod t_pay_adapter;
 
+pub type Modules = Arc<RwLock<HashMap<String, HostPool>>>;
+
 #[derive(gumdrop::Options)]
 pub struct Opts {
     pub adapters_path: Option<PathBuf>,
@@ -38,7 +42,7 @@ async fn main() {
     let opts: Opts = gumdrop::parse_args_default_or_exit();
 
     let config = config::default_load(&opts);
-    let _payment_config = config.lock().payment().clone();
+    let mut modules;
 
     {
         let adapters_path = config.lock().payment().adapters_path.clone();
@@ -49,12 +53,18 @@ async fn main() {
                 adapters, e
             )
         });
-        for file in dir.filter_map(|r| r.map(|r| r.path()).ok()) {
-            tracing::info!("{:?}", file);
-            if file.extension().and_then(|s| s.to_str()) != Some("wasm") {
-                continue;
+        let files = dir
+            .filter_map(|r| r.map(|r| r.path()).ok())
+            .filter(|file| file.extension().and_then(|s| s.to_str()) == Some("wasm"))
+            .collect::<Vec<_>>();
+
+        if files.is_empty() {
+            panic!("No payment adapters found in adapters directory");
         }
 
+        modules = HashMap::with_capacity(files.len());
+
+        for file in files {
             let module = std::fs::read(&file).unwrap();
             let engine = wasmtime_provider::WasmtimeEngineProviderBuilder::new()
                 .module_bytes(&module)
@@ -77,13 +87,18 @@ async fn main() {
                 })
                 .max_threads(5)
                 .build();
+            let name = pool
+                .call("name", vec![])
+                .await
+                .unwrap_or_else(|e| panic!("Failed to load adapter {file:?} `name`. {e}"));
+            let name: String = wapc_codec::messagepack::deserialize(&name)
+                .unwrap_or_else(|e| panic!("Adapter `name` ({name:?}) is not valid string. {e}"));
 
-            {
             let msg = config
                 .lock()
                 .payment()
                 .providers
-                    .get("pay_u")
+                .get(&name)
                 .cloned()
                 .unwrap_or_default();
 
@@ -92,6 +107,10 @@ async fn main() {
                 .await
                 .unwrap();
 
+            modules.insert(name, pool);
+        }
+
+        for pool in modules.values() {
             let msg = payment_adapter::CreatePayment {
                     buyer: payment_adapter::Buyer {
                         email: "hello@example.com".to_string(),
@@ -134,12 +153,12 @@ async fn main() {
             tracing::info!("create payment res {:?}", result)
         }
     }
-    }
 
     // let db = db::Database::build(config.clone()).await;
 
-    // let mqtt_client = mqtt::start(config.clone(), db.clone()).await;
-    // rpc::start(config, db, mqtt_client).await;
+    let modules = Arc::new(RwLock::new(modules));
+    let mqtt_client = mqtt::start(config.clone(), modules.clone()).await;
+    rpc::start(config, mqtt_client, modules.clone()).await;
 }
 
 // #[tracing::instrument]

crates/payment_manager/src/mqtt.rs

@@ -0,0 +1,31 @@
+use config::SharedAppConfig;
+use rumqttc::{Event, Incoming};
+
+use crate::db::Database;
+use crate::Modules;
+
+pub async fn start(config: SharedAppConfig, _modules: Modules) -> channels::AsyncClient {
+    let (client, mut event_loop) = channels::payments::mqtt::create_client(config);
+
+    let spawn_client = client.clone();
+    tokio::spawn(async move {
+        let _client = spawn_client.clone();
+        loop {
+            let notification = event_loop.poll().await;
+
+            match notification {
+                Ok(Event::Incoming(Incoming::Publish(publish))) => match publish.topic.as_str() {
+                    _ => {}
+                },
+                Ok(Event::Incoming(_incoming)) => {}
+                Ok(Event::Outgoing(_outgoing)) => {}
+                Err(e) => {
+                    tracing::warn!("{}", e);
+                }
+            }
+        }
+        // tracing::info!("Mqtt channel closed");
+    });
+
+    client
+}

crates/payment_manager/src/rpc.rs

@@ -0,0 +1,51 @@
+use channels::payments::rpc::Payments;
+use channels::payments::start_payment::{Input, Output};
+use channels::payments::{adapters, cancel, notification, start_payment};
+use channels::AsyncClient;
+use config::SharedAppConfig;
+use tarpc::context;
+
+use crate::Modules;
+
+pub struct PaymentsServer {
+    pub config: SharedAppConfig,
+    pub mqtt_client: AsyncClient,
+    pub modules: Modules,
+}
+
+#[tarpc::server]
+impl Payments for PaymentsServer {
+    async fn start_payment(self, _: context::Context, input: Input) -> Output {
+        todo!()
+    }
+
+    async fn cancel(self, _: context::Context, input: cancel::Input) -> cancel::Output {
+        todo!()
+    }
+
+    async fn notification(
+        self,
+        _: context::Context,
+        input: notification::Input,
+    ) -> notification::Output {
+        todo!()
+    }
+
+    async fn adapters(self, _: context::Context, input: adapters::Input) -> adapters::Output {
+        todo!()
+    }
+}
+
+pub async fn start(config: SharedAppConfig, mqtt_client: AsyncClient, modules: Modules) {
+    let port = { config.lock().stocks_manager().rpc_port };
+
+    channels::rpc::start("orders", port, || {
+        PaymentsServer {
+            config: config.clone(),
+            mqtt_client: mqtt_client.clone(),
+            modules,
+        }
+        .serve()
+    })
+    .await;
+}

vendor/pay_u/src/lib.rs

@@ -699,7 +699,7 @@ pub struct PayMethod {
 pub struct Status {
     /// One of
     /// * `PENDING`: Payment is currently being processed.
-    /// * `WAITING_FOR_CONFIRMATION`: PayU is currently waiting for the merchant
+    /// * `WaitingForConfirmation`: PayU is currently waiting for the merchant
     ///   system to receive (capture) the payment. This status is set if
     ///   auto-receive is disabled on the merchant system.
     /// * `COMPLETED`: Payment has been accepted. PayU will pay out the funds

vendor/pay_u/src/notify.rs

@@ -20,7 +20,7 @@
 //! Verification of notifications signature for more information.
 //!
 //! Notifications are sent for orders in the following statuses: PENDING,
-//! WAITING_FOR_CONFIRMATION, COMPLETED, CANCELED.
+//! WaitingForConfirmation, COMPLETED, CANCELED.
 //!
 //! Note: if you filter IP addresses, remember to allow IPs used by PayU to send
 //! the notifications. These are:
@@ -77,7 +77,7 @@ pub struct StatusUpdate {
     pub local_receipt_date_time: Option<String>,
     /// Array of objects related to transaction identification. In case of
     /// statuses:
-    /// * `"WAITING_FOR_CONFIRMATION"` and `"COMPLETED"` - Contains one element
+    /// * `"WaitingForConfirmation"` and `"COMPLETED"` - Contains one element
     ///   with two parameters: name and value,
     /// * `"PENDING"` - may contain object with aforementioned parameters or it
     ///   can be empty.