From e7c8de8eecd0e6c365134274e255ebcd5db59f4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bogdan-=C8=98tefan=20Neac=C8=99u?= <bogdan@nymtech.net>
Date: Wed, 2 Mar 2022 17:50:47 +0200
Subject: [PATCH] Finish with executing contract for pool send

---
 Cargo.lock                                    |  1 +
 clients/tauri-client/src-tauri/Cargo.toml     |  1 +
 clients/tauri-client/src-tauri/src/main.rs    | 11 ++++++++---
 common/bandwidth-claim-contract/src/msg.rs    |  1 +
 contracts/bandwidth-claim/src/error.rs        |  3 +++
 contracts/bandwidth-claim/src/lib.rs          |  3 +++
 contracts/bandwidth-claim/src/transactions.rs | 18 +++++++++++++++++-
 validator-api/src/coconut/mod.rs              |  4 ++--
 8 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 1cb29356f5..a02868f473 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -79,6 +79,7 @@ dependencies = [
  "bandwidth-claim-contract",
  "bip39",
  "coconut-interface",
+ "cosmwasm-std",
  "credentials",
  "cw3-flex-multisig",
  "network-defaults",
diff --git a/clients/tauri-client/src-tauri/Cargo.toml b/clients/tauri-client/src-tauri/Cargo.toml
index 9f2c3a59b7..4856bc4ca2 100644
--- a/clients/tauri-client/src-tauri/Cargo.toml
+++ b/clients/tauri-client/src-tauri/Cargo.toml
@@ -16,6 +16,7 @@ tauri-build = { version = "1.0.0-beta.2" }
 
 [dependencies]
 cw3-flex-multisig = "0.12.1"
+cosmwasm-std = "1.0.0-beta5"
 bip39 = "1.0.1"
 serde_json = "1.0"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/clients/tauri-client/src-tauri/src/main.rs b/clients/tauri-client/src-tauri/src/main.rs
index b7256d278a..2251c4aa61 100644
--- a/clients/tauri-client/src-tauri/src/main.rs
+++ b/clients/tauri-client/src-tauri/src/main.rs
@@ -4,6 +4,7 @@
 )]
 
 use bip39::Mnemonic;
+use cosmwasm_std::{to_binary, CosmosMsg, WasmMsg};
 use std::str::FromStr;
 use std::sync::Arc;
 
@@ -71,7 +72,7 @@ async fn deposit_funds(state: tauri::State<'_, Arc<RwLock<State>>>) -> Result<St
     nymd_url.as_ref(),
     None,
     None,
-    AccountId::from_str("nymt14hj2tavq8fpesdwxxcu44rty3hh90vhuysqrsr").ok(),
+    AccountId::from_str("nymt1sthrn5ep8ls5vzz8f9gp89khhmedahhdqdmmps").ok(),
     mnemonic,
     None,
   )
@@ -207,7 +208,7 @@ async fn verify_credential(
     nymd_url.as_ref(),
     None,
     None,
-    AccountId::from_str("nymt14hj2tavq8fpesdwxxcu44rty3hh90vhuysqrsr").ok(),
+    AccountId::from_str("nymt1sthrn5ep8ls5vzz8f9gp89khhmedahhdqdmmps").ok(),
     mnemonic,
     None,
   )
@@ -215,7 +216,11 @@ async fn verify_credential(
   let req = cw3_flex_multisig::msg::ExecuteMsg::Propose {
     title: "Spend coconut".to_string(),
     description: "Propose to spend a coconut cred".to_string(),
-    msgs: vec![],
+    msgs: vec![CosmosMsg::Wasm(WasmMsg::Execute {
+      contract_addr: "nymt1sthrn5ep8ls5vzz8f9gp89khhmedahhdqdmmps".to_string(),
+      msg: to_binary(&ExecuteMsg::SpendCredential { amount: 1000000u64 }).unwrap(),
+      funds: vec![],
+    })],
     latest: None,
   };
   let tx = nymd_client
diff --git a/common/bandwidth-claim-contract/src/msg.rs b/common/bandwidth-claim-contract/src/msg.rs
index 0f221334e8..dbf2e9b093 100644
--- a/common/bandwidth-claim-contract/src/msg.rs
+++ b/common/bandwidth-claim-contract/src/msg.rs
@@ -15,6 +15,7 @@ pub struct InstantiateMsg {}
 pub enum ExecuteMsg {
     LinkPayment { data: LinkPaymentData },
     BuyBandwidth {},
+    SpendCredential { amount: u64 },
 }
 
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
diff --git a/contracts/bandwidth-claim/src/error.rs b/contracts/bandwidth-claim/src/error.rs
index f1a2045ab7..18775deb80 100644
--- a/contracts/bandwidth-claim/src/error.rs
+++ b/contracts/bandwidth-claim/src/error.rs
@@ -35,4 +35,7 @@ pub enum ContractError {
 
     #[error("Wrong coin denomination, you must send {}", DENOM)]
     WrongDenom,
+
+    #[error("The sender is not authorized to perform this action")]
+    Unauthorized,
 }
diff --git a/contracts/bandwidth-claim/src/lib.rs b/contracts/bandwidth-claim/src/lib.rs
index 9f0e9eb8d1..aed9178e79 100644
--- a/contracts/bandwidth-claim/src/lib.rs
+++ b/contracts/bandwidth-claim/src/lib.rs
@@ -40,6 +40,9 @@ pub fn execute(
     match msg {
         ExecuteMsg::LinkPayment { data } => transactions::link_payment(deps, env, info, data),
         ExecuteMsg::BuyBandwidth {} => transactions::buy_bandwidth(deps, env, info),
+        ExecuteMsg::SpendCredential { amount } => {
+            transactions::spend_credential(deps, env, info, amount)
+        }
     }
 }
 
diff --git a/contracts/bandwidth-claim/src/transactions.rs b/contracts/bandwidth-claim/src/transactions.rs
index e91842d266..de3e8400d3 100644
--- a/contracts/bandwidth-claim/src/transactions.rs
+++ b/contracts/bandwidth-claim/src/transactions.rs
@@ -1,7 +1,7 @@
 // Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0
 
-use cosmwasm_std::{DepsMut, Env, Event, MessageInfo, Response};
+use cosmwasm_std::{Addr, BankMsg, Coin, DepsMut, Env, Event, MessageInfo, Response};
 
 use crate::error::ContractError;
 use crate::storage::{coconut, payments, status, Status};
@@ -67,6 +67,22 @@ pub(crate) fn buy_bandwidth(
     Ok(Response::new().add_event(event))
 }
 
+pub(crate) fn spend_credential(
+    _deps: DepsMut<'_>,
+    _env: Env,
+    info: MessageInfo,
+    amount: u64,
+) -> Result<Response, ContractError> {
+    if info.sender != Addr::unchecked(String::from("nymt1qwlgtx52gsdu7dtp0cekka5zehdl0uj3vqx3jd")) {
+        return Err(ContractError::Unauthorized);
+    }
+    let return_tokens = BankMsg::Send {
+        to_address: String::from("nymt1t6p4dl8nnlftvehz3jsklrd0aw458p4l6n9n4t"),
+        amount: vec![Coin::new(amount as u128, DENOM)],
+    };
+    Ok(Response::new().add_message(return_tokens))
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/validator-api/src/coconut/mod.rs b/validator-api/src/coconut/mod.rs
index bb4f27ba07..0f77ff16ae 100644
--- a/validator-api/src/coconut/mod.rs
+++ b/validator-api/src/coconut/mod.rs
@@ -88,7 +88,7 @@ pub async fn post_blind_sign(
         nymd_url.as_ref(),
         None,
         None,
-        AccountId::from_str("nymt14hj2tavq8fpesdwxxcu44rty3hh90vhuysqrsr").ok(),
+        None,
         mnemonic,
         None,
     )
@@ -170,7 +170,7 @@ pub async fn post_verify_credential(
         nymd_url.as_ref(),
         None,
         None,
-        AccountId::from_str("nymt14hj2tavq8fpesdwxxcu44rty3hh90vhuysqrsr").ok(),
+        None,
         mnemonic,
         None,
     )