Merge pull request #176 from vmware-samples/bond_poc

Add bond issuance sample

bond_issuance_py/.env

@@ -0,0 +1,3 @@
+# SCRIPT ENV VARIABLES
+export HOST=<ethereum-client-ip>
+

bond_issuance_py/cli_parser.py

@@ -0,0 +1,64 @@
+import argparse
+import os
+from enum import Enum
+from bond_poc import deploy_exchange, set_pt, mint_st, close_issuance, swap_tokens,set_env_var,setup_w3,mint_pt,get_balance
+
+class OperationType(str, Enum):
+    """
+    class for defining operation type
+    """
+
+    DEPLOY_EXCHANGE= "deploy"
+    MINT_PT = "mint_pt"
+    MINT_ST = "mint_st"
+    SWAP = "swap"
+    CLOSE_ISSUANCE = "close_issuance"
+    GET_BALANCE = "get_balance"
+
+def main():
+    parser = argparse.ArgumentParser(description='Run Bond POC')
+    # deploy exchange and PT
+    set_env_var()
+    host = os.environ['HOST']
+
+    parser.add_argument('--PTName',  action='store', type=str, help='Name of payment token')
+    parser.add_argument('--PTSymbol', action='store',type=str, help='symbol of payment token')
+    parser.add_argument('--operation', action='store',type=str, help='value can be deploy, mint_st, mint_pt, swap, close_issuance or get_balance',required=True)
+
+    # mint PT
+    parser.add_argument('--MMNumber', action='store',type=int, help='Market maker number(permissible value is 0,1,2)')
+    parser.add_argument('--PTAmountMint', action='store',type=int, help='PT amount to be minted for a Market maker')
+
+    # swap
+    parser.add_argument('--STAmountSwap', action='store',type=int, help='ST amount to be to be swapped')
+    parser.add_argument('--ISIN', action='store',type=str, help='ISIN of a ST')
+    parser.add_argument('--Account', action='store',type=str, help='Account address')
+    parser.add_argument('--delay', action='store',type=bool, help='whether introduce delay in swap',default=False)
+
+    args = parser.parse_args()
+
+    setup_w3(host)
+
+
+    if args.operation.lower() == OperationType.DEPLOY_EXCHANGE:
+        deploy_exchange(args.PTName, args.PTSymbol)
+        set_pt()
+    elif args.operation.lower() == OperationType.MINT_ST:
+        mint_st()
+    elif args.operation.lower() == OperationType.MINT_PT:
+        mint_pt(args.MMNumber, args.PTAmountMint)
+    elif args.operation.lower() == OperationType.SWAP:
+        swap_tokens(args.MMNumber, args.STAmountSwap, args.ISIN, args.delay)
+    elif args.operation.lower() == OperationType.CLOSE_ISSUANCE:
+        close_issuance()
+    elif args.operation.lower() == OperationType.GET_BALANCE:
+        if args.ISIN:
+            get_balance(args.Account, args.ISIN)
+        else:
+            get_balance(args.Account)
+    else:
+        print("Invalid operation")
+
+
+if __name__ == "__main__":
+    main()

bond_issuance_py/contracts/Context.sol

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @dev Provides information about the current execution context, including the
+ * sender of the transaction and its data. While these are generally available
+ * via msg.sender and msg.data, they should not be accessed in such a direct
+ * manner, since when dealing with meta-transactions the account sending and
+ * paying for execution may not be the actual sender (as far as an application
+ * is concerned).
+ *
+ * This contract is only required for intermediate, library-like contracts.
+ */
+abstract contract Context {
+    function _msgSender() internal view virtual returns (address) {
+        return msg.sender;
+    }
+
+    function _msgData() internal view virtual returns (bytes calldata) {
+        return msg.data;
+    }
+}