From 9215ef4d8641775011dea2060802058c54bb7e77 Mon Sep 17 00:00:00 2001
From: Mohamed Sohail <kamikazechaser@noreply.localhost>
Date: Tue, 8 Feb 2022 10:40:59 +0000
Subject: [PATCH] add: GFT transfer tracker (#2)

* specifically tracks GFT transfers
* fix: replace space char

TODO: generic erc20 transfer with token lookup

Co-authored-by: Mohammed Sohail <sohailsameja@gmail.com>
Reviewed-on: https://git.grassecon.net/grassrootseconomics/cic-monitor/pulls/2
Co-authored-by: Mohamed Sohail <kamikazechaser@noreply.localhost>
Co-committed-by: Mohamed Sohail <kamikazechaser@noreply.localhost>
---
 .gitignore            |  2 ++
 ge_render/__init__.py | 29 ++++++++++++++++++++++++-----
 2 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/.gitignore b/.gitignore
index 00bdd50..5d20ba7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@ __pycache__
 *.egg-info
 *.pyc
 *.d/
+.venv
+state
\ No newline at end of file
diff --git a/ge_render/__init__.py b/ge_render/__init__.py
index ca245ce..3789df1 100644
--- a/ge_render/__init__.py
+++ b/ge_render/__init__.py
@@ -9,7 +9,7 @@ from cic_contracts.erc20 import ERC20
 from chainlib.eth.error import RequestMismatchException
 from chainlib.eth.address import AddressChecksum
 from chainlib.eth.constant import ZERO_ADDRESS
-from hexathon import uniform
+from hexathon import uniform, add_0x
 
 logg = logging.getLogger(__name__)
 
@@ -57,7 +57,7 @@ def apply(c, s, chain_spec, conn, block, tx, db_session=None):
 def account_registry_add(c, s, chain_spec, conn, block, tx):
     try:
         o = AccountsIndex.parse_add_request(tx.payload)
-        s = '{} block {} tx {} account registration for {}'.format(c, block.number, tx.index, o[0])
+        s = '{} block {} tx {} account registration for {}'.format(c, block.number, tx.index, o[0])
         return s
     except RequestMismatchException as e:
         pass
@@ -101,6 +101,22 @@ def ge_faucet_gift(i, s, chain_spec, conn, block, tx):
     return None
 
 
+def erc20_transfer(c, s, chain_spec, conn, block, tx):
+    t = ERC20(chain_spec)
+
+    try:
+        transfer_data = t.parse_transfer_request(tx.payload)
+
+        token_sender = tx.outputs[0]
+        token_recipient = transfer_data[0]
+        token_value = transfer_data[1]
+
+        return '{} GFT {} sent from {} to {}'.format(c, token_value ,add_0x(token_sender), add_0x(token_recipient))
+    except RequestMismatchException as e:
+        pass
+    
+    return None
+
 
 sigmap = {
         'evm:byzantium:8996:bloxberg': {
@@ -112,6 +128,9 @@ addrmap = {
         'evm:byzantium:8996:bloxberg': {
             'd462aadb7251d418e6a9e4f205928f678e1c6b3b': {
                 '63e4bff4': ge_faucet_gift,
-                    },
-                }
-        }
+            },
+            '32e860c2a0645d1b7b005273696905f5d6dc5d05': {
+                'a9059cbb': erc20_transfer,
+            },
+        },
+    }