Initial commit of message-tributes branch

contracts/communication/MessageTribute.sol

@@ -0,0 +1,68 @@
+pragma solidity ^0.4.17;
+
+
+/*
+Inspired by one of Satoshi Nakamoto’s original suggested use cases for Bitcoin, 
+we will be introducing an economics-based anti-spam filter, in our case for 
+receiving messages and “cold” contact requests from users.
+SNT is deposited, and transferred from stakeholders to recipients upon receiving 
+a reply from the recipient.
+ */
+
+ // Uses:
+
+    /*
+    // B will request 100SNT from everyone for messages 
+    feeCatalog[B_ADDRESS][address(0)] = 100
+    */
+
+    /*
+    // A wants to send a message to B
+    // B requires that A pays 100SNT
+    feeCatalog[B_ADDRESS][A_ADDRESS] = 100;
+    ---------------------------------------
+    // A will check if B has a fee set up
+    bool hasFee = feeCatalog[B_ADDRESS][address(0)] > 0 || feeCatalog[B_ADDRESS][A_ADDRESS] > 0
+    if(hasFee){
+        uint256 fee = feeCatalog[B_ADDRESS][address(0)];
+        if(feeCatalog[B_ADDRESS][A_ADDRESS] > fee)
+            fee = feeCatalog[B_ADDRESS][A_ADDRESS];
+    }
+    ---------------------------------------
+    A will pay or decide to not send the message
+
+    ---------------------------------------
+
+    // B wants a non permanent fee for A
+    // After he pays for the first message, 
+    // All following messages will be free
+    permanentFee[B_ADDRESS][A_ADDRESS] = false;
+
+    Then after applying fee, we should set:
+    feeCatalog[B_ADDRESS][A_ADDRESS] = 0;
+   
+    ---------------------------------------
+
+    // B wants a permanent fee for A 
+    permanentFee[B_ADDRESS][A_ADDRESS] = true;
+
+    */
+contract MessageTribute {
+
+    struct Request {
+        address from;
+        address to;
+        uint256 timestamp;
+    }
+
+    mapping(address => mapping(address => uint256)) feeCatalog;
+    mapping(address => mapping(address => bool)) permanentFee;
+
+    function MessageTribute() public {
+
+    }
+
+    
+
+    
+}