add SampleOfferWithoutReward

Author: CJentzsch

SampleOfferWithoutReward.sol

@@ -0,0 +1,109 @@
+/*
+This file is part of the DAO.
+
+The DAO is free software: you can redistribute it and/or modify
+it under the terms of the GNU lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+The DAO is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU lesser General Public License for more details.
+
+You should have received a copy of the GNU lesser General Public License
+along with the DAO.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+/*
+Sample Proposal from a Contractor to the DAO.
+Feel free to use as a template for your own proposal.
+*/
+
+import "./DAO.sol";
+
+contract SampleOfferWithoutRewards {
+
+    uint public totalCosts;
+    uint public oneTimeCosts;
+    uint public dailyWithdrawLimit;
+
+    address public contractor;
+    bytes32 public IPFSHashOfTheProposalDocument;
+    uint public minDailyWithdrawLimit;
+    uint public paidOut;
+
+    uint public dateOfSignature;
+    DAO public client; // address of DAO
+    DAO public originalClient; // address of DAO who signed the contract
+    bool public isContractValid;
+
+    modifier onlyClient {
+        if (msg.sender != address(client))
+            throw;
+        _
+    }
+
+    // Prevents methods from perfoming any value transfer
+    modifier noEther() {if (msg.value > 0) throw; _}
+
+    function SampleOffer(
+        address _contractor,
+        address _client,
+        bytes32 _IPFSHashOfTheProposalDocument,
+        uint _totalCosts,
+        uint _oneTimeCosts,
+        uint _minDailyWithdrawLimit
+    ) {
+        contractor = _contractor;
+        originalClient = DAO(_client);
+        client = DAO(_client);
+        IPFSHashOfTheProposalDocument = _IPFSHashOfTheProposalDocument;
+        totalCosts = _totalCosts;
+        oneTimeCosts = _oneTimeCosts;
+        minDailyWithdrawLimit = _minDailyWithdrawLimit;
+        dailyWithdrawLimit = _minDailyWithdrawLimit;
+    }
+
+    function sign() {
+        if (msg.sender != address(originalClient) // no good samaritans give us money
+            || msg.value != totalCosts    // no under/over payment
+            || dateOfSignature != 0)      // don't sign twice
+            throw;
+        if (!contractor.send(oneTimeCosts))
+            throw;
+        dateOfSignature = now;
+        isContractValid = true;
+    }
+
+    function setDailyWithdrawLimit(uint _dailyWithdrawLimit) onlyClient noEther {
+        if (_dailyWithdrawLimit >= minDailyWithdrawLimit)
+            dailyWithdrawLimit = _dailyWithdrawLimit;
+    }
+
+    // "fire the contractor"
+    function returnRemainingEther() onlyClient {
+        if (originalClient.DAOrewardAccount().call.value(this.balance)())
+            isContractValid = false;
+    }
+
+    function getDailyPayment() {
+        if (msg.sender != contractor)
+            throw;
+        uint amount = (now - dateOfSignature + 1 days) / (1 days) * dailyWithdrawLimit - paidOut;
+        if (contractor.send(amount))
+            paidOut += amount;
+    }
+
+    // Change the client DAO by giving the new DAO's address
+    // warning: The new DAO must come either from a split of the original
+    // DAO or an update via `newContract()` so that it can claim rewards
+    function updateClientAddress(DAO _newClient) onlyClient noEther {
+        client = _newClient;
+    }
+
+    function () {
+        throw; // this is a business contract, no donations
+    }
+}