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crowdfund.se
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crowdfund.se
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data campaigns[2^80](recipient, goal, deadline, contrib_total, contrib_count, contribs[2^50](sender, value))
def create_campaign(id, recipient, goal, timelimit):
if self.campaigns[id].recipient:
return(0)
self.campaigns[id].recipient = recipient
self.campaigns[id].goal = goal
self.campaigns[id].deadline = block.timestamp + timelimit
def contribute(id):
# Update contribution total
total_contributed = self.campaigns[id].contrib_total + msg.value
self.campaigns[id].contrib_total = total_contributed
# Record new contribution
sub_index = self.campaigns[id].contrib_count
self.campaigns[id].contribs[sub_index].sender = msg.sender
self.campaigns[id].contribs[sub_index].value = msg.value
self.campaigns[id].contrib_count = sub_index + 1
# Enough funding?
if total_contributed >= self.campaigns[id].goal:
send(self.campaigns[id].recipient, total_contributed)
self.clear(id)
return(1)
# Expired?
if block.timestamp > self.campaigns[id].deadline:
i = 0
c = self.campaigns[id].contrib_count
while i < c:
send(self.campaigns[id].contribs[i].sender, self.campaigns[id].contribs[i].value)
i += 1
self.clear(id)
return(2)
def progress_report(id):
return(self.campaigns[id].contrib_total)
# Clearing function for internal use
def clear(id):
if self == msg.sender:
self.campaigns[id].recipient = 0
self.campaigns[id].goal = 0
self.campaigns[id].deadline = 0
c = self.campaigns[id].contrib_count
self.campaigns[id].contrib_count = 0
self.campaigns[id].contrib_total = 0
i = 0
while i < c:
self.campaigns[id].contribs[i].sender = 0
self.campaigns[id].contribs[i].value = 0
i += 1