66 lines
1.9 KiB
Plaintext
66 lines
1.9 KiB
Plaintext
type store is
|
|
record
|
|
goal : nat;
|
|
deadline : timestamp;
|
|
backers : map (address, nat);
|
|
funded : bool
|
|
end
|
|
|
|
const foo : store = map "X" -> 10; "Y" -> 11 end
|
|
|
|
entrypoint contribute (storage store : store;
|
|
const sender : address;
|
|
const amount : mutez)
|
|
: store * list (operation) is
|
|
var operations : list (operation) := []
|
|
begin
|
|
if now > store.deadline then
|
|
fail "Deadline passed"
|
|
else
|
|
case store.backers[sender] of
|
|
None -> //store.backers[sender] := amount
|
|
patch store.backers with map sender -> amount end
|
|
| _ -> skip
|
|
end
|
|
end with (store, operations)
|
|
|
|
entrypoint withdraw (storage store : store; const sender : address)
|
|
: store * list (operation) is
|
|
var operations : list (operation) := []
|
|
begin
|
|
if sender = owner then
|
|
if now >= store.deadline then
|
|
if balance >= store.goal then
|
|
begin
|
|
patch store with record funded = True end;
|
|
// patch store.funded with True end;
|
|
// store.funded := True;
|
|
operations := [Transfer (owner, balance)]
|
|
end
|
|
else fail "Below target"
|
|
else fail "Too soon"
|
|
else skip
|
|
end with (store, operations)
|
|
|
|
entrypoint claim (storage store : store; const sender : address)
|
|
: store * list (operation) is
|
|
var operations : list (operation) := []
|
|
var amount : mutez := 0
|
|
begin
|
|
if now <= store.deadline then
|
|
fail "Too soon"
|
|
else
|
|
case store.backers[sender] of
|
|
None ->
|
|
fail "Not a backer"
|
|
| Some (amount) ->
|
|
if balance >= store.goal || store.funded then
|
|
fail "Cannot refund"
|
|
else
|
|
begin
|
|
operations := [Transfer (sender, amount)];
|
|
// patch store.backers without key sender;
|
|
end
|
|
end
|
|
end with (store, operations)
|