Rename loaders

programs/native/lua_loader/multisig.lua

@@ -0,0 +1,50 @@
+-- M-N Multisig. Pass in a table "{m=M, n=N, tokens=T}" where M is the number
+-- of signatures required, and N is a list of the pubkeys identifying
+-- those signatures. Once M of len(N) signatures are collected, tokens T
+-- are subtracted from account 1 and given to account 4. Note that unlike
+-- Rust, Lua is one-based and that account 1 is the first account.
+
+function find(t, x)
+    for i, v in pairs(t) do
+        if v == x then
+            return i
+        end
+    end
+end
+
+function deserialize(bytes)
+    return load("return" .. bytes)()
+end
+
+local from_account,
+      serialize_account,
+      state_account,
+      to_account = table.unpack(accounts)
+
+local serialize = load(serialize_account.userdata)().serialize
+
+if #state_account.userdata == 0 then
+    local cfg = deserialize(data)
+    state_account.userdata = serialize(cfg, nil, "s")
+    return
+end
+
+local cfg = deserialize(state_account.userdata)
+local key = deserialize(data)
+
+local i = find(cfg.n, key)
+if i == nil then
+    return
+end
+
+table.remove(cfg.n, i)
+cfg.m = cfg.m - 1
+state_account.userdata = serialize(cfg, nil, "s")
+
+if cfg.m == 0 then
+    from_account.tokens = from_account.tokens - cfg.tokens
+    to_account.tokens = to_account.tokens + cfg.tokens
+
+    -- End of game.
+    state_account.tokens = 0
+end