import "@stdlib/ownable";
import "./messages";


contract Linker {
    index: Int;
    master: Address;
    owner: Address?;
    neighbor: Address?;

    init(index: Int, owner: Address) {
        self.index = index;
        self.owner = owner;

        let ctx: Context = context();
        self.master = ctx.sender;
    }

    receive(msg: SetLinkerNeighbor) {
        let ctx: Context = context();
        require(ctx.sender == self.master, "Invalid sender");
        self.neighbor = msg.neighbor;
    }
}