tonb/sources/foundation.tact

import "./messages";



struct Proposal {
    type: Int;  // 0 - Blacklist, 1 - Full liquidation, 2 - Change percents
    data: Cell;   // Address for blacklist, Distribution for percents
}

struct Vote {
    id: Int;
    votes: map[Int]Int;   // -1 - no vote, 0 - abstain, 1 - yes, 2 - no
    vote_end: Int;
    proposal: Proposal;
    quorum_percent: Int;
    ended: Bool = false;
    result: Bool?;  // None - no result, True - passed, False - failed
}

fun get_message(prop: Proposal): Cell {
    if (prop.type == 0) {
        return BlacklistWallet {
            wallet: prop.data.readAddress()
        }.asCell();
    }
}

contract Foundation {
    founders: AddressList;  // aka superadmins
    admins: Distribution/* Distribution is defined in messages.tact */;
    tonb: Address;
    votes: map[Int]Vote;
    n_votes: Int;

    init(admins: Distribution, founders: AddressList, tonb: Address) {
        self.admins = admins;
        self.founders = founders;
        self.tonb = tonb;
    }

    receive(msg: FinishVote) {
        require(msg.vote_id < self.n_votes, "Invalid vote id");
        let vote: Vote = self.votes.get(msg.vote_id)!!;
        require(vote.ended == false, "Vote already ended");
        require(vote.vote_end < now(), "Vote is not finished yet");
        let n_yes: Int = 0;
        let n_no: Int = 0;
        let n_abstain: Int = 0;
        let i: Int = 0;
        while (i < self.admins.addresses.length) {
            let vote_: Int = vote.votes.get(i)!!;
            if (vote_i == 1) {
                n_yes = n_yes + 1;
            } else if (vote_i == 2) {
                n_no = n_no + 1;
            } else if (vote_i == 0) {
                n_abstain = n_abstain + 1;
            }
            i = i + 1;
        }
        let n_total: Int = n_yes + n_no + n_abstain;
        let present: Int = n_total * 100 / self.admins.addresses.length;
        if (present < vote.quorum_percent) {
            vote.result = false;
        } else if (n_yes > n_no) {
            vote.result = true;
        } else {
            vote.result = false;
        }
        vote.ended = true;
        self.votes.set(msg.vote_id, vote);

        if (vote.result == true) {
            let msg: Cell = get_message(vote.proposal);
            send(SendParameters{
                to: self.tonb,
                value: 0,
                mode: SendRemainingValue,
                body: msg
            });
        }

    }

    receive(msg: Vote) {
        require(msg.adminIndex < self.admins.addresses.length, "Invalid admin index")
        let ctx: Context = context();
        require(ctx.sender == self.admins.addresses.addresses.get(msg.adminIndex), "Only an admin can vote");
        require(msg.vote_id < self.n_votes, "Invalid vote id");
        let vote: Vote = self.votes.get(msg.vote_id)!!;
        require(vote.ended == false, "Vote already ended");
        require(vote.vote_end > now(), "Vote is finished");
        require(msg.vote >= 0 && msg.vote <= 2, "Invalid vote");
        vote.votes.set(msg.adminIndex, msg.vote);
        self.votes.set(msg.vote_id, vote);
    }

    receive(msg: InitiateBlacklistVote) {
        let ctx: Context = context();
        require(ctx.sender == self.admins.addresses.addresses.get(msg.adminIndex), "Only an admin can initiate a vote");
        require(ctx.value >= ton("1.0"), "Voting requires at least 1 ton for the fees")
        require(msg.quorum_percent > 20 && msg.quorum_percent <= 100, "Invalid quorum percent");
        require(msg.vote_time > 0 && msg.vote_time < 3 * 24 * 3600, "Invalid vote time");
        let vote = Vote {
            id: self.n_votes,
            vote_end: now() + msg.vote_time,
            proposal: Proposal {
                type: 0,
                data: msg.address
            },
            quorum_percent: msg.quorum_percent
        };
        let i: Int = 0;
        while (i < self.admins.addresses.length) {
            vote.votes.set(i, -1);
            i = i + 1;
        }
        self.votes.set(self.n_votes, vote);
        self.n_votes = self.n_votes + 1;
    }

    receive(msg: InitiateDistributionVote) {
        let ctx: Context = context();
        require(ctx.sender == self.admins.addresses.addresses.get(msg.adminIndex), "Only an admin can initiate a vote");
        require(ctx.value >= ton("1.0"), "Voting requires at least 1 ton for the fees")
        require(msg.quorum_percent > 20 && msg.quorum_percent <= 100, "Invalid quorum percent");
        require(msg.vote_time > 0 && msg.vote_time < 3 * 24 * 3600, "Invalid vote time");
        let vote = Vote {
            id: self.n_votes,
            vote_end: now() + msg.vote_time,
            proposal: Proposal {
                type: 2,
                data: msg.distribution
            },
            quorum_percent: msg.quorum_percent
        };
        let i: Int = 0;
        while (i < self.admins.addresses.length) {
            vote.votes.set(i, -1);
            i = i + 1;
        }
        self.votes.set(self.n_votes, vote);
        self.n_votes = self.n_votes + 1;
    }

    receive(msg: InitiateFullLiquidationVote) {
        let ctx: Context = context();
        require(ctx.sender == self.admins.addresses.addresses.get(msg.adminIndex), "Only an admin can initiate a vote");
        require(ctx.value >= ton("1.0"), "Voting requires at least 1 ton for the fees")
        require(msg.quorum_percent > 85 && msg.quorum_percent <= 100, "Invalid quorum percent");
        require(msg.vote_time > 0 && msg.vote_time < 3 * 24 * 3600, "Invalid vote time");
        let vote = Vote {
            id: self.n_votes,
            vote_end: now() + msg.vote_time,
            proposal: Proposal {
                type: 1,
                data: beginCell().endCell()
            },
            quorum_percent: msg.quorum_percent
        };
        let i: Int = 0;
        while (i < self.admins.addresses.length) {
            vote.votes.set(i, -1);
            i = i + 1;
        }
        self.votes.set(self.n_votes, vote);
        self.n_votes = self.n_votes + 1;
    }
}