pragma solidity ^0.4.24;

import './Owned.sol';
import './Team.sol';

////////////////////////////////////////////////////////////
// TODO
////////////////////////////////////////////////////////////

contract GameStation is Owned {

    ////////////////////////////////////////////////////////////
    // library
    using StringUtils for string;
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    // varialbe
    // game
    Game[] private games;

    // notify next address
    string public notice;
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    // struct
    // reporter change : condition, result
    struct Game {
        Team leftTeam;
        Team rightTeam;

        string title;           // slogan and key
        string condition;
        string league;

        string matchLocation;
        uint256 matchDate;
        uint256 maxAmount;
        uint256 minAmount;

        address[] reporters;
        uint8[] results;     // 0(even), 1(left), 2(right)
    }
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    // modifier
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    // event
    event DoWithdraw(address indexed _to, uint256 _value);
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    constructor() public {
        owner = msg.sender;
    }
    function doWithdraw() public onlyOwner returns(uint256) {
        uint256 this_balance = address(this).balance;
        owner.transfer(this_balance);

        emit DoWithdraw(owner, this_balance);
        return this_balance;
    }
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    // game control
    // (PLAN), OPEN, START, END, (CONFIRM, SETTLE, FAILCOUNT*), CLOSE
    function doOpen(string _title) public onlyOwner returns(bool) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        // condition
        if (games[uint256(i_find)].condition.equal("PLAN")) {
            games[uint256(i_find)].condition = "OPEN";
        } else {
            return false;
        }

        return true;
    }
    // by member and reporter
    function doStart(string _title) public returns(bool) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        // check reporter
        require(isReporter(_title, msg.sender) || isMember(msg.sender) || msg.sender == owner);

        // condition
        if (games[uint256(i_find)].condition.equal("OPEN")) {
            games[uint256(i_find)].condition = "START";
        } else {
            return false;
        }

        return true;
    }
    // by member and reporter
    // report result
    function doEnd(string _title, uint8 _result) public returns(bool) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        // check reporter
        require(isReporter(_title, msg.sender) || isMember(msg.sender) || msg.sender == owner);

        // condition
        if (games[uint256(i_find)].condition.equal("START")) {
            games[uint256(i_find)].condition = "END";
        }

        // regist
        if (isReporter(_title, msg.sender)) {
            registResult(_title, msg.sender, _result);
        }

        return true;
    }
    // check result
    // 0 : even, 1 : left, 2 : right, 3 : unknown (no reporter), 4 : not same
    function doConfirm(string _title) view public onlyMember returns(uint8 _result) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        // no reporter
        if (games[uint256(i_find)].reporters.length == 0) {
            return 3;
        }

        // check result
        uint8 i_result = games[uint256(i_find)].results[0];
        for (uint8 i = 1; i < games[uint256(i_find)].results.length; i++) {
            if (games[uint256(i_find)].results[i] == i_result) {
            } else {
                return 4;
            }
        }

        return i_result;
    }
    // only one time
    function doSettle(string _title, uint8 _self_result) public onlyOwner returns(bool) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        // condition
        require(games[uint256(i_find)].condition.equal("END"));

        // check confirm
        uint8 i_confirm = doConfirm(_title);
        if (i_confirm == 4) {
            // if not same, wait 24 hours
            if (block.timestamp < (games[uint256(i_find)].matchDate + 24 hours)) {
                // TODO : log
                return false;
            }
            i_confirm = _self_result;
        } else if (i_confirm == 3) {
            // no reporter
            games[uint256(i_find)].reporters.push(owner);
            games[uint256(i_find)].results.push(_self_result);
            i_confirm = _self_result;
        }

        // one more check
        if (i_confirm != _self_result) {
            return false;
        }

        address[] memory win_addr;
        uint256[] memory win_amount;
        uint256 win_balance;
        if (i_confirm == 0) {
            games[uint256(i_find)].leftTeam.doSettle(1);
            games[uint256(i_find)].rightTeam.doSettle(1);

        } else if (i_confirm == 1) {
            win_balance = address(games[uint256(i_find)].leftTeam).balance;
            (win_addr, win_amount) = games[uint256(i_find)].leftTeam.getClientAccounts();

            games[uint256(i_find)].leftTeam.doSettle(1);

            games[uint256(i_find)].rightTeam.doYield(1, win_addr, win_amount, win_balance);

        } else if (i_confirm == 2) {
            win_balance = address(games[uint256(i_find)].rightTeam).balance;
            (win_addr, win_amount) = games[uint256(i_find)].rightTeam.getClientAccounts();

            games[uint256(i_find)].rightTeam.doSettle(1);

            games[uint256(i_find)].leftTeam.doYield(1, win_addr, win_amount, win_balance);

        } else {
            return false;
        }

        return true;
    }
    // done by Team
    //function doFailAccount(string _title) public onlyOwner returns(bool) {}
    function doClose(string _title) public onlyOwner returns(bool) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        // condition
        require(games[uint256(i_find)].condition.equal("END"));

        games[uint256(i_find)].condition = "CLOSE";
        games[uint256(i_find)].leftTeam.setIsClosed(true);
        games[uint256(i_find)].rightTeam.setIsClosed(true);

        return true;
    }
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    // Team call
    function getGameConditionAndLimit(string _title) view public returns(string, uint256, uint256) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        return (games[uint256(i_find)].condition, games[uint256(i_find)].maxAmount, games[uint256(i_find)].minAmount);
    }
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    function getGameCount() view public returns(uint256) {
        return games.length;
    }
    //string _title, string _condition, string _league,
    //address _leftTeam, address _rightTeam,
    //uint256 _matchDate, string _matchLocation,
    //uint256 _maxAmount, uint256 _minAmount
    function getGameInfo(uint256 _idx) view public
        returns(string _title, string _condition, string _league,
        address _leftTeam, address _rightTeam, uint256 _matchDate, string _matchLocation,
        uint256 _maxAmount, uint256 _minAmount) {

        require(games.length > 0 && _idx < games.length);

        _title = games[_idx].title;
        _condition = games[_idx].condition;
        _league = games[_idx].league;
        _leftTeam = games[_idx].leftTeam;
        _rightTeam = games[_idx].rightTeam;
        _matchDate = games[_idx].matchDate;
        _matchLocation = games[_idx].matchLocation;
        _maxAmount = games[_idx].maxAmount;
        _minAmount = games[_idx].minAmount;
    }
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    // game
    function addGame(string _title, string _league,
        address _left_team, address _right_team, uint256 _match_after_hours, string _match_location,
        uint256 _min_amount, uint256 _max_amount, uint8 _idx)
        public onlyMember returns(bool) {
        require(bytes(_title).length > 0 && bytes(_league).length > 0 && _left_team != 0 && _right_team != 0);

        //int16 i_find = findGame(_title);
        require(findGame(_title) == -1);

        // min : 1 / 1000, max : 10 * 1
        if (_min_amount == 0)   _min_amount = 1000 * 1000 * 1000 * 1000 * 1000;
        if (_max_amount == 0)   _max_amount = 10 * 1000 * 1000 * 1000 * 1000 * 1000 * 1000;

        // create
        Game memory game;
        game.title = _title;
        game.condition = "PLAN";
        game.league = _league;
        game.leftTeam = Team(_left_team);
        game.rightTeam = Team(_right_team);
        //game.matchDate = _match_date;
        if (_match_after_hours == 0) {
            game.matchDate = block.timestamp + 24 hours;
        } else {
            game.matchDate = block.timestamp + _match_after_hours * 1 hours;
        }
        game.matchLocation = _match_location;
        game.minAmount = _min_amount;
        game.maxAmount = _max_amount;

        // idx
        if (games.length == 0 || _idx == games.length) {
            games.push(game);
        } else {
            Game memory tmp_new = game;
            Game memory tmp_old = games[_idx];
            for (uint256 i = uint256(_idx); i < games.length - 1; i++) {
                games[i] = tmp_new;
                tmp_new = tmp_old;
                tmp_old = games[i + 1];
            }
            games[games.length - 1] = tmp_new;
            games.push(tmp_old);
        }

        // Team
        Team(_left_team).setTitle(_title);
        Team(_right_team).setTitle(_title);

        return true;
    }
    function removeGame(string _title) public onlyOwner returns(bool) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);

        for (uint256 i = uint256(i_find); i < games.length - 1; i++) {
            if (i == uint256(i_find)) {
                i_find++;
            }
            games[i] = games[uint256(i_find)];
            i_find++;
        }
        games.length--;

        return true;
    }
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    // game update
    function updateReporters(string _title, address[] _reporters) public onlyMember
        returns(address[] __reporters, uint8[] __results) {
        require(bytes(_title).length > 0);

        int16 i_find = findGame(_title);
        require(i_find != -1);
        require(games[uint256(i_find)].condition.equal("PLAN"));

        if (_reporters.length == 0) {
        } else {
            games[uint256(i_find)].reporters = _reporters;
            games[uint256(i_find)].results = new uint8[](_reporters.length);
        }

        __reporters = games[uint256(i_find)].reporters;
        __results = games[uint256(i_find)].results;
    }
    function updateNotice(string _notice) public onlyOwner {
        //require(bytes(_notice).length > 0);

        notice = _notice;
    }
    ////////////////////////////////////////////////////////////

    ////////////////////////////////////////////////////////////
    // private
    function findGame(string _title) view private returns(int16) {
        if (games.length == 0)    return -1;

        for (uint256 i = 0; i < games.length; i++) {
            //emit TestLog(games[i].title, _title);
            if (games[i].title.equal(_title)) {
                return int16(i);
            }
        }

        return -1;
    }
    function isReporter(string _title, address _addr) view private returns(bool) {
        int16 i_find = findGame(_title);

        for (uint256 i = 0; i < games[uint256(i_find)].reporters.length; i++) {
            if (games[uint256(i_find)].reporters[i] == _addr) {
                return true;
            }
        }

        return false;
    }
    function registResult(string _title, address _addr, uint8 _result) private returns(bool) {
        int16 i_find = findGame(_title);

        int16 i_find_reporter = -1;
        for (uint256 i = 0; i < games[uint256(i_find)].reporters.length; i++) {
            if (games[uint256(i_find)].reporters[i] == _addr) {
                i_find_reporter = int16(i);
                break;
            }
        }

        if (i_find_reporter != -1) {
            games[uint256(i_find)].results[uint256(i_find_reporter)] = _result;
        }

        return true;
    }
    ////////////////////////////////////////////////////////////

}