TypeError: Indexed expression has to be a type, mapping or array (is function (uint16) returns (uint256))? - mapping

Question

Full source:https://github.com/laronlineworld/bettingMatch/blob/main/bettingMatch.sol This is a Betting Smart Contract, trying to create a mapping structure that user/wallet_address can bet on multiple matches. The problem of this betting contract is every time the user/wallet_address place a bet, the data of single mapping overwrite, how to create a mapping of value so that user/wallet_address can bet on different matches.
Place bet function:
function bet(uint16 _matchSelected, uint16 _resultSelected) public payable {
require(matchBettingActive[_matchSelected], "Betting: match voting is disabled");
//Check if the player already exist
// require(!checkIfPlayerExists(msg.sender));
//Check if the value sended by the player is higher than the min value
require(msg.value >= minimumBet);
//Set the player informations : amount of the bet, match and result selected
playerInfo[msg.sender].amountBet = msg.value;
playerInfo[msg.sender].matchSelected = _matchSelected;
playerInfo[msg.sender].resultSelected = _resultSelected;
//Add the address of the player to the players array
players.push(msg.sender);
MatchID[] storage bets = matchDetails[_matchSelected];
bets.push(MatchID(msg.sender, _matchSelected, msg.value, _resultSelected))-1;
uint16[] storage userBets = userToBets[msg.sender];
userBets.push[_matchSelected];
//Finally increment the stakes of the team selected with the player bet
if ( _resultSelected == 1){
totalBetHome[_matchSelected] += msg.value;
}
else if( _resultSelected == 2){
totalBetAway[_matchSelected] += msg.value;
}
else{
totalBetDraw[_matchSelected] += msg.value;
}
also need to sync the data in reward distribution depending of matchID distribution function:
function distributePrizes(uint16 matchFinished, uint16 teamWinner) public onlyOwner {
address[1000] memory winners;
//Temporary in memory array with fixed size. Let's choose 1000
uint256 count = 0; // This is the count for the array of winners
uint256 loserBet = 0; //This will take the value of all losers bet
uint256 winnerBet = 0; //This will take the value of all winners bet
address add;
uint256 bets;
address playerAddress;
//Check who selected the winner team
for(uint256 i = 0; i < players.length; i++){
playerAddress = players[i];
//If the player selected the winner team, we add his address to the winners array
if(playerInfo[playerAddress].matchSelected == matchFinished &&
playerInfo[playerAddress].resultSelected == teamWinner){
winners[count] = playerAddress;
count++;
}
}
//We define which bet sum is the Loser one and which one is the winner
if ( teamWinner == 1){
loserBet = totalBetAway[matchFinished] + totalBetDraw[matchFinished];
winnerBet = totalBetHome[matchFinished];
}
else if ( teamWinner == 2){
loserBet = totalBetHome[matchFinished] + totalBetDraw[matchFinished];
winnerBet = totalBetAway[matchFinished];
}
else{
loserBet = totalBetHome[matchFinished] + totalBetAway[matchFinished];
winnerBet = totalBetDraw[matchFinished];
}
//We loop through the array of winners, to give ethers to the winners
for(uint256 j = 0; j < count; j++){
//Check that the address in this fixed array is not empty
if(winners[j] != address(0))
add = winners[j];
bets = playerInfo[add].amountBet;
uint256 amountToPlayer = (bets * (10000+(loserBet*devFee/winnerBet))) / 10000;
winners[j].transfer(amountToPlayer);
}
//Reset all variables
delete playerInfo[playerAddress];
players.length = 0;
loserBet = 0;
winnerBet = 0;
//10 will be the number of matches (To improve this)
for(uint256 k = 0; k < 10; k++){
totalBetHome[k] = 0;
totalBetAway[k] = 0;
totalBetDraw[k] = 0;
}
}