// SPDX-License-Identifier: MIT
pragma solidity ^0.8.30;

// Eight bounded game/app statistics. Both editions enforce identical uint32
// limits through the public uint256 ABI. Only the storage field types differ.
contract StatsRegistry {
    address public immutable owner;
    uint256 public constant MAX_STAT = type(uint32).max;
    struct Stats {
        uint32 experience;
        uint32 health;
        uint32 mana;
        uint32 stamina;
        uint32 strength;
        uint32 agility;
        uint32 intelligence;
        uint32 level;
    }
    mapping(address => Stats) private stats;
    event StatsChanged(address indexed player, uint256[8] values);

    constructor() { owner = msg.sender; }

    function setStats(address player, uint256[8] calldata values) external {
        require(msg.sender == owner, "Owner only");
        writeStats(player, values);
    }

    function setMany(address[] calldata players, uint256[8][] calldata values) external {
        require(msg.sender == owner, "Owner only");
        require(players.length > 0 && players.length <= 8, "Use 1 to 8 players");
        require(players.length == values.length, "Length mismatch");
        for (uint256 i = 0; i < players.length; i++) writeStats(players[i], values[i]);
    }

    function getStats(address player) external view returns (uint256[8] memory) {
        Stats storage s = stats[player];
        return [uint256(s.experience), uint256(s.health), uint256(s.mana), uint256(s.stamina), uint256(s.strength), uint256(s.agility), uint256(s.intelligence), uint256(s.level)];
    }

    function writeStats(address player, uint256[8] calldata values) private {
        require(player != address(0), "Player required");
        for (uint256 i = 0; i < 8; i++) require(values[i] <= MAX_STAT, "Stat exceeds uint32");
        stats[player] = Stats({experience: uint32(values[0]), health: uint32(values[1]), mana: uint32(values[2]), stamina: uint32(values[3]), strength: uint32(values[4]), agility: uint32(values[5]), intelligence: uint32(values[6]), level: uint32(values[7])});
        emit StatsChanged(player, values);
    }
}