/// @notice Emitted when AI detects a backtested pattern
event VisionFired(
    bytes32 indexed tokenId,   // keccak256 of token name, e.g. keccak256("BTC")
    uint8   patternType,       // Pattern code — resolve via /feed-status.json -> visions.patterns or get_visions_info MCP tool
    uint8   confidence,        // Confidence score within pattern's historical range
    uint8   direction,         // 1 = BULLISH
    uint256 price,             // Token price at detection (18 decimals)
    bytes   payload            // ABI-encoded: indicators, analysis, feeds-to-watch
);

// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

import "./interfaces/IPythiaEventRegistry.sol";
import "./interfaces/IPythiaVisionRegistry.sol";

/**
 * @title VisionVaultGuard
 * @notice Automated risk layer that reacts to Pythia Visions.
 *
 * STATE MACHINE:
 *   IDLE --> ALERT --> WATCHING --> CONFIRMED --> IDLE
 *          (vision)   (events      (enough        (auto-reset
 *           fires)     subscribed)  confirmations)  after cooldown)
 */
contract VisionVaultGuard is ConfirmedOwner {

    enum State { IDLE, ALERT, WATCHING, CONFIRMED }

    State public state;

    // Step 1: Subscribe to Visions (free, one-time)
    function subscribeToVisions() external onlyOwner {
        visionRegistry.subscribe(keccak256("BTC"));
    }

    // Step 2: Relay bot calls this when VisionFired is detected
    function processVision(
        uint8 patternType, uint8 confidence, uint8 direction,
        uint256 price, FeedWatch[] calldata feeds, string[] calldata meanings
    ) external onlyOwner {
        // Store Vision data, transition to ALERT
        // Auto-subscribe to each recommended feed as a Pythia Event
        for (uint256 i = 0; i < feeds.length; i++) {
            uint256 eventId = eventRegistry.subscribe(
                feeds[i].feedName, eventDays,
                feeds[i].condition, feeds[i].threshold
            );
        }
        // Transition to WATCHING
    }

    // Step 3: Bot reports when confirmation Events fire
    function reportConfirmation(uint256 eventId, int256 value) external onlyOwner {
        // Mark confirmation, check if enough received
        // If threshold met --> CONFIRMED, emit ActionReady
    }

    // Step 4: External contracts read state
    function isActionReady() external view returns (bool) {
        return state == State.CONFIRMED;
    }
}