package net.sonickat.sklib.common;

import java.time.Instant;
import java.util.ArrayList;
import java.util.List;

public class DebugQueueEvent {
    private final String message;
    private final String timestamp;
    private final CRef affectedBlock;
    private final List<CRef> callStack; // Tracks full chain of triggers

    public DebugQueueEvent(String message, CRef affectedBlock, List<CRef> callStack) {
        this.timestamp = Instant.now().toString();
        this.message = message;
        this.affectedBlock = affectedBlock;

        // Copy call stack + add this block
        this.callStack = new ArrayList<>(callStack);
        this.callStack.add(affectedBlock);
    }

    public String getMessage() {
        return message;
    }

    public String getTimestamp() {
        return timestamp;
    }

    public CRef getAffectedBlock() {
        return affectedBlock;
    }

    public List<CRef> getCallStack() {
        return callStack;
    }

    /**
     * Formats the call stack for console output, limiting excessive length.
     */
    private String formatCallStack() {
        int size = callStack.size();
        int maxLength = DebugQueue.MAX_CONSOLE_CHAIN_LENGTH; // Controlled by DebugQueue

        if (size <= maxLength) {
            return callStack.toString(); // Show full list if small
        }

        // Show first, '...', last few elements (e.g., [..., B, C, D])
        List<CRef> reducedStack = new ArrayList<>();
        reducedStack.add(callStack.get(0)); // Always include the origin
        reducedStack.add(new CRef(0, 0, 0)); // Placeholder for "..."
        reducedStack.addAll(callStack.subList(size - (maxLength - 1), size));

        return reducedStack.toString().replace(new CRef(0, 0, 0).toString(), "...");
    }

    @Override
    public String toString() {
        return "[" + timestamp + "] (" + affectedBlock + ") <- " + formatCallStack() + " " + message;
    }
}