#include <litec.h>
#include <trade.h>

#define INT_BITS 32
#define MAX_NODES 1024
#define DATA_SIZE 20

// Trie node structure
typedef struct TrieNode {
    struct TrieNode* bit[2];
} TrieNode;

TrieNode trieNodes[MAX_NODES];
int trieNodeCount = 0;

// Function prototypes
TrieNode* newTrieNode();
void insert(TrieNode* root, int number);
int findMaxXOR(TrieNode* root, int number);
int getMaxXOR(int* arr, int size);
var calculateMaximumXOR(var spreadData[]);
string generateTradingSignal(var maxXOR, var threshold);

void run() 
{
    BarPeriod = 60; // Set your bar period
    LookBack = 100; // Set your lookback period
    
    while(asset(loop("Asset1", "Asset2"))) {
        var spreadData[DATA_SIZE]; // Array to hold spread data
        // Populate spreadData with your financial data logic
        // Example: spreadData[i] = priceClose(i) - priceClose(i+1) for some i

        var threshold = 0.02;
        var maxXOR = calculateMaximumXOR(spreadData);
        string signal = generateTradingSignal(maxXOR, threshold);

        if (!strcmp(signal, "Buy")) {
            enterLong();
        } else if (!strcmp(signal, "Sell")) {
            enterShort();
        }
        // "No Action" case is implicitly handled by doing nothing
    }
}

var calculateMaximumXOR(var spreadData[]) 
{
    int intSpreadData[DATA_SIZE];
    for(int i = 0; i < DATA_SIZE; i++) {
        intSpreadData[i] = (int)(spreadData[i] * 10000); // Scale and convert to int
    }
    return getMaxXOR(intSpreadData, DATA_SIZE);
}

string generateTradingSignal(var maxXOR, var threshold) 
{
    if (maxXOR > threshold) {
        return "Buy";
    } else if (maxXOR < -threshold) {
        return "Sell";
    } else {
        return "No Action";
    }
}

TrieNode* newTrieNode() { /* ... */ }
void insert(TrieNode* root, int number) { /* ... */ }
int findMaxXOR(TrieNode* root, int number) { /* ... */ }
int getMaxXOR(int* arr, int size) { /* ... */ }