#!/bin/bash
# Simple webhook receiver for GitHub/GitLab push events
# This creates a lightweight HTTP server that triggers updates on push

PORT="${WEBHOOK_PORT:-9000}"
SECRET="${WEBHOOK_SECRET:-change-me-in-production}"
PROJECT_DIR="${PROJECT_DIR:-$(cd "$(dirname "$0")/.." && pwd)}"
LOG_FILE="${PROJECT_DIR}/logs/webhook.log"

mkdir -p "${PROJECT_DIR}/logs"

echo "========================================="
echo "MEV Bot Webhook Receiver"
echo "========================================="
echo "Listening on port: $PORT"
echo "Project: $PROJECT_DIR"
echo "Log file: $LOG_FILE"
echo ""
echo "Configure your GitHub/GitLab webhook to:"
echo "  URL: http://your-server:$PORT/webhook"
echo "  Secret: $SECRET"
echo "  Events: Push events on master branch"
echo ""
echo "Press Ctrl+C to stop"
echo "========================================="
echo ""

# Simple HTTP server using netcat and bash
while true; do
    # Listen for incoming requests
    RESPONSE=$(echo -e "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\n\r\nWebhook received" | nc -l -p "$PORT" -q 1)

    # Log the request
    echo "[$(date)] Webhook received" | tee -a "$LOG_FILE"

    # Check if it's a valid webhook request (basic check)
    if echo "$RESPONSE" | grep -q "POST /webhook"; then
        echo "[$(date)] Valid webhook request detected" | tee -a "$LOG_FILE"

        # Trigger auto-update in background
        (
            cd "$PROJECT_DIR"
            ./scripts/auto-update.sh >> "$LOG_FILE" 2>&1
        ) &

        echo "[$(date)] Auto-update triggered" | tee -a "$LOG_FILE"
    else
        echo "[$(date)] Invalid request ignored" | tee -a "$LOG_FILE"
    fi

    # Small delay before listening again
    sleep 1
done