"use client";

import { useOpenPanel } from "@openpanel/nextjs";
import { useCallback } from "react";
import {
  trackRybbitProductView,
  trackRybbitAddToCart,
  trackRybbitRemoveFromCart,
  trackRybbitCheckoutStarted,
  trackRybbitCheckoutStep,
  trackRybbitOrderCompleted,
  trackRybbitSearch,
  trackRybbitExternalLink,
  trackRybbitCartView,
  trackRybbitWishlistAdd,
  trackRybbitUserLogin,
  trackRybbitUserRegister,
  trackRybbitNewsletterSignup,
} from "@/lib/services/RybbitService";

export function useAnalytics() {
  const op = useOpenPanel();

  // Helper to track with both OpenPanel and Rybbit
  const trackDual = useCallback((
    eventName: string, 
    openPanelData: Record<string, any>
  ) => {
    // OpenPanel tracking
    try {
      op.track(eventName, openPanelData);
    } catch (e) {
      console.error("[OpenPanel] Tracking error:", e);
    }

    // Rybbit tracking (fire-and-forget)
    try {
      switch (eventName) {
        case "product_viewed":
          trackRybbitProductView({
            id: openPanelData.product_id,
            name: openPanelData.product_name,
            price: openPanelData.price,
            currency: openPanelData.currency,
            category: openPanelData.category,
          });
          break;
        case "add_to_cart":
          trackRybbitAddToCart({
            id: openPanelData.product_id,
            name: openPanelData.product_name,
            price: openPanelData.price,
            currency: openPanelData.currency,
            quantity: openPanelData.quantity,
            variant: openPanelData.variant,
          });
          break;
        case "remove_from_cart":
          trackRybbitRemoveFromCart({
            id: openPanelData.product_id,
            name: openPanelData.product_name,
            quantity: openPanelData.quantity,
          });
          break;
        case "cart_view":
          trackRybbitCartView({
            total: openPanelData.cart_total,
            currency: openPanelData.currency,
            item_count: openPanelData.item_count,
          });
          break;
        case "checkout_started":
          trackRybbitCheckoutStarted({
            total: openPanelData.cart_total,
            currency: openPanelData.currency,
            item_count: openPanelData.item_count,
            items: openPanelData.items,
          });
          break;
        case "checkout_step":
          trackRybbitCheckoutStep(openPanelData.step, openPanelData);
          break;
        case "order_completed":
          trackRybbitOrderCompleted({
            order_id: openPanelData.order_id,
            order_number: openPanelData.order_number,
            total: openPanelData.total,
            currency: openPanelData.currency,
            item_count: openPanelData.item_count,
            shipping_cost: openPanelData.shipping_cost,
            customer_email: openPanelData.customer_email,
            payment_method: openPanelData.payment_method,
          });
          break;
        case "search":
          trackRybbitSearch(openPanelData.query, openPanelData.results_count);
          break;
        case "external_link_click":
          trackRybbitExternalLink(openPanelData.url, openPanelData.label);
          break;
        case "wishlist_add":
          trackRybbitWishlistAdd({
            id: openPanelData.product_id,
            name: openPanelData.product_name,
          });
          break;
        case "user_login":
          trackRybbitUserLogin(openPanelData.method);
          break;
        case "user_register":
          trackRybbitUserRegister(openPanelData.method);
          break;
        case "newsletter_signup":
          trackRybbitNewsletterSignup(openPanelData.email, openPanelData.source);
          break;
      }
    } catch (e) {
      console.warn("[Rybbit] Tracking error:", e);
    }
  }, [op]);

  const trackProductView = useCallback((product: {
    id: string;
    name: string;
    price: number;
    currency: string;
    category?: string;
  }) => {
    trackDual("product_viewed", {
      product_id: product.id,
      product_name: product.name,
      price: product.price,
      currency: product.currency,
      category: product.category,
      source: "client",
    });
  }, [trackDual]);

  const trackAddToCart = useCallback((product: {
    id: string;
    name: string;
    price: number;
    currency: string;
    quantity: number;
    variant?: string;
  }) => {
    trackDual("add_to_cart", {
      product_id: product.id,
      product_name: product.name,
      price: product.price,
      currency: product.currency,
      quantity: product.quantity,
      variant: product.variant,
      source: "client",
    });
  }, [trackDual]);

  const trackRemoveFromCart = useCallback((product: {
    id: string;
    name: string;
    quantity: number;
  }) => {
    trackDual("remove_from_cart", {
      product_id: product.id,
      product_name: product.name,
      quantity: product.quantity,
      source: "client",
    });
  }, [trackDual]);

  const trackCartView = useCallback((cart: {
    total: number;
    currency: string;
    item_count: number;
  }) => {
    trackDual("cart_view", {
      cart_total: cart.total,
      currency: cart.currency,
      item_count: cart.item_count,
      source: "client",
    });
  }, [trackDual]);

  const trackCheckoutStarted = useCallback((cart: {
    total: number;
    currency: string;
    item_count: number;
    items: Array<{
      id: string;
      name: string;
      quantity: number;
      price: number;
    }>;
  }) => {
    trackDual("checkout_started", {
      cart_total: cart.total,
      currency: cart.currency,
      item_count: cart.item_count,
      items: cart.items,
      source: "client",
    });
  }, [trackDual]);

  const trackCheckoutStep = useCallback((step: string, data?: Record<string, unknown>) => {
    trackDual("checkout_step", {
      step,
      ...data,
      source: "client",
    });
  }, [trackDual]);

  const trackOrderCompleted = useCallback(async (order: {
    order_id: string;
    order_number: string;
    total: number;
    currency: string;
    item_count: number;
    shipping_cost?: number;
    customer_email?: string;
    payment_method?: string;
  }) => {
    console.log("[Analytics] Tracking order:", order.order_number);

    // Track with both OpenPanel and Rybbit
    trackDual("order_completed", {
      order_id: order.order_id,
      order_number: order.order_number,
      total: order.total,
      currency: order.currency,
      item_count: order.item_count,
      shipping_cost: order.shipping_cost,
      customer_email: order.customer_email,
      payment_method: order.payment_method,
      source: "client",
    });

    // OpenPanel revenue tracking
    try {
      op.revenue(order.total, {
        currency: order.currency,
        transaction_id: order.order_number,
        source: "client",
      });
    } catch (e) {
      console.error("[OpenPanel] Revenue tracking error:", e);
    }

    // Server-side tracking for reliability
    try {
      const response = await fetch("/api/analytics/track-order", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          orderId: order.order_id,
          orderNumber: order.order_number,
          total: order.total,
          currency: order.currency,
          itemCount: order.item_count,
          customerEmail: order.customer_email,
          paymentMethod: order.payment_method,
          shippingCost: order.shipping_cost,
        }),
      });

      if (!response.ok) {
        console.error("[Server Analytics] Failed:", await response.text());
      }
    } catch (e) {
      console.error("[Server Analytics] API call failed:", e);
    }
  }, [op, trackDual]);

  const trackSearch = useCallback((query: string, results_count: number) => {
     trackDual("search", {
       query,
       results_count,
       source: "client",
     });
  }, [trackDual]);

  const trackExternalLink = useCallback((url: string, label?: string) => {
    trackDual("external_link_click", {
      url,
      label,
      source: "client",
    });
  }, [trackDual]);

  const trackWishlistAdd = useCallback((product: {
    id: string;
    name: string;
  }) => {
    trackDual("wishlist_add", {
      product_id: product.id,
      product_name: product.name,
      source: "client",
    });
  }, [trackDual]);

  const trackUserLogin = useCallback((method: string) => {
    trackDual("user_login", {
      method,
      source: "client",
    });
  }, [trackDual]);

  const trackUserRegister = useCallback((method: string) => {
    trackDual("user_register", {
      method,
      source: "client",
    });
  }, [trackDual]);

  const trackNewsletterSignup = useCallback((email: string, source: string) => {
    trackDual("newsletter_signup", {
      email,
      source,
    });
  }, [trackDual]);

  const identifyUser = useCallback((user: {
    profileId: string;
    email?: string;
    firstName?: string;
    lastName?: string;
  }) => {
    try {
      op.identify({
        profileId: user.profileId,
        firstName: user.firstName,
        lastName: user.lastName,
        email: user.email,
      });
    } catch (e) {
      console.error("[OpenPanel] Identify error:", e);
    }
  }, [op]);

  return {
    trackProductView,
    trackAddToCart,
    trackRemoveFromCart,
    trackCartView,
    trackCheckoutStarted,
    trackCheckoutStep,
    trackOrderCompleted,
    trackSearch,
    trackExternalLink,
    trackWishlistAdd,
    trackUserLogin,
    trackUserRegister,
    trackNewsletterSignup,
    identifyUser,
  };
}

export default useAnalytics;