"""
Copyright 2024-2026 ReplyPier

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""

import requests
from typing import Dict, Any, List, Optional
from app.core.logger import get_logger
from app.models.shopify import ShopifyShop
from sqlalchemy.orm import Session
from app.repositories.shopify_shop_repository import ShopifyShopRepository
from app.repositories.agent_shopify_config_repository import AgentShopifyConfigRepository
import json
import re # Import regex module
import aiohttp
from app.services.shopify_urls import shopify_admin_url

logger = get_logger(__name__)

class ShopifyService:
    """Service for interacting with the Shopify API."""

    def __init__(self, db: Session):
        self.db = db
        self.shopify_shop_repository = ShopifyShopRepository(db)
        self.agent_shopify_config_repository = AgentShopifyConfigRepository(db)

    def _execute_graphql(self, shop: ShopifyShop, query: str, variables: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
        """
        Execute a GraphQL query against the Shopify Admin API.
        
        Args:
            shop: The ShopifyShop model containing credentials
            query: The GraphQL query string
            variables: Optional variables for the GraphQL query
            
        Returns:
            Dict containing the GraphQL response or error information
        """
        try:
            if not shop or not shop.access_token or not shop.is_installed:
                return {
                    "success": False,
                    "message": "Shop not connected or missing access token"
                }

            url = shopify_admin_url(shop.shop_domain, "graphql.json")
            headers = {
                "X-Shopify-Access-Token": shop.access_token,
                "Content-Type": "application/json"
            }
            
            payload = {
                "query": query
            }
            
            if variables:
                payload["variables"] = variables
            
            response = requests.post(url, headers=headers, json=payload)
            
            if response.status_code != 200:
                logger.error(f"Failed to execute GraphQL query: {response.text}")
                return {
                    "success": False,
                    "message": f"Failed to execute GraphQL query: {response.text}"
                }
                
            result = response.json()
            
            # Check for GraphQL errors
            if "errors" in result:
                logger.error(f"GraphQL errors: {result['errors']}")
                return {
                    "success": False,
                    "errors": result["errors"],
                    "message": result["errors"][0]["message"] if result["errors"] else "Unknown GraphQL error"
                }
            
            return {
                "success": True,
                "data": result.get("data", {}),
                "extensions": result.get("extensions", {})
            }
            
        except Exception as e:
            logger.error(f"Error executing GraphQL query: {str(e)}")
            return {
                "success": False,
                "message": f"Error executing GraphQL query: {str(e)}"
            }
    
    async def _execute_graphql_async(self, shop: ShopifyShop, query: str, variables: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
        """
        Execute a GraphQL query against the Shopify Admin API asynchronously.
        
        Args:
            shop: The ShopifyShop model containing credentials
            query: The GraphQL query string
            variables: Optional variables for the GraphQL query
            
        Returns:
            Dict containing the GraphQL response or error information
        """
        try:
            if not shop or not shop.access_token or not shop.is_installed:
                return {
                    "success": False,
                    "message": "Shop not connected or missing access token"
                }

            url = shopify_admin_url(shop.shop_domain, "graphql.json")
            headers = {
                "X-Shopify-Access-Token": shop.access_token,
                "Content-Type": "application/json"
            }
            
            payload = {
                "query": query
            }
            
            if variables:
                payload["variables"] = variables
            
            async with aiohttp.ClientSession() as session:
                async with session.post(url, headers=headers, json=payload) as response:
                    if response.status != 200:
                        error_text = await response.text()
                        logger.error(f"Failed to execute GraphQL query: {error_text}")
                        return {
                            "success": False,
                            "message": f"Failed to execute GraphQL query: {error_text}"
                        }
                        
                    result = await response.json()
                    
                    # Check for GraphQL errors
                    if "errors" in result:
                        logger.error(f"GraphQL errors: {result['errors']}")
                        return {
                            "success": False,
                            "errors": result["errors"],
                            "message": result["errors"][0]["message"] if result["errors"] else "Unknown GraphQL error"
                        }
                    
                    return {
                        "success": True,
                        "data": result.get("data", {}),
                        "extensions": result.get("extensions", {})
                    }
        
        except Exception as e:
            logger.error(f"Error executing GraphQL query: {str(e)}")
            return {
                    "success": False,
                "message": f"Error executing GraphQL query: {str(e)}"
            }

    def get_products(self, shop: ShopifyShop, limit: int = 10) -> Dict[str, Any]:
        """
        Get products from a Shopify store using GraphQL.
        
        Args:
            shop: The ShopifyShop model containing credentials
            limit: Maximum number of products to return
            
        Returns:
            Dict containing products or error information
        """
        query = """
        query GetProducts($limit: Int!) {
          products(first: $limit, query: "status:active AND inventory_total:>0") {
            edges {
              node {
                id
                title
                description
                handle
                productType
                vendor
                totalInventory
                priceRangeV2 {
                  minVariantPrice {
                    amount
                    currencyCode
                  }
                  maxVariantPrice {
                    amount
                    currencyCode
                  }
                }
                images(first: 1) {
                  edges {
                    node {
                      id
                      url
                      altText
                    }
                  }
                }
                tags
                createdAt
                updatedAt
              }
            }
            pageInfo {
              hasNextPage
              endCursor
            }
          }
        }
        """
        
        variables = {
            "limit": limit
        }
        
        result = self._execute_graphql(shop, query, variables)
        
        if not result.get("success", False):
            return result
        
        # Transform the GraphQL data structure to match the existing format
        transformed_products = []
        edges = result.get("data", {}).get("products", {}).get("edges", [])
        
        for edge in edges:
            node = edge.get("node", {})
            
            # Extract the first image URL if available
            image_url = None
            images = node.get("images", {}).get("edges", [])
            if images and len(images) > 0:
                image_url = images[0].get("node", {}).get("url")
            
            # Extract price information
            price_range = node.get("priceRangeV2", {})
            min_price = price_range.get("minVariantPrice", {}).get("amount")
            max_price = price_range.get("maxVariantPrice", {}).get("amount")
            currency_code = price_range.get("minVariantPrice", {}).get("currencyCode")
            
            # Transform to previous structure
            transformed_product = {
                "id": node.get("id").split("/")[-1] if node.get("id") else None,  # Extract numeric ID from gid
                "title": node.get("title"),
                "description": node.get("description"),
                "handle": node.get("handle"),
                "product_type": node.get("productType"),
                "vendor": node.get("vendor"),
                "total_inventory": node.get("totalInventory"),
                "price": min_price,
                "price_max": max_price,
                "currency": currency_code,
                "image": {"src": image_url} if image_url else None,
                "tags": node.get("tags"),
                "created_at": node.get("createdAt"),
                "updated_at": node.get("updatedAt")
            }

            transformed_products.append(transformed_product)

        return {
            "success": True,
            "products": transformed_products,
            "count": len(transformed_products),
            "has_next_page": result.get("data", {}).get("products", {}).get("pageInfo", {}).get("hasNextPage", False),
            "end_cursor": result.get("data", {}).get("products", {}).get("pageInfo", {}).get("endCursor")
        }
    
    def get_product(self, shop: ShopifyShop, product_id: str) -> Dict[str, Any]:
        """
        Get a specific product from a Shopify store using GraphQL.
        
        Args:
            shop: The ShopifyShop model containing credentials
            product_id: The ID of the product to retrieve
            
        Returns:
            Dict containing the product details or error information
        """
        # In GraphQL, we need the full global ID which is formatted as gid://shopify/Product/{id}
        gid = f"gid://shopify/Product/{product_id}"
        
        query = """
        query GetProduct($id: ID!) {
          product(id: $id) {
            id
            title
            description
            descriptionHtml
            handle
            productType
            vendor
            totalInventory
            priceRangeV2 {
              minVariantPrice {
                amount
                currencyCode
              }
              maxVariantPrice {
                amount
                currencyCode
              }
            }
            images(first: 10) {
              edges {
                node {
                  id
                  url
                  altText
                  width
                  height
                }
              }
            }
            variants(first: 20) {
              edges {
                node {
                  id
                  title
                  price
                  compareAtPrice
                  inventoryQuantity
                  sku
                  barcode
                }
              }
            }
            tags
            collections(first: 5) {
              edges {
                node {
                  id
                  title
                }
              }
            }
            createdAt
            updatedAt
          }
        }
        """
        
        variables = {
            "id": gid
        }
        
        result = self._execute_graphql(shop, query, variables)
        
        if not result.get("success", False):
            return result
        
        product_data = result.get("data", {}).get("product")
        
        if not product_data:
            return {
                "success": False,
                "message": f"Product with ID {product_id} not found"
            }
        
        # Transform GraphQL data to match the expected format
        
        # Process images
        images = []
        for edge in product_data.get("images", {}).get("edges", []):
            node = edge.get("node", {})
            images.append({
                "id": node.get("id").split("/")[-1] if node.get("id") else None,
                "src": node.get("url"),
                "alt": node.get("altText"),
                "width": node.get("width"),
                "height": node.get("height")
            })
        
        # Process variants
        variants = []
        for edge in product_data.get("variants", {}).get("edges", []):
            node = edge.get("node", {})
            variants.append({
                "id": node.get("id").split("/")[-1] if node.get("id") else None,
                "title": node.get("title"),
                "price": node.get("price"),
                "compare_at_price": node.get("compareAtPrice"),
                "inventory_quantity": node.get("inventoryQuantity"),
                "sku": node.get("sku"),
                "barcode": node.get("barcode")
            })
        
        # Process collections
        collections = []
        for edge in product_data.get("collections", {}).get("edges", []):
            node = edge.get("node", {})
            collections.append({
                "id": node.get("id").split("/")[-1] if node.get("id") else None,
                "title": node.get("title")
            })
        
        # Extract price information
        price_range = product_data.get("priceRangeV2", {})
        min_price = price_range.get("minVariantPrice", {}).get("amount")
        max_price = price_range.get("maxVariantPrice", {}).get("amount")
        currency_code = price_range.get("minVariantPrice", {}).get("currencyCode")
        
        # Build transformed product
        transformed_product = {
            "id": product_data.get("id").split("/")[-1] if product_data.get("id") else None,
            "title": product_data.get("title"),
            "description": product_data.get("description"),
            "body_html": product_data.get("descriptionHtml"),
            "handle": product_data.get("handle"),
            "product_type": product_data.get("productType"),
            "vendor": product_data.get("vendor"),
            "total_inventory": product_data.get("totalInventory"),
            "price": min_price,
            "price_max": max_price,
            "currency": currency_code,
            "images": images,
            "image": images[0] if images else None,
            "variants": variants,
            "tags": product_data.get("tags"),
            "collections": collections,
            "created_at": product_data.get("createdAt"),
            "updated_at": product_data.get("updatedAt")
        }
        
        return {
            "success": True,
            "product": transformed_product
            }
    
    def create_product(self, shop: ShopifyShop, product_data: Dict[str, Any]) -> Dict[str, Any]:
        """
        Create a new product in a Shopify store.
        
        Args:
            shop: The ShopifyShop model containing credentials
            product_data: Dictionary containing the product details
            
        Returns:
            Dict containing the created product or error information
        """
        try:
            if not shop or not shop.access_token or not shop.is_installed:
                return {
                    "success": False,
                    "message": "Shop not connected or missing access token"
                }

            url = shopify_admin_url(shop.shop_domain, "products.json")
            headers = {
                "X-Shopify-Access-Token": shop.access_token,
                "Content-Type": "application/json"
            }
            
            # Ensure product_data has the right structure
            payload = {"product": product_data}
            
            response = requests.post(url, headers=headers, json=payload)
            
            if response.status_code not in (200, 201):
                logger.error(f"Failed to create product: {response.text}")
                return {
                    "success": False,
                    "message": f"Failed to create product: {response.text}"
                }
                
            product = response.json().get("product", {})
            
            return {
                "success": True,
                "product": product,
                "message": "Product created successfully"
            }
            
        except Exception as e:
            logger.error(f"Error creating product: {str(e)}")
            return {
                "success": False,
                "message": f"Error creating product: {str(e)}"
            }
    
    def update_product(self, shop: ShopifyShop, product_id: str, product_data: Dict[str, Any]) -> Dict[str, Any]:
        """
        Update an existing product in a Shopify store.
        
        Args:
            shop: The ShopifyShop model containing credentials
            product_id: The ID of the product to update
            product_data: Dictionary containing the updated product details
            
        Returns:
            Dict containing the updated product or error information
        """
        try:
            if not shop or not shop.access_token or not shop.is_installed:
                return {
                    "success": False,
                    "message": "Shop not connected or missing access token"
                }

            url = shopify_admin_url(shop.shop_domain, f"products/{product_id}.json")
            headers = {
                "X-Shopify-Access-Token": shop.access_token,
                "Content-Type": "application/json"
            }
            
            # Ensure product_data has the right structure
            payload = {"product": product_data}
            
            response = requests.put(url, headers=headers, json=payload)
            
            if response.status_code != 200:
                logger.error(f"Failed to update product: {response.text}")
                return {
                    "success": False,
                    "message": f"Failed to update product: {response.text}"
                }
                
            product = response.json().get("product", {})
            
            return {
                "success": True,
                "product": product,
                "message": "Product updated successfully"
            }
            
        except Exception as e:
            logger.error(f"Error updating product: {str(e)}")
            return {
                "success": False,
                "message": f"Error updating product: {str(e)}"
            }
    
    def delete_product(self, shop: ShopifyShop, product_id: str) -> Dict[str, Any]:
        """
        Delete a product from a Shopify store.
        
        Args:
            shop: The ShopifyShop model containing credentials
            product_id: The ID of the product to delete
            
        Returns:
            Dict containing success status or error information
        """
        try:
            if not shop or not shop.access_token or not shop.is_installed:
                return {
                    "success": False,
                    "message": "Shop not connected or missing access token"
                }

            url = shopify_admin_url(shop.shop_domain, f"products/{product_id}.json")
            headers = {
                "X-Shopify-Access-Token": shop.access_token,
                "Content-Type": "application/json"
            }
            
            response = requests.delete(url, headers=headers)
            
            if response.status_code not in (200, 204):
                logger.error(f"Failed to delete product: {response.text}")
                return {
                    "success": False,
                    "message": f"Failed to delete product: {response.text}"
                }
                
            return {
                "success": True,
                "message": "Product deleted successfully"
            }
            
        except Exception as e:
            logger.error(f"Error deleting product: {str(e)}")
            return {
                "success": False,
                "message": f"Error deleting product: {str(e)}"
            }
    
    def search_products(self, shop: ShopifyShop, query: str, limit: int = 10) -> Dict[str, Any]:
        """
        Search for products in a Shopify store using GraphQL.
        
        Args:
            shop: The ShopifyShop model containing credentials
            query: The search query
            limit: Maximum number of products to return
            
        Returns:
            Dict containing matching products or error information
        """
        graphql_query = """
        query SearchProducts($query: String!, $limit: Int!) {
          products(first: $limit, query: $query) {
            edges {
              node {
                id
                title
                description
                handle
                productType
                vendor
                totalInventory
                priceRangeV2 {
                  minVariantPrice {
                    amount
                    currencyCode
                  }
                  maxVariantPrice {
                    amount
                    currencyCode
                  }
                }
                images(first: 1) {
                  edges {
                    node {
                      id
                      url
                      altText
                    }
                  }
                }
                tags
                createdAt
                updatedAt
              }
            }
            pageInfo {
              hasNextPage
              endCursor
            }
          }
        }
        """
        
        # Add status:active filter to only return active products (exclude archived and draft)
        filtered_query = f"({query}) AND status:active"
        
        variables = {
            "query": filtered_query,
            "limit": limit
        }
        
        result = self._execute_graphql(shop, graphql_query, variables)
        
        if not result.get("success", False):
            return result
        
        # Transform the GraphQL data structure to match the existing format
        transformed_products = []
        edges = result.get("data", {}).get("products", {}).get("edges", [])
        
        for edge in edges:
            node = edge.get("node", {})
            
            # Extract the first image URL if available
            image_url = None
            images = node.get("images", {}).get("edges", [])
            if images and len(images) > 0:
                image_url = images[0].get("node", {}).get("url")
            
            # Extract price information
            price_range = node.get("priceRangeV2", {})
            min_price = price_range.get("minVariantPrice", {}).get("amount")
            max_price = price_range.get("maxVariantPrice", {}).get("amount")
            currency_code = price_range.get("minVariantPrice", {}).get("currencyCode")
            
            # Transform to previous structure
            transformed_product = {
                "id": node.get("id").split("/")[-1] if node.get("id") else None,  # Extract numeric ID from gid
                "title": node.get("title"),
                "description": node.get("description"),
                "handle": node.get("handle"),
                "product_type": node.get("productType"),
                "vendor": node.get("vendor"),
                "total_inventory": node.get("totalInventory"),
                "price": min_price,
                "price_max": max_price,
                "currency": currency_code,
                "image": {"src": image_url} if image_url else None,
                "tags": node.get("tags"),
                "created_at": node.get("createdAt"),
                "updated_at": node.get("updatedAt")
            }
            
            transformed_products.append(transformed_product)
        
        return {
            "success": True,
            "products": transformed_products,
            "count": len(transformed_products),
            "has_next_page": result.get("data", {}).get("products", {}).get("pageInfo", {}).get("hasNextPage", False),
            "end_cursor": result.get("data", {}).get("products", {}).get("pageInfo", {}).get("endCursor")
        }
            
    def search_orders(self, shop: ShopifyShop, params: Dict[str, Any], limit: int = 10) -> Dict[str, Any]:
        """
        Search for orders in a Shopify store using GraphQL.
        
        Args:
            shop: The ShopifyShop model containing credentials
            params: Dictionary containing search parameters
            limit: Maximum number of orders to return
            
        Returns:
            Dict containing matching orders or error information
        """
        # Construct the query string based on the parameters
        query_parts = []
        
        if params.get("query"):
            query_parts.append(params.get("query"))
        
        if params.get("email"):
            query_parts.append(f"email:{params.get('email')}")
        
        if params.get("name"):
            query_parts.append(f"name:{params.get('name')}")
            
        # Combine query parts or use a default query
        query_string = " ".join(query_parts) if query_parts else ""
        
        graphql_query = """
        query SearchOrders($query: String!, $limit: Int!) {
          orders(first: $limit, query: $query) {
            edges {
              node {
                id
                name
                email
                processedAt
                createdAt
                updatedAt
                cancelledAt
                cancelReason
                displayFinancialStatus
                displayFulfillmentStatus
                customerJourneySummary {
                  customerOrderIndex
                  daysToConversion
                }
                customer {
                  id
                  firstName
                  lastName
                  email
                  phone
                }
                currentTotalPriceSet {
                  shopMoney {
                    amount
                    currencyCode
                  }
                }
                originalTotalPriceSet {
                  shopMoney {
                    amount
                    currencyCode
                  }
                }
                shippingAddress {
                  address1
                  address2
                  city
                  country
                  zip
                  phone
                  name
                }
                fulfillments {
                  status
                  trackingInfo {
                    number
                    url
                  }
                }
                lineItems(first: 10) {
                  edges {
                    node {
                      id
                      name
                      quantity
                      originalUnitPriceSet {
                        shopMoney {
                          amount
                          currencyCode
                        }
                      }
                      variant {
                        id
                        title
                        sku
                      }
                    }
                  }
                }
              }
            }
            pageInfo {
              hasNextPage
              endCursor
            }
          }
        }
        """
        
        variables = {
            "query": query_string,
            "limit": limit
        }
        
        result = self._execute_graphql(shop, graphql_query, variables)
        
        if not result.get("success", False):
            return result
        
        # Transform the GraphQL data structure to match the expected format
        transformed_orders = []
        edges = result.get("data", {}).get("orders", {}).get("edges", [])
        
        for edge in edges:
            node = edge.get("node", {})
            
            # Process line items
            line_items = []
            for li_edge in node.get("lineItems", {}).get("edges", []):
                li_node = li_edge.get("node", {})
                variant = li_node.get("variant", {})
                
                line_item = {
                    "id": li_node.get("id").split("/")[-1] if li_node.get("id") else None,
                    "name": li_node.get("name"),
                    "quantity": li_node.get("quantity"),
                    "price": li_node.get("originalUnitPriceSet", {}).get("shopMoney", {}).get("amount"),
                    "currency": li_node.get("originalUnitPriceSet", {}).get("shopMoney", {}).get("currencyCode"),
                    "variant_id": variant.get("id").split("/")[-1] if variant.get("id") else None,
                    "variant_title": variant.get("title"),
                    "sku": variant.get("sku")
                }
                
                line_items.append(line_item)
            
            # Process fulfillments
            fulfillments = []
            for fulfillment in node.get("fulfillments", []):
                tracking_info = []
                
                for tracking in fulfillment.get("trackingInfo", []):
                    tracking_info.append({
                        "number": tracking.get("number"),
                        "url": tracking.get("url")
                    })
                
                fulfillments.append({
                    "status": fulfillment.get("status"),
                    "tracking_numbers": [t.get("number") for t in tracking_info if t.get("number")],
                    "tracking_urls": [t.get("url") for t in tracking_info if t.get("url")],
                    "tracking_info": tracking_info
                })
            
            # Extract customer info
            customer = node.get("customer", {})
            customer_data = {
                "id": customer.get("id").split("/")[-1] if customer.get("id") else None,
                "first_name": customer.get("firstName"),
                "last_name": customer.get("lastName"),
                "email": customer.get("email"),
                "phone": customer.get("phone")
            } if customer else None
            
            # Process shipping address
            shipping_address = node.get("shippingAddress", {})
            
            # Build transformed order
            transformed_order = {
                "id": node.get("id").split("/")[-1] if node.get("id") else None,
                "name": node.get("name"),
                "email": node.get("email"),
                "processed_at": node.get("processedAt"),
                "created_at": node.get("createdAt"),
                "updated_at": node.get("updatedAt"),
                "cancelled_at": node.get("cancelledAt"),
                "cancel_reason": node.get("cancelReason"),
                "financial_status": node.get("displayFinancialStatus"),
                "fulfillment_status": node.get("displayFulfillmentStatus"),
                "customer": customer_data,
            "total_price": node.get("currentTotalPriceSet", {}).get("shopMoney", {}).get("amount"),
            "currency": node.get("currentTotalPriceSet", {}).get("shopMoney", {}).get("currencyCode"),
            "original_total_price": node.get("originalTotalPriceSet", {}).get("shopMoney", {}).get("amount"),
                "shipping_address": shipping_address,
                "fulfillments": fulfillments,
                "line_items": line_items
            }
            
            transformed_orders.append(transformed_order)
        
        return {
            "success": True,
            "orders": transformed_orders,
            "count": len(transformed_orders),
            "has_next_page": result.get("data", {}).get("orders", {}).get("pageInfo", {}).get("hasNextPage", False),
            "end_cursor": result.get("data", {}).get("orders", {}).get("pageInfo", {}).get("endCursor")
        }
    
    def get_order(self, shop: ShopifyShop, order_id: str) -> Dict[str, Any]:
        """
        Get a specific order from a Shopify store using GraphQL.
        
        Args:
            shop: The ShopifyShop model containing credentials
            order_id: The ID of the order to retrieve
            
        Returns:
            Dict containing the order details or error information
        """
        # In GraphQL, we need the full global ID which is formatted as gid://shopify/Order/{id}
        gid = f"gid://shopify/Order/{order_id}"
        
        query = """
        query GetOrder($id: ID!) {
          order(id: $id) {
            id
            name
            email
            processedAt
            createdAt
            updatedAt
            cancelledAt
            cancelReason
            displayFinancialStatus
            displayFulfillmentStatus
            customerJourneySummary {
              customerOrderIndex
              daysToConversion
            }
            customer {
              id
              firstName
              lastName
              email
              phone
            }
            currentTotalPriceSet {
              shopMoney {
                amount
                currencyCode
              }
            }
            originalTotalPriceSet {
              shopMoney {
                amount
                currencyCode
              }
            }
            shippingAddress {
              address1
              address2
              city
              country
              zip
              phone
              name
            }
            fulfillments {
              status
              trackingInfo {
                number
                url
              }
            }
            lineItems(first: 50) {
              edges {
                node {
                  id
                  name
                  quantity
                  originalUnitPriceSet {
                    shopMoney {
                      amount
                      currencyCode
                    }
                  }
                  variant {
                    id
                    title
                    sku
                  }
                }
              }
            }
          }
        }
        """
        
        variables = {
            "id": gid
        }
        
        result = self._execute_graphql(shop, query, variables)
        
        if not result.get("success", False):
            return result
        
        order_data = result.get("data", {}).get("order")
        
        if not order_data:
            return {
                "success": False,
                "message": f"Order with ID {order_id} not found"
            }
        
        # Process line items
        line_items = []
        for li_edge in order_data.get("lineItems", {}).get("edges", []):
            li_node = li_edge.get("node", {})
            variant = li_node.get("variant", {})
            
            line_item = {
                "id": li_node.get("id").split("/")[-1] if li_node.get("id") else None,
                "name": li_node.get("name"),
                "quantity": li_node.get("quantity"),
                "price": li_node.get("originalUnitPriceSet", {}).get("shopMoney", {}).get("amount"),
                "currency": li_node.get("originalUnitPriceSet", {}).get("shopMoney", {}).get("currencyCode"),
                "variant_id": variant.get("id").split("/")[-1] if variant.get("id") else None,
                "variant_title": variant.get("title"),
                "sku": variant.get("sku")
            }
            
            line_items.append(line_item)
        
        # Process fulfillments
        fulfillments = []
        for fulfillment in order_data.get("fulfillments", []):
            tracking_info = []
            
            for tracking in fulfillment.get("trackingInfo", []):
                tracking_info.append({
                    "number": tracking.get("number"),
                    "url": tracking.get("url")
                })
            
            fulfillments.append({
                "status": fulfillment.get("status"),
                "tracking_numbers": [t.get("number") for t in tracking_info if t.get("number")],
                "tracking_urls": [t.get("url") for t in tracking_info if t.get("url")],
                "tracking_info": tracking_info
            })
        
        # Extract customer info
        customer = order_data.get("customer", {})
        customer_data = {
            "id": customer.get("id").split("/")[-1] if customer.get("id") else None,
            "first_name": customer.get("firstName"),
            "last_name": customer.get("lastName"),
            "email": customer.get("email"),
            "phone": customer.get("phone")
        } if customer else None
        
        # Build transformed order
        transformed_order = {
            "id": order_data.get("id").split("/")[-1] if order_data.get("id") else None,
            "name": order_data.get("name"),
            "email": order_data.get("email"),
            "processed_at": order_data.get("processedAt"),
            "created_at": order_data.get("createdAt"),
            "updated_at": order_data.get("updatedAt"),
            "cancelled_at": order_data.get("cancelledAt"),
            "cancel_reason": order_data.get("cancelReason"),
            "financial_status": order_data.get("displayFinancialStatus"),
            "fulfillment_status": order_data.get("displayFulfillmentStatus"),
            "customer": customer_data,
            "total_price": order_data.get("currentTotalPriceSet", {}).get("shopMoney", {}).get("amount"),
            "currency": order_data.get("currentTotalPriceSet", {}).get("shopMoney", {}).get("currencyCode"),
            "original_total_price": order_data.get("originalTotalPriceSet", {}).get("shopMoney", {}).get("amount"),
            "shipping_address": order_data.get("shippingAddress", {}),
            "fulfillments": fulfillments,
            "line_items": line_items
        }
        
        return {
            "success": True,
            "order": transformed_order
            }

    def _make_rest_request(self, shop: ShopifyShop, method: str, endpoint: str, payload: Optional[Dict[str, Any]] = None) -> Dict[str, Any]:
        """
        Make a REST request to the Shopify Admin API.
        
        Args:
            shop: The ShopifyShop model containing credentials.
            method: HTTP method (GET, POST, PUT, DELETE).
            endpoint: API endpoint path (e.g., 'themes.json', 'themes/{theme_id}/assets.json').
            payload: Optional dictionary for request body (for POST/PUT).
            
        Returns:
            Dict containing the API response or error information.
        """
        try:
            if not shop or not shop.access_token or not shop.is_installed:
                return {"success": False, "message": "Shop not connected or missing access token"}

            url = shopify_admin_url(shop.shop_domain, endpoint)
            headers = {
                "X-Shopify-Access-Token": shop.access_token,
                "Content-Type": "application/json",
                "Accept": "application/json"
            }
            
            response = requests.request(method, url, headers=headers, json=payload)
            
            # Handle rate limits (basic example)
            if response.status_code == 429:
                retry_after = response.headers.get("Retry-After", 1)
                logger.warning(f"Shopify rate limit hit. Retrying after {retry_after} seconds.")
                # Consider adding actual retry logic here if needed
                return {"success": False, "message": f"Rate limit exceeded. Try again in {retry_after} seconds.", "status_code": 429}

            if not (200 <= response.status_code < 300):
                logger.error(f"Shopify REST API error ({method} {url}): {response.status_code} - {response.text}")
                return {"success": False, "message": f"API Error: {response.text}", "status_code": response.status_code}
            
            # DELETE might return 204 No Content
            if response.status_code == 204:
                 return {"success": True, "data": {}}
                 
            return {"success": True, "data": response.json()}
            
        except requests.exceptions.RequestException as e:
            logger.error(f"Error making Shopify REST request: {str(e)}")
            return {"success": False, "message": f"Request Exception: {str(e)}"}
        except Exception as e:
            logger.error(f"Unexpected error during Shopify REST request: {str(e)}", exc_info=True)
            return {"success": False, "message": f"Unexpected Error: {str(e)}"}

    async def inject_widget_script(self, shop: ShopifyShop, script_tag: str) -> None:
        """
        Creates a Shopify Script Tag to inject the ReplyPier widget using the scriptTagCreate GraphQL mutation.
        
        Args:
            shop: The ShopifyShop object.
            script_tag: The full HTML script tag string to inject (not used directly in this implementation).
            
        Note:
            This implementation uses Shopify's scriptTagCreate mutation instead of modifying theme files.
            It extracts the script URL from the provided script_tag string and creates a proper Shopify Script Tag.
        """
        logger.info(f"Starting widget script injection for shop: {shop.shop_domain}")
        
        # 1. Extract the script URL from the script_tag string
        # The script_tag is in format: 
        # <script>/* ReplyPier Start */window.replypierId='widget_id';</script><script src="script_url" async defer></script>
        # We need to extract the script_url
        
        import re
        script_url_match = re.search(r'<script src=["\']([^"\']+)["\']', script_tag)
        widget_id_match = re.search(r"window\.replypierId=\'([^\']+)\'", script_tag)
        
        if not script_url_match:
            raise Exception("Could not extract script URL from the provided script tag.")
        
        script_url = script_url_match.group(1)
        widget_id = widget_id_match.group(1) if widget_id_match else None
        
        # 2. Check if this script is already installed
        existing_script_query = """
        query {
          scriptTags(first: 50) {
            edges {
              node {
                id
                src
              }
            }
          }
        }
        """
        
        script_response = await self._execute_graphql_async(shop, existing_script_query)
        if not script_response.get("success"):
            raise Exception(f"Failed to fetch existing scripts: {script_response.get('message')}")
        
        # Check if our script is already installed
        script_edges = script_response["data"]["scriptTags"]["edges"]
        for edge in script_edges:
            if edge["node"]["src"] == script_url:
                logger.info(f"ReplyPier script already installed at {script_url}. Skipping injection.")
                return
        
        # 3. Create the script tag using scriptTagCreate mutation
        create_mutation = """
        mutation scriptTagCreate($input: ScriptTagInput!) {
          scriptTagCreate(input: $input) {
            scriptTag {
              id
              src
              displayScope
            }
            userErrors {
              field
              message
            }
          }
        }
        """
        
        create_vars = {
            "input": {
                "src": script_url,
                "displayScope": "ONLINE_STORE",  # Apply to the online store
                "cache": False  # Don't cache the script to ensure updates are applied immediately
            }
        }
        
        create_response = await self._execute_graphql_async(shop, create_mutation, create_vars)
        if not create_response.get("success"):
            raise Exception(f"Failed to create script tag: {create_response.get('message')}")
        
        user_errors = create_response["data"]["scriptTagCreate"]["userErrors"]
        if user_errors:
            error_msg = user_errors[0]["message"]
            logger.error(f"GraphQL error creating script tag: {error_msg}")
            raise Exception(f"Failed to create script tag: {error_msg}")
        
        script_tag_id = create_response["data"]["scriptTagCreate"]["scriptTag"]["id"]
        logger.info(f"Successfully created script tag with ID {script_tag_id} for shop {shop.shop_domain}")
        
        # 4. Store the script tag ID in the database for future reference
        if widget_id:
            # Optional: store the mapping between widget_id and script_tag_id
            # This could be useful for removing the script tag later
            # You'll need to implement this storage mechanism based on your database schema
            logger.info(f"Associated widget {widget_id} with script tag {script_tag_id}")

    async def remove_widget_script(self, shop: ShopifyShop, widget_id: str) -> None:
        """
        Removes the ReplyPier widget script tag using scriptTagDelete GraphQL mutation.
        
        Args:
            shop: The ShopifyShop object.
            widget_id: The ID of the widget to remove (used to identify the correct script tag).
        """
        logger.info(f"Starting widget script removal for shop: {shop.shop_domain}")
        
        # 1. Get all script tags
        script_query = """
        query {
          scriptTags(first: 50) {
            edges {
              node {
                id
                src
              }
            }
          }
        }
        """
        
        script_response = await self._execute_graphql_async(shop, script_query)
        if not script_response.get("success"):
            raise Exception(f"Failed to fetch script tags: {script_response.get('message')}")
        
        # Extract the script edges
        script_edges = script_response["data"]["scriptTags"]["edges"]
        
        # 2. Find scripts matching our widget
        # The approach depends on how your scripts are identified
        # Look for scripts containing your domain and potentially the widget ID
        widget_scripts = []
        for edge in script_edges:
            src = edge["node"]["src"]
            # Match any scripts from your domain and potentially containing the widget ID
            # Adjust this condition based on your script URL structure
            if "replypier" in src.lower():
                widget_scripts.append(edge["node"]["id"])
        
        if not widget_scripts:
            logger.info(f"No ReplyPier script tags found for shop {shop.shop_domain}. Nothing to remove.")
            return
        
        # 3. Delete each matching script tag
        delete_mutation = """
        mutation scriptTagDelete($id: ID!) {
          scriptTagDelete(id: $id) {
            deletedScriptTagId
            userErrors {
              field
              message
            }
          }
        }
        """
        
        for script_id in widget_scripts:
            delete_vars = {
                "id": script_id
            }
            
            delete_response = await self._execute_graphql_async(shop, delete_mutation, delete_vars)
            if not delete_response.get("success"):
                logger.warning(f"Failed to delete script tag {script_id}: {delete_response.get('message')}")
                continue
            
            user_errors = delete_response["data"]["scriptTagDelete"]["userErrors"]
            if user_errors:
                error_msg = user_errors[0]["message"]
                logger.warning(f"GraphQL error deleting script tag {script_id}: {error_msg}")
                continue
            
            logger.info(f"Successfully removed script tag with ID {script_id} from shop {shop.shop_domain}")
        
        logger.info(f"Completed widget script removal for shop {shop.shop_domain}")