from flask import Blueprint, request, jsonify, abort
from flask_jwt_extended import jwt_required, get_jwt_identity
from models.order_in import OrdersIn
from models.transporters import Transporters
from models.user import Users
from datetime import datetime
import os
from flask import send_from_directory
import mimetypes

orders_in_bp = Blueprint("orders_in", __name__, url_prefix="/orders_in")

@orders_in_bp.route("/", methods=["POST"])
@jwt_required()
def create_order_in_route():
    user_id = get_jwt_identity()
    users = Users()
    user = users.get_user_by_id(user_id)
    if user['user_role'] == 'company_user':
        user_id = user['company_id']
    orders = OrdersIn()
    incoming_data = request.json
    try:
        order_data = {
            'user_id': user_id,
            'client_id': incoming_data["client_id"],
            'received_price': incoming_data["received_price"],
            'order_number': incoming_data["order_number"],
            'created_at': datetime.now(),
            'ldb_quantity': incoming_data["ldb_quantity"],
            'kg_quantity': incoming_data["kg_quantity"],
            'track_reg_number': incoming_data["track_reg_number"],
            'trailer_reg_number': incoming_data["trailer_reg_number"],
            'products_description': incoming_data["products_description"],
            'file': incoming_data['file'],
            'expenses': incoming_data['expenses'],
            'currency': incoming_data['currency']
        }
        #print(order_data)
        order_id = orders.create_order(order_data)

        for address in incoming_data["loading_addresses"]:
            data = {
                "order_id": order_id,
                "destination_id": address['loading_address_id'],
                "informatins": address['loading_informatins'],
                "point_data": address['loading_date'],
                "point_hour": address['loading_hour'],
                "point_type": "loading"
            }
            orders.create_order_point(data)

        for address in incoming_data["unloading_addresses"]:
            data = {
                "order_id": order_id,
                "destination_id": address['unloading_address_id'],
                "informatins": address['unloading_informatins'],
                "point_data": address['unloading_date'],
                "point_hour": address['unloading_hour'],
                "point_type": "unloading"
            }
            orders.create_order_point(data)

        return jsonify({"message": "Order in created", "order_id": order_id}), 201
    except Exception as e:
        return jsonify({"error": str(e)}), 400
    
@orders_in_bp.route("/<int:order_id>", methods=["PUT"])
@jwt_required()
def update_order_route(order_id):
    orders = OrdersIn()
    data = request.json
    user_id = get_jwt_identity()
    users = Users()
    user = users.get_user_by_id(user_id)
    if user['user_role'] == 'company_user':
        user_id = user['company_id']
    order = orders.get_order_by_id(order_id)
    if not order:
        return jsonify({"error": "Order in not found"}), 404
    if str(order["user_id"]) != str(user_id):
        return jsonify({"error": "Unauthorized"}), 403

    try:
        orders.update_order({
            "id":data.get("id", order['id']),
            "client_id": data.get("client_id", order["client_id"]),
            "received_price": data.get("received_price", order["received_price"]),
            "order_number": data.get("order_number", order["order_number"]),
            "ldb_quantity": data.get("ldb_quantity", order["ldb_quantity"]),
            "kg_quantity": data.get("kg_quantity", order["kg_quantity"]),
            "track_reg_number": data.get("track_reg_number", order["track_reg_number"]),
            "trailer_reg_number": data.get("trailer_reg_number", order["trailer_reg_number"]),
            "products_description": data.get("products_description", order["products_description"]),
            "file": data.get("file", order["file"]),
            "expenses": data.get("expenses", order["expenses"]),
            "currency": data.get("currency", order["currency"]),
            "user_id":user_id,
        })

        orders.delete_points_by_order_id(order_id)
        
        for address in data["loading_addresses"]:
            loading_data = {
                "order_id": order_id,
                "destination_id": address['loading_address_id'],
                "informatins": address['loading_informatins'],
                "point_data": address['loading_date'],
                "point_hour": address['loading_hour'],
                "point_type": "loading"
            }
            orders.create_order_point(loading_data)

        for address in data["unloading_addresses"]:
            unloading_data = {
                "order_id": order_id,
                "destination_id": address['unloading_address_id'],
                "informatins": address['unloading_informatins'],
                "point_data": address['unloading_date'],
                "point_hour": address['unloading_hour'],
                "point_type": "unloading"
            }
            orders.create_order_point(unloading_data)

        return jsonify({"message": "Order updated"}), 200
    except Exception as e:
        return jsonify({"error": str(e)}), 400
    
@orders_in_bp.route("/<int:order_id>", methods=["DELETE"])
@jwt_required()
def delete_order_route(order_id):
    orders = OrdersIn()
    user_id = get_jwt_identity()
    users = Users()
    user = users.get_user_by_id(user_id)
    if user['user_role'] == 'company_user':
        user_id = user['company_id']
    order = orders.get_order_by_id(order_id)
    if not order:
        return jsonify({"error": "Order in not found"}), 404
    if str(order["user_id"]) != str(user_id):
        return jsonify({"error": "Unauthorized"}), 403

    try:
        orders.delete_points_by_order_id(order_id)
        orders.delete_order(order_id)
        return jsonify({"message": "Order in deleted"}), 200
    except Exception as e:
        return jsonify({"error": str(e)}), 400
    
@orders_in_bp.route("/list", methods=["GET"])
@jwt_required()
def list_orders():
    orders = OrdersIn()
    user_id = get_jwt_identity()
    users = Users()
    user = users.get_user_by_id(user_id)
    if user['user_role'] == 'company_user':
        user_id = user['company_id']
    try:
        user_orders = orders.get_orders_by_user(user_id)
        #result = [{"id": order["id"], "order_number": order["order_number"]} for order in user_orders]
        return jsonify(user_orders), 200
    except Exception as e:
        return jsonify({"error": str(e)}), 400
    
@orders_in_bp.route("/<int:order_id>", methods=["GET"])
@jwt_required()
def get_order(order_id):
    orders = OrdersIn()
    user_id = get_jwt_identity()
    users = Users()
    user = users.get_user_by_id(user_id)
    if user['user_role'] == 'company_user':
        user_id = user['company_id']
    order = orders.get_order_by_id(order_id)
    points = orders.get_order_points_by_order(order['id'])
    loading_points = []
    unloading_points = []
    for point in points:
        if point['point_type'] == 'loading':
            loading_points.append(point)
        else:
            unloading_points.append(point)
    order['loading_points'] = loading_points
    order['unloading_points'] = unloading_points
    if not order:
        return jsonify({"error": "Order not found"}), 404
    print(f'{order["user_id"]} {user_id}')
    print(f'{type(order["user_id"])} {type(user_id)}')
    if order["user_id"] != int(user_id):
        return jsonify({"error": "Unauthorized"}), 403
    return jsonify(order), 200

@orders_in_bp.route("/files/<path:filename>", methods=["GET"])
#@jwt_required()
def serve_order_pdf(filename):
    try:
        # Directory containing uploaded client files
        uploads_dir = os.path.abspath(
            os.path.join(os.path.dirname(__file__), "..", "..", "client", "uploads")
        )
        # Security: prevent path traversal and ensure file exists
        abs_file_path = os.path.abspath(os.path.join(uploads_dir, filename))
        if not abs_file_path.startswith(uploads_dir + os.sep):
            abort(404)
        if not os.path.isfile(abs_file_path):
            abort(404)

        guessed_type = mimetypes.guess_type(filename)[0] or "application/octet-stream"
        # send_from_directory expects the directory and the filename relative to it
        return send_from_directory(uploads_dir, filename, mimetype=guessed_type, as_attachment=False)
    except Exception as e:
        print(e)
        return jsonify({"error": "File not found"}), 404