from odoo import http
from odoo.http import request
import json
from datetime import datetime, timedelta


class CustomerOrdersDashboard(http.Controller):

    @http.route('/customer_orders/dashboard_data', type='json', auth='user')
    def dashboard_data(self, **kwargs):
        env = request.env

        # Get all orders
        orders = env['customer.order'].search([])

        # Basic statistics
        total_orders = len(orders)
        total_quantity = sum(orders.mapped('quantity'))
        delivered_quantity = sum(orders.mapped('delivered_qty'))
        pending_quantity = total_quantity - delivered_quantity

        # Orders by state
        orders_by_state = {}
        for state_key, state_label in dict(env['customer.order']._fields['state'].selection).items():
            state_count = env['customer.orders'].search_count([('state', '=', state_key)])
            orders_by_state[state_key] = state_count

        # Monthly orders for last 6 months
        monthly_orders = []
        # for i in range(5, -1, -1):
        month_date = datetime.now() - timedelta(days=30)
        month_start = month_date.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
        month_end = (month_start + timedelta(days=32)).replace(day=1) - timedelta(days=1)

        month_orders = env['customer.orders'].search([
            ('from_date', '>=', month_start),
            ('from_date', '<=', month_end)
        ])

        monthly_orders.append({
            'month': month_start.strftime('%b %Y'),
            'count': len(month_orders),
            'quantity': sum(month_orders.mapped('quantity'))
        })

        # Top customers
        top_customers = []
        customer_orders = env['customer.orders'].read_group(
            [('customer_id', '!=', False)],
            ['customer_id:count'],
            ['customer_id']
        )

        for customer in sorted(customer_orders, key=lambda x: x['customer_id_count'], reverse=True)[:10]:
            customer_record = env['res.partner'].browse(customer['customer_id'] if customer['customer_id'] else 1)
            top_customers.append({
                'id': customer_record.id,
                'name': customer_record.name,
                'order_count': customer['customer_id_count']
            })

        # Top products
        top_products = []
        product_orders = env['customer.orders'].read_group(
            [('product_id', '!=', False)],
            ['product_id', 'quantity:sum'],
            ['product_id']
        )

        for product in sorted(product_orders, key=lambda x: x['quantity'], reverse=True)[:10]:
            product_record = env['product.product'].browse(product['product_id'][0])
            top_products.append({
                'name': product_record.name,
                'total_quantity': product['quantity']
            })

        return {
            'totalOrders': total_orders,
            'totalQuantity': total_quantity,
            'deliveredQuantity': delivered_quantity,
            'pendingQuantity': pending_quantity,
            'ordersByState': orders_by_state,
            'monthlyOrders': monthly_orders,
            'topCustomers': top_customers,
            'topProducts': top_products,
        }