newosinadjango/osinaweb/billing/add/views.py

from django.shortcuts import render, get_object_or_404, redirect
from osinacore.models import *
from billing.models import *
from django.http import JsonResponse, HttpResponse
from django.template.loader import get_template
from django.conf import settings
import os
from osinacore.decorators import *
from django.core.files.base import ContentFile
from weasyprint import HTML, CSS


@staff_login_required
def add_product(request, *args, **kwargs):
    item_types = ProjectType.objects.all().order_by('name')
    if request.method == 'POST':
        title = request.POST.get('title')
        description = request.POST.get('description')

        item_type_id = request.POST.get('item_type')
        item_type = get_object_or_404(ProjectType, id=item_type_id)

        amount = request.POST.get('amount')
        recurring = request.POST.get('recurring')

        Item.objects.create(
            type='Product',
            title=title,
            description = description,
            item_type = item_type,
            amount = amount,
            recurring = recurring,
        )
        return redirect('items')
    context = {
        'item_types' : item_types,

    }
    return render(request, 'add_templates/add-product.html', context) 


@staff_login_required
def add_service (request, *args, **kwargs):
    item_types = ProjectType.objects.all().order_by('name')
    customers = CustomerProfile.objects.all().order_by('user__first_name')
    if request.method == 'POST':
        title = request.POST.get('title')
        description = request.POST.get('description')

        customer_id = request.POST.get('customer')
        customer = get_object_or_404(CustomerProfile, id=customer_id)

        item_type_id = request.POST.get('item_type')
        item_type = get_object_or_404(ProjectType, id=item_type_id)

        amount = request.POST.get('amount')
        recurring = request.POST.get('recurring')

        Item.objects.create(
            type='Service',
            title=title,
            description = description,
            customer = customer,
            item_type = item_type,
            amount = amount,
            recurring = recurring,
        )
        return redirect('items')
    context = {
        'item_types' : item_types,
        'customers' : customers
    }
    return render(request, 'add_templates/add-service.html', context) 


@staff_login_required
def add_order(request, customer_id):
    customer= get_object_or_404(CustomerProfile, id=customer_id)
    businesses = Business.objects.filter(customer=customer)

    if request.method == 'POST':
        status = request.POST.get('status')
        business_id = request.POST.get('business')
        if business_id:
            business = get_object_or_404(Business, id=business_id)
        else:
            business = None


        order = Order.objects.create(
            customer=customer,
            status=status,
            business=business,
        )
        return redirect('orderdetails', order_id=order.id)

    context = {
        'customer' : customer,
        'businesses' : businesses,
    }

    return render(request, 'add_templates/add-order.html', context) 



@staff_login_required
def add_service_in_order(request, service_id, order_id):
    service =get_object_or_404(Item, id=service_id)
    order= get_object_or_404(Order, id=order_id)

    order_item = OrderItem.objects.create(
        order = order,
        item = service,
        purchased_at = datetime.now()
    )
    order_item.save()
    return redirect('orderdetails', order_id=order.id)






def add_invoice_pdf(request, order_id):
    order = get_object_or_404(Order, id=order_id)

    current_year = str(timezone.now().year)[-2:]
    last_invoice = Invoice.objects.all().last()
    if last_invoice:
        last_invoice_number = int(last_invoice.invoice_number.split('-')[1].split('+')[0])
        new_invoice_number = f"$0{current_year}-{last_invoice_number + 1}"
    else:
        new_invoice_number = f"$0{current_year}-1425"



    invoice = Invoice.objects.create(
        invoice_number = new_invoice_number,
        order=order,
        date_created=datetime.now(),
    )

    template = get_template('details_templates/invoice-details.html')
    context = {'order': order} 
    html_string = template.render(context)

    # Define the CSS string with Poppins font
    css_string = '''
        @font-face {
            font-family: 'Poppins';
            src: url('path_to_poppins_font_file.ttf') format('truetype');  /* Update the path to the font file */
        }
        
        body {
            font-family: 'Poppins', sans-serif;  /* Use Poppins font for the entire document */
        }
        
        /* Your existing CSS styles */
        /* Add or modify styles as needed */
    '''

    # Generate PDF
    pdf = HTML(string=html_string).write_pdf(
        stylesheets=[
            CSS(string=css_string),
            CSS(string='@page { margin: 30px; }')
        ],
        presentational_hints=True
    )

    filename = f'invoice_{invoice.invoice_number}.pdf'
    pdf_content = ContentFile(pdf)
    invoice.pdf.save(filename, pdf_content, save=True)


    # Return PDF
    response = HttpResponse(pdf, content_type='application/pdf')
    response['Content-Disposition'] = 'attachment; filename="my_pdf.pdf"'
    return response