422 lines
14 KiB
Python
422 lines
14 KiB
Python
import csv
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import io
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from django.shortcuts import render, redirect, get_object_or_404
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from django.contrib.auth.decorators import login_required
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from django.contrib.auth import login, authenticate, logout
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from django.contrib import messages
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from django.db.models import Sum, Count, F
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from django.utils import timezone
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from datetime import date
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from django.http import JsonResponse, HttpResponse
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from .models import Expense, Project, Category, SystemSetting, UserProfile, AuditLog, ApprovalStatusEnum, CurrencyEnum
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from .forms import ExpenseForm, ProjectForm, SystemSettingForm, ResponsableForm
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from .decorators import role_required
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from django.contrib.auth.models import User, Group
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def login_view(request):
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if request.user.is_authenticated:
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return redirect('dashboard')
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if request.method == 'POST':
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username = request.POST.get('username')
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password = request.POST.get('password')
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user = authenticate(request, username=username, password=password)
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if user is not None:
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login(request, user)
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return redirect('dashboard')
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else:
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messages.error(request, 'Usuario o contraseña incorrectos.')
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return render(request, 'registration/login.html')
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def logout_view(request):
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logout(request)
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return redirect('login')
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@login_required
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def dashboard(request):
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today = date.today()
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first_day_of_month = today.replace(day=1)
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total_month_clp = Expense.objects.filter(
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date__gte=first_day_of_month
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).aggregate(total=Sum('amount_clp'))['total'] or 0
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total_all_clp = Expense.objects.aggregate(
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total=Sum('amount_clp')
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)['total'] or 0
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project_count = Project.objects.count()
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today_count = Expense.objects.filter(date=today).count()
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recent_expenses = Expense.objects.select_related(
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'project', 'category', 'user', 'responsible_person'
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).order_by('-date')[:10]
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# Presupuesto Global
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setting, _ = SystemSetting.objects.get_or_create(id=1)
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global_budget = setting.global_budget
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remaining_budget = global_budget - total_all_clp
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context = {
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'total_month': total_month_clp,
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'total_all': total_all_clp,
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'project_count': project_count,
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'today_count': today_count,
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'recent_expenses': recent_expenses,
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'global_budget': global_budget,
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'remaining_budget': remaining_budget,
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}
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return render(request, 'expenses/dashboard.html', context)
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@login_required
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def expense_list(request):
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expenses = Expense.objects.select_related('project', 'category', 'user').order_by('-date')
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# Filtros
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project_id = request.GET.get('project')
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category_id = request.GET.get('category')
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if project_id:
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expenses = expenses.filter(project_id=project_id)
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if category_id:
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expenses = expenses.filter(category_id=category_id)
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context = {
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'expenses': expenses,
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'projects': Project.objects.all(),
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'categories': Category.objects.all(),
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'selected_project': project_id,
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'selected_category': category_id,
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}
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return render(request, 'expenses/expense_list.html', context)
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@login_required
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def expense_create(request):
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# Only allow creation if user is admin or allowed to
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if request.method == 'POST':
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form = ExpenseForm(request.POST, request.FILES)
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if form.is_valid():
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expense = form.save(commit=False)
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expense.user = request.user
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# Auto convert to USD if CLP
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setting, _ = SystemSetting.objects.get_or_create(id=1)
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if expense.currency == CurrencyEnum.CLP:
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expense.amount_usd = expense.amount_clp / setting.usd_exchange_rate
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else:
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expense.amount_usd = expense.amount_clp
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expense.amount_clp = expense.amount_usd * setting.usd_exchange_rate
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expense.save()
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receipt = request.FILES.get('receipt')
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if receipt:
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from .models import Document
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Document.objects.create(expense=expense, file=receipt, title=receipt.name, uploaded_by=request.user)
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AuditLog.objects.create(
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user=request.user,
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action="Gasto Creado",
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entity_name="Expense",
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entity_id=expense.expense_code,
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description=f"Se creó el gasto por {expense.amount_clp} CLP"
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)
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messages.success(request, 'Gasto registrado exitosamente.')
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return redirect('expense_list')
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else:
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form = ExpenseForm()
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return render(request, 'expenses/expense_form.html', {'form': form})
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@login_required
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def expense_edit(request, pk):
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expense = get_object_or_404(Expense, pk=pk)
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user_groups = request.user.groups.values_list('name', flat=True)
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if not (request.user.is_superuser or 'Administrador' in user_groups or expense.user == request.user):
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messages.error(request, 'No tienes permisos para editar este gasto.')
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return redirect('expense_list')
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old_amount = expense.amount_clp
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if request.method == 'POST':
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form = ExpenseForm(request.POST, request.FILES, instance=expense)
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if form.is_valid():
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exp = form.save(commit=False)
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setting, _ = SystemSetting.objects.get_or_create(id=1)
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exp.amount_usd = exp.amount_clp / setting.usd_exchange_rate
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exp.save()
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receipt = request.FILES.get('receipt')
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if receipt:
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from .models import Document
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# Optionally delete old receipt: Document.objects.filter(expense=exp).delete()
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Document.objects.create(expense=exp, file=receipt, title=receipt.name, uploaded_by=request.user)
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AuditLog.objects.create(
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user=request.user,
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action="Gasto Editado",
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entity_name="Expense",
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entity_id=exp.expense_code,
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field_changed="amount_clp",
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old_value=str(old_amount),
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new_value=str(exp.amount_clp),
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description=f"Se editó el monto del gasto"
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)
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messages.success(request, 'Gasto actualizado exitosamente.')
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return redirect('expense_list')
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else:
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form = ExpenseForm(instance=expense)
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return render(request, 'expenses/expense_form.html', {'form': form})
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@login_required
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def expense_delete(request, pk):
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expense = get_object_or_404(Expense, pk=pk)
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user_groups = request.user.groups.values_list('name', flat=True)
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if not (request.user.is_superuser or 'Administrador' in user_groups):
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messages.error(request, 'Solo administradores pueden eliminar gastos.')
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return redirect('expense_list')
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if request.method == 'POST':
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code = expense.expense_code
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expense.delete()
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AuditLog.objects.create(
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user=request.user,
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action="Gasto Eliminado",
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entity_name="Expense",
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entity_id=code,
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description="Se eliminó el gasto de la base de datos"
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)
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messages.success(request, 'Gasto eliminado.')
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return redirect('expense_list')
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# Flujo de 3 pasos
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@login_required
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def approve_expense(request, pk, action):
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expense = get_object_or_404(Expense, pk=pk)
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user_groups = request.user.groups.values_list('name', flat=True)
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is_admin = request.user.is_superuser or 'Administrador' in user_groups
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is_finanzas = 'Administrador Finanzas' in user_groups or is_admin
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if action == 'solicitar':
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# Step 1 -> 2
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expense.approval_status = ApprovalStatusEnum.SOLICITADO_FINANZAS
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expense.elevated_by = request.user
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expense.save()
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AuditLog.objects.create(
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user=request.user,
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action="ELEVATE_REQUEST",
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entity_name="Expense",
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entity_id=expense.expense_code,
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description="Solicitud elevada a finanzas"
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)
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messages.success(request, "Solicitud elevada a finanzas.")
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elif action == 'pagar':
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# Step 2 -> 3
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if not is_finanzas:
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messages.error(request, "Solo Finanzas puede liberar el pago.")
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return redirect('dashboard')
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expense.approval_status = ApprovalStatusEnum.LIBERADO_PAGADO
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expense.paid_by = request.user
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expense.paid_at = timezone.now()
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expense.save()
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# Update Project Cost
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proj = expense.project
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proj.actual_cost_clp = proj.actual_cost_clp + expense.amount_clp
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proj.save()
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AuditLog.objects.create(
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user=request.user,
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action="APPROVE_PAYMENT",
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entity_name="Expense",
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entity_id=expense.expense_code,
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description="Pago liberado"
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)
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messages.success(request, "Pago liberado con éxito.")
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elif action == 'rechazar':
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expense.approval_status = ApprovalStatusEnum.OBSERVADO_RECHAZADO
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expense.save()
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AuditLog.objects.create(
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user=request.user,
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action="REJECT",
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entity_name="Expense",
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entity_id=expense.expense_code,
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description="Gasto observado/rechazado"
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)
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messages.warning(request, "Gasto rechazado.")
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return redirect(request.META.get('HTTP_REFERER', 'dashboard'))
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@login_required
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def export_expenses_csv(request):
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response = HttpResponse(content_type='text/csv')
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response['Content-Disposition'] = f'attachment; filename="Gastos_EFINTEL_{date.today()}.csv"'
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writer = csv.writer(response, delimiter=';')
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writer.writerow([
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'ID_Gasto', 'Codigo_Transaccion', 'Fecha', 'Proyecto_Codigo', 'Proyecto_Nombre',
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'Monto_CLP', 'Monto_USD', 'Moneda_Original', 'Estado_Aprobacion',
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'Responsable', 'Detalle', 'Region', 'Comuna', 'Proveedor'
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])
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expenses = Expense.objects.all().select_related('project', 'responsible_person')
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for exp in expenses:
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writer.writerow([
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exp.id,
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exp.expense_code,
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exp.date,
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exp.project.code,
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exp.project.name,
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exp.amount_clp,
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exp.amount_usd,
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exp.currency,
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exp.get_approval_status_display(),
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exp.responsible_person.username if exp.responsible_person else '',
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exp.description,
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exp.region,
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exp.comuna,
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exp.vendor
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])
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AuditLog.objects.create(
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user=request.user,
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action="EXPORT_CSV",
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description="Se descargó la matriz de gastos en formato CSV."
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)
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return response
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@login_required
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def project_list(request):
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projects = Project.objects.annotate(
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expense_count=Count('expenses'),
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total_expenses=Sum('expenses__amount_clp')
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).select_related('manager')
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context = {
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'projects': projects,
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}
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return render(request, 'expenses/project_list.html', context)
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@login_required
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@role_required('Administrador')
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def gestion_panel(request):
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projects = Project.objects.all().select_related('manager', 'created_by')
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responsables = User.objects.all().select_related('profile').prefetch_related('groups')
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settings_obj, _ = SystemSetting.objects.get_or_create(id=1)
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logs = AuditLog.objects.all().select_related('user')[:100]
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context = {
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'projects': projects,
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'responsables': responsables,
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'settings': settings_obj,
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'logs': logs,
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}
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return render(request, 'expenses/gestion.html', context)
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@login_required
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@role_required('Administrador')
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def settings_edit(request):
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setting, _ = SystemSetting.objects.get_or_create(id=1)
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if request.method == 'POST':
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form = SystemSettingForm(request.POST, instance=setting)
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if form.is_valid():
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form.save()
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messages.success(request, 'Configuración actualizada.')
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return redirect('gestion_panel')
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else:
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form = SystemSettingForm(instance=setting)
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return render(request, 'expenses/settings_form.html', {'form': form})
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@login_required
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@role_required('Administrador')
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def project_create(request):
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if request.method == 'POST':
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form = ProjectForm(request.POST)
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if form.is_valid():
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project = form.save(commit=False)
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project.created_by = request.user
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project.save()
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messages.success(request, 'Proyecto creado exitosamente.')
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return redirect('gestion_panel')
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else:
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form = ProjectForm()
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return render(request, 'expenses/project_form.html', {'form': form})
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@login_required
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@role_required('Administrador')
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def project_edit(request, pk):
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project = get_object_or_404(Project, pk=pk)
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if request.method == 'POST':
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form = ProjectForm(request.POST, instance=project)
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if form.is_valid():
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form.save()
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messages.success(request, 'Proyecto actualizado exitosamente.')
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return redirect('gestion_panel')
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else:
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form = ProjectForm(instance=project)
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return render(request, 'expenses/project_form.html', {'form': form})
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@login_required
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@role_required('Administrador')
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def project_delete(request, pk):
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project = get_object_or_404(Project, pk=pk)
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if request.method == 'POST':
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project.delete()
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messages.success(request, 'Proyecto eliminado.')
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return redirect('gestion_panel')
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@login_required
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@role_required('Administrador')
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def responsable_create(request):
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if request.method == 'POST':
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form = ResponsableForm(request.POST)
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if form.is_valid():
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form.save()
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messages.success(request, 'Responsable creado exitosamente.')
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return redirect('gestion_panel')
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else:
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form = ResponsableForm()
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return render(request, 'expenses/responsable_form.html', {'form': form})
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@login_required
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@role_required('Administrador')
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def responsable_edit(request, pk):
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user = get_object_or_404(User, pk=pk)
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if request.method == 'POST':
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form = ResponsableForm(request.POST, instance=user)
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if form.is_valid():
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form.save()
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messages.success(request, 'Responsable actualizado exitosamente.')
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return redirect('gestion_panel')
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else:
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form = ResponsableForm(instance=user)
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return render(request, 'expenses/responsable_form.html', {'form': form, 'edit_mode': True, 'target_user': user})
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@login_required
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@role_required('Administrador')
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def responsable_delete(request, pk):
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user = get_object_or_404(User, pk=pk)
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if request.method == 'POST':
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user.delete()
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messages.success(request, 'Responsable eliminado.')
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return redirect('gestion_panel')
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