from django.shortcuts import render, get_object_or_404
from .models import Feeding, Potty
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
from .forms import FeedingForm, PottyForm


def index(request):
    context = {}

    feedings = Feeding.objects.all().order_by('-timestamp')

    context['feedings'] = feedings

    # Grab all objects sorted by timestamp (most recent first)
    potties = Potty.objects.all().order_by('-timestamp')
    

    context['potties'] = potties

    return render(request, 'main/index.html', context)


def add_feed(request):
    context = {}
    if request.method == 'POST':
        form = FeedingForm(request.POST)
        if form.is_valid():
            feeding_type = form.cleaned_data['feeding_type']
            amount = form.cleaned_data['amount']
            duration = form.cleaned_data['duration']            
            # Validate based on feeding type
            if feeding_type == 'bottle' and not amount:
                form.add_error('amount', 'Amount is required for bottle feeding.')
            elif feeding_type == 'breast' and not duration:
                form.add_error('duration', 'Duration is required for breast feeding.')
            else:
                form.save()
                feedings = Feeding.objects.all().order_by('-timestamp')
                context['feedings'] = feedings
                return render(request, 'main/partials/feed_section.html', context)
              
    else:
        form = FeedingForm()

    return render(request, 'main/partials/add_feed.html', {'form': form})


@csrf_exempt
def delete_feed(request, feed_id):
    context = {}
    if request.method == "DELETE":
        feed = get_object_or_404(Feeding, id=int(feed_id))
        feed.delete()
        feedings = Feeding.objects.all().order_by('-timestamp')
        context['feedings'] = feedings
        return render(request, 'main/partials/feed_section.html', context)  # Return a success response
    return HttpResponse(status=405)  # Method not allowed

from django.shortcuts import get_object_or_404, render

@csrf_exempt
def edit_feed(request, feed_id):
    feed = get_object_or_404(Feeding, id=feed_id)
    return render(request, 'main/partials/edit_feed_row.html', {'feeding': feed})


@csrf_exempt
def update_feed(request, feed_id):
    
    if request.method == "POST":
        feed = get_object_or_404(Feeding, id=feed_id)
        feed.timestamp = request.POST['timestamp']
        if feed.feeding_type == 'bottle':
            feed.amount = float(request.POST['amount_or_duration'])
        else:
            feed.duration = int(float(request.POST['amount_or_duration']))
        feed.notes = request.POST['notes']
        feed.save()
        return render(request, 'main/partials/feed_row.html', {'feeding': feed})
    
def cancel_edit_feed(request, feed_id):
    feed = get_object_or_404(Feeding, id=feed_id)
    return render(request, 'main/partials/feed_row.html', {'feeding': feed})

def add_potty(request):
    context = {}
    if request.method == 'POST':
        form = PottyForm(request.POST)
        if form.is_valid():
            form.save()
            potties = Potty.objects.all().order_by('-timestamp')
            context['potties'] = potties
            return render(request, 'main/partials/potty_section.html', context)
    else:
        form = PottyForm()

    return render(request, 'main/partials/add_potty.html', {'form': form})

@csrf_exempt
def delete_potty(request, potty_id):
    context = {}
    if request.method == 'DELETE':
        potty = get_object_or_404(Potty, id=int(potty_id))
        potty.delete()
        potties = Potty.objects.all().order_by('-timestamp')
        context['potties'] = potties
        return render(request, 'main/partials/potty_section.html', context)
    return HttpResponse(status=405)

@csrf_exempt
def edit_potty(request, potty_id):
    context = {}
    potty = get_object_or_404(Potty, id=potty_id)
    context['potty'] = potty
    form = PottyForm(potty)
    context['form'] = form
    return render(request, 'main/partials/edit_potty_row.html', context)


@csrf_exempt
def update_potty(request, potty_id):
    context = {}
    if request.method == 'POST':
        potty = get_object_or_404(Potty, id=potty_id)
        potty.timestamp = request.POST['timestamp']
        potty.consistency = request.POST['consistency']
        potty.notes = request.POST['notes']
        potty.save()
        return render(request, 'main/partials/potty_row.html', {'potty': potty})


def cancel_edit_potty(request, potty_id):
    potty = get_object_or_404(Potty, id=potty_id)
    return render(request, 'main/partials/potty_row.html', {'potty': potty})

import csv
from django.http import HttpResponse

def export_feedings_csv(request):
    # Create the HTTP response with CSV headers
    response = HttpResponse(content_type='text/csv')
    response['Content-Disposition'] = 'attachment; filename="feedings.csv"'

    # Create a CSV writer
    writer = csv.writer(response)
    # Write the header row
    writer.writerow(['Timestamp', 'Feeding Type', 'Amount', 'Duration', 'Notes'])

    # Fetch the data from the database
    feedings = Feeding.objects.all().order_by('-timestamp')
    for feeding in feedings:
        writer.writerow([
            feeding.timestamp,
            feeding.get_feeding_type_display(),  # Use readable choices if applicable
            feeding.amount if feeding.amount else "",
            feeding.duration if feeding.duration else "",
            feeding.notes,
        ])

    return response

def export_potties_csv(request):
    # Create the HTTP response with CSV headers
    response = HttpResponse(content_type='text/csv')
    response['Content-Disposition'] = 'attachment; filename="potties.csv"'

    # Create a CSV writer
    writer = csv.writer(response)
    # Write the header row
    writer.writerow(['Timestamp', 'Consistency', 'Notes'])

    # Fetch the potty data from the database
    potties = Potty.objects.all().order_by('-timestamp')
    for potty in potties:
        writer.writerow([
            potty.timestamp,
            potty.get_consistency_display() if potty.consistency else "",
            potty.notes,
        ])

    return response