from datetime import date
from django.shortcuts import render, get_object_or_404, redirect
from django.views.decorators.csrf import ensure_csrf_cookie
from django.views.decorators.http import require_POST
from plants.models import Plant, Species, PruningLog, PlantPhoto
from plants.forms import PlantForm, PruningLogForm
from plants.utils.pruning import pruning_status


def plant_list(request):
    qs = Plant.objects.select_related('species', 'location').all()
    q = request.GET.get('q', '')
    indoor_filter = request.GET.get('filter', '')

    if q:
        qs = qs.filter(name__icontains=q) | qs.filter(location__name__icontains=q)
    if indoor_filter == 'indoor':
        qs = qs.filter(is_indoor=True)
    elif indoor_filter == 'outdoor':
        qs = qs.filter(is_indoor=False)

    template = (
        'plants/partials/plant_list_results.html'
        if request.htmx
        else 'plants/plant_list.html'
    )
    return render(request, template, {'plants': qs, 'q': q, 'filter': indoor_filter})


def plant_detail(request, pk):
    plant = get_object_or_404(
        Plant.objects.select_related('species', 'location').prefetch_related('pruning_logs', 'photos'),
        pk=pk,
    )
    today = date.today()
    return render(request, 'plants/plant_detail.html', {
        'plant': plant,
        'pruning_status': pruning_status(plant, today),
        'log_form': PruningLogForm(initial={'pruned_on': today}),
        'today': today,
    })


@require_POST
def log_pruning(request, pk):
    plant = get_object_or_404(
        Plant.objects.prefetch_related('pruning_logs'), pk=pk
    )
    form = PruningLogForm(request.POST)
    if form.is_valid():
        log = form.save(commit=False)
        log.plant = plant
        log.save()
    today = date.today()
    return render(request, 'plants/partials/pruning_strip.html', {
        'plant': plant,
        'pruning_status': pruning_status(plant, today),
        'log_form': PruningLogForm(initial={'pruned_on': today}),
    })


@ensure_csrf_cookie
def plant_add(request):
    species_id = request.GET.get('species_id') or request.POST.get('species_id')
    species = None

    if species_id and species_id != 'skip':
        species = get_object_or_404(Species, pk=species_id)

    if species_id is None and request.method == 'GET':
        return render(request, 'plants/species_search.html')

    if request.method == 'POST':
        form = PlantForm(request.POST, request.FILES)
        if form.is_valid():
            plant = form.save(commit=False)
            plant.species = species
            plant.save()
            return redirect('plant_detail', pk=plant.pk)
    else:
        initial = {'bloom_months': species.bloom_months} if species else {}
        form = PlantForm(initial=initial)

    return render(request, 'plants/plant_form.html', {
        'form': form,
        'species': species,
        'species_id': species_id,
        'title': 'Add Plant',
    })


def plant_edit(request, pk):
    plant = get_object_or_404(Plant, pk=pk)
    if request.method == 'POST':
        form = PlantForm(request.POST, request.FILES, instance=plant)
        if form.is_valid():
            form.save()
            return redirect('plant_detail', pk=plant.pk)
    else:
        form = PlantForm(instance=plant)
    return render(request, 'plants/plant_form.html', {
        'form': form,
        'plant': plant,
        'title': 'Edit Plant',
    })


def plant_delete(request, pk):
    plant = get_object_or_404(Plant, pk=pk)
    if request.method == 'POST':
        plant.delete()
        return redirect('plant_list')
    return render(request, 'plants/plant_confirm_delete.html', {'plant': plant})


@require_POST
def upload_photo(request, pk):
    plant = get_object_or_404(Plant.objects.prefetch_related('photos'), pk=pk)
    if request.FILES.get('image'):
        PlantPhoto.objects.create(plant=plant, image=request.FILES['image'])
    return render(request, 'plants/partials/photo_gallery.html', {'plant': plant})


@require_POST
def set_thumbnail(request, photo_pk):
    photo = get_object_or_404(PlantPhoto, pk=photo_pk)
    PlantPhoto.objects.filter(plant=photo.plant).update(is_thumbnail=False)
    photo.is_thumbnail = True
    photo.save(update_fields=['is_thumbnail'])
    plant = Plant.objects.prefetch_related('photos').get(pk=photo.plant_id)
    return render(request, 'plants/partials/photo_gallery.html', {'plant': plant})


@require_POST
def delete_photo(request, photo_pk):
    photo = get_object_or_404(PlantPhoto, pk=photo_pk)
    plant = Plant.objects.prefetch_related('photos').get(pk=photo.plant_id)
    photo.image.delete(save=False)
    photo.delete()
    plant.refresh_from_db()
    plant = Plant.objects.prefetch_related('photos').get(pk=plant.pk)
    return render(request, 'plants/partials/photo_gallery.html', {'plant': plant})