from django.shortcuts import render, get_object_or_404, redirect, resolve_url

from markdown2 import markdown
from datetime import datetime

from . import models, forms
from .decorators import check_allowed

import logging
logger = logging.getLogger(__name__)


def forbidden(request):
    return render(request, 'interface/forbidden.html', {})

def register(request):
    
    request.ensemble_id = request.session.get('ensemble')
    registered = request.session.setdefault('registered', {})

    if request.method == "POST":
        form = forms.CodeForm(request.POST)

        if form.is_valid():

            data = form.cleaned_data;
            ensemble = models.Ensemble.objects.get(code=data['code'].replace('-', ''))

            
            if ensemble.passphrase == data['passphrase']:
                request.session['ensemble'] = ensemble.pk
                registered[ensemble.code] = ensemble.pk
                return redirect('my_projects')

    else:
        form = forms.CodeForm(initial=request.GET)
    
    current = models.Ensemble.objects.filter(pk__in=registered.values())

    return render(request, 'interface/register.html', {'form': form, 'current': current})


@check_allowed
def my_projects(request):
    ensemble = get_object_or_404(models.Ensemble, pk=request.ensemble_id)
    context = {'ensemble': ensemble}
    return render(request, 'interface/project_list.html', context)

@check_allowed
def project_page(request, project_id):
    project = get_object_or_404(models.Project, pk=project_id, ensemble_id=request.ensemble_id)
    context = {'project': project}
    return render(request, 'interface/project.html', context)

@check_allowed
def wiki_page(request, project_id, wiki_id):
    wiki = get_object_or_404(models.WikiPage, pk=wiki_id, project=project_id, project__ensemble=request.ensemble_id)
    context = {'project': wiki.project, 'wiki': wiki, 'wiki_html': markdown(wiki.markdown)}
    return render(request, 'interface/wiki.html', context)

@check_allowed
def submission(request, project_id):
    project = get_object_or_404(models.Project, pk=project_id, ensemble=request.ensemble_id)

    if request.method == 'POST':
        form = forms.SubmissionForm(request.POST)

        if form.is_valid():
            s = form.save(commit=False)
            s.project_id = project_id
            s.save()

            data = form.cleaned_data
            request.session['name'] = data['name']
            request.session['instrument'] = data['instrument']

            redirect = request.build_absolute_uri(resolve_url('complete_submission', project_id=project.pk, submission_id=s.pk))

            upload = project.presigned_post(s.generate_key(),
                    fields={'success_action_redirect': redirect}, 
                    conditions=[["starts-with", "$success_action_redirect", ""]])
            context = {'upload': upload, 'project': project, 'submission': s}

            return render(request, 'interface/upload.html', context)
    else:
        initial = { k: request.session.get(k) for k in ('name', 'instrument') }
        form = forms.SubmissionForm(initial=initial)

    context = {'project': project, 'form': form}
    return  render(request, 'interface/submission.html', context)

@check_allowed
def cancel_submission(request, project_id, submission_id):
    project = get_object_or_404(models.Project, pk=project_id, ensemble=request.ensemble_id)
    submission = project.all_submissions.get(pk=submission_id)
    submission.delete()
    return redirect('project', project_id=project_id)

@check_allowed
def complete_submission(request, project_id, submission_id):
    project = get_object_or_404(models.Project, pk=project_id, ensemble=request.ensemble_id)
    s = project.all_submissions.get(pk=submission_id)
    s.complete = True
    s.key = request.GET['key']
    s.save()
    return redirect('project', project_id=project_id)