from django.utils import timezone
from django.db import models
from django.contrib.auth.models import User
from django.template import Template, Context

from .models import *

from journals.models import *
from scipost.models import *

THESIS_TYPES = (
    ('MA', 'Master\'s'),
    ('PhD', 'Ph.D.'),
    ('Hab', 'Habilitation'),
    )
thesis_type_dict = dict(THESIS_TYPES)


class ThesisLink(models.Model):
    """ An URL pointing to a thesis """
    requested_by = models.ForeignKey (Contributor, blank=True, null=True, 
                                      related_name='thesislink_requested_by')
    vetted = models.BooleanField(default=False)
    vetted_by = models.ForeignKey (Contributor, blank=True, null=True)
    type = models.CharField(max_length=3, choices=THESIS_TYPES)
    discipline = models.CharField(max_length=20, choices=SCIPOST_DISCIPLINES, default='physics')
    domain = models.CharField(max_length=3, choices=SCIPOST_JOURNALS_DOMAINS, blank=True)
#    specialization = models.CharField(max_length=1, choices=SCIPOST_JOURNALS_SPECIALIZATIONS, 
#                                      blank=True)
    subject_area = models.CharField(max_length=10, choices=SCIPOST_SUBJECT_AREAS, default='Phys:QP')
    open_for_commenting = models.BooleanField(default=True)
    title = models.CharField(max_length=300, verbose_name='title')
    pub_link = models.URLField(verbose_name='URL (external repository)')
    author = models.CharField(max_length=1000)
    author_as_cont = models.ManyToManyField (Contributor, blank=True, 
                                             related_name='author_cont')
    author_claims = models.ManyToManyField (Contributor, blank=True, 
                                            related_name='authors_thesis_claims')
    author_false_claims = models.ManyToManyField (Contributor, blank=True, 
                                                  related_name='authors_thesis_false_claims')
    supervisor = models.CharField(max_length=1000, default='')
    supervisor_as_cont = models.ManyToManyField (Contributor, blank=True, 
                                                 verbose_name='supervisor(s)', 
                                                 related_name='supervisor_cont')
    institution = models.CharField(max_length=300, verbose_name='degree granting institution')
    defense_date = models.DateField(verbose_name='date of thesis defense')
    abstract = models.TextField(verbose_name='abstract, outline or summary')
    latest_activity = models.DateTimeField(default=timezone.now)

    def __str__ (self):
        return self.title

    def header_as_table (self):
        context = Context({'title': self.title, 'author': self.author,
                           'pub_link': self.pub_link, 'institution': self.institution,
                           'supervisor': self.supervisor, 'defense_date': self.defense_date})
        header = ('<table>'
                  '<tr><td>Title: </td><td>&nbsp;</td><td>{{ title }}</td></tr>'
                  '<tr><td>Author: </td><td>&nbsp;</td><td>{{ author }}</td></tr>'
                  '<tr><td>As Contributor: </td><td>&nbsp;</td>')
        if self.author_as_cont.all():
            for auth in self.author_as_cont.all():
                header += ('<td><a href="/contributor/' + str(auth.id) + '">' 
                           + auth.user.first_name + ' ' + auth.user.last_name + '</a></td>')
        else:
            header += '<td>(not claimed)</td>'
        header += ('</tr>'
                   '<tr><td>Type: </td><td></td><td>' + thesis_type_dict[self.type] + '</td></tr>'
                   '<tr><td>Discipline: </td><td></td><td>' + disciplines_dict[self.discipline] 
                   + '</td></tr>'
                   '<tr><td>Domain: </td><td></td><td>' + journals_domains_dict[self.domain] 
                   + '</td></tr>'
#                   '<tr><td>Specialization: </td><td></td><td>' 
#                   + journals_spec_dict[self.specialization] + '</td></tr>'
                   '<tr><td>Subject area: </td><td></td><td>' 
                   + subject_areas_dict[self.subject_area] + '</td></tr>'
                   '<tr><td>URL: </td><td>&nbsp;</td><td><a href="{{ pub_link }}" '
                   'target="_blank">{{ pub_link }}</a></td></tr>'
                   '<tr><td>Degree granting institution: </td><td>&nbsp;</td>'
                   '<td>{{ institution }}</td></tr>'
                   '<tr><td>Supervisor(s): </td><td></td><td>{{ supervisor }}</td></tr>'
                   '<tr><td>Defense date: </td><td>&nbsp;</td><td>{{ defense_date }}</td></tr>'
                   '</table>')
        template = Template(header)
        return template.render(context)


    def header_as_li (self):
        context = Context({'id': self.id, 'title': self.title, 'author': self.author,
                           'pub_link': self.pub_link, 'institution': self.institution,
                           'supervisor': self.supervisor, 'defense_date': self.defense_date,
                           'latest_activity': self.latest_activity.strftime('%Y-%m-%d %H:%M')})
        header = ('<li><div class="flex-container">'
                  '<div class="flex-whitebox0"><p><a href="/thesis/{{ id }}" '
                  'class="pubtitleli">{{ title }}</a></p>'
                  '<p>' + thesis_type_dict[self.type] + ' thesis by {{ author }} '
                  '(supervisor(s): {{ supervisor }}) in ' 
                  + disciplines_dict[self.discipline] + ', ' 
                  + journals_domains_dict[self.domain] + ' ' 
#                  + journals_spec_dict[self.specialization] + ' '
                  + subject_areas_dict[self.subject_area]
                  + '</p>'
                  '<p>Defense date: {{ defense_date }} - '
                  'Latest activity: {{ latest_activity }}</p></div>'
                  '</div></li>')
        template = Template(header)
        return template.render(context)


    def simple_header_as_li (self):
        # for Lists
        context = Context({'id': self.id, 'title': self.title, 'author': self.author})
        header = ('<li><div class="flex-container">'
                  '<div class="flex-whitebox0"><p><a href="/thesis/{{ id }}" '
                  'class="pubtitleli">{{ title }}</a></p>'
                  '<p>' + thesis_type_dict[self.type] 
                  + ' thesis by {{ author }} </div></div></li>')
        template = Template(header)
        return template.render(context)