from django.template import RequestContext

from models import Organisation, Datasheet, TaggedSheet, Tag

#@login_required

def home(request):

    # Get all organisations

    orgas = Organisation.objects.all()

    # Count all validated, unvalidated sheets for each organisation

    org_list = []

    for orga in orgas :

        all_datasheets = Datasheet.objects.filter(organisation=orga)

        nb_all = len(all_datasheets)

        nb_val = len(all_datasheets.filter(validated=True))

        nb_unval = len(all_datasheets.filter(validated=False))

        org_list.append({'organisation':orga, 'nb_all':nb_all, 'nb_val':nb_val, 'nb_unval':nb_unval})

    return render_to_response("partial/organisation_list.html",

                              {'organisations':org_list},

                              context_instance=RequestContext(request))

#@login_required

def list_for_orga(request, orga_id=None, valid=None, start_index=None):

    orga = Organisation.objects.get(id=orga_id)

    orga_name = orga.name

    if start_index :

        try:

            start_index = int(start_index)

        except :

            start_index = 0

    else :

        start_index = 0

    # If valid = 0, we search unvalidated sheets

    # If valid = 1, we search validated sheets

    # If valid = 2, we search AND DISPLAY all sheets

    if valid == "1" :

        # We count all the validated sheets

        datasheets = Datasheet.objects.filter(organisation=orga).filter(validated=True)

        nb_sheets = len(datasheets)

        # And select the current one

        datasheets = [datasheets[start_index]]

    elif valid != "2":

        # We count all the validated sheets

        datasheets = Datasheet.objects.filter(organisation=orga).filter(validated=False)

        nb_sheets = len(datasheets)

        # And select the current one

        datasheets = [datasheets[start_index]]

    else :

        datasheets = Datasheet.objects.filter(organisation=orga)

        nb_sheets = len(datasheets)

    # We get the ORDERED tags if we display one sheet (case valid = 0 and 1)

    ordered_tags = None

    if valid != "2" :

        ordered_tags = TaggedSheet.objects.filter(datasheet=datasheets[0]).order_by('order')

    displayed_index = start_index + 1;

    prev_index = max(start_index - 1, 0);

    next_index = min(nb_sheets - 1, start_index + 1);

    last_index = max(nb_sheets - 1, 0);

    return render_to_response("partial/list_for_orga.html",

                              {'datasheets':datasheets, 'orga_name':orga_name,

                               'nb_sheets':nb_sheets,'orga_id':orga_id, 'ordered_tags':ordered_tags,

                               'prev_index':prev_index, 'next_index':next_index, 'last_index':last_index,

                               'start_index':start_index, 'displayed_index':displayed_index, 'valid':valid},

                              context_instance=RequestContext(request))

#@login_required

def tag_up_down(request):

    ds_id = request.POST["datasheet_id"]

    tag_id = request.POST["tag_id"]

    # move can be "u" or "d", for up and down

    move = request.POST["move"]

    # First we get the datasheet's TaggedSheets

    ds_tags = TaggedSheet.objects.filter(datasheet=Datasheet.objects.filter(id=ds_id)[0])

    # We get the current TaggedSheet ans its's order

    ts = ds_tags.filter(tag=Tag.objects.filter(id=tag_id))[0]

    tag_order = ts.order

    if move == "u" :

        next_order = tag_order - 1

    elif move == "d" :

        next_order = tag_order + 1

    else :

        next_order = None

    # We get the other TaggedSheet that will be moved

    other_ts = ds_tags.filter(order=next_order)[0]

    # We switch the orders

    ts.order = next_order

    other_ts.order = tag_order

    ts.save()

    other_ts.save()

    return get_tag_table(request=request, ds_id=ds_id, valid=0)

#@login_required

def get_tag_table(request=None, ds_id=None, valid=None):

    ordered_tags = TaggedSheet.objects.filter(datasheet=Datasheet.objects.filter(id=ds_id)[0]).order_by('order')

    return render_to_response("partial/tag_table.html",

                              {'ordered_tags':ordered_tags, 'valid':valid},

                              context_instance=RequestContext(request))