# -*- coding: utf-8 -*-
#
# Copyright Grégory Soutadé 2015

# This file is part of iwla

# iwla is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# iwla is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with iwla.  If not, see <http://www.gnu.org/licenses/>.
#

from iwla import IWLA
from iplugin import IPlugin
from display import *
import logging

"""
Display hook interface

Enlight new and updated statistics

Plugin requirements :
    None

Conf values needed :
    None

Output files :
    None

Statistics creation :
    None

Statistics update :
    None

Statistics deletion :
    None
"""

class IWLADisplayStatsDiff(IPlugin):
    def __init__(self, iwla):
        super(IWLADisplayStatsDiff, self).__init__(iwla)
        self.API_VERSION = 1
        self.month_stats_key = None
        # Set >= if month_stats[self.month_stats_key] is a list or a tuple
        self.stats_index = -1
        self.filename = None
        self.block_name = None
        self.logger = logging.getLogger(__name__)

    def load(self):
        if not self.month_stats_key or not self.filename or\
                not self.block_name:
            self.logger('Bad parametrization')
            return False
        month_stats = self.iwla.getMonthStats()
        self.cur_stats = {k:v for (k,v) in month_stats.get(self.month_stats_key, {}).items()}
        return True

    def hook(self):
        display = self.iwla.getDisplay()
        month_stats = self.iwla.getMonthStats()

        path = self.iwla.getCurDisplayPath(self.filename)
        page = display.getPage(path)
        if not page:
            self.logger.error('No page for %s' % (path))
            return
        title = self.iwla._(self.block_name)
        block = page.getBlock(title)
        if not block:
            self.logger.error('Block %s not found' % (title))
            return

        stats_diff = {}
        for (k, v) in month_stats[self.month_stats_key].items():
            new_value = self.cur_stats.get(k, 0)
            if new_value:
                if self.stats_index != -1:
                    if new_value[self.stats_index] != v[self.stats_index]:
                        stats_diff[k] = 'iwla_update'
                else:
                    if new_value != v:
                        stats_diff[k] = 'iwla_update'
            else:
                stats_diff[k] = 'iwla_new'

        for (idx, row) in enumerate(block.rows):
            for k in stats_diff.keys():
                if k in row[0]:
                    block.setCellCSSClass(idx, 0, stats_diff[k])