# -*- coding: utf-8 -*-
#
#    Copyright 2019 Fabien Bourgeois <fabien@yaltik.com>
#    Copyright 2019 Youssef El Ouahby <youssef@yaltik.com>
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program 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 Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.

""" GOLEM Members Analysis Pivot Management """

import logging
from dateutil.relativedelta import relativedelta
from odoo import models, fields, api, _
_LOGGER = logging.getLogger(__name__)


class GolemMemberAnalysisPivot(models.TransientModel):
    """ GOLEM Members Analysis Pivot Management """
    _name = 'golem.member.analysis'
    _description = 'GOLEM Members Analysis Management'

    member_analysis_id = fields.Many2one('golem.member.analysis.wizard', index=True)
    season_id = fields.Many2one('golem.season', 'Season', required=True,
                                ondelete='cascade')
    member_id = fields.Many2one('golem.member', 'Service user')
    area_id = fields.Many2one('golem.partner.area')
    gender = fields.Selection([('male', _('Male')),
                               ('female', _('Female')),
                               ('not_disclosed', _('Not Disclosed'))])
    category_id = fields.Many2one('res.partner.category')
    age_start_season = fields.Integer(string='Age at season start')
    age_end_season = fields.Integer(string='Age at season stop')
    age_now = fields.Integer()
    age_range_start_season = fields.Many2one('golem.member.age.range',
                                             'Age range at season start')
    age_range_end_season = fields.Many2one('golem.member.age.range',
                                           'Age range at season end')
    age_range_now = fields.Many2one('golem.member.age.range', 'Age range now')

    @api.model
    def get_root_category(self, category_ids):
        """ Get Root Category """
        categories = self.env['res.partner.category']
        for category_id in category_ids:
            if not category_id.parent_id:
                return category_id
            categories |= category_id.parent_id
        return self.get_root_category(categories)

    @api.constrains('member_id')
    @api.multi
    def compute_fields(self):
        """ compute model fields """
        for rec in self:
            rec.area_id = rec.member_id.area_id
            rec.gender = rec.member_id.gender
            if rec.member_id.category_id:
                rec.category_id = self.get_root_category(rec.member_id.category_id)
            rec._compute_age()
            rec._compute_age_range()

    @api.multi
    def _compute_age(self):
        """ Compute age """
        for rec in self:
            if(rec.member_id.birthdate_date and rec.season_id.date_start
               and rec.season_id.date_end):
                start_season = fields.Date.from_string(rec.season_id.date_start)
                end_season = fields.Date.from_string(rec.season_id.date_end)
                age_start_season = relativedelta(
                    start_season,
                    fields.Date.from_string(rec.member_id.birthdate_date)
                )
                age_end_season = relativedelta(
                    end_season,
                    fields.Date.from_string(rec.member_id.birthdate_date)
                )
                rec.write({'age_end_season': age_end_season.years,
                           'age_start_season': age_start_season.years,
                           'age_now': rec.member_id.age})

    @api.multi
    def _compute_age_range(self):
        """ Compute age range """
        for rec in self:
            if rec.age_start_season:
                age_range = self.env['golem.member.age.range'].search(
                    [('lower_bound', '<=', rec.age_start_season),
                     ('higher_bound', '>=', rec.age_start_season)],
                    limit=1)
                rec.age_range_start_season = age_range
            if rec.age_end_season:
                age_range = self.env['golem.member.age.range'].search(
                    [('lower_bound', '<=', rec.age_end_season),
                     ('higher_bound', '>=', rec.age_end_season)],
                    limit=1)
                rec.age_range_end_season = age_range
            if rec.age_now:
                age_range = self.env['golem.member.age.range'].search(
                    [('lower_bound', '<=', rec.age_now),
                     ('higher_bound', '>=', rec.age_now)],
                    limit=1)
                rec.age_range_now = age_range