# -*- 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 odoo import models, fields, api, _
from odoo.exceptions import UserError, ValidationError
from dateutil.relativedelta import relativedelta
_LOGGER = logging.getLogger(__name__)

def get_root_category(category_id):
    """ Get Root Category """
    if not category_id.parent_id:
        return category_id
    return get_root_category(category_id.parent_id)

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

    season_id = fields.Many2one('golem.season', required=True)
    member_id = fields.Many2one('golem.member', 'Season')
    area_id = fields.Many2one(related='member_id.area_id', store=True)
    gender = fields.Selection(related='member_id.gender', store=True)
    category_id = fields.Many2many('res.partner.category')
    age_start_season = fields.Integer(compute='_compute_age', string='Age at season start')
    age_end_season = fields.Integer(compute='_compute_age', string='Age at season end')
    age_range_start_season = fields.Many2one('golem.member.age.range', 'Age range at season start',
                                             compute='_compute_age_range', store=True)
    age_range_end_season = fields.Many2one('golem.member.age.range', 'Age range at season end',
                                           compute='_compute_age_range', store=True)
    @api.constrains('member_id')
    def compute_fields(self):
        for rec in self:
            rec.category_id = get_root_category(rec.member_id.category_id)


    @api.depends('member_id')
    def _compute_category_id(self):
        """ Compute category_id """
        for rec in self:
            rec.category_id = get_root_category(rec.member_id.category_id)

    @api.depends('member_id')
    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.age_end_season = age_end_season.years
                rec.age_start_season = age_start_season.years

    @api.multi
    @api.depends('age_start_season', 'age_end_season')
    def _compute_age_range(self):
        """ Compute age range """
        for rec in self:
            if rec.age_start_season is not None:
                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 is not None:
                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