# -*- coding: utf-8 -*-
# This file is part of the cashbook-module from m-ds for Tryton.
# The COPYRIGHT file at the top level of this repository contains the
# full copyright notices and license terms.

from trytond.model import ModelView, ModelSQL, fields, Check
from trytond.pyson import Eval, Or, Bool, Id, Len
from trytond.transaction import Transaction
from .colors import sel_color as sel_bgcolor


sel_etype = [
    ('book', 'Cashbooks'),
    ('type', 'Types of Cashbooks'),
    ('currency', 'Currencys'),
    ]

sel_chart = [
    ('vbar', 'Vertical Bars'),
    ('hbar', 'Horizontal Bars'),
    ('pie', 'Pie'),
    ('line', 'Line'),
    ]


sel_maincolor = [
    ('default', 'Default'),
    ('red', 'Red'),
    ('green', 'Green'),
    ('grey', 'Grey'),
    ('black', 'Black'),
    ('darkcyan', 'Dark Cyan'),
]


class Evaluation(ModelSQL, ModelView):
    'Evaluation'
    __name__ = 'cashbook_report.evaluation'

    company = fields.Many2One(string='Company', model_name='company.company',
        required=True, ondelete="RESTRICT")
    name = fields.Char(string='Name', required=True)
    dtype = fields.Selection(string='Data type', required=True,
        sort=False, selection=sel_etype,
        help='Type of data displayed')
    chart = fields.Selection(string='Chart type', required=True,
        sort=False, selection=sel_chart,
        help='Type of graphical presentation.')
    legend = fields.Boolean(string='Legend')
    maincolor = fields.Selection(string='Color scheme', required=True,
        help='The color scheme determines the hue of all components of the chart.',
        selection=sel_maincolor, sort=False)
    bgcolor = fields.Selection(string='Background Color', required=True,
        help='Background color of the chart area.', sort=False,
        selection=sel_bgcolor)
    posted = fields.Boolean(string='Posted', help='Posted amounts only.')
    lines = fields.Many2Many(string='Cashbooks',
        relation_name='cashbook_report.eval_book',
        origin='evaluation', target='cashbook')

    @staticmethod
    def default_company():
        return Transaction().context.get('company') or None

    @classmethod
    def default_posted(cls):
        """ default: False
        """
        return False

    @classmethod
    def default_bgcolor(cls):
        """ default: Yellow 5
        """
        return '#ffffc0'

    @classmethod
    def default_maincolor(cls):
        """ default: 'default'
        """
        return 'default'

    @classmethod
    def default_legend(cls):
        """ default True
        """
        return True

    @classmethod
    def default_dtype(cls):
        """ default 'book'
        """
        return 'book'

    @classmethod
    def default_chart(cls):
        """ default 'pie'
        """
        return 'pie'

# end Evaluation


class EvaluationCashbookRel(ModelSQL):
    'Evaluation Cashbook Relation'
    __name__ = 'cashbook_report.eval_book'

    evaluation = fields.Many2One(string='Evaluation', required=True,
        select=True, ondelete='CASCADE',
        model_name='cashbook_report.evaluation')
    cashbook = fields.Many2One(string='Cashbook', required=True,
        select=True, ondelete='CASCADE',
        model_name='cashbook.book')

# end EvaluationCashbookRel