# -*- coding: utf-8 -*-
from datetime import datetime

from openerp import api, fields, models, _
from openerp.addons.base_iban import base_iban
from openerp.exceptions import UserError, ValidationError

import openerp.addons.decimal_precision as dp

_REQUIRED = ['email','firstname','lastname','birthdate','address','share_product_id','ordered_parts','zip_code','city','iban','no_registre','gender']  # Could be improved including required from model

@api.model
def _lang_get(self):
    languages = self.env['res.lang'].search([])
    return [(language.code, language.name) for language in languages]

class subscription_request(models.Model):
    _name = 'subscription.request'
    _description = 'Subscription Request'
    
    def get_required_field(self):
        return _REQUIRED
    
    @api.model
    def create(self,vals):
        if not vals.get('partner_id'):
            cooperator = False
            if vals.get('no_registre'):
                cooperator = self.env['res.partner'].get_cooperator_from_nin(vals.get('no_registre'))
            if cooperator:
                # TODO remove the following line of code once it has 
                # been founded a way to avoid dubble entry
                cooperator = cooperator[0] 
                if cooperator.member:
                    vals['type'] = 'increase'
                    vals['already_cooperator'] = True
                else:
                    vals['type'] = 'subscription'
                vals['partner_id'] = cooperator.id

                if not cooperator.cooperator:
                    cooperator.write({'cooperator':True})

        subscr_request = super(subscription_request, self).create(vals)
        mail_template_obj = self.env['mail.template']
        confirmation_mail_template = mail_template_obj.search([('name', '=', 'Confirmation Email')])[0]
        confirmation_mail_template.send_mail(subscr_request.id)
        return subscr_request
    
    @api.model
    def create_comp_sub_req(self, vals):
        if not vals.get('partner_id'):
            cooperator = self.env['res.partner'].get_cooperator_from_crn(vals.get('company_register_number'))
            if cooperator:
                vals['partner_id'] = cooperator.id
                vals['type'] = 'increase'
                vals['already_cooperator'] = True
        subscr_request = super(subscription_request, self).create(vals)
        mail_template_obj = self.env['mail.template']
        confirmation_mail_template = mail_template_obj.search([('name', '=', 'Company Confirmation Email')])[0]
        confirmation_mail_template.send_mail(subscr_request.id, True)
        return subscr_request
    
    def check_belgian_identification_id(self, nat_register_num):
        if not self.check_empty_string(nat_register_num):
            return False
        if len(nat_register_num) != 11:
            return False
        if not nat_register_num.isdigit():
            return False
        birthday_number = nat_register_num[0:9]
        controle = nat_register_num[9:11]
        check_controle = 97 - (int(birthday_number) % 97)
        if int(check_controle) != int(controle):
            check_controle = 97 - ((2000000000 + int(birthday_number)) % 97)
            if int(check_controle) != int(controle):
                return False
        return True
    
    def check_empty_string(self, value):
        if value == None or value == False or value == '':
            return False
        return True
    
    @api.multi
    @api.depends('iban', 'no_registre','skip_control_ng')
    def _validated_lines(self):
        for sub_request in self:
            try:
                base_iban.validate_iban(sub_request.iban)
                sub_request.validated = True
            except ValidationError:
                sub_request.validated = False
            
            if not sub_request.is_company and (sub_request.skip_control_ng or self.check_belgian_identification_id(sub_request.no_registre)):
                sub_request.validated = True
    
    @api.multi
    @api.depends('share_product_id', 'share_product_id.list_price','ordered_parts')
    def _compute_subscription_amount(self):
        for sub_request in self:
            sub_request.subscription_amount = sub_request.share_product_id.list_price * sub_request.ordered_parts
    
    already_cooperator = fields.Boolean(string="I'm already cooperator")    
    name = fields.Char(string='Name', required=True)
    firstname = fields.Char(string='Firstname')
    lastname = fields.Char(string='Lastname')
    birthdate = fields.Date(string="Birthdate")
    gender = fields.Selection([('male', _('Male')),
                               ('female', _('Female')),
                               ('other', _('Other'))], string='Gender')
    type = fields.Selection([('new','New Cooperator'),
                             ('subscription','Subscription'),
                             ('increase','Increase number of share')],
                             string='Type', default="new")
    state = fields.Selection([('draft','Draft'),
                              ('block','Blocked'),
                              ('done','Done'),
                              ('cancelled','Cancelled'),
                              ('paid','paid')], 
                             string='State',required=True, default="draft")
    email = fields.Char(string='Email')
    iban = fields.Char(string='Account Number')
    partner_id = fields.Many2one('res.partner',string='Cooperator')
    share_product_id = fields.Many2one('product.product', string='Share type', domain=[('is_share','=',True)])
    share_short_name = fields.Char(related='share_product_id.short_name', string='Share type name')
    share_unit_price = fields.Float(related='share_product_id.list_price', string='Share price')
    subscription_amount = fields.Float(compute='_compute_subscription_amount', string='Subscription amount')
    ordered_parts = fields.Integer(string='Number of Share')
    address = fields.Char(string='Address')
    city = fields.Char(string='City')
    zip_code = fields.Char(string='Zip Code')
    country_id = fields.Many2one('res.country', string='Country', ondelete='restrict')
    phone = fields.Char(string='Phone')
    no_registre = fields.Char(string='National Register Number')
    user_id = fields.Many2one('res.users', string='Responsible', readonly=True)
    validated = fields.Boolean(compute='_validated_lines', string='Valid Line?', readonly=True)
    skip_control_ng = fields.Boolean(string="Skip control", 
                            help="if this field is checked then no control will be done on the national register number and on the iban bank account. To be done in case of the id card is from abroad or in case of a passport")
    lang = fields.Selection(_lang_get, 'Language', default='fr_BE',
        help="If the selected language is loaded in the system, all documents related to this contact will be printed in this language. If not, it will be English.")
    date = fields.Date(string='Subscription date request', default=lambda self: datetime.strftime(datetime.now(), '%Y-%m-%d'))
    company_id = fields.Many2one('res.company', string='Company', required=True, 
                                 change_default=True, readonly=True,
                                 default=lambda self: self.env['res.company']._company_default_get())
    is_company = fields.Boolean(string='Is a company')
    is_operation = fields.Boolean(string='Is an operation')
    company_name = fields.Char(string="Company name")
    company_email = fields.Char(string="Company email")
    company_register_number = fields.Char(string='Company register number')
    company_type = fields.Selection([('scrl','SCRL'),
                                     ('asbl','ASBL'),
                                     ('sprl','SPRL'),
                                     ('sa','SA'),
                                     ('other','Other')])
    same_address = fields.Boolean(string='Same address')
    activities_address = fields.Char(string='Activities address')
    activities_city = fields.Char(string='Activities city')
    activities_zip_code = fields.Char(string='Activities zip Code')
    activities_country_id = fields.Many2one('res.country', string='Activities country', ondelete='restrict')
    contact_person_function = fields.Char(string='Function')
    operation_request_id = fields.Many2one('operation.request', string="Operation Request")
    is_operation = fields.Boolean(string="Is Operation request")
    capital_release_request = fields.One2many('account.invoice','subscription_request', string='Subscription request')
    capital_release_request_date = fields.Date(string="Force the capital release request date",
                                               help="Keep empty to use the current date", copy=False) 
    source = fields.Selection([('website','Website'),
                               ('crm','CRM'),
                               ('manual','Manual')], string="Source", default="website")
    _order = "id desc"
    
    def _prepare_invoice_line(self, product, partner, qty):
        self.ensure_one()
        res = {}
        account = product.property_account_income_id or product.categ_id.property_account_income_categ_id
        if not account:
            raise UserError(_('Please define income account for this product: "%s" (id:%d) - or for its category: "%s".') % \
                            (product.name, product.id, product.categ_id.name))

        fpos = partner.property_account_position_id
        if fpos:
            account = fpos.map_account(account)

        res = {
            'name': product.name,
            'account_id': account.id,
            'price_unit': product.lst_price,
            'quantity': qty,
            'uom_id': product.uom_id.id,
            'product_id': product.id or False,
        }
        return res
    
    def send_capital_release_request(self, invoice):
        invoice_email_template = self.env['mail.template'].search([('name', '=', 'Request to Release Capital - Send by Email')])[0]
        
        # we send the email with the capital release request in attachment 
        invoice_email_template.send_mail(invoice.id, True)
        invoice.sent = True
        
    def create_invoice(self, partner):
        # get subscription journal
        journal = self.env['account.journal'].search([('code','=','SUBJ')])[0]
        # get the account for associate
        # TODO this should be defined in configuration 
        if self.company_id.property_cooperator_account:
            account = self.company_id.property_cooperator_account
        else:
            account = self.env['account.account'].search([('code','=','416000')])[0]
        
        # creating invoice and invoice lines
        invoice_vals = {'partner_id':partner.id, 
                      'journal_id':journal.id,'account_id':account.id,
                      'type': 'out_invoice', 'release_capital_request':True,
                      'subscription_request':self.id}
        if self.capital_release_request_date:
            invoice_vals['date_invoice'] = self.capital_release_request_date
        invoice = self.env['account.invoice'].create(invoice_vals)
        vals = self._prepare_invoice_line(self.share_product_id, partner, self.ordered_parts)
        vals['invoice_id'] = invoice.id
        line = self.env['account.invoice.line'].create(vals)

        # validate the capital release request
        invoice.signal_workflow('invoice_open')

        self.send_capital_release_request(invoice)
        
        return invoice 
    
    def get_partner_company_vals(self):
        # this should go to the many2many tag field
        #'title':'company',
        #self.env['res.partner.title'].search([('shortcut','=',self.company_type)])
        partner_vals = {'name':self.company_name, 'is_company': self.is_company, 
                        'company_register_number':self.company_register_number, 'customer':False,
                        'cooperator':True, 'street':self.address, 'zip':self.zip_code,
                        'city': self.city,'email':self.email, 'out_inv_comm_type':'bba','customer': share_product_id.customer,
                        'out_inv_comm_algorithm':'random', 'country_id': self.country_id.id, 'lang':self.lang}
        return partner_vals
    
    def get_partner_vals(self):
        partner_vals = {'name':self.name, 'first_name':self.firstname, 'last_name': self.lastname,
                        'customer':False, 'gender':self.gender,'cooperator':True, 'street':self.address,'zip':self.zip_code,
                        'city': self.city, 'phone': self.phone, 'email':self.email,
                        'national_register_number':self.no_registre, 'out_inv_comm_type':'bba',
                        'out_inv_comm_algorithm':'random', 'country_id': self.country_id.id,
                        'lang':self.lang, 'birthdate':self.birthdate, 'customer': share_product_id.customer}
        return partner_vals
    
    def create_coop_partner(self):
        partner_obj = self.env['res.partner']
        
        if self.is_company:
            partner_vals = self.get_partner_company_vals()
        else:    
            partner_vals = self.get_partner_vals()
        
        partner = partner_obj.create(partner_vals)
        if self.iban : 
            self.env['res.partner.bank'].create({'partner_id':partner.id,'acc_number':self.iban})
        return partner 
    
    def create_user(self, partner):
        user_obj = self.env['res.users']
        
        email = self.email
        if self.is_company:
            email = self.company_email
        
        user = user_obj.search([('login','=',email)])
        if not user:
            user_values = {'partner_id': partner.id,'login':email}
            user_id = user_obj.sudo()._signup_create_user(user_values)
            user = user_obj.browse(user_id)
            user.sudo().with_context({'create_user': True}).action_reset_password()
        
        return True

    @api.one
    def validate_subscription_request(self):
        partner_obj = self.env['res.partner']

        if self.partner_id:
            if not self.partner_id.cooperator:
                self.partner_id.cooperator = True
            partner = self.partner_id
        else:
            if self.already_cooperator:
                raise UserError(_('The checkbox already cooperator is checked please select a cooperator.'))
            elif self.is_company:
                partner = partner_obj.search([('company_register_number','=',self.company_register_number)])
            elif self.no_registre:
                partner = partner_obj.search([('national_register_number','=',self.no_registre)])
            else:
                partner = None
                
        if not partner:
            partner = self.create_coop_partner()
        else:
            partner = partner[0]
        
        if self.is_company and not partner.has_representative(): 
            contact = partner_obj.search([('national_register_number','=',self.no_registre)])
            if not contact:
                contact_vals = {'name':self.name, 'first_name':self.firstname, 'last_name': self.lastname,
                            'customer':False, 'is_company':False, 'cooperator':True, 
                            'street':self.address,'zip':self.zip_code,'gender':self.gender,
                            'city': self.city, 'phone': self.phone, 'email':self.email,
                            'national_register_number':self.no_registre, 'out_inv_comm_type':'bba',
                            'out_inv_comm_algorithm':'random', 'country_id': self.country_id.id,
                            'lang':self.lang, 'birthdate_date':self.birthdate, 'parent_id': partner.id,
                            'function':self.contact_person_function,'representative':True}
                contact = partner_obj.create(contact_vals)
            else:
                if len(contact) > 1:
                    raise UserError(_('There is two different persons with the same national register number. Please proceed to a merge before to continue'))
                if contact.parent_id and contact.parent_id.id != partner.id:
                    raise UserError(_('This contact person is already defined for another company. Please select another contact'))
                else:
                    contact.parent_id = partner.id
        
        invoice = self.create_invoice(partner)
        self.write({'partner_id':partner.id, 'state':'done'})
        
        self.create_user(partner)
        
        return invoice
                    
    @api.one
    def block_subscription_request(self):
        self.write({'state':'block'})
    
    @api.one    
    def unblock_subscription_request(self):
        self.write({'state':'draft'})
        
    @api.one    
    def cancel_subscription_request(self):
        self.write({'state':'cancelled'})
            
class share_line(models.Model):
    _name='share.line'
    
    @api.multi
    def _compute_total_line(self):
        res = {}
        for line in self:
            line.total_amount_line = line.share_unit_price * line.share_number
        return res
    
    share_product_id = fields.Many2one('product.product', string='Share type', required=True, readonly=True)
    share_number = fields.Integer(string='Number of Share', required=True, readonly=True)
    share_short_name = fields.Char(related='share_product_id.short_name', string='Share type name')
    share_unit_price = fields.Float(string='Share price', readonly=True)
    effective_date = fields.Date(string='Effective Date', readonly=True)
    partner_id = fields.Many2one('res.partner',string='Cooperator', required=True, ondelete='cascade', readonly=True)
    total_amount_line = fields.Float(compute='_compute_total_line', string='Total amount line')
    
class subscription_register(models.Model):    
    _name= 'subscription.register'
    
    @api.multi
    def _compute_total_line(self):
        res = {}
        for register_line in self:
            register_line.total_amount_line = register_line.share_unit_price * register_line.quantity
            
    name = fields.Char(string='Register Number Operation', required=True, readonly=True)
    register_number_operation = fields.Integer(string='Register Number Operation', required=True, readonly=True)
    partner_id = fields.Many2one('res.partner',string='Cooperator', required=True, readonly=True)
    partner_id_to = fields.Many2one('res.partner',string='Transfered to', readonly=True)
    date = fields.Date(string='Subscription Date', required= True, readonly=True)
    quantity = fields.Integer(string='Number of share', readonly=True)
    share_unit_price = fields.Float(string='Share price', readonly=True)
    total_amount_line = fields.Float(compute='_compute_total_line', string='Total amount line')
    share_product_id = fields.Many2one('product.product', string='Share type', required=True, readonly=True, domain=[('is_share','=',True)])
    share_short_name = fields.Char(related='share_product_id.short_name', string='Share type name', readonly=True)
    type = fields.Selection([('subscription','Subscription'),
                             ('transfer','Transfer'),
                             ('sell_back','Sell Back'),
                             ('convert','Conversion')],
                            string='Operation Type', readonly=True)
    company_id = fields.Many2one('res.company', string='Company', required=True, 
                                 change_default=True, readonly=True,
                                 default=lambda self: self.env['res.company']._company_default_get())
    user_id = fields.Many2one('res.users', string='Responsible', readonly=True, default=lambda self: self.env.user)
    
    _order = "register_number_operation asc"