from datetime import datetime

from netforce.model import Model, fields

class PeriodLine(Model):
    _name="clinic.period.line"
    _string="Period Line"

    def _get_total(self,ids,context={}):
        res={}
        fmt='%Y-%m-%d'
        for obj in self.browse(ids):
            start=datetime.strptime(obj.date_start,fmt)
            stop=datetime.strptime(obj.date_stop,fmt)
            days=(stop-start).days
            res[obj.id]=days
        return res
    
    def _get_name(self,ids,context={}):
        res={}
        for obj in self.browse(ids):
            res[obj.id]={
                'name': '%s - %s'%(obj.date_start, obj.date_stop),
            }
        return res

    _fields={
        'name': fields.Char("Name",function="_get_name", function_multi=True, store=True),
        "period_id": fields.Many2One("clinic.period", "Period"),
        'date_start': fields.Date("Date Start"),
        'date_stop': fields.Date("Date End"),
        'day_total': fields.Integer("Duration (Day)",function="_get_total"),
        'state': fields.Selection([['open','Open'],['close','Close']],"State"),
    }
    
    _defaults={
        'state': 'open',
    }
    
    def delete(self,ids,context={}):
        for obj in self.browse(ids):
            if obj.state=='close':
                raise Exception("Can delete object which state is closed!")  
        super().delete(ids,context)

    def create(self,vals,**kw):
        id=super().create(vals,**kw)
        self.function_store([id])
        return id

    def write(self,ids,vals,**kw):
        super().write(ids,vals,**kw)
        self.function_store(ids)
    
    def do_close(self,ids,context={}):
        obj=self.browse(ids)[0]
        obj.write({
            'state': 'close',
        })
        return {
            'next': {
                'name': 'clinic_period_line',
                'mode': 'form',
                'active_id': obj.id,
            },
        }

    def do_open(self,ids,context={}):
        obj=self.browse(ids)[0]
        obj.write({
            'state': 'open',
        })
        return {
            'next': {
                'name': 'clinic_period_line',
                'mode': 'form',
                'active_id': obj.id,
            },
        }

PeriodLine.register()