import time
from datetime import datetime
from calendar import monthrange

from netforce.model import Model, fields, get_model
from netforce.access import get_active_user, set_active_user

from . import utils

class PatientMove(Model):
    _name="clinic.patient.move"

    _fields={
        'patient_id': fields.Many2One('clinic.patient','Patient',search=True),
        'date': fields.Date("Date", required=True,search=True),
        'location_from_id': fields.Many2One("clinic.department","Location From",search=True),
        'location_to_id': fields.Many2One("clinic.department","Location To",search=True),
        "state": fields.Selection([['normal','Normal'],['new','New'],['dispose','Dispose']], "State"),
        'note': fields.Text("Note",search=True),
    }
    
    _defaults={
        'date': lambda *a: time.strftime("%Y-%m-%d %H:%M:%S"),
        'state': 'normal',
    }

    def get_data(self, date, department_id, context={}):
        if not date:
            raise Exception("Missing date!")

        y,m,d=date.split("-")
        y=int(y)
        m=int(m)
        weekday, day_month=monthrange(y, m)

        cond1=[
            ['date','>=','%s-%s-01'%(y,str(m).zfill(2))],
            ['date','<=','%s-%s-%s'%(y,str(m).zfill(2),day_month)],
            ['location_to_id','=', department_id],
        ]
        cond=cond1+[['state','=','normal']]
        ids=self.search(cond)
        prev_month=len(ids)

        cond=cond1+[['state','=','new']]
        ids=self.search(cond)
        current_month=len(ids)
        current_items=[]
        for index, val in enumerate(self.read(ids)):
            val['no']=index+1
            current_items.append(val)
            

        cond=cond1+[['state','=','dispose']]
        ids=self.search(cond)
        dispose_month=len(ids)
        dispose_items=[]
        for index, val in enumerate(self.read(ids)):
            val['no']=index+1
            dispose_items.append(val)
        
        next_month=prev_month+current_month-dispose_month
         
        prev_m=m-1
        if prev_m <= 0:
            prev_m=1
        next_m=m+1
        if next_m > 12:
            next_m=1

        prev_month_thai=utils.MONTHS['th_TH'][prev_m]
        current_month_thai=utils.MONTHS['th_TH'][m]
        dispose_month_thai=utils.MONTHS['th_TH'][m]
        next_month_thai=utils.MONTHS['th_TH'][next_m]

        res={
            'prev_month': prev_month,
            'prev_month_thai': prev_month_thai,

            'current_month': current_month,
            'current_month_thai': current_month_thai,
            'current_items': current_items,
            
            'dispose_month': dispose_month,
            'dispose_month_thai': dispose_month_thai,
            'dispose_items': dispose_items,

            'next_month': next_month,
            'next_month_thai': next_month_thai,
        }
        return res

    def auto_get_data(self, date, department_id, context={}):
        user_id=get_active_user()
        set_active_user(1)
        datenow=time.strftime("%Y-%m-%d")

        if not date:
            raise Exception("Missing date!")
        if not department_id:
            raise Exception("Missing department!")
            
        y,m,d=date.split("-")
        weekday, day_month=monthrange(int(y), int(m))
        cond=[
            ['date','>=','%s-%s-01'%(y,m)],
            ['date','<=','%s-%s-%s'%(y,m,day_month)],
            ['location_to_id','=',department_id],
        ]
        res=self.search(cond)

        #XXX reset data
        if res and date > datenow:
            ids=self.search(cond)
            print("reset data...")
            print(ids)
            self.delete(ids)
            res=None
            

        # copy data from previous month
        if not res:
            y=int(y)
            m=int(m)-1
            if m<=0:
                m=1
                y-=1

            weekday, day_month=monthrange(int(y), int(m))
            cond=[
                ['date','>=','%s-%s-01'%(y,m)],
                ['date','<=','%s-%s-%s'%(y,m,day_month)],
                ['location_to_id','=',department_id],
            ]
            res=self.search_browse(cond)
            for obj in res:
                if obj.state=='dispose':
                    continue
                vals={
                    'location_from_id': obj.location_from_id.id,
                    'location_to_id': obj.location_to_id.id,
                    'patient_id': obj.patient_id.id,
                    'date': date,
                }
                self.create(vals)
        # copy from patient
        if not res:
            cond=[
                ['walkin','=','no'],
                ['dispose','=',False],
            ]
            locations={
                'LS-FL1': 1,
                'LS-FL2': 2,
                'LS-FL3': 3,
                'SS-FL3': 4,
                'SS-FL4': 5,
            }
            for obj in get_model("clinic.patient").search_browse(cond):
                if not obj.location:
                    continue
                locs=obj.location.split(",")
                vals={
                    'location_from_id': locations[locs[0]], #first
                    'location_to_id': locations[locs[-1]], #last
                    'patient_id': obj.id,
                    'note': obj.note,
                    'date': date,
                }
                self.create(vals)

        set_active_user(user_id)

PatientMove.register()