# -*- coding: utf-8 -*-
import redis
import json
class Task(object):
    id = None
    name = None
    deadline = None
    def __init__(self,name,deadline,id = 0):
        self.name = name
        self.deadline = deadline
        self.id = id
        
    def serialize(self):
        return json.dumps({'id':self.id, 'name':self.name, 'deadline':self.deadline})
    
    def deserialize(self, serialized_task):
        task_dict =  json.loads(serialized_task)
        self.name = task_dict['name']
        self.deadline = task_dict['deadline']
        self.id = task_dict['id']
    def __str__(self):
        return "%s %s" %(self.deadline,self.name)
                    
    @classmethod
    def from_json_string(cls,st):
        t = cls(' ',' ')
        t.deserialize(st)
        return t
class TaskList(object):
    def __init__(self):
        self.tasks = []
        self.task=Task('','','')
        
    def __str__(self):
        return " ".join(["%s "%str(task) for task in self.tasks])
    def save(self,id,r):
        ids = [self.task.id for task in self.tasks]
        r.set('tl_%d' %int(self.id),json.dumps(ids))
        for task in self.tasks:
            r.set('task.id'%task.id,Task.serialize())
    def add(self,t):
        pass
    def edit(self, id):
       # t = tl.get(1)
        pass
    @classmethod
    def from_id(cls,id,r):
        self = cls()
        tr = r.get('tl_%d'%id)
        if tr is None:
            self.save(id,r)
            return self
        tr = json.loads(tr)
        for t in tr:
            s = r.get('task_%d'%t)
            s = Task.from_json_string(s)
            self.tasks.append(s)
        return self    
    
    @staticmethod
    def get_list_ids(r):
        #r.keys('tl*')
        pass