# -*- coding: utf-8 -*-
from __future__ import absolute_import
from flask import request
from comm.db import db
from .comm.errno import E_SUCCESS, E_MISS_PARAM, E_WATCH_NOTEXIST, E_ILLEGAL_PARAMETER
from .comm.wrappers import Resource, api
import time
import datetime

era = datetime.datetime(1970, 1, 1)


def format_aggregate_result_date(data):
    num = len(data)
    if num == 4:
        return '%04d-%02d-%02d %02d' % (data['y'], data['m'], data['d'], data['h'])
    elif num == 3:
        return '%04d-%02d-%02d' % (data['y'], data['m'], data['d'])
    elif num == 2:
        return '%04d-%02d' % (data['y'], data['m'])
    else:
        return str(data['y'])


class SportDataView(Resource):
    def get(self, watch_id):
        sport_type = {1: '跑步', 2: '晨練', 3: '登山', 4: '游泳'}
        watch = db.watch.find({'$id': watch_id})
        result = {}
        cursor = None
        start = float(request.data['start_time'])
        end = float(request.data['end_time'])
        query = {'watch_id': watch_id, 'type': int(request.data['sport_type'])}

        if (end - start) < 86450:
            # 按日統(tǒng)計(jì)
            date_group_mode = {'y': {'$year': '$time'}, 'm': {'$month': '$time'}, 'd': {'$dayOfMonth': '$time'},
                               'h': {'$hour': '$time'}}
        elif (end - start) < 604850:
            # 按周統(tǒng)計(jì)
            date_group_mode = {'y': {'$year': '$time'}, 'm': {'$month': '$time'}, 'd': {'$dayOfMonth': '$time'}}
        elif (end - start) > 604850:
            # 大于七天則按月統(tǒng)計(jì)
            date_group_mode = {'y': {'$year': '$time'}, 'm': {'$month': '$time'}}
        else:
            return {'code': E_ILLEGAL_PARAMETER, 'msg': 'date mode is bad value'}
        s = time.localtime(start)
        e = time.localtime(end)
        if watch:
            try:
                # 用于查詢exerciselog表
                query_ex = {'watch_id': watch_id, 'type': int(request.data['sport_type'])}
                start = time.strftime('%Y-%m-%d', s)
                end = time.strftime('%Y-%m-%d', e)
                query_ex['date'] = {'$gte': start, '$lte': end}
                # 用于查詢step表
                query['maketime'] = {'$gte': float(request.data['start_time']), '$lte': float(request.data['end_time'])}
                if sport_type.has_key(int(request.data['sport_type'])):
                    if int(request.data['sport_type']) == 2 or int(request.data['sport_type']) == 4:
                        cursor = db.exercise_log.aggregate([
                            {'$match': query_ex},
                            {'$project': {
                                'time': {'$add': [{'$multiply': [1000, {'$add': ['$maketime', 28800]}]}, era]},
                                'n': '$long',
                                'c': '$calorie'
                            }},
                            {'$group': {
                                '_id': date_group_mode,
                                'n': {'$sum': '$n'},
                                'c': {'$sum': '$c'}
                            }}
                        ])
                        # {'_id', 'watch_id', 'date', 'time', 'type', 'long'}
                    elif int(request.data['sport_type']) == 1 or int(request.data['sport_type']) == 3:
                        # {'_id', 'watch_id', 'maketime', 'step', 'duration', 'calorie', 'type'}
                        print query
                        cursor = db.step.aggregate([
                            {'$match': query},
                            {'$project': {
                                'time': {'$add': [{'$multiply': [1000, {'$add': ['$maketime', 28800]}]}, era]},
                                'n': '$step',
                                'c': '$calorie'
                            }},
                            {'$group': {
                                '_id': date_group_mode,
                                'n': {'$sum': '$n'},
                                'c': {'$sum': '$c'}
                            }}
                        ])
                    duration = db.exercise_log.aggregate([
                            {'$match': query_ex},
                            {'$project': {
                                'id': '$watch_id',
                                'l': '$long',
                            }},
                            {'$group': {
                                '_id': '$id',
                                'l': {'$sum': '$l'},
                            }}
                    ])
                else:
                    raise ValueError
            except ValueError, e:
                return {
                    'code': E_MISS_PARAM,
                    'mag': e.message
                }
            result.setdefault('data', [])
            ca = 0
            du = 0
            for i in cursor:
                ca += i.get('c', 0)
                for d in duration:
                    du += d.get('l', 0)
                i['date'] = format_aggregate_result_date(i['_id'])
                i['step'] = i['n']
                del i['_id'], i['n']
                result['data'].append(i)
            result['duration'] = du
            result['calorie'] = ca
            result['num'] = db.exercise_log.count(query_ex)
            return {
                'code': E_SUCCESS,
                'request': result
            }
        else:
            return{
                'code': E_WATCH_NOTEXIST,
                'msg': 'There is no watch exist!'
            }

def __mount__():
    api.add_resource(SportDataView,'/watch/<objectid:watch_id>/all/view/')