Conversational-AI-Chatbots/lambda.py at main · yuvarajrece/Conversational-AI-Chatbots · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
import json
import datetime
import time

def validate(slots):

    valid_cities = ['mumbai','delhi','banglore','hyderabad']

    if not slots['Location']:
        print("Inside Empty Location")
        return {
        'isValid': False,
        'violatedSlot': 'Location'
        }

    if slots['Location']['value']['originalValue'].lower() not in  valid_cities:

        print("Not Valide location")

        return {
        'isValid': False,
        'violatedSlot': 'Location',
        'message': 'We currently  support only {} as a valid destination.?'.format(", ".join(valid_cities))
        }

    if not slots['CheckinDate']:

        return {
        'isValid': False,
        'violatedSlot': 'CheckinDate',
    }

    if not slots['Nights']:
        return {
        'isValid': False,
        'violatedSlot': 'Nights'
    }

    if not slots['RoomType']:
        return {
        'isValid': False,
        'violatedSlot': 'RoomType'
    }

    return {'isValid': True}

def lambda_handler(event, context):

    # print(event)
    slots = event['sessionState']['intent']['slots']
    intent = event['sessionState']['intent']['name']
    print(event['invocationSource'])
    print(slots)
    print(intent)
    validation_result = validate(event['sessionState']['intent']['slots'])

    if event['invocationSource'] == 'DialogCodeHook':
        if not validation_result['isValid']:

            if 'message' in validation_result:

                response = {
                "sessionState": {
                    "dialogAction": {
                        'slotToElicit':validation_result['violatedSlot'],
                        "type": "ElicitSlot"
                    },
                    "intent": {
                        'name':intent,
                        'slots': slots

                        }
                },
                "messages": [
                    {
                        "contentType": "PlainText",
                        "content": validation_result['message']
                    }
                ]
               }
            else:
                response = {
                "sessionState": {
                    "dialogAction": {
                        'slotToElicit':validation_result['violatedSlot'],
                        "type": "ElicitSlot"
                    },
                    "intent": {
                        'name':intent,
                        'slots': slots

                        }
                }
               }

            return response

        else:
            response = {
            "sessionState": {
                "dialogAction": {
                    "type": "Delegate"
                },
                "intent": {
                    'name':intent,
                    'slots': slots

                    }

            }
        }
            return response

    if event['invocationSource'] == 'FulfillmentCodeHook':

        # Add order in Database

        response = {
        "sessionState": {
            "dialogAction": {
                "type": "Close"
            },
            "intent": {
                'name':intent,
                'slots': slots,
                'state':'Fulfilled'

                }

        },
        "messages": [
            {
                "contentType": "PlainText",
                "content": "Thanks, I have placed your reservation"
            }
        ]
    }

        return response