import base64
import datetime
import hmac
import json
import pytz
import os
import time
import boto3
import requests

instanceIDs = []

def dig_instances():
    for region in ["us-west-2", "us-east-1", "ap-northeast-1", "ap-northeast-2", "ap-southeast-1", "eu-central-1"]:
        ec2Client = boto3.client('ec2', region_name=region)
        response = ec2Client.describe_instances()
        for reservation in response['Reservations']:
            for instance in reservation['Instances']:
                instanceType = instance['InstanceType']
                instanceId = instance['InstanceId']
                launchTime = instance['LaunchTime']
                instanceName = None
                component = ''
                tenant = ''
                if 'Tags' not in instance:
                    continue
                tags = instance['Tags']
                for tag in tags:
                    if tag['Key'] == 'Name':
                        instanceName = tag['Value']
                    if tag['Key'] == 'component':
                        component = tag['Value']
                    if tag['Key'] == 'tenant':
                        tenant = tag['Value']

                if instanceName is None:
                    continue

                if datetime.datetime.utcnow().replace(tzinfo=pytz.UTC) > launchTime + datetime.timedelta(hours=8):
                    if instanceType == 'c5.9xlarge' and 'shoot' in instanceName and component not in ("tikv", "cdc"):
                        instanceIDs.append(
                            {
                                "region": region,
                                "instanceId": instanceId,
                                'component': component,
                                'tenant': tenant
                            }
                        )

    return instanceIDs