from django.apps import AppConfig
from django.http import HttpResponse
from django.shortcuts import render
from django.shortcuts import redirect

from django.core.files import File 
from kubernetes import client, config

#from django.template.loader import render_to_string
import time
import random
import mimetypes
import ruamel.yaml
import yaml
import urllib.request

def hello(request):
    return HttpResponse('<h1>Hello k8s!</h1>')

def echoHello():
    print("hello from k8s")
    return "returned from k8s"

def scale_up(request,namespace_name,deploy_name,replicas=1):
    config.load_kube_config(config_file='/kubeconfig/config')
    api = client.AppsV1Api()
    deployment = api.read_namespaced_deployment(name=deploy_name, namespace=namespace_name)
    deployment.spec.replicas = replicas
    resp = api.patch_namespaced_deployment(
        name=deploy_name, namespace=namespace_name, body=deployment);
    #return HttpResponse('<h1>Scaled up  !</h1>')
    return render(request, 'start.html', {'namespace':namespace_name,'deployment': deploy_name, 'url': 'https://namespace.com'})


def scale_down(request,namespace_name,deploy_name):
    config.load_kube_config(config_file='/kubeconfig/config')
    api = client.AppsV1Api()
    deployment = api.read_namespaced_deployment(name=deploy_name, namespace=namespace_name)
    deployment.spec.replicas = 0
    resp = api.patch_namespaced_deployment(
        name=deploy_name, namespace=namespace_name, body=deployment);
    #return HttpResponse('<h1>Scaled down  !</h1>')
    return render(request, 'shutdown.html',
                  {'namespace': namespace_name, 'deployment': deploy_name, 'url': 'https://namespace.com'})

def nodes(request):
    config.load_kube_config(config_file='/code/kubeconfig')
    v1 = client.CoreV1Api()
#    v1.list_node()
    pod_manifest = {
      'apiVersion': 'v1',
      'kind': 'Pod',
      'metadata': {
        'labels': {
          'bot': 'current-bot'
          },
          'name': 'podname',
          'namespace': 'echo-server'

      },
      'spec': {

        'containers': [{
          'image': 'gitea.tryton.geeraert.eu/pi-ux-ce/bitwarden_cli:1.0.1',
#          'pod-running-timeout': '5m0s',
          'name': 'testpython',
          'env': [
            {'name': 'env_variable', 'value': 'env_value'},
          ]
        }],
        'restartPolicy': 'Always',
#        'serviceAccountName': 'bots-service-account'
      }
    }

#        print(f'POD MANIFEST:\n{pod_manifest}')
    api_response = v1.create_namespaced_pod(body=pod_manifest,namespace='echo-server')
    return HttpResponse(api_response)

def backup_job(request):
    config.load_kube_config(config_file='/code/kubeconfig')
    v1 = client.CoreV1Api()
    #v1 = client.BatchV1Api()
#    v1.list_node()
    pod_manifest_job = {
      'apiVersion': 'batch/v1',
      'kind': 'Job',
      'metadata': {
          'name': 'bitwarden-backup-django',
          'namespace': 'bwbackup'

      },
      'spec': {
        'template': {
          'spec': {

            'containers': [{
              'image': 'gitea.tryton.geeraert.eu/pi-ux-ce/bitwarden_cli:1.0.1',
              'name': 'testpython',
              'command': ['/bin/sh -c /config/export_bitwarden.sh'],
              'env': [
                {'name': 'env_variable', 'value': 'env_value'},
              ],
              'volumeMounts': [
                {'name': 'scripts', 'configMap': [{'name':'bitwarden-export-scripts'},]},
              ]
            }],
            'restartPolicy': 'Always',
          }
        }
      }
    }

    api_response = v1.create_namespaced_job(body=pod_manifest_job)
    return HttpResponse(api_response)


#help with yaml import
#https://github.com/kubernetes-client/python/issues/589

def backup_job_yaml(request,sync_target):
    config.load_kube_config(config_file='/code/kubeconfig')
    v1 = client.BatchV1Api()

    yaml_location = {
      "synology" : "https://gitea.tryton.geeraert.eu/pi-ux-ce/Backup_kube/raw/branch/main/Infrequent_access/synology_pod.yaml",
      "openmediavault":"https://gitea.tryton.geeraert.eu/pi-ux-ce/Backup_kube/raw/branch/main/Infrequent_access/openmediavault_pod.yaml"
    }
    print(yaml_location[sync_target])
    url_to_select=yaml_location[sync_target]
    api_response = v1.create_namespaced_job(body=pod_manifest_job)

    return HttpResponse(api_response)