#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2017 Google
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
# ----------------------------------------------------------------------------
#
#     ***     AUTO GENERATED CODE    ***    AUTO GENERATED CODE     ***
#
# ----------------------------------------------------------------------------
#
#     This file is automatically generated by Magic Modules and manual
#     changes will be clobbered when the file is regenerated.
#
#     Please read more about how to change this file at
#     https://www.github.com/GoogleCloudPlatform/magic-modules
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from __future__ import absolute_import, division, print_function
__metaclass__ = type

################################################################################
# Documentation
################################################################################

ANSIBLE_METADATA = {'metadata_version': '1.1',
                    'status': ["preview"],
                    'supported_by': 'community'}

DOCUMENTATION = '''
---
module: gcp_compute_instance
description:
    - An instance is a virtual machine (VM) hosted on Google's infrastructure.
short_description: Creates a GCP Instance
version_added: 2.6
author: Google Inc. (@googlecloudplatform)
requirements:
    - python >= 2.6
    - requests >= 2.18.4
    - google-auth >= 1.3.0
options:
    state:
        description:
            - Whether the given object should exist in GCP
        choices: ['present', 'absent']
        default: 'present'
    can_ip_forward:
        description:
            - Allows this instance to send and receive packets with non-matching destination or
              source IPs. This is required if you plan to use this instance to forward routes.
        required: false
        type: bool
    disks:
        description:
            - An array of disks that are associated with the instances that are created from this
              template.
        required: false
        suboptions:
            auto_delete:
                description:
                    - Specifies whether the disk will be auto-deleted when the instance is deleted (but
                      not when the disk is detached from the instance).
                    - 'Tip: Disks should be set to autoDelete=true so that leftover disks are not left
                      behind on machine deletion.'
                required: false
                type: bool
            boot:
                description:
                    - Indicates that this is a boot disk. The virtual machine will use the first partition
                      of the disk for its root filesystem.
                required: false
                type: bool
            device_name:
                description:
                    - Specifies a unique device name of your choice that is reflected into the /dev/disk/by-id/google-*
                      tree of a Linux operating system running within the instance. This name can be used
                      to reference the device for mounting, resizing, and so on, from within the instance.
                required: false
            disk_encryption_key:
                description:
                    - Encrypts or decrypts a disk using a customer-supplied encryption key.
                required: false
                suboptions:
                    raw_key:
                        description:
                            - Specifies a 256-bit customer-supplied encryption key, encoded in RFC 4648 base64
                              to either encrypt or decrypt this resource.
                        required: false
                    rsa_encrypted_key:
                        description:
                            - Specifies an RFC 4648 base64 encoded, RSA-wrapped 2048-bit customer-supplied encryption
                              key to either encrypt or decrypt this resource.
                        required: false
                    sha256:
                        description:
                            - The RFC 4648 base64 encoded SHA-256 hash of the customer-supplied encryption key
                              that protects this resource.
                        required: false
            index:
                description:
                    - Assigns a zero-based index to this disk, where 0 is reserved for the boot disk.
                      For example, if you have many disks attached to an instance, each disk would have
                      a unique index number. If not specified, the server will choose an appropriate value.
                required: false
            initialize_params:
                description:
                    - Specifies the parameters for a new disk that will be created alongside the new instance.
                      Use initialization parameters to create boot disks or local SSDs attached to the
                      new instance.
                required: false
                suboptions:
                    disk_name:
                        description:
                            - Specifies the disk name. If not specified, the default is to use the name of the
                              instance.
                        required: false
                    disk_size_gb:
                        description:
                            - Specifies the size of the disk in base-2 GB.
                        required: false
                    disk_type:
                        description:
                            - A reference to DiskType resource.
                        required: false
                    source_image:
                        description:
                            - The source image to create this disk. When creating a new instance, one of initializeParams.sourceImage
                              or disks.source is required.  To create a disk with one of the public operating
                              system images, specify the image by its family name.
                        required: false
                    source_image_encryption_key:
                        description:
                            - The customer-supplied encryption key of the source image. Required if the source
                              image is protected by a customer-supplied encryption key.
                            - Instance templates do not store customer-supplied encryption keys, so you cannot
                              create disks for instances in a managed instance group if the source images are
                              encrypted with your own keys.
                        required: false
                        suboptions:
                            raw_key:
                                description:
                                    - Specifies a 256-bit customer-supplied encryption key, encoded in RFC 4648 base64
                                      to either encrypt or decrypt this resource.
                                required: false
                            sha256:
                                description:
                                    - The RFC 4648 base64 encoded SHA-256 hash of the customer-supplied encryption key
                                      that protects this resource.
                                required: false
            interface:
                description:
                    - Specifies the disk interface to use for attaching this disk, which is either SCSI
                      or NVME. The default is SCSI.
                    - Persistent disks must always use SCSI and the request will fail if you attempt to
                      attach a persistent disk in any other format than SCSI.
                required: false
                choices: ['SCSI', 'NVME']
            mode:
                description:
                    - The mode in which to attach this disk, either READ_WRITE or READ_ONLY. If not specified,
                      the default is to attach the disk in READ_WRITE mode.
                required: false
                choices: ['READ_WRITE', 'READ_ONLY']
            source:
                description:
                    - A reference to Disk resource.
                required: false
            type:
                description:
                    - Specifies the type of the disk, either SCRATCH or PERSISTENT. If not specified,
                      the default is PERSISTENT.
                required: false
                choices: ['SCRATCH', 'PERSISTENT']
    guest_accelerators:
        description:
            - List of the type and count of accelerator cards attached to the instance .
        required: false
        suboptions:
            accelerator_count:
                description:
                    - The number of the guest accelerator cards exposed to this instance.
                required: false
            accelerator_type:
                description:
                    - Full or partial URL of the accelerator type resource to expose to this instance.
                required: false
    label_fingerprint:
        description:
            - A fingerprint for this request, which is essentially a hash of the metadata's contents
              and used for optimistic locking. The fingerprint is initially generated by Compute
              Engine and changes after every request to modify or update metadata. You must always
              provide an up-to-date fingerprint hash in order to update or change metadata.
        required: false
    metadata:
        description:
            - The metadata key/value pairs to assign to instances that are created from this template.
              These pairs can consist of custom metadata or predefined keys.
        required: false
    machine_type:
        description:
            - A reference to MachineType resource.
        required: false
    min_cpu_platform:
        description:
            - Specifies a minimum CPU platform for the VM instance. Applicable values are the
              friendly names of CPU platforms .
        required: false
    name:
        description:
            - The name of the resource, provided by the client when initially creating the resource.
              The resource name must be 1-63 characters long, and comply with RFC1035. Specifically,
              the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?`
              which means the first character must be a lowercase letter, and all following characters
              must be a dash, lowercase letter, or digit, except the last character, which cannot
              be a dash.
        required: false
    network_interfaces:
        description:
            - An array of configurations for this interface. This specifies how this interface
              is configured to interact with other network services, such as connecting to the
              internet. Only one network interface is supported per instance.
        required: false
        suboptions:
            access_configs:
                description:
                    - An array of configurations for this interface. Currently, only one access config,
                      ONE_TO_ONE_NAT, is supported. If there are no accessConfigs specified, then this
                      instance will have no external internet access.
                required: false
                suboptions:
                    name:
                        description:
                            - The name of this access configuration. The default and recommended name is External
                              NAT but you can use any arbitrary string you would like. For example, My external
                              IP or Network Access.
                        required: true
                    nat_ip:
                        description:
                            - A reference to Address resource.
                        required: true
                    type:
                        description:
                            - The type of configuration. The default and only option is ONE_TO_ONE_NAT.
                        required: true
                        choices: ['ONE_TO_ONE_NAT']
            alias_ip_ranges:
                description:
                    - An array of alias IP ranges for this network interface. Can only be specified for
                      network interfaces on subnet-mode networks.
                required: false
                suboptions:
                    ip_cidr_range:
                        description:
                            - The IP CIDR range represented by this alias IP range.
                            - This IP CIDR range must belong to the specified subnetwork and cannot contain IP
                              addresses reserved by system or used by other network interfaces. This range may
                              be a single IP address (e.g. 10.2.3.4), a netmask (e.g. /24) or a CIDR format string
                              (e.g. 10.1.2.0/24).
                        required: false
                    subnetwork_range_name:
                        description:
                            - Optional subnetwork secondary range name specifying the secondary range from which
                              to allocate the IP CIDR range for this alias IP range. If left unspecified, the
                              primary range of the subnetwork will be used.
                        required: false
            name:
                description:
                    - The name of the network interface, generated by the server. For network devices,
                      these are eth0, eth1, etc .
                required: false
            network:
                description:
                    - A reference to Network resource.
                required: false
            network_ip:
                description:
                    - An IPv4 internal network address to assign to the instance for this network interface.
                      If not specified by the user, an unused internal IP is assigned by the system.
                required: false
            subnetwork:
                description:
                    - A reference to Subnetwork resource.
                required: false
    scheduling:
        description:
            - Sets the scheduling options for this instance.
        required: false
        suboptions:
            automatic_restart:
                description:
                    - Specifies whether the instance should be automatically restarted if it is terminated
                      by Compute Engine (not terminated by a user).
                    - You can only set the automatic restart option for standard instances. Preemptible
                      instances cannot be automatically restarted.
                required: false
                type: bool
            on_host_maintenance:
                description:
                    - Defines the maintenance behavior for this instance. For standard instances, the
                      default behavior is MIGRATE. For preemptible instances, the default and only possible
                      behavior is TERMINATE.
                    - For more information, see Setting Instance Scheduling Options.
                required: false
            preemptible:
                description:
                    - Defines whether the instance is preemptible. This can only be set during instance
                      creation, it cannot be set or changed after the instance has been created.
                required: false
                type: bool
    service_accounts:
        description:
            - A list of service accounts, with their specified scopes, authorized for this instance.
              Only one service account per VM instance is supported.
        required: false
        suboptions:
            email:
                description:
                    - Email address of the service account.
                required: false
                type: bool
            scopes:
                description:
                    - The list of scopes to be made available for this service account.
                required: false
    tags:
        description:
            - A list of tags to apply to this instance. Tags are used to identify valid sources
              or targets for network firewalls and are specified by the client during instance
              creation. The tags can be later modified by the setTags method. Each tag within
              the list must comply with RFC1035.
        required: false
        suboptions:
            fingerprint:
                description:
                    - Specifies a fingerprint for this request, which is essentially a hash of the metadata's
                      contents and used for optimistic locking.
                    - The fingerprint is initially generated by Compute Engine and changes after every
                      request to modify or update metadata. You must always provide an up-to-date fingerprint
                      hash in order to update or change metadata.
                required: false
            items:
                description:
                    - An array of tags. Each tag must be 1-63 characters long, and comply with RFC1035.
                required: false
    zone:
        description:
            - A reference to Zone resource.
        required: true
extends_documentation_fragment: gcp
'''

EXAMPLES = '''
- name: create a disk
  gcp_compute_disk:
      name: 'disk-instance'
      size_gb: 50
      source_image: 'projects/ubuntu-os-cloud/global/images/family/ubuntu-1604-lts'
      zone: us-central1-a
      project: "{{ gcp_project }}"
      auth_kind: "{{ gcp_cred_kind }}"
      service_account_file: "{{ gcp_cred_file }}"
      scopes:
        - https://www.googleapis.com/auth/compute
      state: present
  register: disk
- name: create a network
  gcp_compute_network:
      name: 'network-instance'
      project: "{{ gcp_project }}"
      auth_kind: "{{ gcp_cred_kind }}"
      service_account_file: "{{ gcp_cred_file }}"
      scopes:
        - https://www.googleapis.com/auth/compute
      state: present
  register: network
- name: create a address
  gcp_compute_address:
      name: 'address-instance'
      region: 'us-central1'
      project: "{{ gcp_project }}"
      auth_kind: "{{ gcp_cred_kind }}"
      service_account_file: "{{ gcp_cred_file }}"
      scopes:
        - https://www.googleapis.com/auth/compute
      state: present
  register: address
- name: create a instance
  gcp_compute_instance:
      name: testObject
      machine_type: n1-standard-1
      disks:
        - auto_delete: true
          boot: true
          source: "{{ disk }}"
      metadata:
        startup-script-url: 'gs:://graphite-playground/bootstrap.sh'
        cost-center: '12345'
      network_interfaces:
          - network: "{{ network }}"
            access_configs:
              - name: 'External NAT'
                nat_ip: "{{ address }}"
                type: 'ONE_TO_ONE_NAT'
      zone: 'us-central1-a'
      project: testProject
      auth_kind: service_account
      service_account_file: /tmp/auth.pem
      scopes:
        - https://www.googleapis.com/auth/compute
      state: present
'''

RETURN = '''
    can_ip_forward:
        description:
            - Allows this instance to send and receive packets with non-matching destination or
              source IPs. This is required if you plan to use this instance to forward routes.
        returned: success
        type: bool
    cpu_platform:
        description:
            - The CPU platform used by this instance.
        returned: success
        type: str
    creation_timestamp:
        description:
            - Creation timestamp in RFC3339 text format.
        returned: success
        type: str
    disks:
        description:
            - An array of disks that are associated with the instances that are created from this
              template.
        returned: success
        type: complex
        contains:
            auto_delete:
                description:
                    - Specifies whether the disk will be auto-deleted when the instance is deleted (but
                      not when the disk is detached from the instance).
                    - 'Tip: Disks should be set to autoDelete=true so that leftover disks are not left
                      behind on machine deletion.'
                returned: success
                type: bool
            boot:
                description:
                    - Indicates that this is a boot disk. The virtual machine will use the first partition
                      of the disk for its root filesystem.
                returned: success
                type: bool
            device_name:
                description:
                    - Specifies a unique device name of your choice that is reflected into the /dev/disk/by-id/google-*
                      tree of a Linux operating system running within the instance. This name can be used
                      to reference the device for mounting, resizing, and so on, from within the instance.
                returned: success
                type: str
            disk_encryption_key:
                description:
                    - Encrypts or decrypts a disk using a customer-supplied encryption key.
                returned: success
                type: complex
                contains:
                    raw_key:
                        description:
                            - Specifies a 256-bit customer-supplied encryption key, encoded in RFC 4648 base64
                              to either encrypt or decrypt this resource.
                        returned: success
                        type: str
                    rsa_encrypted_key:
                        description:
                            - Specifies an RFC 4648 base64 encoded, RSA-wrapped 2048-bit customer-supplied encryption
                              key to either encrypt or decrypt this resource.
                        returned: success
                        type: str
                    sha256:
                        description:
                            - The RFC 4648 base64 encoded SHA-256 hash of the customer-supplied encryption key
                              that protects this resource.
                        returned: success
                        type: str
            index:
                description:
                    - Assigns a zero-based index to this disk, where 0 is reserved for the boot disk.
                      For example, if you have many disks attached to an instance, each disk would have
                      a unique index number. If not specified, the server will choose an appropriate value.
                returned: success
                type: int
            initialize_params:
                description:
                    - Specifies the parameters for a new disk that will be created alongside the new instance.
                      Use initialization parameters to create boot disks or local SSDs attached to the
                      new instance.
                returned: success
                type: complex
                contains:
                    disk_name:
                        description:
                            - Specifies the disk name. If not specified, the default is to use the name of the
                              instance.
                        returned: success
                        type: str
                    disk_size_gb:
                        description:
                            - Specifies the size of the disk in base-2 GB.
                        returned: success
                        type: int
                    disk_type:
                        description:
                            - A reference to DiskType resource.
                        returned: success
                        type: str
                    source_image:
                        description:
                            - The source image to create this disk. When creating a new instance, one of initializeParams.sourceImage
                              or disks.source is required.  To create a disk with one of the public operating
                              system images, specify the image by its family name.
                        returned: success
                        type: str
                    source_image_encryption_key:
                        description:
                            - The customer-supplied encryption key of the source image. Required if the source
                              image is protected by a customer-supplied encryption key.
                            - Instance templates do not store customer-supplied encryption keys, so you cannot
                              create disks for instances in a managed instance group if the source images are
                              encrypted with your own keys.
                        returned: success
                        type: complex
                        contains:
                            raw_key:
                                description:
                                    - Specifies a 256-bit customer-supplied encryption key, encoded in RFC 4648 base64
                                      to either encrypt or decrypt this resource.
                                returned: success
                                type: str
                            sha256:
                                description:
                                    - The RFC 4648 base64 encoded SHA-256 hash of the customer-supplied encryption key
                                      that protects this resource.
                                returned: success
                                type: str
            interface:
                description:
                    - Specifies the disk interface to use for attaching this disk, which is either SCSI
                      or NVME. The default is SCSI.
                    - Persistent disks must always use SCSI and the request will fail if you attempt to
                      attach a persistent disk in any other format than SCSI.
                returned: success
                type: str
            mode:
                description:
                    - The mode in which to attach this disk, either READ_WRITE or READ_ONLY. If not specified,
                      the default is to attach the disk in READ_WRITE mode.
                returned: success
                type: str
            source:
                description:
                    - A reference to Disk resource.
                returned: success
                type: dict
            type:
                description:
                    - Specifies the type of the disk, either SCRATCH or PERSISTENT. If not specified,
                      the default is PERSISTENT.
                returned: success
                type: str
    guest_accelerators:
        description:
            - List of the type and count of accelerator cards attached to the instance .
        returned: success
        type: complex
        contains:
            accelerator_count:
                description:
                    - The number of the guest accelerator cards exposed to this instance.
                returned: success
                type: int
            accelerator_type:
                description:
                    - Full or partial URL of the accelerator type resource to expose to this instance.
                returned: success
                type: str
    id:
        description:
            - The unique identifier for the resource. This identifier is defined by the server.
        returned: success
        type: int
    label_fingerprint:
        description:
            - A fingerprint for this request, which is essentially a hash of the metadata's contents
              and used for optimistic locking. The fingerprint is initially generated by Compute
              Engine and changes after every request to modify or update metadata. You must always
              provide an up-to-date fingerprint hash in order to update or change metadata.
        returned: success
        type: str
    metadata:
        description:
            - The metadata key/value pairs to assign to instances that are created from this template.
              These pairs can consist of custom metadata or predefined keys.
        returned: success
        type: dict
    machine_type:
        description:
            - A reference to MachineType resource.
        returned: success
        type: str
    min_cpu_platform:
        description:
            - Specifies a minimum CPU platform for the VM instance. Applicable values are the
              friendly names of CPU platforms .
        returned: success
        type: str
    name:
        description:
            - The name of the resource, provided by the client when initially creating the resource.
              The resource name must be 1-63 characters long, and comply with RFC1035. Specifically,
              the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?`
              which means the first character must be a lowercase letter, and all following characters
              must be a dash, lowercase letter, or digit, except the last character, which cannot
              be a dash.
        returned: success
        type: str
    network_interfaces:
        description:
            - An array of configurations for this interface. This specifies how this interface
              is configured to interact with other network services, such as connecting to the
              internet. Only one network interface is supported per instance.
        returned: success
        type: complex
        contains:
            access_configs:
                description:
                    - An array of configurations for this interface. Currently, only one access config,
                      ONE_TO_ONE_NAT, is supported. If there are no accessConfigs specified, then this
                      instance will have no external internet access.
                returned: success
                type: complex
                contains:
                    name:
                        description:
                            - The name of this access configuration. The default and recommended name is External
                              NAT but you can use any arbitrary string you would like. For example, My external
                              IP or Network Access.
                        returned: success
                        type: str
                    nat_ip:
                        description:
                            - A reference to Address resource.
                        returned: success
                        type: dict
                    type:
                        description:
                            - The type of configuration. The default and only option is ONE_TO_ONE_NAT.
                        returned: success
                        type: str
            alias_ip_ranges:
                description:
                    - An array of alias IP ranges for this network interface. Can only be specified for
                      network interfaces on subnet-mode networks.
                returned: success
                type: complex
                contains:
                    ip_cidr_range:
                        description:
                            - The IP CIDR range represented by this alias IP range.
                            - This IP CIDR range must belong to the specified subnetwork and cannot contain IP
                              addresses reserved by system or used by other network interfaces. This range may
                              be a single IP address (e.g. 10.2.3.4), a netmask (e.g. /24) or a CIDR format string
                              (e.g. 10.1.2.0/24).
                        returned: success
                        type: str
                    subnetwork_range_name:
                        description:
                            - Optional subnetwork secondary range name specifying the secondary range from which
                              to allocate the IP CIDR range for this alias IP range. If left unspecified, the
                              primary range of the subnetwork will be used.
                        returned: success
                        type: str
            name:
                description:
                    - The name of the network interface, generated by the server. For network devices,
                      these are eth0, eth1, etc .
                returned: success
                type: str
            network:
                description:
                    - A reference to Network resource.
                returned: success
                type: dict
            network_ip:
                description:
                    - An IPv4 internal network address to assign to the instance for this network interface.
                      If not specified by the user, an unused internal IP is assigned by the system.
                returned: success
                type: str
            subnetwork:
                description:
                    - A reference to Subnetwork resource.
                returned: success
                type: dict
    scheduling:
        description:
            - Sets the scheduling options for this instance.
        returned: success
        type: complex
        contains:
            automatic_restart:
                description:
                    - Specifies whether the instance should be automatically restarted if it is terminated
                      by Compute Engine (not terminated by a user).
                    - You can only set the automatic restart option for standard instances. Preemptible
                      instances cannot be automatically restarted.
                returned: success
                type: bool
            on_host_maintenance:
                description:
                    - Defines the maintenance behavior for this instance. For standard instances, the
                      default behavior is MIGRATE. For preemptible instances, the default and only possible
                      behavior is TERMINATE.
                    - For more information, see Setting Instance Scheduling Options.
                returned: success
                type: str
            preemptible:
                description:
                    - Defines whether the instance is preemptible. This can only be set during instance
                      creation, it cannot be set or changed after the instance has been created.
                returned: success
                type: bool
    service_accounts:
        description:
            - A list of service accounts, with their specified scopes, authorized for this instance.
              Only one service account per VM instance is supported.
        returned: success
        type: complex
        contains:
            email:
                description:
                    - Email address of the service account.
                returned: success
                type: bool
            scopes:
                description:
                    - The list of scopes to be made available for this service account.
                returned: success
                type: list
    status:
        description:
            - 'The status of the instance. One of the following values: PROVISIONING, STAGING,
              RUNNING, STOPPING, SUSPENDING, SUSPENDED, and TERMINATED.'
        returned: success
        type: str
    status_message:
        description:
            - An optional, human-readable explanation of the status.
        returned: success
        type: str
    tags:
        description:
            - A list of tags to apply to this instance. Tags are used to identify valid sources
              or targets for network firewalls and are specified by the client during instance
              creation. The tags can be later modified by the setTags method. Each tag within
              the list must comply with RFC1035.
        returned: success
        type: complex
        contains:
            fingerprint:
                description:
                    - Specifies a fingerprint for this request, which is essentially a hash of the metadata's
                      contents and used for optimistic locking.
                    - The fingerprint is initially generated by Compute Engine and changes after every
                      request to modify or update metadata. You must always provide an up-to-date fingerprint
                      hash in order to update or change metadata.
                returned: success
                type: str
            items:
                description:
                    - An array of tags. Each tag must be 1-63 characters long, and comply with RFC1035.
                returned: success
                type: list
    zone:
        description:
            - A reference to Zone resource.
        returned: success
        type: str
'''

################################################################################
# Imports
################################################################################

from ansible.module_utils.gcp_utils import navigate_hash, GcpSession, GcpModule, GcpRequest, remove_nones_from_dict, replace_resource_dict
import json
import re
import time

################################################################################
# Main
################################################################################


def main():
    """Main function"""

    module = GcpModule(
        argument_spec=dict(
            state=dict(default='present', choices=['present', 'absent'], type='str'),
            can_ip_forward=dict(type='bool'),
            disks=dict(type='list', elements='dict', options=dict(
                auto_delete=dict(type='bool'),
                boot=dict(type='bool'),
                device_name=dict(type='str'),
                disk_encryption_key=dict(type='dict', options=dict(
                    raw_key=dict(type='str'),
                    rsa_encrypted_key=dict(type='str'),
                    sha256=dict(type='str')
                )),
                index=dict(type='int'),
                initialize_params=dict(type='dict', options=dict(
                    disk_name=dict(type='str'),
                    disk_size_gb=dict(type='int'),
                    disk_type=dict(type='str'),
                    source_image=dict(type='str'),
                    source_image_encryption_key=dict(type='dict', options=dict(
                        raw_key=dict(type='str'),
                        sha256=dict(type='str')
                    ))
                )),
                interface=dict(type='str', choices=['SCSI', 'NVME']),
                mode=dict(type='str', choices=['READ_WRITE', 'READ_ONLY']),
                source=dict(type='dict'),
                type=dict(type='str', choices=['SCRATCH', 'PERSISTENT'])
            )),
            guest_accelerators=dict(type='list', elements='dict', options=dict(
                accelerator_count=dict(type='int'),
                accelerator_type=dict(type='str')
            )),
            label_fingerprint=dict(type='str'),
            metadata=dict(type='dict'),
            machine_type=dict(type='str'),
            min_cpu_platform=dict(type='str'),
            name=dict(type='str'),
            network_interfaces=dict(type='list', elements='dict', options=dict(
                access_configs=dict(type='list', elements='dict', options=dict(
                    name=dict(required=True, type='str'),
                    nat_ip=dict(required=True, type='dict'),
                    type=dict(required=True, type='str', choices=['ONE_TO_ONE_NAT'])
                )),
                alias_ip_ranges=dict(type='list', elements='dict', options=dict(
                    ip_cidr_range=dict(type='str'),
                    subnetwork_range_name=dict(type='str')
                )),
                name=dict(type='str'),
                network=dict(type='dict'),
                network_ip=dict(type='str'),
                subnetwork=dict(type='dict')
            )),
            scheduling=dict(type='dict', options=dict(
                automatic_restart=dict(type='bool'),
                on_host_maintenance=dict(type='str'),
                preemptible=dict(type='bool')
            )),
            service_accounts=dict(type='list', elements='dict', options=dict(
                email=dict(type='bool'),
                scopes=dict(type='list', elements='str')
            )),
            tags=dict(type='dict', options=dict(
                fingerprint=dict(type='str'),
                items=dict(type='list', elements='str')
            )),
            zone=dict(required=True, type='str')
        )
    )

    state = module.params['state']
    kind = 'compute#instance'

    fetch = fetch_resource(module, self_link(module), kind)
    changed = False

    if fetch:
        if state == 'present':
            if is_different(module, fetch):
                fetch = update(module, self_link(module), kind, fetch)
                changed = True
        else:
            delete(module, self_link(module), kind, fetch)
            fetch = {}
            changed = True
    else:
        if state == 'present':
            fetch = create(module, collection(module), kind)
            changed = True
        else:
            fetch = {}

    fetch.update({'changed': changed})

    module.exit_json(**fetch)


def create(module, link, kind):
    auth = GcpSession(module, 'compute')
    return wait_for_operation(module, auth.post(link, resource_to_request(module)))


def update(module, link, kind, fetch):
    auth = GcpSession(module, 'compute')
    return wait_for_operation(module, auth.put(link, resource_to_request(module)))


def delete(module, link, kind, fetch):
    auth = GcpSession(module, 'compute')
    return wait_for_operation(module, auth.delete(link))


def resource_to_request(module):
    request = {
        u'kind': 'compute#instance',
        u'canIpForward': module.params.get('can_ip_forward'),
        u'disks': InstanceDisksArray(module.params.get('disks', []), module).to_request(),
        u'guestAccelerators': InstancGuestAccelerArray(module.params.get('guest_accelerators', []), module).to_request(),
        u'labelFingerprint': module.params.get('label_fingerprint'),
        u'metadata': module.params.get('metadata'),
        u'machineType': machine_type_selflink(module.params.get('machine_type'), module.params),
        u'minCpuPlatform': module.params.get('min_cpu_platform'),
        u'name': module.params.get('name'),
        u'networkInterfaces': InstancNetworkInterfaArray(module.params.get('network_interfaces', []), module).to_request(),
        u'scheduling': InstanceScheduling(module.params.get('scheduling', {}), module).to_request(),
        u'serviceAccounts': InstancServiceAccountArray(module.params.get('service_accounts', []), module).to_request(),
        u'tags': InstanceTags(module.params.get('tags', {}), module).to_request()
    }
    request = encode_request(request, module)
    return_vals = {}
    for k, v in request.items():
        if v:
            return_vals[k] = v

    return return_vals


def fetch_resource(module, link, kind):
    auth = GcpSession(module, 'compute')
    return return_if_object(module, auth.get(link), kind)


def self_link(module):
    return "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/instances/{name}".format(**module.params)


def collection(module):
    return "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/instances".format(**module.params)


def return_if_object(module, response, kind):
    # If not found, return nothing.
    if response.status_code == 404:
        return None

    # If no content, return nothing.
    if response.status_code == 204:
        return None

    try:
        module.raise_for_status(response)
        result = response.json()
    except getattr(json.decoder, 'JSONDecodeError', ValueError) as inst:
        module.fail_json(msg="Invalid JSON response with error: %s" % inst)

    result = decode_response(result, module)

    if navigate_hash(result, ['error', 'errors']):
        module.fail_json(msg=navigate_hash(result, ['error', 'errors']))
    if result['kind'] != kind:
        module.fail_json(msg="Incorrect result: {kind}".format(**result))

    return result


def is_different(module, response):
    request = resource_to_request(module)
    response = response_to_hash(module, response)
    request = decode_response(request, module)

    # Remove all output-only from response.
    response_vals = {}
    for k, v in response.items():
        if k in request:
            response_vals[k] = v

    request_vals = {}
    for k, v in request.items():
        if k in response:
            request_vals[k] = v

    return GcpRequest(request_vals) != GcpRequest(response_vals)


# Remove unnecessary properties from the response.
# This is for doing comparisons with Ansible's current parameters.
def response_to_hash(module, response):
    return {
        u'canIpForward': response.get(u'canIpForward'),
        u'cpuPlatform': response.get(u'cpuPlatform'),
        u'creationTimestamp': response.get(u'creationTimestamp'),
        u'disks': InstanceDisksArray(module.params.get('disks', []), module).to_request(),
        u'guestAccelerators': InstancGuestAccelerArray(response.get(u'guestAccelerators', []), module).from_response(),
        u'id': response.get(u'id'),
        u'labelFingerprint': response.get(u'labelFingerprint'),
        u'metadata': response.get(u'metadata'),
        u'machineType': response.get(u'machineType'),
        u'minCpuPlatform': response.get(u'minCpuPlatform'),
        u'name': response.get(u'name'),
        u'networkInterfaces': InstancNetworkInterfaArray(response.get(u'networkInterfaces', []), module).from_response(),
        u'scheduling': InstanceScheduling(response.get(u'scheduling', {}), module).from_response(),
        u'serviceAccounts': InstancServiceAccountArray(response.get(u'serviceAccounts', []), module).from_response(),
        u'status': response.get(u'status'),
        u'statusMessage': response.get(u'statusMessage'),
        u'tags': InstanceTags(response.get(u'tags', {}), module).from_response()
    }


def disk_type_selflink(name, params):
    if name is None:
        return
    url = r"https://www.googleapis.com/compute/v1/projects/.*/zones/{zone}/diskTypes/[a-z1-9\-]*"
    if not re.match(url, name):
        name = "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/diskTypes/%s".format(**params) % name
    return name


def machine_type_selflink(name, params):
    if name is None:
        return
    url = r"https://www.googleapis.com/compute/v1/projects/.*/zones/{zone}/machineTypes/[a-z1-9\-]*"
    if not re.match(url, name):
        name = "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/machineTypes/%s".format(**params) % name
    return name


def async_op_url(module, extra_data=None):
    if extra_data is None:
        extra_data = {}
    url = "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/operations/{op_id}"
    combined = extra_data.copy()
    combined.update(module.params)
    return url.format(**combined)


def wait_for_operation(module, response):
    op_result = return_if_object(module, response, 'compute#operation')
    if op_result is None:
        return None
    status = navigate_hash(op_result, ['status'])
    wait_done = wait_for_completion(status, op_result, module)
    return fetch_resource(module, navigate_hash(wait_done, ['targetLink']), 'compute#instance')


def wait_for_completion(status, op_result, module):
    op_id = navigate_hash(op_result, ['name'])
    op_uri = async_op_url(module, {'op_id': op_id})
    while status != 'DONE':
        raise_if_errors(op_result, ['error', 'errors'], 'message')
        time.sleep(1.0)
        if status not in ['PENDING', 'RUNNING', 'DONE']:
            module.fail_json(msg="Invalid result %s" % status)
        op_result = fetch_resource(module, op_uri, 'compute#operation')
        status = navigate_hash(op_result, ['status'])
    return op_result


def raise_if_errors(response, err_path, module):
    errors = navigate_hash(response, err_path)
    if errors is not None:
        module.fail_json(msg=errors)


def encode_request(request, module):
    if 'metadata' in request:
        request['metadata'] = metadata_encoder(request['metadata'])
    return request


def decode_response(response, module):
    if 'metadata' in response:
        response['metadata'] = metadata_decoder(response['metadata'])
    return response


# TODO(alexstephen): Implement updating metadata on exsiting resources.

# Expose instance 'metadata' as a simple name/value pair hash. However the API
# defines metadata as a NestedObject with the following layout:
#
# metadata {
#   fingerprint: 'hash-of-last-metadata'
#   items: [
#     {
#       key: 'metadata1-key'
#       value: 'metadata1-value'
#     },
#     ...
#   ]
# }
#
def metadata_encoder(metadata):
    metadata_new = []
    for key in metadata:
        value = metadata[key]
        metadata_new.append({
            "key": key,
            "value": value
        })
    return {
        'items': metadata_new
    }


# Map metadata.items[]{key:,value:} => metadata[key]=value
def metadata_decoder(metadata):
    items = {}
    if 'items' in metadata:
        metadata_items = metadata['items']
        for item in metadata_items:
            items[item['key']] = item['value']
    return items


class InstanceDisksArray(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = []

    def to_request(self):
        items = []
        for item in self.request:
            items.append(self._request_for_item(item))
        return items

    def from_response(self):
        items = []
        for item in self.request:
            items.append(self._response_from_item(item))
        return items

    def _request_for_item(self, item):
        return remove_nones_from_dict({
            u'autoDelete': item.get('auto_delete'),
            u'boot': item.get('boot'),
            u'deviceName': item.get('device_name'),
            u'diskEncryptionKey': InstaDiskEncryKey(item.get('disk_encryption_key', {}), self.module).to_request(),
            u'index': item.get('index'),
            u'initializeParams': InstancInitialParams(item.get('initialize_params', {}), self.module).to_request(),
            u'interface': item.get('interface'),
            u'mode': item.get('mode'),
            u'source': replace_resource_dict(item.get(u'source', {}), 'selfLink'),
            u'type': item.get('type')
        })

    def _response_from_item(self, item):
        return remove_nones_from_dict({
            u'autoDelete': item.get(u'autoDelete'),
            u'boot': item.get(u'boot'),
            u'deviceName': item.get(u'deviceName'),
            u'diskEncryptionKey': InstaDiskEncryKey(item.get(u'diskEncryptionKey', {}), self.module).from_response(),
            u'index': item.get(u'index'),
            u'initializeParams': InstancInitialParams(self.module.params.get('initialize_params', {}), self.module).to_request(),
            u'interface': item.get(u'interface'),
            u'mode': item.get(u'mode'),
            u'source': item.get(u'source'),
            u'type': item.get(u'type')
        })


class InstaDiskEncryKey(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = {}

    def to_request(self):
        return remove_nones_from_dict({
            u'rawKey': self.request.get('raw_key'),
            u'rsaEncryptedKey': self.request.get('rsa_encrypted_key'),
            u'sha256': self.request.get('sha256')
        })

    def from_response(self):
        return remove_nones_from_dict({
            u'rawKey': self.request.get(u'rawKey'),
            u'rsaEncryptedKey': self.request.get(u'rsaEncryptedKey'),
            u'sha256': self.request.get(u'sha256')
        })


class InstancInitialParams(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = {}

    def to_request(self):
        return remove_nones_from_dict({
            u'diskName': self.request.get('disk_name'),
            u'diskSizeGb': self.request.get('disk_size_gb'),
            u'diskType': disk_type_selflink(self.request.get('disk_type'), self.module.params),
            u'sourceImage': self.request.get('source_image'),
            u'sourceImageEncryptionKey': InstSourImagEncrKey(self.request.get('source_image_encryption_key', {}), self.module).to_request()
        })

    def from_response(self):
        return remove_nones_from_dict({
            u'diskName': self.request.get(u'diskName'),
            u'diskSizeGb': self.request.get(u'diskSizeGb'),
            u'diskType': self.request.get(u'diskType'),
            u'sourceImage': self.request.get(u'sourceImage'),
            u'sourceImageEncryptionKey': InstSourImagEncrKey(self.request.get(u'sourceImageEncryptionKey', {}), self.module).from_response()
        })


class InstSourImagEncrKey(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = {}

    def to_request(self):
        return remove_nones_from_dict({
            u'rawKey': self.request.get('raw_key'),
            u'sha256': self.request.get('sha256')
        })

    def from_response(self):
        return remove_nones_from_dict({
            u'rawKey': self.request.get(u'rawKey'),
            u'sha256': self.request.get(u'sha256')
        })


class InstancGuestAccelerArray(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = []

    def to_request(self):
        items = []
        for item in self.request:
            items.append(self._request_for_item(item))
        return items

    def from_response(self):
        items = []
        for item in self.request:
            items.append(self._response_from_item(item))
        return items

    def _request_for_item(self, item):
        return remove_nones_from_dict({
            u'acceleratorCount': item.get('accelerator_count'),
            u'acceleratorType': item.get('accelerator_type')
        })

    def _response_from_item(self, item):
        return remove_nones_from_dict({
            u'acceleratorCount': item.get(u'acceleratorCount'),
            u'acceleratorType': item.get(u'acceleratorType')
        })


class InstancNetworkInterfaArray(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = []

    def to_request(self):
        items = []
        for item in self.request:
            items.append(self._request_for_item(item))
        return items

    def from_response(self):
        items = []
        for item in self.request:
            items.append(self._response_from_item(item))
        return items

    def _request_for_item(self, item):
        return remove_nones_from_dict({
            u'accessConfigs': InstancAccessConfigsArray(item.get('access_configs', []), self.module).to_request(),
            u'aliasIpRanges': InstaAliasIpRangeArray(item.get('alias_ip_ranges', []), self.module).to_request(),
            u'name': item.get('name'),
            u'network': replace_resource_dict(item.get(u'network', {}), 'selfLink'),
            u'networkIP': item.get('network_ip'),
            u'subnetwork': replace_resource_dict(item.get(u'subnetwork', {}), 'selfLink')
        })

    def _response_from_item(self, item):
        return remove_nones_from_dict({
            u'accessConfigs': InstancAccessConfigsArray(item.get(u'accessConfigs', []), self.module).from_response(),
            u'aliasIpRanges': InstaAliasIpRangeArray(item.get(u'aliasIpRanges', []), self.module).from_response(),
            u'name': item.get(u'name'),
            u'network': item.get(u'network'),
            u'networkIP': item.get(u'networkIP'),
            u'subnetwork': item.get(u'subnetwork')
        })


class InstancAccessConfigsArray(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = []

    def to_request(self):
        items = []
        for item in self.request:
            items.append(self._request_for_item(item))
        return items

    def from_response(self):
        items = []
        for item in self.request:
            items.append(self._response_from_item(item))
        return items

    def _request_for_item(self, item):
        return remove_nones_from_dict({
            u'name': item.get('name'),
            u'natIP': replace_resource_dict(item.get(u'nat_ip', {}), 'address'),
            u'type': item.get('type')
        })

    def _response_from_item(self, item):
        return remove_nones_from_dict({
            u'name': item.get(u'name'),
            u'natIP': item.get(u'natIP'),
            u'type': item.get(u'type')
        })


class InstaAliasIpRangeArray(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = []

    def to_request(self):
        items = []
        for item in self.request:
            items.append(self._request_for_item(item))
        return items

    def from_response(self):
        items = []
        for item in self.request:
            items.append(self._response_from_item(item))
        return items

    def _request_for_item(self, item):
        return remove_nones_from_dict({
            u'ipCidrRange': item.get('ip_cidr_range'),
            u'subnetworkRangeName': item.get('subnetwork_range_name')
        })

    def _response_from_item(self, item):
        return remove_nones_from_dict({
            u'ipCidrRange': item.get(u'ipCidrRange'),
            u'subnetworkRangeName': item.get(u'subnetworkRangeName')
        })


class InstanceScheduling(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = {}

    def to_request(self):
        return remove_nones_from_dict({
            u'automaticRestart': self.request.get('automatic_restart'),
            u'onHostMaintenance': self.request.get('on_host_maintenance'),
            u'preemptible': self.request.get('preemptible')
        })

    def from_response(self):
        return remove_nones_from_dict({
            u'automaticRestart': self.request.get(u'automaticRestart'),
            u'onHostMaintenance': self.request.get(u'onHostMaintenance'),
            u'preemptible': self.request.get(u'preemptible')
        })


class InstancServiceAccountArray(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = []

    def to_request(self):
        items = []
        for item in self.request:
            items.append(self._request_for_item(item))
        return items

    def from_response(self):
        items = []
        for item in self.request:
            items.append(self._response_from_item(item))
        return items

    def _request_for_item(self, item):
        return remove_nones_from_dict({
            u'email': item.get('email'),
            u'scopes': item.get('scopes')
        })

    def _response_from_item(self, item):
        return remove_nones_from_dict({
            u'email': item.get(u'email'),
            u'scopes': item.get(u'scopes')
        })


class InstanceTags(object):
    def __init__(self, request, module):
        self.module = module
        if request:
            self.request = request
        else:
            self.request = {}

    def to_request(self):
        return remove_nones_from_dict({
            u'fingerprint': self.request.get('fingerprint'),
            u'items': self.request.get('items')
        })

    def from_response(self):
        return remove_nones_from_dict({
            u'fingerprint': self.request.get(u'fingerprint'),
            u'items': self.request.get(u'items')
        })

if __name__ == '__main__':
    main()
