#!/usr/bin/python
# Copyright (c) 2017 Alibaba Group Holding Limited. He Guimin <heguimin36@163.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
#
#  This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see http://www.gnu.org/licenses/.

from __future__ import absolute_import, division, print_function
__metaclass__ = type

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

DOCUMENTATION = '''
---
module: ali_instance_facts
version_added: "2.8"
short_description: Gather facts on instances of Alibaba Cloud ECS.
description:
     - This module fetches data from the Open API in Alicloud.
       The module must be called from within the ECS instance itself.

options:
    availability_zone:
      description:
        - Aliyun availability zone ID in which to launch the instance
      aliases: ['alicloud_zone']
    instance_names:
      description:
        - A list of ECS instance names.
      aliases: [ "names"]
    instance_ids:
      description:
        - A list of ECS instance ids.
      aliases: ["ids"]
    instance_tags:
      description:
        - A hash/dictionaries of instance tags. C({"key":"value"})
      aliases: ["tags"]
author:
    - "He Guimin (@xiaozhu36)"
requirements:
    - "python >= 2.6"
    - "footmark >= 1.1.16"
extends_documentation_fragment:
    - alicloud
'''

EXAMPLES = '''
# Fetch instances details according to setting different filters
- name: fetch instances details example
  hosts: localhost
  vars:
    alicloud_access_key: <your-alicloud-access-key>
    alicloud_secret_key: <your-alicloud-secret-key>
    alicloud_region: cn-beijing
    availability_zone: cn-beijing-a

  tasks:
    - name: Find all instances in the specified region
      ali_instance_facts:
        alicloud_access_key: '{{ alicloud_access_key }}'
        alicloud_secret_key: '{{ alicloud_secret_key }}'
        alicloud_region: '{{ alicloud_region }}'
      register: all_instances

    - name: Find all instances based on the specified ids
      ali_instance_facts:
        alicloud_access_key: '{{ alicloud_access_key }}'
        alicloud_secret_key: '{{ alicloud_secret_key }}'
        alicloud_region: '{{ alicloud_region }}'
        instance_ids:
          - "i-35b333d9"
          - "i-ddav43kd"
      register: instances_by_ids

    - name: Find all instances based on the specified names/name-prefixes
      ali_instance_facts:
        alicloud_access_key: '{{ alicloud_access_key }}'
        alicloud_secret_key: '{{ alicloud_secret_key }}'
        alicloud_region: '{{ alicloud_region }}'
        instance_names:
          - "ecs_instance-1"
          - "ecs_instance_2"
      register: instances_by_ids

'''

RETURN = '''
instances:
    description: List of ECS instances
    returned: always
    type: complex
    contains:
        availability_zone:
            description: The availability zone of the instance is in.
            returned: always
            type: str
            sample: cn-beijing-a
        block_device_mappings:
            description: Any block device mapping entries for the instance.
            returned: always
            type: complex
            contains:
                device_name:
                    description: The device name exposed to the instance (for example, /dev/xvda).
                    returned: always
                    type: str
                    sample: /dev/xvda
                attach_time:
                    description: The time stamp when the attachment initiated.
                    returned: always
                    type: str
                    sample: "2018-06-25T04:08:26Z"
                delete_on_termination:
                    description: Indicates whether the volume is deleted on instance termination.
                    returned: always
                    type: bool
                    sample: true
                status:
                    description: The attachment state.
                    returned: always
                    type: str
                    sample: in_use
                volume_id:
                    description: The ID of the cloud disk.
                    returned: always
                    type: str
                    sample: d-2zei53pjsi117y6gf9t6
        cpu:
            description: The CPU core count of the instance.
            returned: always
            type: int
            sample: 4
        creation_time:
            description: The time the instance was created.
            returned: always
            type: str
            sample: "2018-06-25T04:08Z"
        description:
            description: The instance description.
            returned: always
            type: str
            sample: "my ansible instance"
        eip:
            description: The attribution of EIP associated with the instance.
            returned: always
            type: complex
            contains:
                allocation_id:
                    description: The ID of the EIP.
                    returned: always
                    type: str
                    sample: eip-12345
                internet_charge_type:
                    description: The internet charge type of the EIP.
                    returned: always
                    type: str
                    sample: "paybybandwidth"
                ip_address:
                    description: EIP address.
                    returned: always
                    type: str
                    sample: 42.10.2.2
        expired_time:
            description: The time the instance will expire.
            returned: always
            type: str
            sample: "2099-12-31T15:59Z"
        gpu:
            description: The attribution of instance GPU.
            returned: always
            type: complex
            contains:
                amount:
                    description: The count of the GPU.
                    returned: always
                    type: int
                    sample: 0
                spec:
                    description: The specification of the GPU.
                    returned: always
                    type: str
                    sample: ""
        host_name:
            description: The host name of the instance.
            returned: always
            type: str
            sample: iZ2zewaoZ
        id:
            description: Alias of instance_id.
            returned: always
            type: str
            sample: i-abc12345
        instance_id:
            description: ECS instance resource ID.
            returned: always
            type: str
            sample: i-abc12345
        image_id:
            description: The ID of the image used to launch the instance.
            returned: always
            type: str
            sample: m-0011223344
        inner_ip_address:
            description: The inner IPv4 address of the classic instance.
            returned: always
            type: str
            sample: 10.0.0.2
        instance_charge_type:
            description: The instance charge type.
            returned: always
            type: str
            sample: PostPaid
        instance_name:
            description: The name of the instance.
            returned: always
            type: str
            sample: my-ecs
        instance_type:
            description: The instance type of the running instance.
            returned: always
            type: str
            sample: ecs.sn1ne.xlarge
        internet_charge_type:
            description: The billing method of the network bandwidth.
            returned: always
            type: str
            sample: PayByBandwidth
        internet_max_bandwidth_in:
            description: Maximum incoming bandwidth from the internet network.
            returned: always
            type: int
            sample: 200
        internet_max_bandwidth_out:
            description: Maximum incoming bandwidth from the internet network.
            returned: always
            type: int
            sample: 20
        io_optimized:
            description: Indicates whether the instance is optimized for EBS I/O.
            returned: always
            type: bool
            sample: false
        memory:
            description: Memory size of the instance.
            returned: always
            type: int
            sample: 8192
        network_interfaces:
            description: One or more network interfaces for the instance.
            returned: always
            type: complex
            contains:
                mac_address:
                    description: The MAC address.
                    returned: always
                    type: str
                    sample: "00:11:22:33:44:55"
                network_interface_id:
                    description: The ID of the network interface.
                    returned: always
                    type: str
                    sample: eni-01234567
                primary_ip_address:
                    description: The primary IPv4 address of the network interface within the vswitch.
                    returned: always
                    type: str
                    sample: 10.0.0.1
        osname:
            description: The operation system name of the instance owned.
            returned: always
            type: str
            sample: CentOS
        ostype:
            description: The operation system type of the instance owned.
            returned: always
            type: str
            sample: linux
        private_ip_address:
            description: The IPv4 address of the network interface within the subnet.
            returned: always
            type: str
            sample: 10.0.0.1
        public_ip_address:
            description: The public IPv4 address assigned to the instance
            returned: always
            type: str
            sample: 43.0.0.1
        resource_group_id:
            description: The id of the resource group to which the instance belongs.
            returned: always
            type: str
            sample: my-ecs-group
        security_groups:
            description: One or more security groups for the instance.
            returned: always
            type: complex
            contains:
                - group_id:
                      description: The ID of the security group.
                      returned: always
                      type: str
                      sample: sg-0123456
                - group_name:
                      description: The name of the security group.
                      returned: always
                      type: str
                      sample: my-security-group
        status:
            description: The current status of the instance.
            returned: always
            type: str
            sample: running
        tags:
            description: Any tags assigned to the instance.
            returned: always
            type: dict
            sample:
        vswitch_id:
            description: The ID of the vswitch in which the instance is running.
            returned: always
            type: str
            sample: vsw-dew00abcdef
        vpc_id:
            description: The ID of the VPC the instance is in.
            returned: always
            type: dict
            sample: vpc-0011223344
ids:
    description: List of ECS instance IDs
    returned: always
    type: list
    sample: [i-12345er, i-3245fs]
'''

# import time
# import sys
import traceback
from ansible.module_utils.basic import AnsibleModule, missing_required_lib
from ansible.module_utils.alicloud_ecs import get_acs_connection_info, ecs_argument_spec, ecs_connect

HAS_FOOTMARK = False
FOOTMARK_IMP_ERR = None
try:
    from footmark.exception import ECSResponseError
    HAS_FOOTMARK = True
except ImportError:
    FOOTMARK_IMP_ERR = traceback.format_exc()
    HAS_FOOTMARK = False


def main():
    argument_spec = ecs_argument_spec()
    argument_spec.update(dict(
        availability_zone=dict(aliases=['alicloud_zone']),
        instance_ids=dict(type='list', aliases=['ids']),
        instance_names=dict(type='list', aliases=['names']),
        instance_tags=dict(type='list', aliases=['tags']),
    )
    )
    module = AnsibleModule(argument_spec=argument_spec)

    if HAS_FOOTMARK is False:
        module.fail_json(msg=missing_required_lib('footmark'), exception=FOOTMARK_IMP_ERR)

    ecs = ecs_connect(module)

    instances = []
    instance_ids = []
    ids = module.params['instance_ids']
    names = module.params['instance_names']
    zone_id = module.params['availability_zone']
    if ids and (not isinstance(ids, list) or len(ids) < 1):
        module.fail_json(msg='instance_ids should be a list of instances, aborting')

    if names and (not isinstance(names, list) or len(names) < 1):
        module.fail_json(msg='instance_ids should be a list of instances, aborting')

    if names:
        for name in names:
            for inst in ecs.get_all_instances(zone_id=zone_id, instance_ids=ids, instance_name=name):
                instances.append(inst.read())
                instance_ids.append(inst.id)
    else:
        for inst in ecs.get_all_instances(zone_id=zone_id, instance_ids=ids):
            instances.append(inst.read())
            instance_ids.append(inst.id)

    module.exit_json(changed=False, ids=instance_ids, instances=instances)


if __name__ == '__main__':
    main()
