#!/usr/bin/python
# -*- coding: utf-8 -*-

# (c) 2018, Simon Dodsley (simon@purestorage.com)
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

from __future__ import absolute_import, division, print_function

__metaclass__ = type

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

DOCUMENTATION = r"""
---
module: purefb_s3acc
version_added: '1.0.0'
short_description: Create or delete FlashBlade Object Store accounts
description:
- Create or delete object store accounts on a Pure Stoage FlashBlade.
author:
- Pure Storage Ansible Team (@sdodsley) <pure-ansible-team@purestorage.com>
options:
  state:
    description:
    - Create or delete object store account
    default: present
    choices: [ absent, present ]
    type: str
  name:
    description:
    - The name of object store account
    type: str
    required: true
extends_documentation_fragment:
- purestorage.flashblade.purestorage.fb
"""

EXAMPLES = r"""
- name: Crrate object store account foo
  purefb_s3acc:
    name: foo
    fb_url: 10.10.10.2
    api_token: e31060a7-21fc-e277-6240-25983c6c4592

- name: Delete object store account foo
  purefb_s3acc:
    name: foo
    state: absent
    fb_url: 10.10.10.2
    api_token: e31060a7-21fc-e277-6240-25983c6c4592
"""

RETURN = r"""
"""


from ansible.module_utils.basic import AnsibleModule
from ansible_collections.purestorage.flashblade.plugins.module_utils.purefb import (
    get_blade,
    purefb_argument_spec,
)


MIN_REQUIRED_API_VERSION = "1.3"


def get_s3acc(module, blade):
    """Return Object Store Account or None"""
    s3acc = None
    accts = blade.object_store_accounts.list_object_store_accounts()
    for acct in range(0, len(accts.items)):
        if accts.items[acct].name == module.params["name"]:
            s3acc = accts.items[acct]
    return s3acc


def update_s3acc(module, blade):
    """Update Object Store Account"""
    changed = False
    module.exit_json(changed=changed)


def create_s3acc(module, blade):
    """Create Object Store Account"""
    changed = True
    if not module.check_mode:
        try:
            blade.object_store_accounts.create_object_store_accounts(
                names=[module.params["name"]]
            )
        except Exception:
            module.fail_json(
                msg="Object Store Account {0}: Creation failed".format(
                    module.params["name"]
                )
            )
    module.exit_json(changed=changed)


def delete_s3acc(module, blade):
    """Delete Object Store Account"""
    changed = True
    if not module.check_mode:
        count = len(
            blade.object_store_users.list_object_store_users(
                filter="name='" + module.params["name"] + "/*'"
            ).items
        )
        if count != 0:
            module.fail_json(
                msg="Remove all Users from Object Store Account {0} \
                                 before deletion".format(
                    module.params["name"]
                )
            )
        else:
            try:
                blade.object_store_accounts.delete_object_store_accounts(
                    names=[module.params["name"]]
                )
            except Exception:
                module.fail_json(
                    msg="Object Store Account {0}: Deletion failed".format(
                        module.params["name"]
                    )
                )
    module.exit_json(changed=changed)


def main():
    argument_spec = purefb_argument_spec()
    argument_spec.update(
        dict(
            name=dict(required=True, type="str"),
            state=dict(default="present", choices=["present", "absent"]),
        )
    )

    module = AnsibleModule(argument_spec, supports_check_mode=True)

    state = module.params["state"]
    blade = get_blade(module)
    versions = blade.api_version.list_versions().versions

    if MIN_REQUIRED_API_VERSION not in versions:
        module.fail_json(
            msg="Minimum FlashBlade REST version required: {0}".format(
                MIN_REQUIRED_API_VERSION
            )
        )

    upper = False
    for element in module.params["name"]:
        if element.isupper():
            upper = True
            break
    if upper:
        module.warn("Changing account name to lowercase...")
        module.params["name"] = module.params["name"].lower()

    s3acc = get_s3acc(module, blade)

    if state == "absent" and s3acc:
        delete_s3acc(module, blade)
    elif state == "present" and s3acc:
        update_s3acc(module, blade)
    elif not s3acc and state == "present":
        create_s3acc(module, blade)
    else:
        module.exit_json(changed=False)


if __name__ == "__main__":
    main()