#!/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
#
# ----------------------------------------------------------------------------

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_cloudbuild_trigger
description:
- Configuration for an automated build in response to source repository changes.
short_description: Creates a GCP Trigger
version_added: 2.8
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
  id:
    description:
    - The unique identifier for the trigger.
    required: false
  description:
    description:
    - Human-readable description of the trigger.
    required: false
  disabled:
    description:
    - Whether the trigger is disabled or not. If true, the trigger will never result
      in a build.
    required: false
  substitutions:
    description:
    - Substitutions data for Build resource.
    required: false
  filename:
    description:
    - Path, from the source root, to a file whose contents is used for the template.
      Either a filename or build template must be provided.
    required: false
  ignored_files:
    description:
    - ignoredFiles and includedFiles are file glob matches using http://godoc/pkg/path/filepath#Match
      extended with support for `**`.
    - If ignoredFiles and changed files are both empty, then they are not used to
      determine whether or not to trigger a build.
    - If ignoredFiles is not empty, then we ignore any files that match any of the
      ignored_file globs. If the change has no files that are outside of the ignoredFiles
      globs, then we do not trigger a build.
    required: false
  included_files:
    description:
    - ignoredFiles and includedFiles are file glob matches using http://godoc/pkg/path/filepath#Match
      extended with support for `**`.
    - If any of the files altered in the commit pass the ignoredFiles filter and includedFiles
      is empty, then as far as this filter is concerned, we should trigger the build.
    - If any of the files altered in the commit pass the ignoredFiles filter and includedFiles
      is not empty, then we make sure that at least one of those files matches a includedFiles
      glob. If not, then we do not trigger a build.
    required: false
  trigger_template:
    description:
    - Template describing the types of source changes to trigger a build.
    - Branch and tag names in trigger templates are interpreted as regular expressions.
      Any branch or tag change that matches that regular expression will trigger a
      build.
    required: false
    suboptions:
      project_id:
        description:
        - ID of the project that owns the Cloud Source Repository. If omitted, the
          project ID requesting the build is assumed.
        required: false
      repo_name:
        description:
        - Name of the Cloud Source Repository. If omitted, the name "default" is assumed.
        required: false
        default: default
      dir:
        description:
        - Directory, relative to the source root, in which to run the build.
        - This must be a relative path. If a step's dir is specified and is an absolute
          path, this value is ignored for that step's execution.
        required: false
      branch_name:
        description:
        - Name of the branch to build. Exactly one a of branch name, tag, or commit
          SHA must be provided.
        required: false
      tag_name:
        description:
        - Name of the tag to build. Exactly one of a branch name, tag, or commit SHA
          must be provided.
        required: false
      commit_sha:
        description:
        - Explicit commit SHA to build. Exactly one of a branch name, tag, or commit
          SHA must be provided.
        required: false
  build:
    description:
    - Contents of the build template. Either a filename or build template must be
      provided.
    required: false
    suboptions:
      tags:
        description:
        - Tags for annotation of a Build. These are not docker tags.
        required: false
      images:
        description:
        - A list of images to be pushed upon the successful completion of all build
          steps.
        - The images are pushed using the builder service account's credentials.
        - The digests of the pushed images will be stored in the Build resource's
          results field.
        - If any of the images fail to be pushed, the build status is marked FAILURE.
        required: false
      steps:
        description:
        - The operations to be performed on the workspace.
        required: false
        suboptions:
          name:
            description:
            - The name of the container image that will run this particular build
              step.
            - If the image is available in the host's Docker daemon's cache, it will
              be run directly. If not, the host will attempt to pull the image first,
              using the builder service account's credentials if necessary.
            - The Docker daemon's cache will already have the latest versions of all
              of the officially supported build steps (U(https://github.com/GoogleCloudPlatform/cloud-builders).)
            - The Docker daemon will also have cached many of the layers for some
              popular images, like "ubuntu", "debian", but they will be refreshed
              at the time you attempt to use them.
            - If you built an image in a previous build step, it will be stored in
              the host's Docker daemon's cache and is available to use as the name
              for a later build step.
            required: false
          args:
            description:
            - A list of arguments that will be presented to the step when it is started.
            - If the image used to run the step's container has an entrypoint, the
              args are used as arguments to that entrypoint. If the image does not
              define an entrypoint, the first element in args is used as the entrypoint,
              and the remainder will be used as arguments.
            required: false
extends_documentation_fragment: gcp
notes:
- 'API Reference: U(https://cloud.google.com/cloud-build/docs/api/reference/rest/)'
- 'Automating builds using build triggers: U(https://cloud.google.com/cloud-build/docs/running-builds/automate-builds)'
- The id for this resource is created by the API after you create the resource the
  first time. If you want to manage this resource after creation, you'll have to copy
  the generated id into the playbook. If you do not, new triggers will be created
  on subsequent runs.
'''

EXAMPLES = '''
- name: create a repository
  gcp_sourcerepo_repository:
    name: projects/{{ gcp_project }}/repos/{{ resource_name }}
    project: "{{ gcp_project }}"
    auth_kind: "{{ gcp_cred_kind }}"
    service_account_file: "{{ gcp_cred_file }}"
    state: present

- name: create a trigger
  gcp_cloudbuild_trigger:
    trigger_template:
      branch_name: master
      project_id: test_project
      repo_name: test_object
    filename: cloudbuild.yaml
    project: test_project
    auth_kind: serviceaccount
    service_account_file: "/tmp/auth.pem"
    state: present
'''

RETURN = '''
id:
  description:
  - The unique identifier for the trigger.
  returned: success
  type: str
description:
  description:
  - Human-readable description of the trigger.
  returned: success
  type: str
disabled:
  description:
  - Whether the trigger is disabled or not. If true, the trigger will never result
    in a build.
  returned: success
  type: str
createTime:
  description:
  - Time when the trigger was created.
  returned: success
  type: str
substitutions:
  description:
  - Substitutions data for Build resource.
  returned: success
  type: dict
filename:
  description:
  - Path, from the source root, to a file whose contents is used for the template.
    Either a filename or build template must be provided.
  returned: success
  type: str
ignoredFiles:
  description:
  - ignoredFiles and includedFiles are file glob matches using http://godoc/pkg/path/filepath#Match
    extended with support for `**`.
  - If ignoredFiles and changed files are both empty, then they are not used to determine
    whether or not to trigger a build.
  - If ignoredFiles is not empty, then we ignore any files that match any of the ignored_file
    globs. If the change has no files that are outside of the ignoredFiles globs,
    then we do not trigger a build.
  returned: success
  type: list
includedFiles:
  description:
  - ignoredFiles and includedFiles are file glob matches using http://godoc/pkg/path/filepath#Match
    extended with support for `**`.
  - If any of the files altered in the commit pass the ignoredFiles filter and includedFiles
    is empty, then as far as this filter is concerned, we should trigger the build.
  - If any of the files altered in the commit pass the ignoredFiles filter and includedFiles
    is not empty, then we make sure that at least one of those files matches a includedFiles
    glob. If not, then we do not trigger a build.
  returned: success
  type: list
triggerTemplate:
  description:
  - Template describing the types of source changes to trigger a build.
  - Branch and tag names in trigger templates are interpreted as regular expressions.
    Any branch or tag change that matches that regular expression will trigger a build.
  returned: success
  type: complex
  contains:
    projectId:
      description:
      - ID of the project that owns the Cloud Source Repository. If omitted, the project
        ID requesting the build is assumed.
      returned: success
      type: str
    repoName:
      description:
      - Name of the Cloud Source Repository. If omitted, the name "default" is assumed.
      returned: success
      type: str
    dir:
      description:
      - Directory, relative to the source root, in which to run the build.
      - This must be a relative path. If a step's dir is specified and is an absolute
        path, this value is ignored for that step's execution.
      returned: success
      type: str
    branchName:
      description:
      - Name of the branch to build. Exactly one a of branch name, tag, or commit
        SHA must be provided.
      returned: success
      type: str
    tagName:
      description:
      - Name of the tag to build. Exactly one of a branch name, tag, or commit SHA
        must be provided.
      returned: success
      type: str
    commitSha:
      description:
      - Explicit commit SHA to build. Exactly one of a branch name, tag, or commit
        SHA must be provided.
      returned: success
      type: str
build:
  description:
  - Contents of the build template. Either a filename or build template must be provided.
  returned: success
  type: complex
  contains:
    tags:
      description:
      - Tags for annotation of a Build. These are not docker tags.
      returned: success
      type: list
    images:
      description:
      - A list of images to be pushed upon the successful completion of all build
        steps.
      - The images are pushed using the builder service account's credentials.
      - The digests of the pushed images will be stored in the Build resource's results
        field.
      - If any of the images fail to be pushed, the build status is marked FAILURE.
      returned: success
      type: list
    steps:
      description:
      - The operations to be performed on the workspace.
      returned: success
      type: complex
      contains:
        name:
          description:
          - The name of the container image that will run this particular build step.
          - If the image is available in the host's Docker daemon's cache, it will
            be run directly. If not, the host will attempt to pull the image first,
            using the builder service account's credentials if necessary.
          - The Docker daemon's cache will already have the latest versions of all
            of the officially supported build steps (U(https://github.com/GoogleCloudPlatform/cloud-builders).)
          - The Docker daemon will also have cached many of the layers for some popular
            images, like "ubuntu", "debian", but they will be refreshed at the time
            you attempt to use them.
          - If you built an image in a previous build step, it will be stored in the
            host's Docker daemon's cache and is available to use as the name for a
            later build step.
          returned: success
          type: str
        args:
          description:
          - A list of arguments that will be presented to the step when it is started.
          - If the image used to run the step's container has an entrypoint, the args
            are used as arguments to that entrypoint. If the image does not define
            an entrypoint, the first element in args is used as the entrypoint, and
            the remainder will be used as arguments.
          returned: success
          type: list
'''

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

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

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


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

    module = GcpModule(
        argument_spec=dict(
            state=dict(default='present', choices=['present', 'absent'], type='str'),
            id=dict(type='str'),
            description=dict(type='str'),
            disabled=dict(type='str'),
            substitutions=dict(type='dict'),
            filename=dict(type='str'),
            ignored_files=dict(type='list', elements='str'),
            included_files=dict(type='list', elements='str'),
            trigger_template=dict(
                type='dict',
                options=dict(
                    project_id=dict(type='str'),
                    repo_name=dict(default='default', type='str'),
                    dir=dict(type='str'),
                    branch_name=dict(type='str'),
                    tag_name=dict(type='str'),
                    commit_sha=dict(type='str'),
                ),
            ),
            build=dict(
                type='dict',
                options=dict(
                    tags=dict(type='list', elements='str'),
                    images=dict(type='list', elements='str'),
                    steps=dict(type='list', elements='dict', options=dict(name=dict(type='str'), args=dict(type='list', elements='str'))),
                ),
            ),
        ),
        mutually_exclusive=[['build', 'filename']],
    )

    if not module.params['scopes']:
        module.params['scopes'] = ['https://www.googleapis.com/auth/cloud-platform']

    state = module.params['state']

    if module.params['id']:
        fetch = fetch_resource(module, self_link(module))
    else:
        fetch = {}
    changed = False

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

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

    module.exit_json(**fetch)


def create(module, link):
    auth = GcpSession(module, 'cloudbuild')
    return return_if_object(module, auth.post(link, resource_to_request(module)))


def update(module, link):
    auth = GcpSession(module, 'cloudbuild')
    return return_if_object(module, auth.patch(link, resource_to_request(module)))


def delete(module, link):
    auth = GcpSession(module, 'cloudbuild')
    return return_if_object(module, auth.delete(link))


def resource_to_request(module):
    request = {
        u'id': module.params.get('id'),
        u'description': module.params.get('description'),
        u'disabled': module.params.get('disabled'),
        u'substitutions': module.params.get('substitutions'),
        u'filename': module.params.get('filename'),
        u'ignoredFiles': module.params.get('ignored_files'),
        u'includedFiles': module.params.get('included_files'),
        u'triggerTemplate': TriggerTriggertemplate(module.params.get('trigger_template', {}), module).to_request(),
        u'build': TriggerBuild(module.params.get('build', {}), module).to_request(),
    }
    return_vals = {}
    for k, v in request.items():
        if v or v is False:
            return_vals[k] = v

    return return_vals


def fetch_resource(module, link, allow_not_found=True):
    auth = GcpSession(module, 'cloudbuild')
    return return_if_object(module, auth.get(link), allow_not_found)


def self_link(module):
    return "https://cloudbuild.googleapis.com/v1/projects/{project}/triggers/{id}".format(**module.params)


def collection(module):
    return "https://cloudbuild.googleapis.com/v1/projects/{project}/triggers".format(**module.params)


def return_if_object(module, response, allow_not_found=False):
    # If not found, return nothing.
    if allow_not_found and 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):
        module.fail_json(msg="Invalid JSON response with error: %s" % response.text)

    if navigate_hash(result, ['error', 'errors']):
        module.fail_json(msg=navigate_hash(result, ['error', 'errors']))

    return result


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

    # 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'id': response.get(u'id'),
        u'description': response.get(u'description'),
        u'disabled': response.get(u'disabled'),
        u'createTime': response.get(u'createTime'),
        u'substitutions': response.get(u'substitutions'),
        u'filename': response.get(u'filename'),
        u'ignoredFiles': response.get(u'ignoredFiles'),
        u'includedFiles': response.get(u'includedFiles'),
        u'triggerTemplate': TriggerTriggertemplate(response.get(u'triggerTemplate', {}), module).from_response(),
        u'build': TriggerBuild(response.get(u'build', {}), module).from_response(),
    }


class TriggerTriggertemplate(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'projectId': self.request.get('project_id'),
                u'repoName': self.request.get('repo_name'),
                u'dir': self.request.get('dir'),
                u'branchName': self.request.get('branch_name'),
                u'tagName': self.request.get('tag_name'),
                u'commitSha': self.request.get('commit_sha'),
            }
        )

    def from_response(self):
        return remove_nones_from_dict(
            {
                u'projectId': self.request.get(u'projectId'),
                u'repoName': self.request.get(u'repoName'),
                u'dir': self.request.get(u'dir'),
                u'branchName': self.request.get(u'branchName'),
                u'tagName': self.request.get(u'tagName'),
                u'commitSha': self.request.get(u'commitSha'),
            }
        )


class TriggerBuild(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'tags': self.request.get('tags'),
                u'images': self.request.get('images'),
                u'steps': TriggerStepsArray(self.request.get('steps', []), self.module).to_request(),
            }
        )

    def from_response(self):
        return remove_nones_from_dict(
            {
                u'tags': self.request.get(u'tags'),
                u'images': self.request.get(u'images'),
                u'steps': TriggerStepsArray(self.request.get(u'steps', []), self.module).from_response(),
            }
        )


class TriggerStepsArray(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'args': item.get('args')})

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


if __name__ == '__main__':
    main()