---
# Copyright 2016, Rackspace US, Inc.
# Copyright 2017, SUSE LINUX GmbH.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Clone the scenario requirements
  hosts: localhost
  connection: local
  gather_facts: true
  vars_files:
    - ../var/opnfv.yml
  tasks:
    - name: Remove existing scenario directories
      file:
        path: "{{ item[1] }}/{{ item[0].scenario }}"
        state: absent
      with_nested:
        - "{{ scenarios }}"
        - [ "{{ scenario_path_default }}", "{{ role_path_default }}" ]
      loop_control:
        label: "{{ item[0].scenario }}"

    - name: Create scenario directories
      file:
        path: "{{ role_path_default }}/{{ item.scenario }}"
        state: directory
      with_items: "{{ scenarios }}"
      loop_control:
        label: "{{ item.scenario }}"

    - name: Clone git repos (with git)
      git:
        repo: "{{ item.src }}"
        dest: "{{ scenario_path_default }}/{{ item.scenario | default(item.src | basename) }}"
        version: "{{ item.version | default('master') }}"
        refspec: "{{ item.refspec | default(omit) }}"
        update: true
        force: true
      when:
        - item.scm == "git" or item.scm is undefined
      with_items: "{{ scenarios }}"
      register: git_clone
      until: git_clone | success
      retries: "{{ git_clone_retries }}"
      delay: "{{ git_clone_retry_delay }}"
      loop_control:
        label: "{{ item.scenario }}"

    - name: Check that scenarios exist
      stat:
        path: "{{ scenario_path_default }}/{{ item.scenario }}/{{ item.role }}"
      register: scenarios_list_exists
      with_items: "{{ scenarios }}"
      loop_control:
        label: "{{ item.scenario }}"

    - name: Plug in the scenario to XCI
      synchronize:
        src: "{{ scenario_path_default }}/{{ item.item.scenario }}/{{ item.item.role }}/"
        dest: "{{ role_path_default }}/{{ item.item.scenario }}"
      when: item.stat.exists
      with_items: "{{ scenarios_list_exists.results }}"
      loop_control:
        label: "{{ item.item.scenario }}"

    - name: Synchronize local changes to scenarios' master branch
      synchronize:
        src: "{{ XCI_PATH }}/{{ item.item.role }}/"
        dest: "{{ role_path_default }}/{{ item.item.scenario }}"
      failed_when: false
      when:
        - item.stat.exists
        - item.item.version == 'master'
      with_items: "{{ scenarios_list_exists.results }}"
      loop_control:
        label: "{{ item.item.scenario }}"

    - name: Plug in the scenario to XCI (fallback)
      synchronize:
        src: "{{ XCI_PATH }}/{{ item.item.role }}/"
        dest: "{{ role_path_default }}/{{ item.item.scenario }}"
      when: not item.stat.exists
      with_items: "{{ scenarios_list_exists.results }}"
      loop_control:
        label: "{{ item.item.scenario }}"

    - name: Gather information about the selected {{ DEPLOY_SCENARIO }} scenario
      set_fact:
        deploy_scenario: "{{ item }}"
      with_items: "{{ scenarios }}"
      loop_control:
        label: "{{ item.scenario }}"
      when: DEPLOY_SCENARIO | lower == item.scenario

    - name: Determine if the selected {{ DEPLOY_SCENARIO }} scenario can be deployed
      block:
        - set_fact:
            deploy_scenario_nfvi: "{{ item }}"
          with_items: "{{ deploy_scenario.nfvis }}"
          loop_control:
            label: "{{ item.nfvi }}"
          when: item.nfvi == XCI_NFVI
        - set_fact:
            deploy_scenario_flavor: "{{ (XCI_FLAVOR in deploy_scenario_nfvi.flavors) | bool }}"
          when:
            - deploy_scenario_nfvi
        - set_fact:
            deploy_scenario_distro: "{{ (XCI_DISTRO in deploy_scenario_nfvi.distros) | bool }}"
          when:
            - deploy_scenario_nfvi
            - deploy_scenario_flavor
      when: deploy_scenario is defined

    - name: Fail if {{ DEPLOY_SCENARIO }} is not supported
      fail:
        msg:
          - ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
          - ERROR! The {{ DEPLOY_SCENARIO }} scenario can't be deployed. This is because
          - the {{ XCI_NFVI }} NFVI or the {{ XCI_FLAVOR }} flavor or the {{ XCI_DISTRO }}
          - distribution is not supported by this scenario. It may also be possible that
          - this scenario doesn't exist at all or it's not listed in {{ scenario_file }}.
          - ''
          - This is a great chance for you to contribute to XCI ;-)
          - ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
          - ''
      when:
        - deploy_scenario is not defined or not deploy_scenario_distro

  vars:
    ansible_python_interpreter: "/usr/bin/python"
    scenarios: "{{ lookup('file', scenario_file) | from_yaml }}"
    scenario_file: '../opnfv-scenario-requirements.yml'
    scenario_path_default: "{{ XCI_SCENARIOS_CACHE }}"
    role_path_default: "{{ playbook_dir }}/roles"
    git_clone_retries: 2
    git_clone_retry_delay: 5