- name: Checking xs_domain_name
  shell: "cat /etc/sysconfig/xs_domain_name"
  register: prior_domain
  ignore_errors: True

# above always registers
- name: Checking for prior domain name
  set_fact:
    iiab_domain: "{{ prior_domain.stdout }}"
  when: prior_domain.stdout != "lan" and prior_domain.stdout != ""

- name: xs_wan_device
  shell: "cat /etc/sysconfig/xs_wan_device"
  register: prior_gw
  ignore_errors: True

- name: Checking for old device gateway interface for device test
  set_fact:
    device_gw: "{{ prior_gw.stdout }}"
    device_gw2: "{{ prior_gw.stdout }}"
  when: prior_gw is defined and prior_gw.stdout != ""

- name: Checking for ifcfg-WAN file
  stat: path=/etc/sysconfig/network-scripts/ifcfg-WAN
  register: has_ifcfg_WAN

- name: Setting ifcfg-WAN True
  set_fact:
    has_WAN: True
  when: has_ifcfg_WAN.stat.exists

# DETECT -- gateway and wireless
- name: Get a list of slaves from previous config
  shell: "egrep -rn BRIDGE=br0 /etc/sysconfig/network-scripts/ifcfg-* | gawk -F'[-:]' '{print $3}'"
  register: ifcfg_slaves
  ignore_errors: True
  changed_when: False

# Discover  do we have a gateway? -- if ansible detects gateway, becomes WAN candidate
- name: Finding gateway
  set_fact:
    discovered_wan_iface: "{{ ansible_default_ipv4.alias }}"
  when: 'ansible_default_ipv4.gateway is defined'

- name: Verify gateway present
  shell: ping -c2 "{{ ansible_default_ipv4.gateway }}" &> /dev/null ; echo $?
  register: gw_active_test
  when: discovered_wan_iface != "none"

- name: Recording gateway response
  set_fact:
     gw_active: True
  when: discovered_wan_iface != "none" and gw_active_test.stdout == "0"

- name: Test for internet access
  get_url: url="{{ iiab_download_url }}/heart-beat.txt" dest=/tmp/heart-beat.txt
  ignore_errors: True
#  async: 10
#  poll: 2
  register: internet_access_test

- name: Set has_internet_connection true if wget succeeded
  set_fact:
     has_internet_connection: True
  when: not internet_access_test|failed

- name: Cleanup internet test file
  file: path=/tmp/heart-beat.txt
        state=absent

- name: Turn off downloads if no internet connection
  set_fact:
     no_network: True
  when: not has_internet_connection

- name: Testing for iiab_preload
  set_fact:
     use_cache: True
     no_network: True
  when: iiab_preload == "True"

- name: Setting wan if detected
  set_fact:
    iiab_wan_iface: "{{ discovered_wan_iface }}"
    device_gw: "{{ discovered_wan_iface }}"
  when: discovered_wan_iface != "none"

# returns list of paths
- name: Find gateway config based on device
  shell: "egrep -rn {{ device_gw }} /etc/sysconfig/network-scripts/ifcfg* | gawk -F ':' '{print $1}'"
  register: ifcfg_gw_device
  ignore_errors: True
  changed_when: False
  when: device_gw != "none"

# last match wins
- name: Setting has ifcfg gw based on device if found
  set_fact:
    has_ifcfg_gw: "{{ item|trim }}"
  ignore_errors: True
  when: ifcfg_gw_device.stdout_lines is defined and item|trim != "" and item|trim != "/etc/sysconfig/network-scripts/ifcfg-LAN"
  with_items:
      - "{{ ifcfg_gw_device.stdout_lines }}"

# returns path
- name: Find active gateway config based on macaddress
  shell: "egrep -irn {{ ansible_default_ipv4.macaddress }} /etc/sysconfig/network-scripts/ifcfg* | gawk -F ':' '{print $1}' | head -n 1"
  register: ifcfg_gw_mac
  ignore_errors: True
  changed_when: False
  when: 'ansible_default_ipv4.gateway is defined'

- name: Set has ifcfg gw based on on macaddress if found
  set_fact:
    has_ifcfg_gw: "{{ ifcfg_gw_mac.stdout|trim }}"
  when: ifcfg_gw_mac is defined and ifcfg_gw_mac.stdout != ""

# could use something else
- name: Find wifi gateway config if present
  shell: egrep -rn ESSID /etc/sysconfig/network-scripts/ifcfg* | gawk -F ':' '{print $1}' | gawk -F '/' '{print $5}'
  register: ifcfg_WAN_wifi
  ignore_errors: True

#returns file name
- name: Setting has_wifi_gw based on ESSID if found
  set_fact:
    has_wifi_gw: "{{ item|trim }}"
  when: ifcfg_WAN_wifi.changed and item|trim != ""
  with_items:
      - "{{ ifcfg_WAN_wifi.stdout_lines }}"

- name: Finding device for wifi AP gateway
  shell: egrep -rn DEVICE /etc/sysconfig/network-scripts/{{ has_wifi_gw }} |  gawk -F '=' '{print $2}'
  register: AP_device
  when: has_wifi_gw != "none" and has_ifcfg_gw != "none"

- name: Setting wifi device
  set_fact:
    ap_device: "{{ AP_device.stdout }}"
  when: AP_device.stdout is defined and AP_device.stdout != ""

# WIRELESS -- if any wireless is detected as gateway, it becomes WAN
- name: Look for any wireless interfaces
  shell: "cat /proc/net/wireless | grep -v -e Inter -e face | gawk -F: '{print $1}' "
  register: wireless_list1
  ignore_errors: True
  changed_when: False

- name: Set the discovered wireless, if found
  set_fact:
     wifi1: "{{ item|trim }}"
     discovered_wireless_iface: "{{ item|trim }}"
  when: item|trim != "" and item|trim != discovered_wan_iface
  with_items: 
      - "{{ wireless_list1.stdout_lines }}"

# WIRELESS -- Sigh... Not all drivers update /proc/net/wireless correctly
- name: Look for any wireless interfaces take 2
  shell: "ls -la /sys/class/net/*/phy80211 | awk -F / '{print $5}'"
  register: wireless_list2
  ignore_errors: True
  changed_when: False

# Last device is used
- name: Set the discovered wireless, if found take 2
  set_fact:
     wifi2: "{{ item|trim }}"
     discovered_wireless_iface: "{{ item|trim }}"
  when: wireless_list2.stdout != "" and item|trim != discovered_wan_iface
  with_items:
      - "{{ wireless_list2.stdout_lines }}"

- name: Count Wifi ifaces
  shell: "ls -la /sys/class/net/*/phy80211 | awk -F / '{print $5}' | wc -l"
  register: count_wifi_interfaces

- name: Remember number of Wifi devices
  set_fact:
      num_wifi_interfaces: "{{ count_wifi_interfaces.stdout|int }}"

# XO hack here ap_device would not be active therefore not set with
# wired as gw use ap_device to exclude eth0 from network calulations

- name: XO override 2 wifi on LAN
  set_fact:
      ap_device: "eth0"
  when: iiab_wan_iface != "eth0" and discovered_wireless_iface != "none" and xo_model == "XO-1.5"

# takes adapter name
- name: Blacklisted wifi adapter
  set_fact:
      ap_device: "{{ blacklist_wifi }}"
  when: blacklist_wifi is defined and discovered_wireless_iface != iiab_wan_iface and num_wifi_interfaces >= "2"

# LAN - pick non WAN's
- name: Create list of  LAN (non wan) ifaces
  shell: ls /sys/class/net | grep -v -e wwlan -e ppp -e lo -e br0 -e tun -e {{ device_gw }} -e {{ ap_device }}
  register: lan_list_result
  ignore_errors: True
  changed_when: false

# Select an adapter that is not WAN and not wireless
# if there is more than one the last one wins
- name: Set iiab discovered lan fact
  set_fact:
    discovered_lan_iface: "{{ item|trim }}"
  when: item|trim != discovered_wireless_iface and item|trim != discovered_wan_iface
  with_items:
      - "{{ lan_list_result.stdout_lines }}"

- name: Count LAN ifaces
  shell: ls /sys/class/net | grep -v  -e wwlan -e ppp -e lo -e br0 -e tun -e {{ device_gw }} -e {{ ap_device }} | wc -l
  register: num_lan_interfaces_result
  ignore_errors: True
  changed_when: false

# facts are apparently all stored as text, so do text comparisons from here on
- name: Calulate number of LAN interfaces including WiFi
  set_fact:
      num_lan_interfaces: "{{ num_lan_interfaces_result.stdout|int }}"

# If 2 interfaces found in gateway mode, with one wifi, declare other to be wan
#- name: In gateway mode with one wifi adapter, the other is WAN
#  set_fact:
#      iiab_wan_iface: "{{ discovered_lan_iface }}"
#      iiab_lan_iface: "{{ discovered_wireless_iface }}"
#      num_lan_interfaces: "1"
#  when: iiab_lan_enabled and iiab_wan_enabled and num_lan_interfaces == "2" and discovered_wireless_iface != "none" and iiab_wan_iface == "none"

- name: Set the variable for wireless_iface if present
  set_fact:
       iiab_wireless_lan_iface: "{{ discovered_wireless_iface }}"
  when: discovered_wireless_iface != "none" and discovered_wireless_iface != iiab_wan_iface

#unused
- name: Get a list of ifcfg files to delete
  shell: "ls -1 /etc/sysconfig/network-scripts/ifcfg-* | grep -v -e ifcfg-lo  -e ifcfg-WAN -e {{ has_wifi_gw }}"
  register: ifcfg_files
  changed_when: False
  ignore_errors: True
  when: num_lan_interfaces >= "1" or iiab_wireless_lan_iface != "none"
#

# use value only if present
- name: Setting detected lan
  set_fact:
    iiab_lan_iface: "{{ discovered_lan_iface }}"
  when: 'discovered_lan_iface != "none" and num_lan_interfaces == "1"'

- name: for debian, always use bridging
  set_fact:
     iiab_lan_iface: br0
  when: 'discovered_lan_iface != "none" and num_lan_interfaces >= "1" and is_debian'

- name: 2 or more devices on the LAN - use bridging
  set_fact:
     iiab_lan_iface: br0
  when: 'discovered_lan_iface != "none" and num_lan_interfaces >= "2" and not is_debian'

- name: WiFi is on the LAN - use bridging
  set_fact:
    iiab_lan_iface: br0
  when: iiab_wireless_lan_iface != "none"

# OK try old gw this is a best guess based on what's in
# /etc/sysconfig/xs_wan_device's last state intended to
# provide a seed value to display in the GUI when no
# gateway is present but we had one.
- name: Has old gateway and no discovered gateway setting WAN
  set_fact:
    gui_wan_iface: "{{ device_gw }}"
  when: user_wan_iface == "auto" and device_gw != "none" and discovered_wan_iface == "none"

- name: Add location section to config file
  ini_file: dest='{{ iiab_config_file }}'
            section=network
            option='{{ item.option }}'
            value='{{ item.value }}'
  with_items:
  - option: 'gateway_active'
    value:  '{{ gw_active }}'
  - option: 'internet_accessible'
    value:  '{{ has_internet_connection }}'
  - option: 'gateway_ifcfg'
    value: '{{ has_ifcfg_gw }}'
  - option: 'detected_gateway'
    value: '{{ discovered_wan_iface }}'
  - option: 'prior_gateway'
    value: '{{ device_gw2 }}'
  - option: 'wireless_list_1'
    value: '{{ wifi1 }}'
  - option: 'wireless_list_2'
    value: '{{ wifi2 }}'
  - option: 'num_wifi_interfaces'
    value: '{{ num_wifi_interfaces }}'
  - option: 'discovered_wireless_iface'
    value: '{{ discovered_wireless_iface }}'
  - option: 'iiab_wireless_lan_iface'
    value: '{{ iiab_wireless_lan_iface }}'
  - option: 'num_lan_interfaces'
    value: '{{ num_lan_interfaces }}'
  - option: 'detected_lan'
    value: '{{ discovered_lan_iface }}'
  - option: 'static_wan'
    value: '{{ gui_static_wan }}'