---
# Migrate devices from Prezenta app to WMT
# ──────────────────────────────────────────────────────────────────────────
# What this playbook does (in order):
#
#   1. Create /home/pi/Desktop/WMT on the target
#   2. Copy /home/pi/Desktop/WMT_project from the CONTROLLER to /home/pi/Desktop/WMT on the target
#   3. Read /home/pi/Desktop/Prezenta/data/idmasa.txt from the target
#   4. Write that value as work_place in WMT/data/config.txt (replaces notconfig)
#   5. Update ~/.config/wayfire.ini [autostart] start_python to launch from WMT
#   6. Rename /home/pi/Desktop/Prezenta → /home/pi/Desktop/Prezenta_Old_Data
#   7. Reboot the host
#
# Run via: Ansible > Playbooks > "Migrate to WMT" or POST /api/ansible/execute
# ──────────────────────────────────────────────────────────────────────────

- name: Migrate devices from Prezenta to WMT
  hosts: all
  gather_facts: false
  become: false

  tasks:

    # ── 1. Ensure destination directory exists ────────────────────────────
    - name: Create WMT directory on target
      file:
        path: /home/pi/Desktop/WMT
        state: directory
        owner: pi
        group: pi
        mode: '0755'

    # ── 2. Copy WMT_project from controller → target as WMT ──────────────
    - name: Copy WMT_project folder to target as /home/pi/Desktop/WMT
      copy:
        src: /home/pi/Desktop/WMT_project/
        dest: /home/pi/Desktop/WMT/
        owner: pi
        group: pi
        mode: preserve
        force: true

    # ── 3. Ensure WMT data directory exists (in case config.txt is missing)
    - name: Ensure WMT/data directory exists
      file:
        path: /home/pi/Desktop/WMT/data
        state: directory
        owner: pi
        group: pi
        mode: '0755'

    # ── 4. Read idmasa.txt from the Prezenta data folder ─────────────────
    - name: Read idmasa.txt from Prezenta
      slurp:
        src: /home/pi/Desktop/Prezenta/data/idmasa.txt
      register: idmasa_raw

    - name: Decode idmasa value
      set_fact:
        work_place_value: "{{ (idmasa_raw.content | b64decode).strip() }}"

    - name: Show detected work_place value
      debug:
        msg: "work_place will be set to: '{{ work_place_value }}'"

    # ── 5. Ensure config.txt has a [device] section with work_place ───────
    - name: Ensure [device] section exists in config.txt
      ini_file:
        path: /home/pi/Desktop/WMT/data/config.txt
        section: device
        option: work_place
        value: "{{ work_place_value }}"
        backup: true
        create: true
        owner: pi
        group: pi
        mode: '0644'

    # ── 6. Update wayfire.ini autostart to launch from WMT ───────────────
    - name: Update wayfire.ini start_python path from Prezenta to WMT
      lineinfile:
        path: /home/pi/.config/wayfire.ini
        regexp: "^start_python\\s*=.*"
        line: "start_python = lxterminal -e \"bash -c 'cd /home/pi/Desktop/WMT; python3 app.py; exec bash'\""
        backrefs: false
        backup: true

    - name: Confirm wayfire.ini change
      command: grep "start_python" /home/pi/.config/wayfire.ini
      register: wayfire_check
      changed_when: false

    - name: Show wayfire.ini start_python line
      debug:
        msg: "{{ wayfire_check.stdout }}"

    # ── 7. Rename Prezenta → Prezenta_Old_Data ────────────────────────────
    - name: Check if Prezenta folder exists
      stat:
        path: /home/pi/Desktop/Prezenta
      register: prezenta_stat

    - name: Check if Prezenta_Old_Data already exists
      stat:
        path: /home/pi/Desktop/Prezenta_Old_Data
      register: prezenta_old_stat

    - name: Rename Prezenta to Prezenta_Old_Data
      command: mv /home/pi/Desktop/Prezenta /home/pi/Desktop/Prezenta_Old_Data
      when:
        - prezenta_stat.stat.exists
        - not prezenta_old_stat.stat.exists

    - name: Warn if Prezenta_Old_Data already exists (rename skipped)
      debug:
        msg: "⚠ Prezenta_Old_Data already exists — rename skipped to avoid overwrite."
      when: prezenta_old_stat.stat.exists

    # ── 8. Reboot ─────────────────────────────────────────────────────────
    - name: Reboot host to apply all changes
      become: true
      reboot:
        msg: "Rebooting after WMT migration"
        reboot_timeout: 180
        pre_reboot_delay: 3
        post_reboot_delay: 15