- name: Configure local backup for Memos from memos-box
  hosts: lapy
  gather_facts: no
  vars_files:
    - ../../infra_vars.yml
    - ./memos_vars.yml
  vars:
    backup_data_path: "{{ memos_data_dir }}"

  tasks:
    - name: Debug remote backup vars
      debug:
        msg:
          - "backup_host={{ backup_host }}"
          - "backup_user={{ backup_user }}"
          - "backup_data_path='{{ backup_data_path }}'"
          - "local_backup_dir={{ local_backup_dir }}"

    - name: Ensure local backup directory exists
      file:
        path: "{{ local_backup_dir }}"
        state: directory
        mode: '0755'

    - name: Ensure ~/.local/bin exists
      file:
        path: "{{ lookup('env', 'HOME') }}/.local/bin"
        state: directory
        mode: '0755'

    - name: Create backup script
      copy:
        dest: "{{ backup_script_path }}"
        mode: '0750'
        content: |
          #!/bin/bash
          set -euo pipefail

          TIMESTAMP=$(date +'%Y-%m-%d')
          BACKUP_DIR="{{ local_backup_dir }}/$TIMESTAMP"
          mkdir -p "$BACKUP_DIR"

          {% if backup_key_file %}
          SSH_CMD="ssh -i {{ backup_key_file }} -p {{ backup_port }}"
          {% else %}
          SSH_CMD="ssh -p {{ backup_port }}"
          {% endif %}

          rsync -az -e "$SSH_CMD" --rsync-path="sudo rsync" --delete {{ backup_user }}@{{ backup_host }}:{{ backup_data_path }}/ "$BACKUP_DIR/"

          # Rotate old backups (keep 14 days)
          # Calculate cutoff date (14 days ago) and delete backups older than that
          CUTOFF_DATE=$(date -d '14 days ago' +'%Y-%m-%d')
          for dir in "{{ local_backup_dir }}"/20*; do
            if [ -d "$dir" ]; then
              dir_date=$(basename "$dir")
              if [ "$dir_date" != "$TIMESTAMP" ] && [ "$dir_date" \< "$CUTOFF_DATE" ]; then
                rm -rf "$dir"
              fi
            fi
          done

    - name: Ensure cronjob for backup exists
      cron:
        name: "Memos backup"
        user: "{{ lookup('env', 'USER') }}"
        job: "{{ backup_script_path }}"
        minute: 15
        hour: "9,12,15,18"

    - name: Run the backup script to make the first backup
      command: "{{ backup_script_path }}"

    - name: Verify backup was created
      block:
        - name: Get today's date
          command: date +'%Y-%m-%d'
          register: today_date
          changed_when: false

        - name: Check backup directory exists and contains files
          stat:
            path: "{{ local_backup_dir }}/{{ today_date.stdout }}"
          register: backup_dir_stat

        - name: Verify backup directory exists
          assert:
            that:
              - backup_dir_stat.stat.exists
              - backup_dir_stat.stat.isdir
            fail_msg: "Backup directory {{ local_backup_dir }}/{{ today_date.stdout }} was not created"
            success_msg: "Backup directory {{ local_backup_dir }}/{{ today_date.stdout }} exists"

        - name: Check if backup directory contains files
          find:
            paths: "{{ local_backup_dir }}/{{ today_date.stdout }}"
            recurse: yes
          register: backup_files

        - name: Verify backup directory is not empty
          assert:
            that:
              - backup_files.files | length > 0
            fail_msg: "Backup directory {{ local_backup_dir }}/{{ today_date.stdout }} exists but is empty"
            success_msg: "Backup directory contains {{ backup_files.files | length }} file(s)"