---
- name: Determine removed users from previous export
  ansible.builtin.set_fact:
    _hysteria2_removed_users: >-
      {{
        (_hysteria2_saved_server_info.users | default([]) | map(attribute='name') | list)
        | difference(hysteria2_resolved_users | map(attribute='name') | list)
      }}
  delegate_to: localhost
  become: false

- name: Build list of export files to remove for deleted users
  ansible.builtin.set_fact:
    _hysteria2_removed_user_files: >-
      {{
        _hysteria2_removed_user_files | default([]) + [
          hysteria2_output_dir ~ '/' ~ hysteria2_output_name ~ '/' ~ item.0 ~ item.1
        ]
      }}
  loop: "{{ _hysteria2_removed_users | default([]) | product(_hysteria2_user_export_suffixes) | list }}"
  vars:
    _hysteria2_user_export_suffixes:
      - ".url"
      - ".txt"
      - ".qr.txt"
      - ".png"
  when: _hysteria2_removed_users | default([]) | length > 0
  delegate_to: localhost
  become: false

- name: Remove export files for deleted users
  ansible.builtin.file:
    path: "{{ item }}"
    state: absent
  loop: "{{ _hysteria2_removed_user_files | default([]) }}"
  delegate_to: localhost
  become: false
  when: _hysteria2_removed_user_files | default([]) | length > 0

- name: Check local URL files for resolved users
  ansible.builtin.stat:
    path: "{{ hysteria2_output_dir }}/{{ hysteria2_output_name }}/{{ item.name }}.url"
  loop: "{{ hysteria2_resolved_users }}"
  register: _hysteria2_url_file_stats
  delegate_to: localhost
  become: false

- name: Split users into full export and reuse existing export data
  ansible.builtin.set_fact:
    hysteria2_users_for_export: "{{ hysteria2_users_for_export | default([]) + ([item] if _needs_export else []) }}"
    hysteria2_users_for_reuse: "{{ hysteria2_users_for_reuse | default([]) + ([_reuse_entry] if not _needs_export else []) }}"
  loop: "{{ hysteria2_resolved_users }}"
  loop_control:
    label: "{{ item.name }}"
  vars:
    _saved_user: >-
      {{
        (_hysteria2_saved_server_info.users | default([])
        | selectattr('name', 'equalto', item.name)
        | list | first) | default({}, true)
      }}
    _url_stat: >-
      {{
        ((_hysteria2_url_file_stats.results
        | selectattr('item.name', 'equalto', item.name)
        | list | first).stat) | default({}, true)
      }}
    _needs_export: >-
      {{
        hysteria2_force_export | bool
        or (_saved_user | length == 0)
        or (item.password != (_saved_user.password | default('')))
        or (hysteria2_domain != (_hysteria2_saved_server_info.domain | default('')))
        or ((hysteria2_listen_port | string) != (_hysteria2_saved_server_info.port | default('') | string))
        or ((hysteria2_obfs_password | default('')) != (_hysteria2_saved_server_info.obfs_password | default('')))
        or not (_url_stat.exists | default(false))
      }}
    _reuse_entry:
      name: "{{ item.name }}"
      password: "{{ item.password }}"
      url: "{{ _saved_user.url }}"
      has_png: "{{ _saved_user.has_png | default(false) | bool }}"
  delegate_to: localhost
  become: false