blueprint:
  name: Dynamic Medication Reminder via NFC
  description: Tracks medication intake via NFC scan, auto-detects user or uses manual selection, and sends reminders after a flexible interval.
  domain: automation
  input:
    medication_name:
      name: Medication Name
      selector:
        text:
    nfc_tag_id:
      name: NFC Tag ID
      selector:
        text:
    reminder_delay:
      name: Reminder Interval
      selector:
        number:
          min: 1
          max: 168
    reminder_unit:
      name: Time Unit
      selector:
        select:
          options:
            - Hours
            - Days
    person_selector:
      name: input_select for manual person selection
      selector:
        entity:
          domain: input_select
    user_id_map:
      name: User ID to Person Name Map
      selector:
        object:

trigger:
  - platform: event
    event_type: tag_scanned
    event_data:
      tag_id: !input nfc_tag_id

variables:
  scanned_user_id: "{{ trigger.context.user_id }}"
  selected_person: "{{ states(!input.person_selector) | lower }}"
  person: >
    {% set map = !input.user_id_map %}
    {% if scanned_user_id in map %}
      {{ map[scanned_user_id] | lower }}
    {% else %}
      {{ selected_person }}
    {% endif %}
  delay_seconds: >
    {% if !input.reminder_unit == 'Days' %}
      {{ ( !input.reminder_delay | int ) * 86400 }}
    {% else %}
      {{ ( !input.reminder_delay | int ) * 3600 }}
    {% endif %}
  datetime_entity: "input_datetime.medication_{{ person }}"
  notify_service: "notify.mobile_app_{{ person }}"

action:
  - service: input_datetime.set_datetime
    target:
      entity_id: "{{ datetime_entity }}"
    data:
      timestamp: "{{ now().timestamp() }}"
  - delay:
      seconds: "{{ delay_seconds }}"
  - service: "{{ notify_service }}"
    data:
      message: "{{ !input.medication_name }} is due again for {{ person | title }}."

  - service: input_select.select_option
    target:
      entity_id: !input.person_selector
    data:
      option: "No selection"