main.yml

---

- name: Split input into the two parts
  ansible.builtin.set_fact:
    boxes_view: "{{ day5_input | split('\n\n') | first }}"
    procedure: "{{ day5_input | split('\n\n') | last  }}"

- name: Split procedure into instructions
  ansible.builtin.set_fact:
    instructions: "{{ procedure | split('\n') | reject('equalto', '') | list}}"

- name: Split boxes view into boxes and instructions
  ansible.builtin.set_fact:
    # Boxes should be all rows except the lsat
    boxes: "{{ boxes_view | split('\n') | json_query('[:-1]') }}"
    indexes: "{{ boxes_view | split('\n') | last }}"

- name: Get the box indexes
  ansible.builtin.set_fact:
    box_index: "{{ indexes | trim | split('   ') | map('int') | list }}"

- name: Split boxes into arrays
  ansible.builtin.set_fact:
    box_rows: "{{ box_rows | default([]) + [item | replace('    ', '[|] ') | split(']') | map('trim') | map('replace', '[', '') | list | json_query('[:-1]')] }}"
  loop: "{{ boxes }}"

- name: Create stacks
  tags: part1
  ansible.builtin.include_tasks: "stacks.yml"

- name: Loop over all instructions
  tags: part1
  ansible.builtin.include_tasks: "inner.yml"
  vars:
    instruction_full: "{{ item }}"
    nums: "{{ instruction | regex_findall('[0-9]+') | map('int') }}"
    amount: "{{ nums[0] }}"
    move_from: "{{ nums[1] | int - 1 }}"
    move_to: "{{ nums[2] | int - 1 }}"
    reverse: true
  loop: "{{ instructions }}"
  loop_control:
    loop_var: instruction
    index_var: instruction_index

- name: ANSWER TO PART 1 | Get the top box of every stack
  tags: part1
  ansible.builtin.debug:
    msg: "{% for i in stacks %}{{ i[0] }}{% endfor %}"

- name: Reset stacks variable
  tags: part2
  ansible.builtin.set_fact:
    stacks: []

- name: Recreate stacks
  tags: part2
  ansible.builtin.include_tasks: "stacks.yml"

- name: Loop over all instructions but don't reverse new boxes
  tags: part2
  ansible.builtin.include_tasks: "inner.yml"
  vars:
    instruction_full: "{{ item }}"
    nums: "{{ instruction | regex_findall('[0-9]+') | map('int') }}"
    amount: "{{ nums[0] }}"
    move_from: "{{ nums[1] | int - 1 }}"
    move_to: "{{ nums[2] | int - 1 }}"
    reverse: false
  loop: "{{ instructions }}"
  loop_control:
    loop_var: instruction
    index_var: instruction_index

- name: ANSWER TO PART 2 | Get the top box of every stack
  tags: part2
  ansible.builtin.debug:
    msg: "{% for i in stacks %}{{ i[0] }}{% endfor %}"