---
- name: Install GNU Taler merchant packages
  ansible.builtin.apt:
    name:
      - taler-merchant
      - taler-merchant-httpd
      - taler-merchant-db
    state: present

- name: Ensure merchant runtime paths exist
  ansible.builtin.file:
    path: "{{ item.path }}"
    state: directory
    owner: "{{ item.owner }}"
    group: "{{ item.group }}"
    mode: "{{ item.mode }}"
  loop:
    - { path: /etc/taler, owner: root, group: root, mode: "0755" }
    - { path: /etc/taler/merchant.d, owner: root, group: root, mode: "0750" }
    - { path: /run/taler, owner: taler-merchant, group: taler-merchant, mode: "0770" }

- name: Deploy merchant configuration
  ansible.builtin.template:
    src: merchant.conf.j2
    dest: /etc/taler/merchant.conf
    owner: root
    group: taler-merchant
    mode: "0640"
  notify:
    - Restart taler-merchant-backend

- name: Initialize merchant database
  ansible.builtin.command:
    cmd: taler-merchant-dbinit
  register: merchant_dbinit
  changed_when: "'already initialized' not in merchant_dbinit.stdout"
  failed_when: merchant_dbinit.rc not in [0]
  become: true
  become_user: taler-merchant

- name: Ensure taler-merchant-backend service enabled
  ansible.builtin.service:
    name: taler-merchant-backend
    state: started
    enabled: true

- name: Validate merchant configuration currency
  ansible.builtin.command:
    cmd: taler-config -c /etc/taler/merchant.conf -s merchant-exchange-{{ taler_config.currency | lower }} -o CURRENCY
  register: merchant_config_currency
  changed_when: false

- name: Assert merchant currency matches exchange currency
  ansible.builtin.assert:
    that:
      - merchant_config_currency.stdout.strip() == taler_config.currency
    fail_msg: "Merchant currency mismatch. Expected {{ taler_config.currency }}."

- name: Validate merchant exchange base URL
  ansible.builtin.command:
    cmd: taler-config -c /etc/taler/merchant.conf -s merchant-exchange-{{ taler_config.currency | lower }} -o EXCHANGE_BASE_URLS
  register: merchant_exchange_urls
  changed_when: false

- name: Assert merchant exchange URL matches configuration
  ansible.builtin.assert:
    that:
      - merchant_exchange_urls.stdout.strip().split()[0] == "https://{{ taler_config.exchange_host }}/"
    fail_msg: "Merchant exchange URL mismatch. Expected https://{{ taler_config.exchange_host }}/."