---
- name: Check for JDT LS
  ansible.builtin.stat:
    path: "{{ jdtls_install_dir }}/plugins"
  become: false
  register: jdtls_installed

- name: Create JDT LS target directories
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
    mode: "0755"
  loop:
    - "{{ jdtls_install_dir }}"
    - "{{ jdtls_bin_dir }}"
  become: false

- name: Download Eclipse JDT LS
  ansible.builtin.get_url:
    url: "{{ jdtls_url }}"
    dest: "{{ jdtls_archive }}"
    mode: "0644"
    force: "{{ jdtls_force_update }}"
    timeout: "{{ jdtls_download_timeout }}"
  register: jdtls_download
  until: jdtls_download is succeeded
  retries: "{{ jdtls_download_retries }}"
  delay: "{{ jdtls_download_delay }}"
  when: jdtls_force_update or not jdtls_installed.stat.exists

- name: Remove existing JDT LS install when forced
  ansible.builtin.file:
    path: "{{ jdtls_install_dir }}"
    state: absent
  become: false
  when: jdtls_force_update and jdtls_installed.stat.exists

- name: Recreate JDT LS install directory
  ansible.builtin.file:
    path: "{{ jdtls_install_dir }}"
    state: directory
    mode: "0755"
  become: false
  when: jdtls_force_update and jdtls_installed.stat.exists

- name: Extract Eclipse JDT LS
  ansible.builtin.unarchive:
    src: "{{ jdtls_archive }}"
    dest: "{{ jdtls_install_dir }}"
    remote_src: true
  become: false
  when: jdtls_force_update or not jdtls_installed.stat.exists

- name: Check for bundled JDT LS launcher
  ansible.builtin.stat:
    path: "{{ jdtls_install_dir }}/bin/jdtls"
  become: false
  register: jdtls_bundled_launcher

- name: Link bundled JDT LS launcher onto the user PATH
  ansible.builtin.file:
    src: "{{ jdtls_install_dir }}/bin/jdtls"
    dest: "{{ jdtls_bin_dir }}/jdtls"
    state: link
    force: true
  become: false
  when: jdtls_bundled_launcher.stat.exists

- name: Create fallback JDT LS launcher
  ansible.builtin.copy:
    dest: "{{ jdtls_bin_dir }}/jdtls"
    mode: "0755"
    content: |
      #!/bin/bash
      set -euo pipefail

      JDTLS_HOME="{{ jdtls_install_dir }}"
      LAUNCHER_JAR=$(find "$JDTLS_HOME/plugins" -name "org.eclipse.equinox.launcher_*.jar" | sort | tail -n 1)

      exec java \
        -Declipse.application=org.eclipse.jdt.ls.core.id1 \
        -Dosgi.bundles.defaultStartLevel=4 \
        -Declipse.product=org.eclipse.jdt.ls.core.product \
        -Dlog.protocol=true \
        -Dlog.level=ALL \
        -Xmx1G \
        --add-modules=ALL-SYSTEM \
        --add-opens java.base/java.util=ALL-UNNAMED \
        --add-opens java.base/java.lang=ALL-UNNAMED \
        -jar "$LAUNCHER_JAR" \
        -configuration "$JDTLS_HOME/config_linux" \
        -data "$PWD/.jdtls-workspace" \
        "$@"
  become: false
  when: not jdtls_bundled_launcher.stat.exists

- name: Remove downloaded JDT LS archive
  ansible.builtin.file:
    path: "{{ jdtls_archive }}"
    state: absent