---
- name: Installation et configuration du frontend et backend
  hosts: nginx
  become: true
  gather_facts: true

  tasks:
      - name: Update and upgrade
        ansible.builtin.apt:
            update_cache: yes
            cache_valid_time: 3600
            upgrade: "dist"

      - name: install basic dependencies
        ansible.builtin.apt:
            name:
                - curl
                - wget
                - tar
                - rsync
                - acl
            state: present
            update_cache: yes

      - name: Download Go 1.23.0 tarball
        ansible.builtin.get_url:
            url: https://dl.google.com/go/go1.23.0.linux-amd64.tar.gz
            dest: /tmp/go1.23.0.linux-amd64.tar.gz
            mode: "0644"

      - name: Extract Go 1.23.0
        ansible.builtin.unarchive:
            src: /tmp/go1.23.0.linux-amd64.tar.gz
            dest: /usr/local
            remote_src: yes

      - name: Ensure Go 1.23 is in PATH for all users
        ansible.builtin.lineinfile:
            path: /etc/profile.d/go.sh
            line: "export PATH=/usr/local/go/bin:$PATH"
            create: yes
            state: present
            mode: "0644"

      - name: Setup Node.js 20 repository
        ansible.builtin.shell: |
            curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
        args:
            executable: /bin/bash

      - name: Install Node.js 20
        ansible.builtin.apt:
            name: nodejs
            state: present
            update_cache: yes
            dpkg_options: "force-overwrite"

      - name: Check Node.js, npm and Go versions
        ansible.builtin.shell: |
            echo "Node: $(node -v)"
            echo "npm: $(npm -v)"
            echo "Go: $(go version)"
        register: versions_check
        changed_when: false
        failed_when: versions_check.rc != 0

      - name: Display all versions
        ansible.builtin.debug:
            msg: "{{ versions_check.stdout_lines }}"

      # ============================================
      # FRONTEND
      # ============================================

      - name: Create /var/www if not exists
        ansible.builtin.file:
            path: /var/www
            state: directory
            owner: root
            group: root
            mode: "0755"

      - name: Ensure /home/ubuntu exists with correct permissions
        ansible.builtin.file:
            path: /home/ubuntu
            state: directory
            owner: "{{ user_deploy }}"
            group: "{{ user_deploy }}"
            mode: "0755"

      - name: Remove old frontend directory if exists
        ansible.builtin.file:
            path: "{{ nginx_frontend_path }}"
            state: absent

      - name: Create frontend directory with deploy user ownership
        ansible.builtin.file:
            path: "{{ nginx_frontend_path }}"
            state: directory
            owner: "{{ user_deploy }}"
            group: "{{ user_deploy }}"
            mode: "0755"

      - name: Synchronize frontend content (excluding node_modules and .git)
        ansible.builtin.synchronize:
            src: ../frontend/
            dest: "{{ nginx_frontend_path }}/"
            rsync_opts:
                - "--exclude=node_modules"
                - "--exclude=.git"
                - "--exclude=dist"
                - "--exclude=build"
            delete: no
            recursive: yes
        tags:
            - syncro

      - name: Install npm dependencies as deploy user
        become_user: "{{ user_deploy }}"
        ansible.builtin.shell: |
            export PATH=/usr/local/go/bin:$PATH
            npm install
            npm run build
        args:
            chdir: "{{ nginx_frontend_path }}"
            executable: /bin/bash

      - name: Set ownership to www-data for runtime
        ansible.builtin.file:
            path: "{{ nginx_frontend_path }}"
            owner: "{{ user_web }}"
            group: "{{ user_web }}"
            mode: "0755"
            recurse: yes

      # ============================================
      # BACKEND
      # ============================================

      - name: Remove old backend directory if exists
        ansible.builtin.file:
            path: "{{ backend_dir }}"
            state: absent

      - name: Create backend directory with deploy user ownership
        ansible.builtin.file:
            path: "{{ backend_dir }}"
            state: directory
            owner: "{{ user_deploy }}"
            group: "{{ user_deploy }}"
            mode: "0755"

      - name: Copy backend files
        ansible.builtin.copy:
            src: "../backendprod/gestion/"
            dest: "{{ backend_dir }}/"
            owner: "{{ user_deploy }}"
            group: "{{ user_deploy }}"
            mode: preserve
            directory_mode: "0755"

      - name: Compile backend as deploy user
        become_user: "{{ user_deploy }}"
        ansible.builtin.shell: |
            export PATH=/usr/local/go/bin:$PATH
            go mod tidy
            go build -o main .
        args:
            chdir: "{{ backend_dir }}"
            executable: /bin/bash
        tags:
            - compile
      - name: Set ownership to www-data for runtime
        ansible.builtin.file:
            path: "{{ backend_dir }}"
            owner: "{{ user_web }}"
            group: "{{ user_web }}"
            mode: "0755"
            recurse: yes

      - name: Set executable permission on backend binary
        ansible.builtin.file:
            path: "{{ backend_binary }}"
            owner: "{{ user_web }}"
            group: "{{ user_web }}"
            mode: "0755"

      # ============================================
      # SYSTEMD SERVICES
      # ============================================

      - name: Create systemd service for backend
        ansible.builtin.template:
            src: ./templates/backend.service.j2
            dest: /etc/systemd/system/backend.service
            owner: root
            group: root
            mode: "0644"

      - name: Reload systemd daemon
        ansible.builtin.systemd:
            daemon_reload: yes

      - name: Enable and restart frontend service
        ansible.builtin.systemd:
            name: frontend
            enabled: yes
            state: restarted

      - name: Enable and restart backend service
        ansible.builtin.systemd:
            name: backend
            enabled: yes
            state: restarted

      - name: Wait for backend to be ready
        ansible.builtin.wait_for:
            port: "{{ backend_port }}"
            delay: 2
            timeout: 30

      - name: Display service status
        ansible.builtin.shell: |
            echo "=== Frontend Service ==="
            systemctl status frontend --no-pager || true
            echo ""
            echo "=== Backend Service ==="
            systemctl status backend --no-pager || true
        register: service_status
        changed_when: false

      - name: Show service status
        ansible.builtin.debug:
            msg: "{{ service_status.stdout_lines }}"