// General setup for NVM and Node.js.
// NVM (Node Version Manager) is sourced to manage Node.js versions.
// The `use_nvm` command ensures NVM is sourced and Node.js is available.
set('nvm', 'source $HOME/.nvm/nvm.sh');
set('use_nvm', function () {
    return '{{nvm}} && node --version';
});

// Define tasks to run after the 'deploy:update_code' step.
after('deploy:update_code', [
    'nvm:install',      // Install Node.js using NVM.
    'corepack:enable',  // Enable Corepack and prepare Yarn.
    'yarn:install',     // Install project dependencies using Yarn.
    'yarn:build',       // Build the project using Yarn.
]);

// Task: Install the required Node.js version using NVM.
task('nvm:install', function () {
    cd('{{release_or_current_path}}');
    run('{{use_nvm}} && nvm install');
});

// Task: Enable Corepack and prepare Yarn.
task('corepack:enable', function () {
    cd('{{release_or_current_path}}');
    run('{{use_nvm}} && corepack enable && corepack prepare yarn@stable --activate');
});

// Task: Install project dependencies using Yarn.
// If a previous release exists, reuse its `node_modules` to save time.
task('yarn:install', function () {
    if (has('previous_release')) {
        if (test('[ -d {{previous_release}}/node_modules ]')) {
            run('cp -R {{previous_release}}/node_modules {{release_path}}');
        }
    }
    cd('{{release_or_current_path}}');
    run('{{use_nvm}} && yarn install --immutable');
});

// Task: Build the project using Yarn.
task('yarn:build', function () {
    cd('{{release_or_current_path}}');
    run('{{use_nvm}} && yarn build');
});