✏️ Editing: GeneratorTrait.php

<?php

declare(strict_types=1);

/**
 * This file is part of CodeIgniter 4 framework.
 *
 * (c) CodeIgniter Foundation <admin@codeigniter.com>
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace CodeIgniter\CLI;

use Config\Generators;
use Throwable;

/**
 * GeneratorTrait contains a collection of methods
 * to build the commands that generates a file.
 */
trait GeneratorTrait
{
    /**
     * Component Name
     *
     * @var string
     */
    protected $component;

/**
     * File directory
     *
     * @var string
     */
    protected $directory;

/**
     * (Optional) View template path
     *
     * We use special namespaced paths like:
     *      `CodeIgniter\Commands\Generators\Views\cell.tpl.php`.
     */
    protected ?string $templatePath = null;

/**
     * View template name for fallback
     *
     * @var string
     */
    protected $template;

/**
     * Language string key for required class names.
     *
     * @var string
     */
    protected $classNameLang = '';

/**
     * Namespace to use for class.
     * Leave null to use the default namespace.
     */
    protected ?string $namespace = null;

/**
     * Whether to require class name.
     *
     * @internal
     *
     * @var bool
     */
    private $hasClassName = true;

/**
     * Whether to sort class imports.
     *
     * @internal
     *
     * @var bool
     */
    private $sortImports = true;

/**
     * Whether the `--suffix` option has any effect.
     *
     * @internal
     *
     * @var bool
     */
    private $enabledSuffixing = true;

/**
     * The params array for easy access by other methods.
     *
     * @internal
     *
     * @var array<int|string, string|null>
     */
    private $params = [];

/**
     * Execute the command.
     *
     * @param array<int|string, string|null> $params
     *
     * @deprecated use generateClass() instead
     */
    protected function execute(array $params): void
    {
        $this->generateClass($params);
    }

/**
     * Generates a class file from an existing template.
     *
     * @param array<int|string, string|null> $params
     */
    protected function generateClass(array $params): void
    {
        $this->params = $params;

// Get the fully qualified class name from the input.
        $class = $this->qualifyClassName();

// Get the file path from class name.
        $target = $this->buildPath($class);

// Check if path is empty.
        if ($target === '') {
            return;
        }

$this->generateFile($target, $this->buildContent($class));
    }

/**
     * Generate a view file from an existing template.
     *
     * @param string                         $view   namespaced view name that is generated
     * @param array<int|string, string|null> $params
     */
    protected function generateView(string $view, array $params): void
    {
        $this->params = $params;

$target = $this->buildPath($view);

// Check if path is empty.
        if ($target === '') {
            return;
        }

$this->generateFile($target, $this->buildContent($view));
    }

/**
     * Handles writing the file to disk, and all of the safety checks around that.
     *
     * @param string $target file path
     */
    private function generateFile(string $target, string $content): void
    {
        if ($this->getOption('namespace') === 'CodeIgniter') {
            // @codeCoverageIgnoreStart
            CLI::write(lang('CLI.generator.usingCINamespace'), 'yellow');
            CLI::newLine();

if (
                CLI::prompt(
                    'Are you sure you want to continue?',
                    ['y', 'n'],
                    'required'
                ) === 'n'
            ) {
                CLI::newLine();
                CLI::write(lang('CLI.generator.cancelOperation'), 'yellow');
                CLI::newLine();

return;
            }

CLI::newLine();
            // @codeCoverageIgnoreEnd
        }

$isFile = is_file($target);

// Overwriting files unknowingly is a serious annoyance, So we'll check if
        // we are duplicating things, If 'force' option is not supplied, we bail.
        if (! $this->getOption('force') && $isFile) {
            CLI::error(
                lang('CLI.generator.fileExist', [clean_path($target)]),
                'light_gray',
                'red'
            );
            CLI::newLine();

return;
        }

// Check if the directory to save the file is existing.
        $dir = dirname($target);

if (! is_dir($dir)) {
            mkdir($dir, 0755, true);
        }

helper('filesystem');

// Build the class based on the details we have, We'll be getting our file
        // contents from the template, and then we'll do the necessary replacements.
        if (! write_file($target, $content)) {
            // @codeCoverageIgnoreStart
            CLI::error(
                lang('CLI.generator.fileError', [clean_path($target)]),
                'light_gray',
                'red'
            );
            CLI::newLine();

return;
            // @codeCoverageIgnoreEnd
        }

if ($this->getOption('force') && $isFile) {
            CLI::write(
                lang('CLI.generator.fileOverwrite', [clean_path($target)]),
                'yellow'
            );
            CLI::newLine();

return;
        }

CLI::write(
            lang('CLI.generator.fileCreate', [clean_path($target)]),
            'green'
        );
        CLI::newLine();
    }

/**
     * Prepare options and do the necessary replacements.
     *
     * @param string $class namespaced classname or namespaced view.
     *
     * @return string generated file content
     */
    protected function prepare(string $class): string
    {
        return $this->parseTemplate($class);
    }

/**
     * Change file basename before saving.
     *
     * Useful for components where the file name has a date.
     */
    protected function basename(string $filename): string
    {
        return basename($filename);
    }

/**
     * Parses the class name and checks if it is already qualified.
     */
    protected function qualifyClassName(): string
    {
        $class = $this->normalizeInputClassName();

// Gets the namespace from input. Don't forget the ending backslash!
        $namespace = $this->getNamespace() . '\\';

if (str_starts_with($class, $namespace)) {
            return $class; // @codeCoverageIgnore
        }

$directoryString = ($this->directory !== null) ? $this->directory . '\\' : '';

return $namespace . $directoryString . str_replace('/', '\\', $class);
    }

/**
     * Normalize input classname.
     */
    private function normalizeInputClassName(): string
    {
        // Gets the class name from input.
        $class = $this->params[0] ?? CLI::getSegment(2);

if ($class === null && $this->hasClassName) {
            // @codeCoverageIgnoreStart
            $nameLang = $this->classNameLang !== ''
                ? $this->classNameLang
                : 'CLI.generator.className.default';
            $class = CLI::prompt(lang($nameLang), null, 'required');
            CLI::newLine();
            // @codeCoverageIgnoreEnd
        }

helper('inflector');

$component = singular($this->component);

/**
         * @see https://regex101.com/r/a5KNCR/2
         */
        $pattern = sprintf('/([a-z][a-z0-9_\/\\\\]+)(%s)$/i', $component);

if (preg_match($pattern, $class, $matches) === 1) {
            $class = $matches[1] . ucfirst($matches[2]);
        }

if (
            $this->enabledSuffixing && $this->getOption('suffix')
            && preg_match($pattern, $class) !== 1
        ) {
            $class .= ucfirst($component);
        }

// Trims input, normalize separators, and ensure that all paths are in Pascalcase.
        return ltrim(
            implode(
                '\\',
                array_map(
                    pascalize(...),
                    explode('\\', str_replace('/', '\\', trim($class)))
                )
            ),
            '\\/'
        );
    }

/**
     * Gets the generator view as defined in the `Config\Generators::$views`,
     * with fallback to `$template` when the defined view does not exist.
     *
     * @param array<string, mixed> $data
     */
    protected function renderTemplate(array $data = []): string
    {
        try {
            $template = $this->templatePath ?? config(Generators::class)->views[$this->name];

return view($template, $data, ['debug' => false]);
        } catch (Throwable $e) {
            log_message('error', (string) $e);

return view(
                "CodeIgniter\\Commands\\Generators\\Views\\{$this->template}",
                $data,
                ['debug' => false]
            );
        }
    }

/**
     * Performs pseudo-variables contained within view file.
     *
     * @param string                          $class   namespaced classname or namespaced view.
     * @param list<string>                    $search
     * @param list<string>                    $replace
     * @param array<string, bool|string|null> $data
     *
     * @return string generated file content
     */
    protected function parseTemplate(
        string $class,
        array $search = [],
        array $replace = [],
        array $data = []
    ): string {
        // Retrieves the namespace part from the fully qualified class name.
        $namespace = trim(
            implode(
                '\\',
                array_slice(explode('\\', $class), 0, -1)
            ),
            '\\'
        );
        $search[]  = '<@php';
        $search[]  = '{namespace}';
        $search[]  = '{class}';
        $replace[] = '<?php';
        $replace[] = $namespace;
        $replace[] = str_replace($namespace . '\\', '', $class);

return str_replace($search, $replace, $this->renderTemplate($data));
    }

/**
     * Builds the contents for class being generated, doing all
     * the replacements necessary, and alphabetically sorts the
     * imports for a given template.
     */
    protected function buildContent(string $class): string
    {
        $template = $this->prepare($class);

if (
            $this->sortImports
            && preg_match(
                '/(?P<imports>(?:^use [^;]+;$\n?)+)/m',
                $template,
                $match
            )
        ) {
            $imports = explode("\n", trim($match['imports']));
            sort($imports);

return str_replace(trim($match['imports']), implode("\n", $imports), $template);
        }

return $template;
    }

/**
     * Builds the file path from the class name.
     *
     * @param string $class namespaced classname or namespaced view.
     */
    protected function buildPath(string $class): string
    {
        $namespace = $this->getNamespace();

// Check if the namespace is actually defined and we are not just typing gibberish.
        $base = service('autoloader')->getNamespace($namespace);

if (! $base = reset($base)) {
            CLI::error(
                lang('CLI.namespaceNotDefined', [$namespace]),
                'light_gray',
                'red'
            );
            CLI::newLine();

return '';
        }

$realpath = realpath($base);
        $base     = ($realpath !== false) ? $realpath : $base;

$file = $base . DIRECTORY_SEPARATOR
            . str_replace(
                '\\',
                DIRECTORY_SEPARATOR,
                trim(str_replace($namespace . '\\', '', $class), '\\')
            ) . '.php';

return implode(
            DIRECTORY_SEPARATOR,
            array_slice(
                explode(DIRECTORY_SEPARATOR, $file),
                0,
                -1
            )
        ) . DIRECTORY_SEPARATOR . $this->basename($file);
    }

/**
     * Gets the namespace from the command-line option,
     * or the default namespace if the option is not set.
     * Can be overridden by directly setting $this->namespace.
     */
    protected function getNamespace(): string
    {
        return $this->namespace ?? trim(
            str_replace(
                '/',
                '\\',
                $this->getOption('namespace') ?? APP_NAMESPACE
            ),
            '\\'
        );
    }

/**
     * Allows child generators to modify the internal `$hasClassName` flag.
     *
     * @return $this
     */
    protected function setHasClassName(bool $hasClassName)
    {
        $this->hasClassName = $hasClassName;

return $this;
    }

/**
     * Allows child generators to modify the internal `$sortImports` flag.
     *
     * @return $this
     */
    protected function setSortImports(bool $sortImports)
    {
        $this->sortImports = $sortImports;

return $this;
    }

/**
     * Allows child generators to modify the internal `$enabledSuffixing` flag.
     *
     * @return $this
     */
    protected function setEnabledSuffixing(bool $enabledSuffixing)
    {
        $this->enabledSuffixing = $enabledSuffixing;

return $this;
    }

/**
     * Gets a single command-line option. Returns TRUE if the option exists,
     * but doesn't have a value, and is simply acting as a flag.
     */
    protected function getOption(string $name): bool|string|null
    {
        if (! array_key_exists($name, $this->params)) {
            return CLI::getOption($name);
        }

return $this->params[$name] ?? true;
    }
}

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