<?php

namespace App\RSpade\CodeQuality\Rules\Jqhtml;

use App\RSpade\CodeQuality\Rules\CodeQualityRule_Abstract;
use App\RSpade\Core\Manifest\Manifest;

/**
 * JQHTML Component Naming Rule
 *
 * Enforces that all jqhtml component names start with an uppercase letter.
 * This is a hard requirement of the jqhtml library.
 */
class JqhtmlComponentNaming_CodeQualityRule extends CodeQualityRule_Abstract
{
    /**
     * Get the unique identifier for this rule
     */
    public function get_id(): string
    {
        return 'JQHTML-NAMING-01';
    }

    /**
     * Get the human-readable name of this rule
     */
    public function get_name(): string
    {
        return 'JQHTML Component Names Must Start Uppercase';
    }

    /**
     * Get the description of what this rule checks
     */
    public function get_description(): string
    {
        return 'Ensures all jqhtml component names start with an uppercase letter (library requirement)';
    }

    /**
     * Get file patterns this rule should check
     */
    public function get_file_patterns(): array
    {
        return ['*.jqhtml', '*.js'];
    }

    /**
     * This rule should run at manifest-time for immediate feedback
     * since incorrect naming would break the jqhtml library
     */
    public function is_called_during_manifest_scan(): bool
    {
        return true; // Critical library requirement
    }

    /**
     * Check the file for violations
     */
    public function check(string $file_path, string $contents, array $metadata = []): void
    {
        // Check .jqhtml files for Define: tags
        if (str_ends_with($file_path, '.jqhtml')) {
            $this->check_jqhtml_file($file_path, $contents);
        }

        // Check .js files for classes extending Component
        if (str_ends_with($file_path, '.js')) {
            $this->check_javascript_file($file_path, $contents, $metadata);
        }
    }

    /**
     * Check jqhtml template files
     */
    private function check_jqhtml_file(string $file_path, string $contents): void
    {
        $lines = explode("\n", $contents);
        $line_number = 0;

        foreach ($lines as $line) {
            $line_number++;

            // Look for <Define:ComponentName> tags
            if (preg_match('/<Define:([a-zA-Z_][a-zA-Z0-9_]*)>/', $line, $matches)) {
                $component_name = $matches[1];

                // Check if first character is not uppercase
                if (!ctype_upper($component_name[0])) {
                    $this->add_violation(
                        $file_path,
                        $line_number,
                        "JQHTML component name '{$component_name}' must start with an uppercase letter",
                        trim($line),
                        "Change '{$component_name}' to '" . ucfirst($component_name) . "'. This is a hard requirement of the jqhtml library - component names MUST start with an uppercase letter.",
                        'critical'
                    );
                }
            }
        }
    }

    /**
     * Check JavaScript files for Component subclasses
     */
    private function check_javascript_file(string $file_path, string $contents, array $metadata = []): void
    {
        $lines = explode("\n", $contents);
        $line_number = 0;

        // Get JavaScript class from manifest metadata
        $js_classes = [];
        if (isset($metadata['class']) && isset($metadata['extension']) && $metadata['extension'] === 'js') {
            $js_classes = [$metadata['class']];
        }

        // If no classes in metadata, nothing to check for class definitions
        if (!empty($js_classes)) {
            // Find line numbers for each class
            $class_definitions = [];
            foreach ($js_classes as $class_name) {
                // Find where this class is defined in the source
                foreach ($lines as $idx => $line) {
                    if (preg_match('/class\s+' . preg_quote($class_name, '/') . '\s+/', $line)) {
                        $class_definitions[$class_name] = $idx + 1;
                        break;
                    }
                }
            }

            // Check each class to see if it's a JQHTML component
            foreach ($class_definitions as $class_name => $line_num) {
                // Use Manifest to check if this is a JQHTML component (handles indirect inheritance)
                if (Manifest::js_is_subclass_of($class_name, 'Component')) {
                    // Check if first character is not uppercase
                    if (!ctype_upper($class_name[0])) {
                        $this->add_violation(
                            $file_path,
                            $line_num,
                            "JQHTML component class '{$class_name}' must start with an uppercase letter",
                            trim($lines[$line_num - 1]),
                            "Change '{$class_name}' to '" . ucfirst($class_name) . "'. This is a hard requirement of the jqhtml library - component names MUST start with an uppercase letter.",
                            'critical'
                        );
                    }
                }
            }
        }

        // Still check for component registration patterns
        foreach ($lines as $line) {
            $line_number++;

            // Also check for component registration patterns
            if (preg_match('/jqhtml\.component\([\'"]([a-zA-Z_][a-zA-Z0-9_]*)[\'"]/', $line, $matches)) {
                $component_name = $matches[1];

                if (!ctype_upper($component_name[0])) {
                    $this->add_violation(
                        $file_path,
                        $line_number,
                        "JQHTML component registration '{$component_name}' must use uppercase name",
                        trim($line),
                        "Change '{$component_name}' to '" . ucfirst($component_name) . "'. This is a hard requirement of the jqhtml library - component names MUST start with an uppercase letter.",
                        'critical'
                    );
                }
            }
        }
    }
}