# Laravel ESLint-Equivalent Setup Complete! 🎉

## Overview

Your Laravel project now has comprehensive code quality checking tools equivalent to ESLint for JavaScript/TypeScript projects.

## 🛠️ Tools Installed

### 1. **PHP_CodeSniffer** (ESLint equivalent for PHP)

-   **Package**: `squizlabs/php_codesniffer`
-   **Purpose**: Code style checking and auto-fixing
-   **Standards**: PSR-12 with Laravel-specific rules
-   **Config**: `phpcs.xml`

### 2. **PHPStan + Larastan** (TypeScript equivalent for PHP)

-   **Packages**: `phpstan/phpstan` + `nunomaduro/larastan`
-   **Purpose**: Static analysis, type checking, error detection
-   **Level**: 6 (similar to strict TypeScript)
-   **Config**: `phpstan.neon`

### 3. **Pre-commit Hook** (Like Husky for JS projects)

-   **Location**: `.git/hooks/pre-commit`
-   **Purpose**: Prevents commits with code quality issues
-   **Checks**: Code style, static analysis, tests

## 📝 Available Commands (like npm scripts)

### Linting Commands

```bash
# Run all linting checks (like 'npm run lint')
php composer.phar lint

# Run only code style checks
php composer.phar lint:phpcs

# Auto-fix code style issues (like 'npm run lint:fix')
php composer.phar lint:phpcs:fix

# Run static analysis/type checking
php composer.phar lint:phpstan

# Auto-fix + lint (comprehensive fix attempt)
php composer.phar lint:fix

# Run linting + tests
php composer.phar check
```

### Quick Commands

```bash
# Fix most common issues automatically
php composer.phar lint:phpcs:fix

# Check what issues remain
php composer.phar lint

# Full quality check (lint + tests)
php composer.phar check
```

## 🚨 Current Status

### ✅ Code Style (PHP_CodeSniffer)

-   **Auto-fixed**: 63 style violations
-   **Remaining**: 12 manual fixes needed (mainly naming conventions)

### ⚠️ Static Analysis (PHPStan)

-   **Found**: 238 type-related issues
-   **Common issues**: Missing type hints, return types, parameter types

## 🔧 Configuration Files

### `phpcs.xml` - Code Style Rules

```xml
<?xml version="1.0"?>
<ruleset name="Laravel">
    <description>Laravel coding standard</description>

    <!-- PSR-12 standard -->
    <rule ref="PSR12"/>

    <!-- Laravel-specific adjustments -->
    <rule ref="Generic.Files.LineLength">
        <properties>
            <property name="lineLimit" value="120"/>
            <property name="absoluteLineLimit" value="0"/>
        </properties>
    </rule>

    <!-- Directories to check -->
    <file>app/</file>
    <file>config/</file>
    <file>database/</file>
    <file>routes/</file>
    <file>tests/</file>
</ruleset>
```

### `phpstan.neon` - Static Analysis Rules

```neon
includes:
    - ./vendor/nunomaduro/larastan/extension.neon

parameters:
    level: 6
    paths:
        - app
        - config
        - database
        - routes
        - tests

    excludePaths:
        - database/migrations
        - bootstrap/cache
        - storage

    checkMissingIterableValueType: true
    checkGenericClassInNonGenericObjectType: true

    ignoreErrors:
        - '#PHPDoc tag @var#'
```

## 🚀 Pre-commit Hook Workflow

When you run `git commit`, the hook automatically:

1. **Detects** staged PHP files
2. **Runs** PHP_CodeSniffer for style checking
3. **Runs** PHPStan for static analysis
4. **Runs** PHPUnit tests
5. **Prevents** commit if any checks fail
6. **Provides** helpful fix instructions

Example output:

```
🔍 Running PHP linting checks before commit...
📁 Found PHP files to check: app/Models/User.php, app/Services/...
🧹 Running PHP_CodeSniffer...
❌ PHP_CodeSniffer found style issues!
💡 Run 'php composer.phar run-script lint:phpcs:fix' to auto-fix some issues
```

## 🎯 Next Steps

### 1. Fix Remaining Style Issues

```bash
# See what needs manual fixing
php composer.phar lint:phpcs

# Common issues to fix manually:
# - Method naming (camelCase vs snake_case)
# - Function parameter ordering
# - Namespace declarations
```

### 2. Improve Type Coverage

```bash
# See type-related issues
php composer.phar lint:phpstan

# Add missing type hints:
# - Return types: public function getName(): string
# - Parameter types: public function setName(string $name): void
# - Property types: private string $name;
```

### 3. Optional: Add More Tools

```bash
# PHP-CS-Fixer (more powerful auto-fixing)
composer require --dev friendsofphp/php-cs-fixer

# Psalm (alternative to PHPStan)
composer require --dev vimeo/psalm

# PHPMD (PHP Mess Detector)
composer require --dev phpmd/phpmd
```

## 📊 Comparison to JavaScript/TypeScript

| JavaScript/TypeScript | Laravel/PHP      | Purpose                         |
| --------------------- | ---------------- | ------------------------------- |
| ESLint                | PHP_CodeSniffer  | Code style & basic linting      |
| TypeScript Compiler   | PHPStan/Larastan | Type checking & static analysis |
| Prettier              | PHP-CS-Fixer     | Code formatting                 |
| Husky                 | Git hooks        | Pre-commit validation           |
| Jest/Vitest           | PHPUnit          | Unit testing                    |

## 🎉 Benefits Achieved

✅ **Consistent Code Style**: PSR-12 standards enforced  
✅ **Type Safety**: Static analysis catches bugs early  
✅ **Automated Fixing**: Auto-fix common style issues  
✅ **Pre-commit Validation**: Prevents bad code from being committed  
✅ **Team Standards**: Enforced code quality across all contributors  
✅ **IDE Integration**: Modern editors show linting errors in real-time

Your Laravel project now has the same professional code quality setup as modern JavaScript/TypeScript projects! 🚀
