feat: added install script

tests/Feature/InstallCommandTest.php

@@ -0,0 +1,65 @@
+<?php
+
+use Illuminate\Support\Facades\File;
+
+beforeEach(function () {
+    $this->envPath = base_path('.env');
+    $this->configPath = config_path('mattitja-analytics.php');
+
+    if (File::exists($this->configPath)) {
+        File::delete($this->configPath);
+    }
+});
+
+afterEach(function () {
+    if (File::exists($this->configPath)) {
+        File::delete($this->configPath);
+    }
+});
+
+it('publishes the config file', function () {
+    $this->artisan('mattitja:install')
+        ->assertSuccessful();
+
+    expect(File::exists($this->configPath))->toBeTrue();
+});
+
+it('displays success message', function () {
+    $this->artisan('mattitja:install')
+        ->expectsOutputToContain('Mattitja Analytics installed successfully')
+        ->assertSuccessful();
+});
+
+it('displays warning about site key', function () {
+    $this->artisan('mattitja:install')
+        ->expectsOutputToContain('MATTITJA_ANALYTICS_SITE_KEY')
+        ->assertSuccessful();
+});
+
+it('adds env variable if .env exists and key is missing', function () {
+    $originalContent = "APP_NAME=Test\n";
+    File::put($this->envPath, $originalContent);
+
+    $this->artisan('mattitja:install')
+        ->assertSuccessful();
+
+    $envContent = File::get($this->envPath);
+
+    expect($envContent)->toContain('MATTITJA_ANALYTICS_SITE_KEY=');
+
+    File::put($this->envPath, $originalContent);
+});
+
+it('does not duplicate env variable if already exists', function () {
+    $originalContent = "APP_NAME=Test\nMATTITJA_ANALYTICS_SITE_KEY=existing-key\n";
+    File::put($this->envPath, $originalContent);
+
+    $this->artisan('mattitja:install')
+        ->assertSuccessful();
+
+    $envContent = File::get($this->envPath);
+
+    expect(substr_count($envContent, 'MATTITJA_ANALYTICS_SITE_KEY'))->toBe(1);
+
+    File::put($this->envPath, "APP_NAME=Test\n");
+});