Rework TIC processing to use Storage::disk(). Implemented handling of replaces and files that already exist

database/migrations/2023_09_22_233947_file_tweeks.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+		Schema::table('files', function (Blueprint $table) {
+			$table->dropUnique(['filearea_id','name']);
+			$table->string('replaces')->nullable();
+		});
+
+		DB::statement("CREATE UNIQUE INDEX files_active ON files (filearea_id, name) WHERE deleted_at IS NULL");
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+		DB::statement("DROP INDEX files_active");
+
+		Schema::table('files', function (Blueprint $table) {
+			$table->unique(['filearea_id','name']);
+			$table->dropColumn('replaces');
+		});
+    }
+};