feat: eliminar migración de inventario existente y ajustar estructura de base de datos

database/migrations/2026_02_05_141627_migrate_existing_inventory_to_warehouses.php

@@ -1,112 +0,0 @@
-<?php
-
-use Illuminate\Database\Migrations\Migration;
-use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Support\Facades\DB;
-use Illuminate\Support\Facades\Schema;
-
-return new class extends Migration
-{
-    /**
-     * Run the migrations.
-     */
-    public function up()
-    {
-        // 1. Crear almacén principal
-        $mainWarehouse = DB::table('warehouses')->insertGetId([
-            'code' => 'ALM-PRINCIPAL',
-            'name' => 'Almacén Principal',
-            'is_active' => true,
-            'is_main' => true,
-            'created_at' => now(),
-            'updated_at' => now(),
-        ]);
-
-        // 2. Obtener usuario admin para los movimientos
-        $adminUser = DB::table('users')->first();
-
-        // 3. Migrar stock de inventories a inventory_warehouse y generar movimientos entry
-        $inventories = DB::table('inventories')->whereNull('deleted_at')->get();
-
-        foreach ($inventories as $inventory) {
-            DB::table('inventory_warehouse')->insert([
-                'inventory_id' => $inventory->id,
-                'warehouse_id' => $mainWarehouse,
-                'stock' => $inventory->stock,
-                'created_at' => now(),
-                'updated_at' => now(),
-            ]);
-
-            // Generar movimiento de entrada inicial solo si tiene stock
-            if ($inventory->stock > 0) {
-                $cost = DB::table('prices')
-                    ->where('inventory_id', $inventory->id)
-                    ->value('cost');
-
-                DB::table('inventory_movements')->insert([
-                    'inventory_id' => $inventory->id,
-                    'warehouse_from_id' => null,
-                    'warehouse_to_id' => $mainWarehouse,
-                    'movement_type' => 'entry',
-                    'quantity' => $inventory->stock,
-                    'unit_cost' => $cost ?? 0,
-                    'user_id' => $adminUser->id,
-                    'notes' => 'Saldo inicial - migración de inventario existente',
-                    'invoice_reference' => 'MIGRACIÓN',
-                    'created_at' => now(),
-                ]);
-            }
-        }
-
-        // 4. Asignar almacén principal a todos los seriales existentes
-        DB::table('inventory_serials')->update([
-            'warehouse_id' => $mainWarehouse,
-        ]);
-
-        // 5. Asignar almacén principal a sale_details existentes
-        DB::table('sale_details')
-            ->whereNull('warehouse_id')
-            ->update(['warehouse_id' => $mainWarehouse]);
-
-        // 6. Eliminar columna stock de inventories (ahora vive en inventory_warehouse)
-        Schema::table('inventories', function (Blueprint $table) {
-            $table->dropColumn('stock');
-        });
-
-        // 7. Hacer cost nullable en prices (para productos nuevos sin entrada aún)
-        Schema::table('prices', function (Blueprint $table) {
-            $table->decimal('cost', 15, 2)->nullable()->change();
-        });
-    }
-
-    public function down()
-    {
-        // Restaurar cost como no nullable
-        Schema::table('prices', function (Blueprint $table) {
-            $table->decimal('cost', 15, 2)->nullable(false)->change();
-        });
-
-        // Restaurar columna stock en inventories
-        Schema::table('inventories', function (Blueprint $table) {
-            $table->integer('stock')->default(0)->after('barcode');
-        });
-
-        // Restaurar stock desde inventory_warehouse
-        $records = DB::table('inventory_warehouse')->get();
-        foreach ($records as $record) {
-            DB::table('inventories')
-                ->where('id', $record->inventory_id)
-                ->increment('stock', $record->stock);
-        }
-
-        // Limpiar datos migrados
-        DB::table('inventory_movements')
-            ->where('notes', 'Saldo inicial - migración de inventario existente')
-            ->delete();
-
-        DB::table('inventory_serials')->update(['warehouse_id' => null]);
-        DB::table('sale_details')->update(['warehouse_id' => null]);
-        DB::table('inventory_warehouse')->truncate();
-        DB::table('warehouses')->truncate();
-    }
-};