add new back

server/routers/procurement/models/BuyProduct.js

@@ -35,6 +35,16 @@ const buyProductSchema = new mongoose.Schema({
       default: Date.now
     }
   }],
+  acceptedBy: [{
+    companyId: {
+      type: mongoose.Schema.Types.ObjectId,
+      ref: 'Company'
+    },
+    acceptedAt: {
+      type: Date,
+      default: Date.now
+    }
+  }],
   status: {
     type: String,
     enum: ['draft', 'published'],

server/routers/procurement/models/Request.js

@@ -0,0 +1,62 @@
+const mongoose = require('mongoose');
+
+const requestSchema = new mongoose.Schema({
+  senderCompanyId: {
+    type: String,
+    required: true,
+    index: true
+  },
+  recipientCompanyId: {
+    type: String,
+    required: true,
+    index: true
+  },
+  text: {
+    type: String,
+    required: true
+  },
+  files: [{
+    id: String,
+    name: String,
+    url: String,
+    type: String,
+    size: Number,
+    uploadedAt: {
+      type: Date,
+      default: Date.now
+    }
+  }],
+  productId: {
+    type: String,
+    ref: 'BuyProduct'
+  },
+  status: {
+    type: String,
+    enum: ['pending', 'accepted', 'rejected'],
+    default: 'pending'
+  },
+  response: {
+    type: String,
+    default: null
+  },
+  respondedAt: {
+    type: Date,
+    default: null
+  },
+  createdAt: {
+    type: Date,
+    default: Date.now,
+    index: true
+  },
+  updatedAt: {
+    type: Date,
+    default: Date.now
+  }
+});
+
+// Индексы для оптимизации поиска
+requestSchema.index({ senderCompanyId: 1, createdAt: -1 });
+requestSchema.index({ recipientCompanyId: 1, createdAt: -1 });
+requestSchema.index({ senderCompanyId: 1, recipientCompanyId: 1 });
+
+module.exports = mongoose.model('Request', requestSchema);