Feat: Smart Product Condition Logic

scripts/migrate_condition.js

@@ -0,0 +1,30 @@
+const mongoose = require('mongoose');
+require('dotenv').config();
+
+const MONGO_URI = process.env.MONGO_URI;
+
+if (!MONGO_URI) {
+    console.error("❌ MONGO_URI is missing");
+    process.exit(1);
+}
+
+mongoose.connect(MONGO_URI)
+    .then(async () => {
+        console.log("✅ MongoDB Connected");
+
+        const Product = require('./src/models/Product'); // Adjust path if needed
+
+        // 1. Update all products missing 'condition'
+        const result = await Product.updateMany(
+            { condition: { $exists: false } }, // Filter
+            { $set: { condition: 'new' } }     // Update
+        );
+
+        console.log(`✅ Migrated ${result.modifiedCount} products to 'new' condition.`);
+
+        process.exit(0);
+    })
+    .catch(err => {
+        console.error("❌ Error:", err);
+        process.exit(1);
+    });

src/controllers/userController.js

@@ -189,20 +189,56 @@ exports.showSubCategories = async (ctx, parentId) => {
     }
 };
 
-// Show Products (Ask for Condition first)
+// Show Products (Smart Condition Check)
 exports.showProducts = async (ctx, catId) => {
-    const id = catId.replace('cat_', '');
-    const buttons = [
-        [
-            Markup.button.callback("🆕 Yangi", `cond_${id}_new`),
-            Markup.button.callback("♻️ B/U", `cond_${id}_used`)
-        ],
-        [Markup.button.callback("🌐 Barchasi", `cond_${id}_all`)],
-        [Markup.button.callback(ctx.i18n.btn_back_nav || "⬅️ Orqaga", "back_to_cats")]
-    ];
-    // Try edit, fallback to reply
-    await ctx.editMessageText("🔎 Qaysi turdagi mahsulotlarni ko'rmoqchisiz?", Markup.inlineKeyboard(buttons))
-        .catch(() => ctx.reply("🔎 Qaysi turdagi mahsulotlarni ko'rmoqchisiz?", Markup.inlineKeyboard(buttons)));
+    try {
+        const id = catId.replace('cat_', '');
+        const category = await Category.findOne({ id: id });
+        if (!category) return ctx.reply(ctx.i18n.no_cats);
+
+        // Smart Check: Count products
+        // We treat missing condition as 'new'
+        const countNew = await Product.countDocuments({
+            category: category.name,
+            $or: [{ condition: 'new' }, { condition: { $exists: false } }]
+        });
+        const countUsed = await Product.countDocuments({
+            category: category.name,
+            condition: 'used'
+        });
+
+        if (countNew === 0 && countUsed === 0) {
+            return ctx.reply("❌ Bu kategoriyada mahsulotlar yo'q.");
+        }
+
+        // If only NEW exist -> Show New directly
+        if (countUsed === 0) {
+            return exports.browseCategory(ctx, catId, 0, 0, 'new');
+        }
+
+        // If only USED exist -> Show Used directly
+        if (countNew === 0) {
+            return exports.browseCategory(ctx, catId, 0, 0, 'used');
+        }
+
+        // If BOTH exist -> Ask user
+        const buttons = [
+            [
+                Markup.button.callback(`🆕 Yangi (${countNew})`, `cond_${id}_new`),
+                Markup.button.callback(`♻️ B/U (${countUsed})`, `cond_${id}_used`)
+            ],
+            [Markup.button.callback(`🌐 Barchasi (${countNew + countUsed})`, `cond_${id}_all`)],
+            [Markup.button.callback(ctx.i18n.btn_back_nav || "⬅️ Orqaga", "back_to_cats")]
+        ];
+
+        // Try edit, fallback to reply
+        await ctx.editMessageText("🔎 Qaysi turdagi mahsulotlarni ko'rmoqchisiz?", Markup.inlineKeyboard(buttons))
+            .catch(() => ctx.reply("🔎 Qaysi turdagi mahsulotlarni ko'rmoqchisiz?", Markup.inlineKeyboard(buttons)));
+
+    } catch (e) {
+        console.error("Smart Filter Error:", e);
+        ctx.reply("Error in Catalog");
+    }
 };
 
 // Filter Handler
@@ -218,7 +254,14 @@ exports.browseCategory = async (ctx, catId, prodIndex, mediaIndex = 0, condition
         if (!category) return ctx.reply("Kategoriya topilmadi.");
 
         let query = { category: category.name };
-        if (conditionFilter !== 'all') query.condition = conditionFilter;
+
+        if (conditionFilter === 'new') {
+            // Treat missing as new
+            query.$or = [{ condition: 'new' }, { condition: { $exists: false } }];
+        } else if (conditionFilter === 'used') {
+            query.condition = 'used';
+        }
+        // If 'all', no condition filter needed
 
         const products = await Product.find(query);
         if (!products || products.length === 0) return ctx.reply("❌ Bu kategoriyada mahsulotlar yo'q.");