update sentences API

controllers/contextController.js

@@ -387,6 +387,97 @@ class ContextController {
     }
   }
 
+  /**
+   * Search contexts with partial match on title/context + filter by type_image
+   *
+   * POST /api/contexts/search
+   * Body:
+   * {
+   *   search       : String  - tìm kiếm một phần trong title HOẶC context (OR)
+   *   title        : String  - tìm riêng trong title (LIKE)
+   *   context_text : String  - tìm riêng trong context (LIKE)
+   *   type_image   : String  - exact match (e.g., 'small', 'square', 'normal')
+   *   type         : String  - exact match
+   *   status       : Number  - exact match
+   *   grade        : Number  - exact match
+   *   page         : Number  (default: 1)
+   *   limit        : Number  (default: 50)
+   * }
+   */
+  async searchContexts(req, res, next) {
+    try {
+      const {
+        search,
+        title,
+        context_text,
+        type_image,
+        type,
+        status,
+        grade,
+        page = 1,
+        limit = 50
+      } = req.body;
+
+      const { Op } = require('sequelize');
+      const offset = (page - 1) * limit;
+      const where = {};
+
+      // ── Exact-match filters ──────────────────────────────────────────────
+      if (type_image !== undefined && type_image !== null && type_image !== '') {
+        where.type_image = type_image;
+      }
+      if (type) where.type = type;
+      if (status !== undefined && status !== null) where.status = parseInt(status);
+      if (grade  !== undefined && grade  !== null) where.grade  = parseInt(grade);
+
+      // ── Text search ──────────────────────────────────────────────────────
+      // `search`        → title OR context (cả hai cùng lúc)
+      // `title`         → chỉ title
+      // `context_text`  → chỉ context
+      const textConditions = [];
+
+      if (search) {
+        textConditions.push(
+          { title:   { [Op.like]: `%${search}%` } },
+          { context: { [Op.like]: `%${search}%` } }
+        );
+      }
+      if (title) {
+        textConditions.push({ title: { [Op.like]: `%${title}%` } });
+      }
+      if (context_text) {
+        textConditions.push({ context: { [Op.like]: `%${context_text}%` } });
+      }
+
+      if (textConditions.length > 0) {
+        where[Op.or] = textConditions;
+      }
+
+      const { count, rows } = await Context.findAndCountAll({
+        where,
+        limit: parseInt(limit),
+        offset: parseInt(offset),
+        order: [['created_at', 'DESC']]
+      });
+
+      res.json({
+        success: true,
+        message: 'Search completed successfully',
+        data: {
+          contexts: rows,
+          pagination: {
+            total: count,
+            page: parseInt(page),
+            limit: parseInt(limit),
+            totalPages: Math.ceil(count / limit)
+          }
+        }
+      });
+    } catch (error) {
+      next(error);
+    }
+  }
+
   /**
    * Update context (general update - use with caution)
    */