From b29d3dbac30ef640645269502e4fcdd5d9fb1b9c Mon Sep 17 00:00:00 2001
From: Cyril Joseph <ccyyrriill83@gmail.com>
Date: Mon, 12 Jan 2026 21:56:21 -0400
Subject: [PATCH] home page table filtering

---
 src/app/home/home.component.html |  28 ++++++++
 src/app/home/home.component.scss |   9 ++-
 src/app/home/home.component.ts   | 106 +++++++++++++++++++++++++++++++
 3 files changed, 140 insertions(+), 3 deletions(-)

diff --git a/src/app/home/home.component.html b/src/app/home/home.component.html
index b911f94..77d810a 100644
--- a/src/app/home/home.component.html
+++ b/src/app/home/home.component.html
@@ -51,6 +51,34 @@
             </div>
 
             <div class="table-actions">
+                <div class="filter-controls" *ngIf="dataSource.data.length > 0">
+                    <!-- Column Selection Dropdown -->
+                    <mat-form-field appearance="outline" class="filter-field">
+                        <mat-label>Filter By</mat-label>
+                        <mat-select [(value)]="selectedColumn" (selectionChange)="onColumnChange()">
+                            <mat-option value=""></mat-option>
+                            <mat-option *ngFor="let column of filterableColumns" [value]="column.value">
+                                {{column.displayName}}
+                            </mat-option>
+                        </mat-select>
+                    </mat-form-field>
+
+                    <!-- Search Input -->
+                    <mat-form-field appearance="outline" class="filter-field">
+                        <mat-label>Search Value</mat-label>
+                        <input matInput [(ngModel)]="filterValue" (keyup)="applyFilter()"
+                            placeholder="Enter search term...">
+                        <mat-icon matSuffix>search</mat-icon>
+                    </mat-form-field>
+
+                    <!-- Clear Filter Button -->
+                    <button mat-raised-button type="button" (click)="clearFilter()"
+                        [disabled]="!selectedColumn && !filterValue">
+                        <mat-icon>clear_all</mat-icon>
+                        Clear Filter
+                    </button>
+                </div>
+
                 <button mat-raised-button color="accent" (click)="exportData()" *ngIf="dataSource.data.length > 0"
                     matTooltip="Export to Excel" [disabled]="dataSource.data.length === 0">
                     <mat-icon>download</mat-icon> Export
diff --git a/src/app/home/home.component.scss b/src/app/home/home.component.scss
index bb5a8bc..c4b083e 100644
--- a/src/app/home/home.component.scss
+++ b/src/app/home/home.component.scss
@@ -54,10 +54,13 @@
 
     .table-actions {
         display: flex;
-        justify-content: end;
+        justify-content: space-between;
+        margin-bottom: 16px;
 
-        button {
-            margin-bottom: 16px;
+        .filter-controls {
+            display: flex;
+            gap: 16px;
+            align-items: center;
         }
     }
 
diff --git a/src/app/home/home.component.ts b/src/app/home/home.component.ts
index db705c4..c1bd6fb 100644
--- a/src/app/home/home.component.ts
+++ b/src/app/home/home.component.ts
@@ -38,6 +38,23 @@ export class HomeComponent {
   userPreferences: UserPreferences;
   carnetStatuses: CarnetStatus[] = [];
 
+  // table filter variables
+  selectedColumn: string = '';
+  filterValue: string = '';
+  filterableColumns: any[] = [
+    { value: 'applicationName', displayName: 'Application Name' },
+    { value: 'holderName', displayName: 'Holder Name' },
+    { value: 'carnetNumber', displayName: 'Carnet Number' },
+    { value: 'usSets', displayName: 'US Sets' },
+    { value: 'foreignSets', displayName: 'Foreign Sets' },
+    { value: 'transitSets', displayName: 'Transit Sets' },
+    { value: 'carnetValue', displayName: 'Carnet Value' },
+    { value: 'issueDate', displayName: 'Issue Date' },
+    { value: 'expiryDate', displayName: 'Expiry Date' },
+    { value: 'orderType', displayName: 'Order Type' },
+    { value: 'carnetStatus', displayName: 'Carnet Status' }
+  ];
+
   dataSource = new MatTableDataSource<any>();
 
   @ViewChild(MatPaginator, { static: false })
@@ -97,6 +114,10 @@ export class HomeComponent {
   onCarnetStatusClick(event: any): void {
     this.isLoading = true;
     this.showTable = false;
+
+    // Clear any existing filters when loading new data
+    this.clearFilter();
+
     this.homeService.getCarnetDataByStatus(event.spid, event.carnetStatus).subscribe({
       next: (carnetDetails) => {
         this.isLoading = false;
@@ -104,6 +125,9 @@ export class HomeComponent {
         this.dataSource.data = carnetDetails;
         this.dataSource.paginator = this.paginator;
         this.dataSource.sort = this.sort;
+
+        // Reset filter after new data is loaded
+        this.dataSource.filter = '';
       },
       error: (error) => {
         let errorMessage = this.errorHandler.handleApiError(error, 'Failed to load carnet data for the selected status');
@@ -407,6 +431,88 @@ export class HomeComponent {
     this.navigationService.navigate(route, extras);
   }
 
+  applyFilter(): void {
+    if (!this.dataSource) return;
+    if (this.selectedColumn && this.filterValue) {
+      this.dataSource.filterPredicate = (data: any, filter: string) => {
+        const columnValue = data[this.selectedColumn];
+        const searchTerm = filter.toLowerCase().trim();
+
+        // Handle different column types
+        switch (this.selectedColumn) {
+          case 'issueDate':
+          case 'expiryDate':
+            // Filter by date
+            if (columnValue) {
+              const formattedDate = this.formatDateForDisplay(columnValue);
+              return formattedDate.toLowerCase().includes(searchTerm);
+            }
+            return false;
+
+          case 'carnetStatus':
+            // Filter by status label instead of value
+            const statusLabel = this.getCarnetStatusLabel(columnValue);
+            return statusLabel.toLowerCase().includes(searchTerm);
+
+          default:
+            // Default string/number filter
+            if (typeof columnValue === 'string') {
+              return columnValue.toLowerCase().includes(searchTerm);
+            } else if (typeof columnValue === 'number') {
+              return columnValue.toString().includes(searchTerm);
+            }
+            return false;
+        }
+      };
+
+      this.dataSource.filter = this.filterValue.trim();
+    } else if (!this.filterValue) {
+      this.clearFilterData();
+    }
+  }
+
+  onColumnChange(): void {
+    this.clearFilterData();
+  }
+
+  clearFilter(): void {
+    this.selectedColumn = '';
+    this.clearFilterData();
+  }
+
+  clearFilterData(): void {
+    this.filterValue = '';
+
+    if (this.dataSource) {
+      this.dataSource.filter = '';
+    }
+  }
+
+  private formatDateForDisplay(dateValue: any): string {
+    if (!dateValue) return '';
+
+    try {
+      const date = new Date(dateValue);
+
+      // Return in multiple formats for better filtering
+      const monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
+        'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
+      const fullMonthNames = ['January', 'February', 'March', 'April', 'May', 'June',
+        'July', 'August', 'September', 'October', 'November', 'December'];
+
+      const month = monthNames[date.getUTCMonth()];
+      const fullMonth = fullMonthNames[date.getUTCMonth()];
+      const day = date.getUTCDate();
+      const year = date.getUTCFullYear();
+      const monthNumber = date.getUTCMonth() + 1;
+
+      // Return multiple formats separated by delimiter for filtering
+      return `${month} ${day}, ${year}|${fullMonth} ${day}, ${year}|${monthNumber}/${day}/${year}|${year}-${monthNumber.toString().padStart(2, '0')}-${day.toString().padStart(2, '0')}`;
+    } catch (error) {
+      return '';
+    }
+  }
+
   private saveFile(blob: Blob, filename: string): void {
     const url = window.URL.createObjectURL(blob);
     const a = document.createElement('a');