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data/PAGINATION-APPLIED.md

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+# Pagination Successfully Applied
+
+**Date**: 2025-12-28
+**Status**: ✅ Completed
+
+## Changes Applied to dashboard.html
+
+### 1. Status Filter Dropdown (Line 564-574)
+Replaced the old quality filter dropdown with a new status filter:
+
+```html
+<select id="statusFilter" onchange="changeStatusFilter(this.value)">
+    <option value="all">All States</option>
+    <option value="discovered">Discovered</option>
+    <option value="pending">Pending</option>
+    <option value="processing">Processing</option>
+    <option value="completed">Completed</option>
+    <option value="failed">Failed</option>
+    <option value="skipped">Skipped</option>
+</select>
+```
+
+**Purpose**: Allows users to filter files by their processing state (discovered, pending, etc.)
+
+### 2. Pagination Controls Container (Line 690)
+Added pagination controls after the file list table:
+
+```html
+<div id="paginationControls"></div>
+```
+
+**Purpose**: Container that displays pagination navigation (Previous/Next buttons, page indicator, page jump input)
+
+### 3. Pagination JavaScript (Lines 1440-1625)
+Replaced infinite scroll implementation with traditional pagination:
+
+**New Variables**:
+- `currentStatusFilter = 'all'` - Tracks selected status filter
+- `currentPage = 1` - Current page number
+- `totalPages = 1` - Total number of pages
+- `filesPerPage = 100` - Files shown per page
+
+**New Functions**:
+- `changeStatusFilter(status)` - Changes status filter and reloads page 1
+- `updatePaginationControls()` - Renders pagination UI with Previous/Next buttons
+- `goToPage(page)` - Navigates to specific page
+- `goToPageInput()` - Handles "Enter" key in page jump input
+
+**Updated Functions**:
+- `loadFileQuality()` - Now loads specific page using offset calculation
+- `applyFilter()` - Resets to page 1 when changing attribute filters
+
+### 4. Removed Infinite Scroll Code
+- Removed scroll event listeners
+- Removed "Load More" button logic
+- Removed `hasMoreFiles` and `isLoadingMore` variables
+
+## How It Works
+
+### Combined Filtering
+Users can now combine two types of filters:
+
+1. **Status Filter** (dropdown at top):
+   - Filters by processing state: discovered, pending, processing, completed, failed, skipped
+   - Applies to ALL pages
+
+2. **Attribute Filter** (buttons):
+   - Filters by video attributes: subtitles, audio channels, resolution, codec, file size
+   - Applies to ALL pages
+
+**Example**: Select "Discovered" status + "4K" attribute = Shows only discovered 4K files
+
+### Pagination Navigation
+
+1. **Previous/Next Buttons**:
+   - Previous disabled on page 1
+   - Next always available (loads next page)
+
+2. **Page Indicator**:
+   - Shows current page number
+   - Shows file range (e.g., "Showing 101-200")
+
+3. **Go to Page Input**:
+   - Type page number and press Enter
+   - Jumps directly to that page
+
+### Selection Persistence
+- Selected files remain selected when navigating between pages
+- Changing filters clears all selections
+- "Select All" only affects visible files on current page
+
+## Testing
+
+After deployment, verify:
+
+1. **Status Filter**:
+   - Select different statuses (discovered, completed, etc.)
+   - Verify file list updates correctly
+   - Check that pagination resets to page 1
+
+2. **Pagination Navigation**:
+   - Click Next to go to page 2
+   - Click Previous to return to page 1
+   - Use "Go to page" input to jump to specific page
+   - Verify Previous button is disabled on page 1
+
+3. **Combined Filters**:
+   - Select status filter + attribute filter
+   - Verify both filters apply correctly
+   - Check pagination shows correct results
+
+4. **Selection**:
+   - Select files on page 1
+   - Navigate to page 2
+   - Return to page 1 - selections should persist
+   - Change filter - selections should clear
+
+## Backup
+
+A backup of the original dashboard.html was created at:
+`templates/dashboard.html.backup`
+
+To restore if needed:
+```bash
+cp templates/dashboard.html.backup templates/dashboard.html
+```
+
+## Files Involved
+
+- **templates/dashboard.html** - Modified with pagination
+- **templates/dashboard.html.backup** - Original backup
+- **pagination-replacement.js** - Source code for pagination
+- **apply-pagination.py** - Automation script (already run)
+- **PAGINATION-INTEGRATION-GUIDE.md** - Manual integration guide
+
+## Next Steps
+
+1. Restart the Flask application
+2. Test all pagination features
+3. Verify status filter works correctly
+4. Test combined status + attribute filtering
+5. Verify selection persistence across pages