Merge pull request #83 from christianlouis/copilot/fix-document-list-ordering

Add server-side pagination, filtering, and status tracking to /files view

app/api/files.py

@@ -1,19 +1,22 @@
 """
 File-related API endpoints
 """
-from fastapi import APIRouter, Request, HTTPException, Depends, UploadFile, File
+from fastapi import APIRouter, Request, HTTPException, Depends, UploadFile, File, Query
 from sqlalchemy.orm import Session
+from sqlalchemy import desc, asc, or_, func
+from typing import Optional, List
 import logging
 import os
 import uuid
 import mimetypes
 
 from app.auth import require_login
-from app.models import FileRecord
+from app.models import FileRecord, ProcessingLog
 from app.config import settings
 from app.api.common import get_db
 from app.tasks.process_document import process_document
 from app.tasks.convert_to_pdf import convert_to_pdf
+from app.utils.file_status import get_file_processing_status, get_files_processing_status
 
 # Set up logging
 logger = logging.getLogger(__name__)
@@ -22,27 +25,113 @@ router = APIRouter()
 
 @router.get("/files")
 @require_login
-def list_files_api(request: Request, db: Session = Depends(get_db)):
+def list_files_api(
+    request: Request,
+    db: Session = Depends(get_db),
+    page: int = Query(1, ge=1, description="Page number"),
+    per_page: int = Query(50, ge=1, le=200, description="Items per page"),
+    sort_by: str = Query("created_at", description="Sort field: id, original_filename, file_size, mime_type, created_at, status"),
+    sort_order: str = Query("desc", description="Sort order: asc or desc"),
+    search: Optional[str] = Query(None, description="Search in filename"),
+    mime_type: Optional[str] = Query(None, description="Filter by MIME type"),
+    status: Optional[str] = Query(None, description="Filter by processing status")
+):
     """
-    Returns a JSON list of all FileRecord entries.
-    Protected by `@require_login`, so only logged-in sessions can access.
+    Returns a paginated JSON list of FileRecord entries with processing status.
+    Supports server-side sorting, filtering, and searching.
+    
+    Query Parameters:
+    - page: Page number (default: 1)
+    - per_page: Items per page (default: 50, max: 200)
+    - sort_by: Field to sort by (default: created_at)
+    - sort_order: asc or desc (default: desc)
+    - search: Search in filename
+    - mime_type: Filter by MIME type
+    - status: Filter by processing status (pending, processing, completed, failed)
     
     Example response:
-    [
-      {
-        "id": 123,
-        "filehash": "abc123...",
-        "original_filename": "example.pdf",
-        "local_filename": "/workdir/tmp/<uuid>.pdf",
-        "file_size": 1048576,
-        "mime_type": "application/pdf",
-        "created_at": "2025-05-01T12:34:56.789000"
-      },
-      ...
-    ]
+    {
+      "files": [...],
+      "pagination": {
+        "page": 1,
+        "per_page": 50,
+        "total_items": 150,
+        "total_pages": 3
+      }
+    }
     """
-    files = db.query(FileRecord).order_by(FileRecord.created_at.desc()).all()
-    # Return a simple list of dicts
+    # Start with base query
+    query = db.query(FileRecord)
+    
+    # Apply search filter
+    if search:
+        query = query.filter(FileRecord.original_filename.ilike(f"%{search}%"))
+    
+    # Apply MIME type filter
+    if mime_type:
+        query = query.filter(FileRecord.mime_type == mime_type)
+    
+    # Apply status filter (before pagination for correct counts)
+    if status:
+        # Subquery to get file IDs matching the status
+        if status == "pending":
+            # Files with no logs
+            subq = db.query(ProcessingLog.file_id).distinct()
+            query = query.filter(~FileRecord.id.in_(subq))
+        elif status == "processing":
+            # Files with in_progress logs
+            subq = db.query(ProcessingLog.file_id).filter(
+                ProcessingLog.status == "in_progress"
+            ).distinct()
+            query = query.filter(FileRecord.id.in_(subq))
+        elif status == "failed":
+            # Files with failure logs
+            subq = db.query(ProcessingLog.file_id).filter(
+                ProcessingLog.status == "failure"
+            ).distinct()
+            query = query.filter(FileRecord.id.in_(subq))
+        elif status == "completed":
+            # Files with success logs but no failures or in_progress
+            success_files = db.query(ProcessingLog.file_id).filter(
+                ProcessingLog.status == "success"
+            ).distinct().subquery()
+            
+            failed_files = db.query(ProcessingLog.file_id).filter(
+                or_(ProcessingLog.status == "failure", ProcessingLog.status == "in_progress")
+            ).distinct().subquery()
+            
+            query = query.filter(
+                FileRecord.id.in_(db.query(success_files.c.file_id))
+            ).filter(
+                ~FileRecord.id.in_(db.query(failed_files.c.file_id))
+            )
+    
+    # Get total count before pagination (after all filters)
+    total_items = query.count()
+    
+    # Apply sorting
+    sort_column = {
+        "id": FileRecord.id,
+        "original_filename": FileRecord.original_filename,
+        "file_size": FileRecord.file_size,
+        "mime_type": FileRecord.mime_type,
+        "created_at": FileRecord.created_at
+    }.get(sort_by, FileRecord.created_at)
+    
+    if sort_order == "asc":
+        query = query.order_by(asc(sort_column))
+    else:
+        query = query.order_by(desc(sort_column))
+    
+    # Apply pagination
+    offset = (page - 1) * per_page
+    files = query.offset(offset).limit(per_page).all()
+    
+    # Get processing status for all files efficiently
+    file_ids = [f.id for f in files]
+    statuses = get_files_processing_status(db, file_ids)
+    
+    # Build result with processing status
     result = []
     for f in files:
         result.append({
@@ -52,9 +141,93 @@ def list_files_api(request: Request, db: Session = Depends(get_db)):
             "local_filename": f.local_filename,
             "file_size": f.file_size,
             "mime_type": f.mime_type,
-            "created_at": f.created_at.isoformat() if f.created_at else None
+            "created_at": f.created_at.isoformat() if f.created_at else None,
+            "processing_status": statuses.get(f.id, {
+                "status": "pending",
+                "last_step": None,
+                "has_errors": False,
+                "total_steps": 0
+            })
         })
-    return result
+    
+    # Calculate pagination info
+    total_pages = (total_items + per_page - 1) // per_page
+    
+    return {
+        "files": result,
+        "pagination": {
+            "page": page,
+            "per_page": per_page,
+            "total_items": total_items,
+            "total_pages": total_pages
+        }
+    }
+
+
+def _get_file_processing_status(db: Session, file_id: int) -> dict:
+    """
+    Deprecated: Use app.utils.file_status.get_file_processing_status instead.
+    Kept for backward compatibility with file detail endpoint.
+    """
+    from app.utils.file_status import get_file_processing_status
+    return get_file_processing_status(db, file_id)
+
+
+
+@router.get("/files/{file_id}")
+@require_login
+def get_file_details(request: Request, file_id: int, db: Session = Depends(get_db)):
+    """
+    Get detailed information about a specific file including processing history.
+    """
+    # Find the file record
+    file_record = db.query(FileRecord).filter(FileRecord.id == file_id).first()
+    
+    if not file_record:
+        raise HTTPException(
+            status_code=404,
+            detail=f"File record with ID {file_id} not found"
+        )
+    
+    # Get processing logs
+    logs = db.query(ProcessingLog).filter(
+        ProcessingLog.file_id == file_id
+    ).order_by(ProcessingLog.timestamp.desc()).all()
+    
+    # Build log list
+    log_list = []
+    for log in logs:
+        log_list.append({
+            "id": log.id,
+            "task_id": log.task_id,
+            "step_name": log.step_name,
+            "status": log.status,
+            "message": log.message,
+            "timestamp": log.timestamp.isoformat() if log.timestamp else None
+        })
+    
+    # Get processing status
+    processing_status = _get_file_processing_status(db, file_id)
+    
+    # Check if files exist on disk
+    files_on_disk = {
+        "original": os.path.exists(file_record.local_filename) if file_record.local_filename else False
+    }
+    
+    return {
+        "file": {
+            "id": file_record.id,
+            "filehash": file_record.filehash,
+            "original_filename": file_record.original_filename,
+            "local_filename": file_record.local_filename,
+            "file_size": file_record.file_size,
+            "mime_type": file_record.mime_type,
+            "created_at": file_record.created_at.isoformat() if file_record.created_at else None
+        },
+        "processing_status": processing_status,
+        "logs": log_list,
+        "files_on_disk": files_on_disk
+    }
 
 @router.delete("/files/{file_id}")
 @require_login

app/utils/file_status.py

@@ -0,0 +1,102 @@
+"""
+Utility functions for file processing status determination.
+"""
+from typing import Dict, List
+from sqlalchemy.orm import Session
+from app.models import ProcessingLog
+
+
+def get_file_processing_status(db: Session, file_id: int) -> Dict:
+    """
+    Get the processing status for a file by checking its processing logs.
+    
+    Args:
+        db: Database session
+        file_id: ID of the file
+    
+    Returns:
+        dict with status, last_step, and has_errors
+    """
+    # Get all logs for this file
+    logs = db.query(ProcessingLog).filter(
+        ProcessingLog.file_id == file_id
+    ).order_by(ProcessingLog.timestamp.desc()).all()
+    
+    return _compute_status_from_logs(logs)
+
+
+def get_files_processing_status(db: Session, file_ids: List[int]) -> Dict[int, Dict]:
+    """
+    Get processing status for multiple files efficiently.
+    
+    Args:
+        db: Database session
+        file_ids: List of file IDs
+    
+    Returns:
+        dict mapping file_id to status dict
+    """
+    # Get all logs for these files in one query
+    logs = db.query(ProcessingLog).filter(
+        ProcessingLog.file_id.in_(file_ids)
+    ).order_by(ProcessingLog.file_id, ProcessingLog.timestamp.desc()).all()
+    
+    # Group logs by file_id
+    logs_by_file = {}
+    for log in logs:
+        if log.file_id not in logs_by_file:
+            logs_by_file[log.file_id] = []
+        logs_by_file[log.file_id].append(log)
+    
+    # Compute status for each file
+    result = {}
+    for file_id in file_ids:
+        file_logs = logs_by_file.get(file_id, [])
+        result[file_id] = _compute_status_from_logs(file_logs)
+    
+    return result
+
+
+def _compute_status_from_logs(logs: List[ProcessingLog]) -> Dict:
+    """
+    Compute processing status from a list of processing logs.
+    
+    Args:
+        logs: List of ProcessingLog objects (should be ordered by timestamp desc)
+    
+    Returns:
+        dict with status, last_step, has_errors, and total_steps
+    """
+    if not logs:
+        return {
+            "status": "pending",
+            "last_step": None,
+            "has_errors": False,
+            "total_steps": 0
+        }
+    
+    # Check for failures
+    has_errors = any(log.status == "failure" for log in logs)
+    
+    # Check if any in progress
+    in_progress = any(log.status == "in_progress" for log in logs)
+    
+    # Get the latest log
+    latest_log = logs[0]
+    
+    # Determine overall status
+    if has_errors:
+        status = "failed"
+    elif in_progress:
+        status = "processing"
+    elif latest_log.status == "success":
+        status = "completed"
+    else:
+        status = "pending"
+    
+    return {
+        "status": status,
+        "last_step": latest_log.step_name,
+        "has_errors": has_errors,
+        "total_steps": len(logs)
+    }

app/views/files.py

@@ -1,32 +1,105 @@
 """
 File management views for displaying and managing files.
 """
-from fastapi import Request, Depends
+from fastapi import Request, Depends, Query
 from sqlalchemy.orm import Session
+from typing import Optional
 
 from app.views.base import APIRouter, templates, require_login, get_db, logger
+from app.utils.file_status import get_files_processing_status
 
 router = APIRouter()
 
 @router.get("/files")
 @require_login
-def files_page(request: Request, db: Session = Depends(get_db)):
+def files_page(
+    request: Request,
+    db: Session = Depends(get_db),
+    page: int = Query(1, ge=1),
+    per_page: int = Query(50, ge=1, le=200),
+    sort_by: str = Query("created_at"),
+    sort_order: str = Query("desc"),
+    search: Optional[str] = Query(None),
+    mime_type: Optional[str] = Query(None),
+    status: Optional[str] = Query(None)
+):
     """
-    Return the 'files.html' template with files from the database
+    Return the 'files.html' template with server-side pagination, sorting, and filtering
     """
     try:
         # Import the model here to avoid circular imports
-        from app.models import FileRecord
+        from app.models import FileRecord, ProcessingLog
+        from sqlalchemy import desc, asc
         
-        # Fetch all files from the database
-        files = db.query(FileRecord).order_by(FileRecord.created_at.desc()).all()
+        # Start with base query
+        query = db.query(FileRecord)
+        
+        # Apply search filter
+        if search:
+            query = query.filter(FileRecord.original_filename.ilike(f"%{search}%"))
+        
+        # Apply MIME type filter
+        if mime_type:
+            query = query.filter(FileRecord.mime_type == mime_type)
+        
+        # Get total count before pagination
+        total_items = query.count()
+        
+        # Apply sorting
+        sort_column = {
+            "id": FileRecord.id,
+            "original_filename": FileRecord.original_filename,
+            "file_size": FileRecord.file_size,
+            "mime_type": FileRecord.mime_type,
+            "created_at": FileRecord.created_at
+        }.get(sort_by, FileRecord.created_at)
+        
+        if sort_order == "asc":
+            query = query.order_by(asc(sort_column))
+        else:
+            query = query.order_by(desc(sort_column))
+        
+        # Apply pagination
+        offset = (page - 1) * per_page
+        files = query.offset(offset).limit(per_page).all()
+        
+        # Get processing status for all files efficiently (avoids N+1)
+        file_ids = [f.id for f in files]
+        statuses = get_files_processing_status(db, file_ids)
+        
+        # Add status to each file
+        files_with_status = []
+        for file in files:
+            file.processing_status = statuses.get(file.id, {}).get("status", "pending")
+            files_with_status.append(file)
+        
+        # Calculate pagination info
+        total_pages = (total_items + per_page - 1) // per_page
+        
+        # Get unique MIME types for filter dropdown
+        mime_types = db.query(FileRecord.mime_type).distinct().filter(
+            FileRecord.mime_type.isnot(None)
+        ).all()
+        mime_types = [mt[0] for mt in mime_types if mt[0]]
         
         # Debug output
-        logger.info(f"Retrieved {len(files)} files from database")
+        logger.info(f"Retrieved {len(files_with_status)} files from database (page {page}/{total_pages})")
         
         return templates.TemplateResponse("files.html", {
             "request": request,
-            "files": files
+            "files": files_with_status,
+            "pagination": {
+                "page": page,
+                "per_page": per_page,
+                "total_items": total_items,
+                "total_pages": total_pages
+            },
+            "sort_by": sort_by,
+            "sort_order": sort_order,
+            "search": search or "",
+            "mime_type": mime_type or "",
+            "status": status or "",
+            "mime_types": mime_types
         })
     except Exception as e:
         # Log any errors
@@ -35,5 +108,52 @@ def files_page(request: Request, db: Session = Depends(get_db)):
         return templates.TemplateResponse("files.html", {
             "request": request,
             "files": [],
+            "pagination": {
+                "page": 1,
+                "per_page": per_page,
+                "total_items": 0,
+                "total_pages": 0
+            },
+            "error": str(e)
+        })
+
+
+@router.get("/files/{file_id}/detail")
+@require_login
+def file_detail_page(request: Request, file_id: int, db: Session = Depends(get_db)):
+    """
+    Return the file detail page showing processing history and file information
+    """
+    try:
+        from app.models import FileRecord, ProcessingLog
+        import os
+        
+        # Find the file record
+        file_record = db.query(FileRecord).filter(FileRecord.id == file_id).first()
+        
+        if not file_record:
+            return templates.TemplateResponse("file_detail.html", {
+                "request": request,
+                "error": f"File with ID {file_id} not found"
+            })
+        
+        # Get processing logs
+        logs = db.query(ProcessingLog).filter(
+            ProcessingLog.file_id == file_id
+        ).order_by(ProcessingLog.timestamp.asc()).all()
+        
+        # Check if file exists on disk
+        file_exists = os.path.exists(file_record.local_filename) if file_record.local_filename else False
+        
+        return templates.TemplateResponse("file_detail.html", {
+            "request": request,
+            "file": file_record,
+            "logs": logs,
+            "file_exists": file_exists
+        })
+    except Exception as e:
+        logger.error(f"Error retrieving file details: {str(e)}")
+        return templates.TemplateResponse("file_detail.html", {
+            "request": request,
             "error": str(e)
         })

frontend/templates/file_detail.html

@@ -0,0 +1,310 @@
+{% extends "base.html" %}
+{% block title %}File Details{% endblock %}
+
+{% block head_extra %}
+  <style>
+    .detail-container {
+      max-width: 1200px;
+      margin: 0 auto;
+    }
+    .back-button {
+      display: inline-flex;
+      align-items: center;
+      color: #3182ce;
+      text-decoration: none;
+      margin-bottom: 1.5rem;
+      font-weight: 600;
+    }
+    .back-button:hover {
+      color: #2c5aa0;
+    }
+    .back-button i {
+      margin-right: 0.5rem;
+    }
+    
+    .detail-card {
+      background-color: white;
+      border-radius: 0.5rem;
+      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+      padding: 2rem;
+      margin-bottom: 1.5rem;
+    }
+    .detail-card h3 {
+      font-size: 1.5rem;
+      font-weight: bold;
+      margin-bottom: 1rem;
+      color: #2d3748;
+    }
+    
+    .detail-grid {
+      display: grid;
+      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+      gap: 1.5rem;
+    }
+    .detail-item {
+      display: flex;
+      flex-direction: column;
+    }
+    .detail-label {
+      font-weight: 600;
+      color: #4a5568;
+      margin-bottom: 0.25rem;
+      font-size: 0.875rem;
+      text-transform: uppercase;
+      letter-spacing: 0.05em;
+    }
+    .detail-value {
+      color: #2d3748;
+      font-size: 1rem;
+      word-break: break-word;
+    }
+    
+    /* Status badges */
+    .status-badge {
+      display: inline-block;
+      padding: 0.5rem 1rem;
+      border-radius: 9999px;
+      font-size: 1rem;
+      font-weight: 600;
+      text-align: center;
+    }
+    .status-pending {
+      background-color: #FEF3C7;
+      color: #92400E;
+    }
+    .status-processing {
+      background-color: #DBEAFE;
+      color: #1E3A8A;
+    }
+    .status-completed {
+      background-color: #D1FAE5;
+      color: #065F46;
+    }
+    .status-failed {
+      background-color: #FEE2E2;
+      color: #991B1B;
+    }
+    
+    /* Processing logs */
+    .timeline {
+      position: relative;
+      padding-left: 2rem;
+    }
+    .timeline::before {
+      content: '';
+      position: absolute;
+      left: 0.5rem;
+      top: 0;
+      bottom: 0;
+      width: 2px;
+      background-color: #e2e8f0;
+    }
+    .timeline-item {
+      position: relative;
+      padding-bottom: 2rem;
+    }
+    .timeline-item:last-child {
+      padding-bottom: 0;
+    }
+    .timeline-marker {
+      position: absolute;
+      left: -1.5rem;
+      width: 1rem;
+      height: 1rem;
+      border-radius: 50%;
+      background-color: #e2e8f0;
+      border: 2px solid white;
+    }
+    .timeline-marker.success {
+      background-color: #48bb78;
+    }
+    .timeline-marker.failure {
+      background-color: #f56565;
+    }
+    .timeline-marker.in_progress {
+      background-color: #4299e1;
+    }
+    .timeline-marker.pending {
+      background-color: #ecc94b;
+    }
+    .timeline-content {
+      background-color: #f7fafc;
+      border-radius: 0.5rem;
+      padding: 1rem;
+      border-left: 3px solid #e2e8f0;
+    }
+    .timeline-content.success {
+      border-left-color: #48bb78;
+      background-color: #f0fff4;
+    }
+    .timeline-content.failure {
+      border-left-color: #f56565;
+      background-color: #fff5f5;
+    }
+    .timeline-content.in_progress {
+      border-left-color: #4299e1;
+      background-color: #ebf8ff;
+    }
+    .timeline-content.pending {
+      border-left-color: #ecc94b;
+      background-color: #fffff0;
+    }
+    .timeline-title {
+      font-weight: 600;
+      color: #2d3748;
+      margin-bottom: 0.5rem;
+    }
+    .timeline-message {
+      color: #4a5568;
+      margin-bottom: 0.5rem;
+    }
+    .timeline-meta {
+      display: flex;
+      justify-content: space-between;
+      font-size: 0.875rem;
+      color: #718096;
+    }
+    .timeline-task-id {
+      font-family: monospace;
+      font-size: 0.75rem;
+      color: #a0aec0;
+    }
+    
+    .no-logs {
+      text-align: center;
+      padding: 3rem;
+      color: #718096;
+    }
+    .no-logs i {
+      font-size: 3rem;
+      margin-bottom: 1rem;
+      opacity: 0.5;
+    }
+    
+    .error-message {
+      background-color: #FEE2E2;
+      border: 1px solid #F87171;
+      color: #B91C1C;
+      padding: 1rem;
+      border-radius: 0.25rem;
+      margin-bottom: 1rem;
+    }
+    
+    .file-status-indicator {
+      display: inline-flex;
+      align-items: center;
+      gap: 0.5rem;
+      padding: 0.5rem 1rem;
+      border-radius: 0.25rem;
+      font-size: 0.875rem;
+    }
+    .file-status-indicator.exists {
+      background-color: #D1FAE5;
+      color: #065F46;
+    }
+    .file-status-indicator.missing {
+      background-color: #FEE2E2;
+      color: #991B1B;
+    }
+  </style>
+{% endblock %}
+
+{% block content %}
+<div class="detail-container">
+  <a href="/files" class="back-button">
+    <i class="fas fa-arrow-left"></i>
+    Back to File List
+  </a>
+  
+  {% if error %}
+  <div class="error-message">
+    <p><strong>Error:</strong> {{ error }}</p>
+  </div>
+  {% else %}
+  
+  <!-- File Information Card -->
+  <div class="detail-card">
+    <h3>File Information</h3>
+    <div class="detail-grid">
+      <div class="detail-item">
+        <span class="detail-label">File ID</span>
+        <span class="detail-value">{{ file.id }}</span>
+      </div>
+      <div class="detail-item">
+        <span class="detail-label">Original Filename</span>
+        <span class="detail-value">{{ file.original_filename }}</span>
+      </div>
+      <div class="detail-item">
+        <span class="detail-label">File Hash</span>
+        <span class="detail-value" style="font-family: monospace; font-size: 0.875rem;">{{ file.filehash }}</span>
+      </div>
+      <div class="detail-item">
+        <span class="detail-label">File Size</span>
+        <span class="detail-value">{{ (file.file_size / 1024) | round(2) }} KB ({{ file.file_size }} bytes)</span>
+      </div>
+      <div class="detail-item">
+        <span class="detail-label">MIME Type</span>
+        <span class="detail-value">{{ file.mime_type or 'N/A' }}</span>
+      </div>
+      <div class="detail-item">
+        <span class="detail-label">Created At</span>
+        <span class="detail-value">{{ file.created_at.strftime('%Y-%m-%d %H:%M:%S') if file.created_at else 'N/A' }}</span>
+      </div>
+      <div class="detail-item">
+        <span class="detail-label">Local Path</span>
+        <span class="detail-value" style="font-family: monospace; font-size: 0.875rem;">{{ file.local_filename }}</span>
+      </div>
+      <div class="detail-item">
+        <span class="detail-label">File on Disk</span>
+        <span class="detail-value">
+          {% if file_exists %}
+          <span class="file-status-indicator exists">
+            <i class="fas fa-check-circle"></i> File exists
+          </span>
+          {% else %}
+          <span class="file-status-indicator missing">
+            <i class="fas fa-times-circle"></i> File not found
+          </span>
+          {% endif %}
+        </span>
+      </div>
+    </div>
+  </div>
+  
+  <!-- Processing History Card -->
+  <div class="detail-card">
+    <h3>Processing History</h3>
+    {% if logs %}
+    <div class="timeline">
+      {% for log in logs %}
+      <div class="timeline-item">
+        <div class="timeline-marker {{ log.status.lower().replace(' ', '_') }}"></div>
+        <div class="timeline-content {{ log.status.lower().replace(' ', '_') }}">
+          <div class="timeline-title">
+            {{ log.step_name }} - <span style="text-transform: capitalize;">{{ log.status }}</span>
+          </div>
+          {% if log.message %}
+          <div class="timeline-message">{{ log.message }}</div>
+          {% endif %}
+          <div class="timeline-meta">
+            <span>{{ log.timestamp.strftime('%Y-%m-%d %H:%M:%S') if log.timestamp else 'N/A' }}</span>
+            {% if log.task_id %}
+            <span class="timeline-task-id">Task: {{ log.task_id[:16] }}...</span>
+            {% endif %}
+          </div>
+        </div>
+      </div>
+      {% endfor %}
+    </div>
+    {% else %}
+    <div class="no-logs">
+      <i class="fas fa-clipboard-list"></i>
+      <p>No processing logs found for this file.</p>
+      <p style="margin-top: 0.5rem; font-size: 0.875rem;">The file may not have been processed yet.</p>
+    </div>
+    {% endif %}
+  </div>
+  
+  {% endif %}
+</div>
+{% endblock %}

frontend/templates/files.html

@@ -3,10 +3,6 @@
 
 {% block head_extra %}
   <script src="/static/js/common.js"></script>
-  <!-- Add TableSorter library -->
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.31.3/js/jquery.tablesorter.min.js"></script>
-  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.31.3/css/theme.bootstrap_4.min.css">
   <style>
     .file-table {
       width: 100%;
@@ -22,55 +18,161 @@
     .file-table th {
       background-color: #f7fafc;
       font-weight: 600;
-      cursor: pointer;
+      position: relative;
     }
-    .file-table th:hover {
+    .file-table th.sortable {
+      cursor: pointer;
+      user-select: none;
+    }
+    .file-table th.sortable:hover {
       background-color: #edf2f7;
     }
     .file-table tbody tr:hover {
       background-color: #f7fafc;
-    }
-    .delete-btn {
-      color: #e53e3e;
       cursor: pointer;
-      padding: 0.25rem 0.5rem;
-      border-radius: 0.25rem;
-      background: none;
-      border: none;
-      display: flex;
-      align-items: center;
     }
-    .delete-btn:hover {
-      background-color: #fed7d7;
+    .sort-indicator {
+      display: inline-block;
+      margin-left: 0.5rem;
+      opacity: 0.5;
     }
-    .view-logs-btn {
+    .sort-indicator.active {
+      opacity: 1;
+      font-weight: bold;
+    }
+    
+    /* Status badges */
+    .status-badge {
+      display: inline-block;
+      padding: 0.25rem 0.75rem;
+      border-radius: 9999px;
+      font-size: 0.875rem;
+      font-weight: 600;
+      text-align: center;
+    }
+    .status-pending {
+      background-color: #FEF3C7;
+      color: #92400E;
+    }
+    .status-processing {
+      background-color: #DBEAFE;
+      color: #1E3A8A;
+    }
+    .status-completed {
+      background-color: #D1FAE5;
+      color: #065F46;
+    }
+    .status-failed {
+      background-color: #FEE2E2;
+      color: #991B1B;
+    }
+    
+    /* Action buttons */
+    .action-btn {
       color: #3182ce;
       cursor: pointer;
       padding: 0.25rem 0.5rem;
       border-radius: 0.25rem;
       background: none;
       border: none;
-      display: flex;
+      display: inline-flex;
       align-items: center;
       margin-right: 0.5rem;
     }
-    .view-logs-btn:hover {
+    .action-btn:hover {
       background-color: #bee3f8;
     }
-    .error-message {
-      background-color: #FEE2E2;
-      border: 1px solid #F87171;
-      color: #B91C1C;
-      padding: 1rem;
-      border-radius: 0.25rem;
-      margin-bottom: 1rem;
+    .action-btn.delete {
+      color: #e53e3e;
+    }
+    .action-btn.delete:hover {
+      background-color: #fed7d7;
     }
     
-    /* TableSorter specific styles */
-    .tablesorter-header-inner {
+    /* Filters section */
+    .filters-section {
+      background-color: #f7fafc;
+      padding: 1.5rem;
+      border-radius: 0.5rem;
+      margin-bottom: 1.5rem;
+    }
+    .filter-group {
+      display: flex;
+      gap: 1rem;
+      flex-wrap: wrap;
+      align-items: flex-end;
+    }
+    .filter-item {
+      flex: 1;
+      min-width: 200px;
+    }
+    .filter-item label {
+      display: block;
+      font-weight: 600;
+      margin-bottom: 0.5rem;
+      color: #2d3748;
+    }
+    .filter-item input,
+    .filter-item select {
+      width: 100%;
+      padding: 0.5rem;
+      border: 1px solid #cbd5e0;
+      border-radius: 0.25rem;
+    }
+    .filter-item button {
+      padding: 0.5rem 1rem;
+      background-color: #3182ce;
+      color: white;
+      border: none;
+      border-radius: 0.25rem;
+      cursor: pointer;
+      font-weight: 600;
+    }
+    .filter-item button:hover {
+      background-color: #2c5aa0;
+    }
+    .filter-item button.clear {
+      background-color: #718096;
+    }
+    .filter-item button.clear:hover {
+      background-color: #4a5568;
+    }
+    
+    /* Pagination */
+    .pagination {
       display: flex;
       justify-content: space-between;
       align-items: center;
+      margin-top: 1.5rem;
+      padding-top: 1rem;
+      border-top: 1px solid #e2e8f0;
+    }
+    .pagination-info {
+      color: #4a5568;
+    }
+    .pagination-buttons {
+      display: flex;
+      gap: 0.5rem;
+    }
+    .pagination-button {
+      padding: 0.5rem 1rem;
+      border: 1px solid #cbd5e0;
+      background-color: white;
+      border-radius: 0.25rem;
+      cursor: pointer;
+      color: #2d3748;
+    }
+    .pagination-button:hover:not(:disabled) {
+      background-color: #edf2f7;
+    }
+    .pagination-button:disabled {
+      opacity: 0.5;
+      cursor: not-allowed;
+    }
+    .pagination-button.active {
+      background-color: #3182ce;
+      color: white;
+      border-color: #3182ce;
     }
     
     /* Modal styles */
@@ -127,46 +229,13 @@
       background-color: #c53030;
     }
     
-    /* Logs styles */
-    .logs-container {
-      margin-top: 1rem;
-    }
-    .log-entry {
-      padding: 0.75rem;
-      border-left: 3px solid #e2e8f0;
-      margin-bottom: 0.5rem;
-      background-color: #f7fafc;
+    .error-message {
+      background-color: #FEE2E2;
+      border: 1px solid #F87171;
+      color: #B91C1C;
+      padding: 1rem;
       border-radius: 0.25rem;
-    }
-    .log-entry.success {
-      border-left-color: #48bb78;
-      background-color: #f0fff4;
-    }
-    .log-entry.failure {
-      border-left-color: #f56565;
-      background-color: #fff5f5;
-    }
-    .log-entry.in_progress {
-      border-left-color: #4299e1;
-      background-color: #ebf8ff;
-    }
-    .log-step {
-      font-weight: 600;
-      color: #2d3748;
-    }
-    .log-message {
-      color: #4a5568;
-      margin-top: 0.25rem;
-    }
-    .log-timestamp {
-      font-size: 0.875rem;
-      color: #718096;
-      margin-top: 0.25rem;
-    }
-    .no-logs {
-      text-align: center;
-      padding: 2rem;
-      color: #718096;
+      margin-bottom: 1rem;
     }
   </style>
 {% endblock %}
@@ -182,34 +251,130 @@
   </div>
   {% endif %}
 
+  <!-- Filters Section -->
+  <div class="filters-section">
+    <form method="get" action="/files" class="filter-group">
+      <div class="filter-item">
+        <label for="search">Search Filename</label>
+        <input type="text" id="search" name="search" value="{{ search }}" placeholder="Enter filename...">
+      </div>
+      
+      <div class="filter-item">
+        <label for="mime_type">MIME Type</label>
+        <select id="mime_type" name="mime_type">
+          <option value="">All Types</option>
+          {% for mt in mime_types %}
+          <option value="{{ mt }}" {% if mt == mime_type %}selected{% endif %}>{{ mt }}</option>
+          {% endfor %}
+        </select>
+      </div>
+      
+      <div class="filter-item">
+        <label for="status">Status</label>
+        <select id="status" name="status">
+          <option value="">All Statuses</option>
+          <option value="pending" {% if status == "pending" %}selected{% endif %}>Pending</option>
+          <option value="processing" {% if status == "processing" %}selected{% endif %}>Processing</option>
+          <option value="completed" {% if status == "completed" %}selected{% endif %}>Completed</option>
+          <option value="failed" {% if status == "failed" %}selected{% endif %}>Failed</option>
+        </select>
+      </div>
+      
+      <div class="filter-item">
+        <label>&nbsp;</label>
+        <button type="submit">Apply Filters</button>
+      </div>
+      
+      <div class="filter-item">
+        <label>&nbsp;</label>
+        <button type="button" class="clear" onclick="clearFilters()">Clear</button>
+      </div>
+      
+      <!-- Hidden fields to preserve sort order -->
+      <input type="hidden" name="sort_by" value="{{ sort_by }}">
+      <input type="hidden" name="sort_order" value="{{ sort_order }}">
+      <input type="hidden" name="per_page" value="{{ pagination.per_page }}">
+    </form>
+  </div>
   
   <!-- File table -->
   <div class="overflow-x-auto">
     <table class="file-table" id="fileTable">
       <thead>
         <tr>
-          <th>ID</th>
-          <th>Original Filename</th>
-          <th>File Size</th>
-          <th>Mime Type</th>
-          <th>Created At</th>
-          <th class="sorter-false">Actions</th>
+          <th class="sortable" onclick="sortTable('id')">
+            ID
+            <span class="sort-indicator {% if sort_by == 'id' %}active{% endif %}">
+              {% if sort_by == 'id' %}
+                {% if sort_order == 'asc' %}▲{% else %}▼{% endif %}
+              {% else %}
+                ↕
+              {% endif %}
+            </span>
+          </th>
+          <th class="sortable" onclick="sortTable('original_filename')">
+            Original Filename
+            <span class="sort-indicator {% if sort_by == 'original_filename' %}active{% endif %}">
+              {% if sort_by == 'original_filename' %}
+                {% if sort_order == 'asc' %}▲{% else %}▼{% endif %}
+              {% else %}
+                ↕
+              {% endif %}
+            </span>
+          </th>
+          <th class="sortable" onclick="sortTable('file_size')">
+            File Size
+            <span class="sort-indicator {% if sort_by == 'file_size' %}active{% endif %}">
+              {% if sort_by == 'file_size' %}
+                {% if sort_order == 'asc' %}▲{% else %}▼{% endif %}
+              {% else %}
+                ↕
+              {% endif %}
+            </span>
+          </th>
+          <th class="sortable" onclick="sortTable('mime_type')">
+            MIME Type
+            <span class="sort-indicator {% if sort_by == 'mime_type' %}active{% endif %}">
+              {% if sort_by == 'mime_type' %}
+                {% if sort_order == 'asc' %}▲{% else %}▼{% endif %}
+              {% else %}
+                ↕
+              {% endif %}
+            </span>
+          </th>
+          <th>Status</th>
+          <th class="sortable" onclick="sortTable('created_at')">
+            Created At
+            <span class="sort-indicator {% if sort_by == 'created_at' %}active{% endif %}">
+              {% if sort_by == 'created_at' %}
+                {% if sort_order == 'asc' %}▲{% else %}▼{% endif %}
+              {% else %}
+                ↕
+              {% endif %}
+            </span>
+          </th>
+          <th>Actions</th>
         </tr>
       </thead>
       <tbody>
         {% for file in files %}
-        <tr>
+        <tr onclick="viewFileDetail({{ file.id }}, event)">
           <td>{{ file.id }}</td>
           <td>{{ file.original_filename }}</td>
-          <td data-sort-value="{{ file.file_size }}">{{ (file.file_size / 1024) | round(2) }} KB</td>
+          <td>{{ (file.file_size / 1024) | round(2) }} KB</td>
           <td>{{ file.mime_type }}</td>
-          <td>{{ file.created_at }}</td>
+          <td>
+            <span class="status-badge status-{{ file.processing_status }}">
+              {{ file.processing_status | title }}
+            </span>
+          </td>
+          <td>{{ file.created_at.strftime('%Y-%m-%d %H:%M:%S') if file.created_at else 'N/A' }}</td>
           <td>
             <div style="display: flex; align-items: center;">
-              <button onclick="showLogs('{{ file.id }}')" class="view-logs-btn" title="View processing logs">
-                <i class="fas fa-list"></i>
+              <button onclick="viewFileDetail({{ file.id }}, event)" class="action-btn" title="View details">
+                <i class="fas fa-info-circle"></i>
               </button>
-              <button onclick="showDeleteModal('{{ file.id }}')" class="delete-btn" title="Delete file">
+              <button onclick="showDeleteModal({{ file.id }}, event)" class="action-btn delete" title="Delete file">
                 <i class="fas fa-trash"></i>
               </button>
             </div>
@@ -217,13 +382,41 @@
         </tr>
         {% else %}
         <tr>
-          <td colspan="6" class="text-center py-4">No files found</td>
+          <td colspan="7" class="text-center py-4">No files found</td>
         </tr>
         {% endfor %}
       </tbody>
     </table>
   </div>
   
+  <!-- Pagination -->
+  {% if pagination.total_pages > 1 %}
+  <div class="pagination">
+    <div class="pagination-info">
+      Showing {{ ((pagination.page - 1) * pagination.per_page + 1) }} - 
+      {{ min(pagination.page * pagination.per_page, pagination.total_items) }} 
+      of {{ pagination.total_items }} files
+    </div>
+    <div class="pagination-buttons">
+      {% if pagination.page > 1 %}
+      <button class="pagination-button" onclick="goToPage(1)">First</button>
+      <button class="pagination-button" onclick="goToPage({{ pagination.page - 1 }})">Previous</button>
+      {% endif %}
+      
+      {% for p in range(max(1, pagination.page - 2), min(pagination.total_pages + 1, pagination.page + 3)) %}
+      <button class="pagination-button {% if p == pagination.page %}active{% endif %}" onclick="goToPage({{ p }})">
+        {{ p }}
+      </button>
+      {% endfor %}
+      
+      {% if pagination.page < pagination.total_pages %}
+      <button class="pagination-button" onclick="goToPage({{ pagination.page + 1 }})">Next</button>
+      <button class="pagination-button" onclick="goToPage({{ pagination.total_pages }})">Last</button>
+      {% endif %}
+    </div>
+  </div>
+  {% endif %}
+  
   <!-- Delete confirmation modal -->
   <div id="deleteModal" class="modal">
     <div class="modal-content">
@@ -236,82 +429,25 @@
     </div>
   </div>
   
-  <!-- Processing logs modal -->
-  <div id="logsModal" class="modal">
-    <div class="modal-content">
-      <div class="modal-title">Processing Logs</div>
-      <div id="logsContent">
-        <p>Loading logs...</p>
-      </div>
-      <div class="modal-buttons">
-        <button id="closeLogsModal" class="modal-btn modal-btn-cancel">Close</button>
-      </div>
-    </div>
-  </div>
-  
-  <!-- Add JavaScript for handling DELETE requests -->
   <script>
     // Modal functionality
     const deleteModal = document.getElementById('deleteModal');
-    const logsModal = document.getElementById('logsModal');
     const cancelDelete = document.getElementById('cancelDelete');
     const confirmDelete = document.getElementById('confirmDelete');
-    const closeLogsModal = document.getElementById('closeLogsModal');
     let currentFileId = null;
     
-    function showDeleteModal(fileId) {
+    function showDeleteModal(fileId, event) {
+      if (event) event.stopPropagation();
       currentFileId = fileId;
       deleteModal.style.display = 'flex';
     }
     
-    function showLogs(fileId) {
-      logsModal.style.display = 'flex';
-      document.getElementById('logsContent').innerHTML = '<p>Loading logs...</p>';
-      
-      // Fetch logs from API
-      fetch(`/api/logs/file/${fileId}`)
-        .then(response => {
-          if (!response.ok) {
-            throw new Error('Failed to fetch logs');
-          }
-          return response.json();
-        })
-        .then(data => {
-          displayLogs(data);
-        })
-        .catch(error => {
-          console.error('Error:', error);
-          document.getElementById('logsContent').innerHTML = 
-            `<div class="error-message">Error loading logs: ${error.message}</div>`;
-        });
-    }
-    
-    function displayLogs(data) {
-      const logsContent = document.getElementById('logsContent');
-      
-      if (!data.logs || data.logs.length === 0) {
-        logsContent.innerHTML = '<div class="no-logs">No processing logs found for this file.</div>';
-        return;
+    function viewFileDetail(fileId, event) {
+      if (event && event.target.closest('.action-btn')) {
+        return; // Don't navigate if clicking action button
       }
-      
-      let html = '<div class="logs-container">';
-      html += `<h3 style="margin-bottom: 1rem;">File: ${data.file.original_filename}</h3>`;
-      
-      data.logs.forEach(log => {
-        const statusClass = log.status.toLowerCase().replace(' ', '_');
-        const timestamp = new Date(log.timestamp).toLocaleString();
-        
-        html += `
-          <div class="log-entry ${statusClass}">
-            <div class="log-step">${log.step_name} - ${log.status}</div>
-            ${log.message ? `<div class="log-message">${log.message}</div>` : ''}
-            <div class="log-timestamp">${timestamp}</div>
-          </div>
-        `;
-      });
-      
-      html += '</div>';
-      logsContent.innerHTML = html;
+      if (event) event.stopPropagation();
+      window.location.href = `/files/${fileId}/detail`;
     }
     
     cancelDelete.addEventListener('click', () => {
@@ -323,18 +459,11 @@
       deleteModal.style.display = 'none';
     });
     
-    closeLogsModal.addEventListener('click', () => {
-      logsModal.style.display = 'none';
-    });
-    
     // Close modal if clicking outside of it
     window.addEventListener('click', (event) => {
       if (event.target === deleteModal) {
         deleteModal.style.display = 'none';
       }
-      if (event.target === logsModal) {
-        logsModal.style.display = 'none';
-      }
     });
     
     function deleteFile(fileId) {
@@ -357,19 +486,33 @@
       });
     }
     
-    // Initialize TableSorter
-    $(document).ready(function() {
-      $("#fileTable").tablesorter({
-        theme: 'bootstrap',
-        widthFixed: true,
-        headerTemplate: '{content} {icon}',
-        widgets: ['zebra', 'stickyHeaders'],
-        sortList: [[0, 0]], // Default sort on the first column ascending
-        headers: {
-          5: { sorter: false } // Disable sorting on the Actions column
-        }
-      });
-    });
+    function sortTable(column) {
+      const urlParams = new URLSearchParams(window.location.search);
+      const currentSortBy = urlParams.get('sort_by') || 'created_at';
+      const currentSortOrder = urlParams.get('sort_order') || 'desc';
+      
+      // Toggle sort order if clicking the same column
+      let newSortOrder = 'asc';
+      if (column === currentSortBy) {
+        newSortOrder = currentSortOrder === 'asc' ? 'desc' : 'asc';
+      }
+      
+      urlParams.set('sort_by', column);
+      urlParams.set('sort_order', newSortOrder);
+      urlParams.set('page', '1'); // Reset to first page on sort
+      
+      window.location.search = urlParams.toString();
+    }
+    
+    function goToPage(page) {
+      const urlParams = new URLSearchParams(window.location.search);
+      urlParams.set('page', page);
+      window.location.search = urlParams.toString();
+    }
+    
+    function clearFilters() {
+      window.location.href = '/files';
+    }
   </script>
 </div>
 {% endblock %}

tests/test_file_listing.py

@@ -0,0 +1,304 @@
+"""
+Tests for file listing, pagination, filtering, and detail endpoints.
+"""
+import pytest
+from fastapi.testclient import TestClient
+from app.models import FileRecord, ProcessingLog
+from datetime import datetime
+
+
+@pytest.mark.integration
+@pytest.mark.requires_db
+class TestFileListingPagination:
+    """Tests for file listing with pagination, sorting, and filtering."""
+    
+    def test_list_files_empty_with_pagination(self, client: TestClient):
+        """Test listing files when database is empty returns pagination structure."""
+        response = client.get("/api/files")
+        assert response.status_code == 200
+        data = response.json()
+        assert "files" in data
+        assert "pagination" in data
+        assert isinstance(data["files"], list)
+        assert len(data["files"]) == 0
+        assert data["pagination"]["total_items"] == 0
+    
+    def test_list_files_with_data(self, client: TestClient, db_session):
+        """Test listing files with sample data."""
+        # Create sample files
+        for i in range(5):
+            file_record = FileRecord(
+                filehash=f"hash{i}",
+                original_filename=f"test{i}.pdf",
+                local_filename=f"/tmp/test{i}.pdf",
+                file_size=1024 * (i + 1),
+                mime_type="application/pdf"
+            )
+            db_session.add(file_record)
+        db_session.commit()
+        
+        response = client.get("/api/files")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["files"]) == 5
+        assert data["pagination"]["total_items"] == 5
+        assert data["pagination"]["page"] == 1
+    
+    def test_pagination_works(self, client: TestClient, db_session):
+        """Test that pagination correctly limits results."""
+        # Create 10 sample files
+        for i in range(10):
+            file_record = FileRecord(
+                filehash=f"hash{i}",
+                original_filename=f"test{i}.pdf",
+                local_filename=f"/tmp/test{i}.pdf",
+                file_size=1024,
+                mime_type="application/pdf"
+            )
+            db_session.add(file_record)
+        db_session.commit()
+        
+        # Get first page with 5 items per page
+        response = client.get("/api/files?page=1&per_page=5")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["files"]) == 5
+        assert data["pagination"]["page"] == 1
+        assert data["pagination"]["total_pages"] == 2
+        
+        # Get second page
+        response = client.get("/api/files?page=2&per_page=5")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["files"]) == 5
+        assert data["pagination"]["page"] == 2
+    
+    def test_sorting_by_filename(self, client: TestClient, db_session):
+        """Test sorting files by filename."""
+        # Create files with different names
+        for name in ["zebra.pdf", "apple.pdf", "middle.pdf"]:
+            file_record = FileRecord(
+                filehash=name,
+                original_filename=name,
+                local_filename=f"/tmp/{name}",
+                file_size=1024,
+                mime_type="application/pdf"
+            )
+            db_session.add(file_record)
+        db_session.commit()
+        
+        # Sort ascending
+        response = client.get("/api/files?sort_by=original_filename&sort_order=asc")
+        assert response.status_code == 200
+        data = response.json()
+        filenames = [f["original_filename"] for f in data["files"]]
+        assert filenames == ["apple.pdf", "middle.pdf", "zebra.pdf"]
+        
+        # Sort descending
+        response = client.get("/api/files?sort_by=original_filename&sort_order=desc")
+        assert response.status_code == 200
+        data = response.json()
+        filenames = [f["original_filename"] for f in data["files"]]
+        assert filenames == ["zebra.pdf", "middle.pdf", "apple.pdf"]
+    
+    def test_sorting_by_file_size(self, client: TestClient, db_session):
+        """Test sorting files by size."""
+        # Create files with different sizes
+        for i, size in enumerate([5000, 1000, 3000]):
+            file_record = FileRecord(
+                filehash=f"hash{i}",
+                original_filename=f"file{i}.pdf",
+                local_filename=f"/tmp/file{i}.pdf",
+                file_size=size,
+                mime_type="application/pdf"
+            )
+            db_session.add(file_record)
+        db_session.commit()
+        
+        # Sort by size ascending
+        response = client.get("/api/files?sort_by=file_size&sort_order=asc")
+        assert response.status_code == 200
+        data = response.json()
+        sizes = [f["file_size"] for f in data["files"]]
+        assert sizes == [1000, 3000, 5000]
+    
+    def test_search_filter(self, client: TestClient, db_session):
+        """Test searching files by filename."""
+        # Create files with different names
+        for name in ["invoice_2024.pdf", "receipt_2024.pdf", "report.pdf"]:
+            file_record = FileRecord(
+                filehash=name,
+                original_filename=name,
+                local_filename=f"/tmp/{name}",
+                file_size=1024,
+                mime_type="application/pdf"
+            )
+            db_session.add(file_record)
+        db_session.commit()
+        
+        # Search for "2024"
+        response = client.get("/api/files?search=2024")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["files"]) == 2
+        filenames = [f["original_filename"] for f in data["files"]]
+        assert "invoice_2024.pdf" in filenames
+        assert "receipt_2024.pdf" in filenames
+        assert "report.pdf" not in filenames
+    
+    def test_mime_type_filter(self, client: TestClient, db_session):
+        """Test filtering files by MIME type."""
+        # Create files with different MIME types
+        files_data = [
+            ("file1.pdf", "application/pdf"),
+            ("file2.txt", "text/plain"),
+            ("file3.pdf", "application/pdf"),
+        ]
+        for filename, mime_type in files_data:
+            file_record = FileRecord(
+                filehash=filename,
+                original_filename=filename,
+                local_filename=f"/tmp/{filename}",
+                file_size=1024,
+                mime_type=mime_type
+            )
+            db_session.add(file_record)
+        db_session.commit()
+        
+        # Filter by PDF mime type
+        response = client.get("/api/files?mime_type=application/pdf")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["files"]) == 2
+        for file in data["files"]:
+            assert file["mime_type"] == "application/pdf"
+    
+    def test_processing_status_included(self, client: TestClient, db_session):
+        """Test that processing status is included in file listing."""
+        # Create a file
+        file_record = FileRecord(
+            filehash="test_hash",
+            original_filename="test.pdf",
+            local_filename="/tmp/test.pdf",
+            file_size=1024,
+            mime_type="application/pdf"
+        )
+        db_session.add(file_record)
+        db_session.commit()
+        
+        # Add a processing log
+        log = ProcessingLog(
+            file_id=file_record.id,
+            task_id="test_task",
+            step_name="test_step",
+            status="success",
+            message="Test message"
+        )
+        db_session.add(log)
+        db_session.commit()
+        
+        response = client.get("/api/files")
+        assert response.status_code == 200
+        data = response.json()
+        assert len(data["files"]) == 1
+        assert "processing_status" in data["files"][0]
+        assert data["files"][0]["processing_status"]["status"] == "completed"
+
+
+@pytest.mark.integration
+@pytest.mark.requires_db
+class TestFileDetailEndpoint:
+    """Tests for file detail endpoint."""
+    
+    def test_get_file_detail_success(self, client: TestClient, db_session):
+        """Test getting details for an existing file."""
+        # Create a file
+        file_record = FileRecord(
+            filehash="test_hash",
+            original_filename="test.pdf",
+            local_filename="/tmp/test.pdf",
+            file_size=1024,
+            mime_type="application/pdf"
+        )
+        db_session.add(file_record)
+        db_session.commit()
+        
+        # Add processing logs
+        for i, status in enumerate(["success", "in_progress", "success"]):
+            log = ProcessingLog(
+                file_id=file_record.id,
+                task_id=f"task_{i}",
+                step_name=f"step_{i}",
+                status=status,
+                message=f"Message {i}"
+            )
+            db_session.add(log)
+        db_session.commit()
+        
+        response = client.get(f"/api/files/{file_record.id}")
+        assert response.status_code == 200
+        data = response.json()
+        
+        # Check file details
+        assert "file" in data
+        assert data["file"]["id"] == file_record.id
+        assert data["file"]["original_filename"] == "test.pdf"
+        
+        # Check processing status
+        assert "processing_status" in data
+        assert data["processing_status"]["status"] in ["completed", "processing"]
+        
+        # Check logs
+        assert "logs" in data
+        assert len(data["logs"]) == 3
+    
+    def test_get_nonexistent_file_detail(self, client: TestClient):
+        """Test getting details for a non-existent file returns 404."""
+        response = client.get("/api/files/99999")
+        assert response.status_code == 404
+    
+    def test_file_detail_status_determination(self, client: TestClient, db_session):
+        """Test that processing status is correctly determined."""
+        # Create a file
+        file_record = FileRecord(
+            filehash="test_hash",
+            original_filename="test.pdf",
+            local_filename="/tmp/test.pdf",
+            file_size=1024,
+            mime_type="application/pdf"
+        )
+        db_session.add(file_record)
+        db_session.commit()
+        
+        # Test 1: No logs = pending
+        response = client.get(f"/api/files/{file_record.id}")
+        assert response.status_code == 200
+        assert response.json()["processing_status"]["status"] == "pending"
+        
+        # Test 2: Success log = completed
+        log = ProcessingLog(
+            file_id=file_record.id,
+            task_id="task_1",
+            step_name="step_1",
+            status="success"
+        )
+        db_session.add(log)
+        db_session.commit()
+        
+        response = client.get(f"/api/files/{file_record.id}")
+        assert response.status_code == 200
+        assert response.json()["processing_status"]["status"] == "completed"
+        
+        # Test 3: Failure log = failed
+        log2 = ProcessingLog(
+            file_id=file_record.id,
+            task_id="task_2",
+            step_name="step_2",
+            status="failure"
+        )
+        db_session.add(log2)
+        db_session.commit()
+        
+        response = client.get(f"/api/files/{file_record.id}")
+        assert response.status_code == 200
+        assert response.json()["processing_status"]["status"] == "failed"