public ActionResult Rent(VideoRentViewModel model)
{
Video video = db.Videos.Include(v => v.Copies)
.SingleOrDefault(v => v.ID == model.ID && v.Copies.Where(c => c.RentedDate == null).Count() > 0);
if (video == null)
{
return(HttpNotFound());
}
DateTime now = DateTime.UtcNow;
VideoCopy copy = video.Copies.Where(c => c.RentedDate == null).First();
copy.RentedDate = now;
copy.RenterID = UserID;
copy.RentedDays = model.Days;
db.Entry(copy).State = EntityState.Modified;
UserHistory history = new UserHistory();
history.Copy = copy;
history.ID = Guid.NewGuid();
history.PointsEarned = (video.Age == VideoAge.New ? 2 : 1);
history.RentedDate = now;
history.RentedDays = model.Days;
history.UserID = UserID;
db.UserHistory.Add(history);
db.SaveChanges();
return(Json(true, JsonRequestBehavior.AllowGet));
}
public ActionResult Return(Guid id)
{
VideoCopy copy = db.VideoCopies.Include(c => c.Video).Where(c => c.ID == id && c.RentedDate != null).SingleOrDefault();
if (copy == null) // Copy not rented out
{
return(HttpNotFound());
}
copy.RentedDate = null;
copy.RenterID = null;
copy.RentedDays = 0;
db.Entry(copy).State = EntityState.Modified;
UserHistory historyEntry = db.UserHistory.Where(h => h.CopyID == copy.ID && h.ReturnedDate == null).SingleOrDefault();
if (historyEntry == null)
{
// Not rented out to this user
return(HttpNotFound());
}
historyEntry.ReturnedDate = DateTime.UtcNow;
db.SaveChanges();
return(RedirectToAction("Details", "Videos", new { id = copy.VideoID }));
}
public ActionResult DeleteConfirmed(Guid id)
{
VideoCopy videoCopy = db.VideoCopies.Find(id);
db.VideoCopies.Remove(videoCopy);
db.SaveChanges();
return(RedirectToAction("Index"));
}
public ActionResult Edit([Bind(Include = "ID,RentedDate,RentedDays")] VideoCopy videoCopy)
{
if (ModelState.IsValid)
{
db.Entry(videoCopy).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(videoCopy));
}
public ActionResult Create([Bind(Include = "ID,RentedDate,RentedDays")] VideoCopy videoCopy)
{
if (ModelState.IsValid)
{
videoCopy.ID = Guid.NewGuid();
db.VideoCopies.Add(videoCopy);
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(videoCopy));
}
// GET: VideoCopies/Details/5
public ActionResult Details(Guid?id)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
VideoCopy videoCopy = db.VideoCopies.Find(id);
if (videoCopy == null)
{
return(HttpNotFound());
}
return(View(videoCopy));
}
public IHttpActionResult Create(Guid videoID)
{
Video video = db.Videos.Find(videoID);
if (video == null)
{
return(NotFound());
}
// Shortcut, because we don't need to add any data to a new copy.
VideoCopy copy = new VideoCopy();
copy.Video = video;
copy.ID = Guid.NewGuid();
db.VideoCopies.Add(copy);
db.SaveChanges();
return(Ok <VideoCopy>(copy));
}
/// <summary>
/// deflates (zlib) a VideoCopy, returning a byte array suitable for insertion into a JMD file
/// the byte array includes width and height dimensions at the beginning
/// this is run asynchronously for speedup, as compressing can be slow
/// </summary>
/// <param name="v">video frame to compress</param>
/// <returns>zlib compressed frame, with width and height prepended</returns>
byte[] GzipFrame(VideoCopy v)
{
MemoryStream m = new MemoryStream();
// write frame height and width first
m.WriteByte((byte)(v.BufferWidth >> 8));
m.WriteByte((byte)(v.BufferWidth & 255));
m.WriteByte((byte)(v.BufferHeight >> 8));
m.WriteByte((byte)(v.BufferHeight & 255));
var g = new DeflaterOutputStream(m, new Deflater(token.compressionlevel));
g.IsStreamOwner = false; // leave memory stream open so we can pick its contents
g.Write(v.VideoBuffer, 0, v.VideoBuffer.Length);
g.Flush();
g.Close();
byte[] ret = m.GetBuffer();
Array.Resize(ref ret, (int)m.Length);
m.Close();
return(ret);
}
/// <summary>
/// deflates (zlib) a VideoCopy, returning a byte array suitable for insertion into a JMD file
/// the byte array includes width and height dimensions at the beginning
/// this is run asynchronously for speedup, as compressing can be slow
/// </summary>
/// <param name="v">video frame to compress</param>
/// <returns>zlib compressed frame, with width and height prepended</returns>
private byte[] GzipFrame(VideoCopy v)
{
var m = new MemoryStream();
// write frame height and width first
m.WriteByte((byte)(v.BufferWidth >> 8));
m.WriteByte((byte)(v.BufferWidth & 255));
m.WriteByte((byte)(v.BufferHeight >> 8));
m.WriteByte((byte)(v.BufferHeight & 255));
var g = new GZipStream(m, GetCompressionLevel(_token.CompressionLevel), true); // leave memory stream open so we can pick its contents
g.Write(v.VideoBuffer, 0, v.VideoBuffer.Length);
g.Flush();
g.Close();
byte[] ret = m.GetBuffer();
Array.Resize(ref ret, (int)m.Length);
m.Close();
return(ret);
}
private double GetLateFee(VideoCopy copy)
{
double lateFee = 0;
DateTime dueDate = copy.RentedDate != null ? ((DateTime)copy.RentedDate).AddDays(copy.RentedDays) : default(DateTime);
if (dueDate != default(DateTime) && dueDate < DateTime.UtcNow)
{
// Late return
// I'm assuming that for old films, we will still charge
// late rent even if their rental period is shorter than the
// minimum rental time. IE, if they say the want to rent for 2 days,
// they still pay the minimum of 5 days, and if they return after 4 days,
// they get charged for 2 days late rent.
TimeSpan overdue = DateTime.UtcNow - dueDate;
lateFee = (overdue.Days + 1) * (copy.Video.Age == VideoAge.New ? GlobalValues.NewReleasePrice : GlobalValues.RegularReleasePrice);
}
return(lateFee);
}
/// <summary>
/// Rent a particual video, if available.
/// </summary>
/// <param name="model"></param>
/// <returns></returns>
public IHttpActionResult Rent(VideoRentViewModel model)
{
// Note that I would prefer to have a service deal with the renting
// and other operations on videos or video copies because
// this code is duplicated in the api service. I'm not doing that here
// to avoid complexity.
//
// The call the could be service.Rent(model.ID, UserID, days); for both
// uses.
Video video = db.Videos.Include(v => v.Copies)
.SingleOrDefault(v => v.ID == model.ID && v.Copies.Where(c => c.RentedDate == null).Count() > 0);
if (video == null)
{
return(NotFound());
}
DateTime now = DateTime.UtcNow;
VideoCopy copy = video.Copies.Where(c => c.RentedDate == null).First();
copy.RentedDate = now;
copy.RenterID = UserID;
copy.RentedDays = model.Days;
db.Entry(copy).State = EntityState.Modified;
UserHistory history = new UserHistory();
history.Copy = copy;
history.ID = Guid.NewGuid();
history.PointsEarned = (video.Age == VideoAge.New ? 2 : 1);
history.RentedDate = now;
history.RentedDays = model.Days;
history.UserID = UserID;
db.UserHistory.Add(history);
db.SaveChanges();
return(Json(history));
}
// GET: VideoCopies/Create
public ActionResult Create(Guid videoID)
{
Video video = db.Videos.Find(videoID);
if (video == null)
{
return(HttpNotFound());
}
// Shortcut, because we don't need to add any data to a new copy.
VideoCopy copy = new VideoCopy();
copy.Video = video;
copy.ID = Guid.NewGuid();
db.VideoCopies.Add(copy);
db.SaveChanges();
return(RedirectToAction("Details", "Videos", new { id = video.ID }));
// This shows as not reachable because of the above shortcut.
var model = new VideoFrontPageViewModel();
return(View());
}
/// <summary>
/// deflates (zlib) a VideoCopy, returning a byte array suitable for insertion into a JMD file
/// the byte array includes width and height dimensions at the beginning
/// this is run asynchronously for speedup, as compressing can be slow
/// </summary>
/// <param name="v">video frame to compress</param>
/// <returns>zlib compressed frame, with width and height prepended</returns>
byte[] GzipFrame(VideoCopy v)
{
MemoryStream m = new MemoryStream();
// write frame height and width first
m.WriteByte((byte)(v.BufferWidth >> 8));
m.WriteByte((byte)(v.BufferWidth & 255));
m.WriteByte((byte)(v.BufferHeight >> 8));
m.WriteByte((byte)(v.BufferHeight & 255));
var g = new DeflaterOutputStream(m, new Deflater(token.compressionlevel));
g.IsStreamOwner = false; // leave memory stream open so we can pick its contents
g.Write(v.VideoBuffer, 0, v.VideoBuffer.Length);
g.Flush();
g.Close();
byte[] ret = m.GetBuffer();
Array.Resize(ref ret, (int)m.Length);
m.Close();
return ret;
}
