/// <summary>
/// compare the key of two Availability objects
/// </summary>
/// <param name="ava1"></param>
/// <param name="ava2"></param>
/// <returns></returns>
public static bool isSameKey(Availability ava1, Availability ava2)
{
return(ava1.carrier.id == ava2.carrier.id &&
ava1.product.partNumber == ava2.product.partNumber &&
ava1.store.storeNumber == ava2.store.storeNumber);
}
/// <summary>
/// send email
/// </summary>
private static void notify(Availability[] availability, Availability[] previousAvailability, Configuration config)
{
// count number of available products
int available_count = 0;
{
Dictionary <string /*part number*/, HashSet <string /*carrier id*/> > table = new Dictionary <string, HashSet <string> >();
foreach (var ava in availability)
{
if (!ava.isAvailable)
{
continue;
}
HashSet <string> carriers;
if (table.ContainsKey(ava.product.partNumber))
{
carriers = table[ava.product.partNumber];
}
else
{
carriers = new HashSet <string>();
table.Add(ava.product.partNumber, carriers);
}
if (carriers.Contains(ava.carrier.id))
{
continue;
}
carriers.Add(ava.carrier.id);
available_count++;
}
}
// compose email body
string body = "";
body += "<!DOCTYPE html>";
body += "<html>";
body += "<head>";
body += "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">";
body += "</head>";
body += "<body style=\"font-family: 'Arial';\">";
body += "<div>";
body += "<p>";
body += "<small>Time:</small>";
body += "<br/>";
body += (DateTime.UtcNow + TimeSpan.FromHours(8)).ToString("yyyy-MM-dd HH:mm:ss") + " HKT";
body += "</p>";
body += "</div>";
body += "<div>";
body += "<p>";
body += "<small>Zip code:</small>";
body += "<br/>";
body += config.zipCode;
body += "</p>";
body += "</div>";
body += "<div>";
body += "<p>";
body += "<small>Available for pickup:</small>";
body += "<br/>";
body += (available_count == 0 ? "Nothing" : (available_count + " models"));
body += "</p>";
body += "</div>";
body += "<div>";
{
Dictionary <string, Carrier> carriers = new Dictionary <string, Carrier>();
Dictionary <string, Product> products = new Dictionary <string, Product>();
foreach (var ava in availability)
{
if (!products.ContainsKey(ava.product.partNumber))
{
products.Add(ava.product.partNumber, ava.product);
}
if (!carriers.ContainsKey(ava.carrier.id))
{
carriers.Add(ava.carrier.id, ava.carrier);
}
}
foreach (var ava in previousAvailability)
{
if (!products.ContainsKey(ava.product.partNumber))
{
products.Add(ava.product.partNumber, ava.product);
}
if (!carriers.ContainsKey(ava.carrier.id))
{
carriers.Add(ava.carrier.id, ava.carrier);
}
}
foreach (var carrier in carriers.Values)
{
foreach (var product in products.Values)
{
body += "<div>";
body += "<p>";
body += product.name + " (" + carrier.name + ")";
body += "<br/>";
var ava_new_all = availability.Where(a => a.carrier.id == carrier.id && a.product.partNumber == product.partNumber && a.isAvailable).ToArray();
var ava_prev_all = previousAvailability.Where(a => a.carrier.id == carrier.id && a.product.partNumber == product.partNumber && a.isAvailable).ToArray();
bool newly_available = ava_new_all.Length > 0;
bool previously_available = ava_prev_all.Length > 0;
if (!newly_available && !previously_available)
{
body += "Unavailable<br/>";
}
else
{
foreach (var ava_new in ava_new_all)
{
var ava_prev = ava_prev_all.FirstOrDefault(a => Availability.isSameKey(ava_new, a));
body += "- " + ava_new.store.name;
if (ava_prev == null) // newly found
{
body += " <small><font color=\"blue\">[new]</font></small>";
}
body += "<br/>";
}
foreach (var ava_prev in ava_prev_all)
{
var ava_new = ava_new_all.FirstOrDefault(a => Availability.isSameKey(ava_prev, a));
if (ava_new != null)
{
continue; // no change, already outputted in the previous loop, skip
}
body += "- <strike>" + ava_prev.store.name + "</strike>";
body += "<br/>";
}
}
body += "</p>";
body += "</div>";
}
}
}
body += "</div>";
body += "<div>";
body += "<p><a href=\"" + config.reserveUrl + "\">Click here to reserve</a></p>";
body += "</div>";
body += "</body>";
body += "</html>";
// send
Gmail gmail = new Gmail()
{
GmailId = config.notification.sender,
GmailPassword = config.notification.senderPassword,
To = config.notification.recipients,
IsHtml = true,
Subject = "iPhone X pickup availability " + (DateTime.UtcNow + TimeSpan.FromHours(8)).ToString("yyyy-MM-dd HH:mm") + " HKT",
Body = body
};
gmail.Send();
}