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// See CSHARP-README.txt for information and build instructions.
using System;
using System.IO;
using Tutorial;
class AddPerson {
// This function fills in a Person message based on user input.
static Person PromptForAddress(TextReader input, TextWriter output) {
Person.Builder person = Person.CreateBuilder();
output.Write("Enter person ID: ");
person.Id = int.Parse(input.ReadLine());
output.Write("Enter name: ");
person.Name = input.ReadLine();
output.Write("Enter email address (blank for none): ");
string email = input.ReadLine();
if (email.Length > 0) {
person.Email = email;
}
while (true) {
output.Write("Enter a phone number (or leave blank to finish): ");
string number = input.ReadLine();
if (number.Length == 0) {
break;
}
Person.Types.PhoneNumber.Builder phoneNumber =
Person.Types.PhoneNumber.CreateBuilder().SetNumber(number);
output.Write("Is this a mobile, home, or work phone? ");
String type = input.ReadLine();
switch (type) {
case "mobile":
phoneNumber.Type = Person.Types.PhoneType.MOBILE;
break;
case "home":
phoneNumber.Type = Person.Types.PhoneType.HOME;
break;
case "work":
phoneNumber.Type = Person.Types.PhoneType.WORK;
break;
default:
Console.WriteLine("Unknown phone type. Using default.");
break;
}
person.AddPhone(phoneNumber);
}
return person.Build();
}
// Main function: Reads the entire address book from a file,
// adds one person based on user input, then writes it back out to the same
// file.
public static int Main(string[] args) {
if (args.Length != 1) {
Console.Error.WriteLine("Usage: AddPerson ADDRESS_BOOK_FILE");
return -1;
}
AddressBook.Builder addressBook = AddressBook.CreateBuilder();
if (File.Exists(args[0])) {
using (Stream file = File.OpenRead(args[0])) {
addressBook.MergeFrom(file);
}
} else {
Console.WriteLine("{0}: File not found. Creating a new file.", args[0]);
}
// Add an address.
addressBook.AddPerson(PromptForAddress(Console.In, Console.Out));
// Write the new address book back to disk.
using (Stream output = File.OpenWrite(args[0])) {
addressBook.Build().WriteTo(output);
}
return 0;
}
}
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