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