/****************************************************************************
**
** Copyright (C) 2018 Ivan Komissarov (abbapoh@gmail.com)
** Contact: https://www.qt.io/licensing/
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** This file is part of the examples of Qbs.
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#import "Addressbook.pbobjc.h"

#import <Foundation/Foundation.h>

int printUsage(char *argv0)
{
    NSString *programName = [[NSString alloc] initWithUTF8String:argv0];
    NSLog(@"Usage: %@ add|list ADDRESS_BOOK_FILE", programName);
    return -1;
}

NSString *readString(NSString *promt)
{
    NSLog(@"%@", promt);
    NSFileHandle *inputFile = [NSFileHandle fileHandleWithStandardInput];
    NSData *inputData = [inputFile availableData];
    NSString *result = [[NSString alloc] initWithData:inputData encoding:NSUTF8StringEncoding];
    result = [result stringByTrimmingCharactersInSet:
            [NSCharacterSet whitespaceAndNewlineCharacterSet]];
    return result;
}

// This function fills in a Person message based on user input.
void promptForAddress(Person* person)
{
    person.id_p = [readString(@"Enter person ID number:") intValue];
    person.name = readString(@"Enter name:");

    NSString *email = readString(@"Enter email address (blank for none):");
    if ([email length] != 0)
        person.email = email;

    while (true) {
        NSString *number = readString(@"Enter a phone number (or leave blank to finish):");
        if ([number length] == 0)
            break;

        Person_PhoneNumber* phoneNumber = [[Person_PhoneNumber alloc] init];
        phoneNumber.number = number;

        NSString *type = readString(@"Is this a mobile, home, or work phone?:");
        NSLog(@"\"%@\"", type);
        if ([type compare:@"mobile"] == NSOrderedSame)
            phoneNumber.type = Person_PhoneType_Mobile;
        else if ([type compare:@"home"] == NSOrderedSame)
            phoneNumber.type = Person_PhoneType_Home;
        else if ([type compare:@"work"] == NSOrderedSame)
            phoneNumber.type = Person_PhoneType_Work;
        else
            NSLog(@"Unknown phone type. Using default.");

        [person.phonesArray addObject:phoneNumber];
    }
}

// Iterates though all people in the AddressBook and prints info about them.
void listPeople(AddressBook *addressBook)
{
    for (Person *person in addressBook.peopleArray) {
        NSLog(@"Person ID: %d", person.id_p);
        NSLog(@"Person name: %@", person.name);

        if ([person.email length] != 0) {
            NSLog(@"E-mail address: %@", person.email);
        }

        for (Person_PhoneNumber *phoneNumber in person.phonesArray) {
            NSString *phonePrefix;

            switch (phoneNumber.type) {
            case Person_PhoneType_Mobile:
                phonePrefix = @"Mobile phone";
                break;
            case Person_PhoneType_Home:
                phonePrefix = @"Home phone";
                break;
            case Person_PhoneType_Work:
                phonePrefix = @"Work phone";
                break;
            default:
                phonePrefix = @"Unknown phone";
                break;
            }

            NSLog(@"  %@ #: %@", phonePrefix, phoneNumber.number);
        }
        printf("\n");
    }
}

int main(int argc, char *argv[])
{
    if (argc != 3)
        return printUsage(argv[0]);

    @autoreleasepool
    {
        AddressBook *addressBook;
        NSString *filePath = [[NSString alloc] initWithUTF8String:argv[2]];

        // Read the existing address book.
        NSData *data = [NSData dataWithContentsOfFile:filePath];
        if (!data) {
            NSLog(@"%@ : File not found.", filePath);
            addressBook = [[AddressBook alloc] init];
        } else {
            NSError *error;
            addressBook = [AddressBook parseFromData:data error:&error];
            if (!addressBook) {
                NSLog(@"Failed to parse address book.");
                return -1;
            }
        }

        if (strcmp(argv[1], "add") == 0) {
            // Add an address.
            Person *person = [[Person alloc] init];
            promptForAddress(person);
            [addressBook.peopleArray addObject:person];

            if (!data) {
                NSLog(@"Creating a new file.");
            }
            [[addressBook data] writeToFile:filePath atomically:YES];
        } else if (strcmp(argv[1], "list") == 0) {
            listPeople(addressBook);
        } else {
            return printUsage(argv[0]);
        }

        return 0;
    }
}