#import "SerialPortDemoController.h"

@implementation SerialPortDemoController

-(void)awakeFromNib
{
    int i;
    NSArray *portNames;

    serialPort = [[SerialPort alloc] init];
    portNames = [serialPort availableSerialPorts];
    
    [portList removeAllItems];
    for( i=0; i<[portNames count]; i++) {
	[portList addItemWithTitle:[portNames objectAtIndex:i]];
    }

}

- (IBAction)onConnect:(id)sender
{
    bool isOpen = NO, isSetUp = NO;
    NSString *desiredPortName = [portList titleOfSelectedItem];
    if( serialPort != NULL) {
    
	isOpen = [serialPort openPort:desiredPortName];
	if( isOpen ) // we can configure the port now
	{
	    isSetUp = [serialPort configurePort:9600 dataBits:8 parity:0 stopBits:0];
	    if( !isSetUp ) {
		NSLog(@"Port configuration has failed!");
	    }
	    // setup the timer to read the data every second
	    timer = [NSTimer scheduledTimerWithTimeInterval:1 target: self
			selector: @selector(handleTimer:) userInfo: nil repeats:YES];
			
	    [connectButton setTitle:@"Disconnect"];
	    [connectButton setAction:@selector( onDisconnect: )];
	}
    }
}

- (IBAction)onDisconnect:(id)sender
{
    if( serialPort != NULL ) {
	[timer invalidate];
	[serialPort closePort];
	[connectButton setAction:@selector( onConnect: )];
	[connectButton setTitle:@"Connect"];
    }
}


- (IBAction)onWrite:(id)sender
{
    NSString *stringValue;
    NSData *dataToWrite;
    if( serialPort != NULL ) {
	stringValue = [writeTextField stringValue];
	dataToWrite = [[NSData dataWithBytes:[stringValue cString] length:[stringValue length]] retain];
	[serialPort WritePort:dataToWrite];
	[dataToWrite release];
    }

}


-(void) handleTimer: (NSTimer *) timer
{
    NSData *serialData;
    char *str_data;
    serialData = [serialPort ReadPort];
    if( serialData != NULL) {
	str_data = [serialData bytes];
	[readTextView insertText:[NSString stringWithCString:[serialData bytes] length:[serialData length]]];
    }
}

@end