//
//  MPDocument.m
//  MathPad
//
//  Created by Kim Wittenburg on 23.03.14.
//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
//

#import "MPDocument.h"

@implementation MPDocument

- (id)init
{
    self = [super init];
    if (self) {
        // Add your subclass-specific initialization here.
    }
    return self;
}

- (NSString *)windowNibName
{
    // Override returning the nib file name of the document
    // If you need to use a subclass of NSWindowController or if your document supports multiple NSWindowControllers, you should remove this method and override -makeWindowControllers instead.
    return @"MPDocument";
}

- (void)windowControllerDidLoadNib:(NSWindowController *)aController
{
    [super windowControllerDidLoadNib:aController];
    self.expressionView.target = self;
    self.expressionView.action = @selector(evaluateExpression:);
    // Add any code here that needs to be executed once the windowController has loaded the document's window.
}

+ (BOOL)autosavesInPlace
{
    return YES;
}

- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError
{
    // Insert code here to write your document to data of the specified type. If outError != NULL, ensure that you create and set an appropriate error when returning nil.
    // You can also choose to override -fileWrapperOfType:error:, -writeToURL:ofType:error:, or -writeToURL:ofType:forSaveOperation:originalContentsURL:error: instead.
    NSException *exception = [NSException exceptionWithName:@"UnimplementedMethod" reason:[NSString stringWithFormat:@"%@ is unimplemented", NSStringFromSelector(_cmd)] userInfo:nil];
    @throw exception;
    return nil;
}

- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError
{
    // Insert code here to read your document from the given data of the specified type. If outError != NULL, ensure that you create and set an appropriate error when returning NO.
    // You can also choose to override -readFromFileWrapper:ofType:error: or -readFromURL:ofType:error: instead.
    // If you override either of these, you should also override -isEntireFileLoaded to return NO if the contents are lazily loaded.
    NSException *exception = [NSException exceptionWithName:@"UnimplementedMethod" reason:[NSString stringWithFormat:@"%@ is unimplemented", NSStringFromSelector(_cmd)] userInfo:nil];
    @throw exception;
    return YES;
}

#pragma mark Actions
- (IBAction)evaluateExpression:(id)sender {
    MPParseError *error;
    NSDecimalNumber *result = [self.expressionView.expressionStorage evaluateWithError:&error];
    self.expressionView.error = error;
    self.resultLabel.stringValue = result != nil ? [result descriptionWithLocale:[NSLocale currentLocale]] : @"";
}

@end