TaskSelector.m

/*
 Copyright (c) 2008, 2ndSite Inc.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 
 * Redistributions of source code must retain the above copyright notice,
 this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 notice, this list of conditions and the following disclaimer in the
 documentation and/or other materials provided with the distribution.
 * Neither the name of the <ORGANIZATION> nor the names of its
 contributors may be used to endorse or promote products derived from this
 software without specific prior written permission.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#import "TaskSelector.h"
#import "FreshbooksAPI.h"
#import "MainViewController.h"
#import "ProjectSelector.h"


@implementation TaskSelector

@synthesize mainViewController;
@synthesize taskTextLabel;
@synthesize modalBackdrop;
@synthesize selectedTask;
@synthesize selectedProject;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
	if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
		//hidden to start
		self.view.frame = CGRectMake(0.0, 460.0, self.view.frame.size.width, self.view.frame.size.height);
		
		[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(projectDataChanged:) name:@"ProjectDataChanged" object:nil];
		[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(selectedProjectChanged:) name:@"SelectedProjectChanged" object:nil];
	}
	return self;
}

- (void)viewDidLoad {
	taskPicker.delegate = self;
	taskPicker.dataSource = self;
}


- (void)projectDataChanged:(NSNotification *) notification {
	//update view and revalidate
	[taskPicker reloadAllComponents];
	[self verifySelectedTask];
}

- (void)selectedProjectChanged:(NSNotification *) notification {
	self.selectedProject = [notification.object selectedProject];
	[taskPicker reloadAllComponents];
	[self verifySelectedTask];
}

- (void) verifySelectedTask {
	// Make sure selected task still exists
	if(self.selectedTask){
		if(self.selectedProject){
			NSMutableArray *tasks = [self.selectedProject valueForKey:@"tasks"];
			BOOL taskStillExists = NO;
			for (NSInteger i = 0; i < [tasks count]; ++i) {
				if([[self.selectedTask valueForKey:@"id"] compare: [[tasks objectAtIndex:i] valueForKey:@"id"]] == NSOrderedSame){
					//NSLog(@"task found: %@, %@",[self.selectedTask valueForKey:@"id"], [[tasks objectAtIndex:i] valueForKey:@"id"]);
					taskStillExists = YES;
					[self setSelectedTaskByIndex:i];
				}
			}
			
			if(!taskStillExists){
				//NSLog(@"task not found.  clearing: %@",[self.selectedTask valueForKey:@"id"]);
				[self clearSelectedTask];
			}
		}
		else {
			// no selected project.  clear task
			[self clearSelectedTask];
		}
	}
}

- (void) show {
	if([[self.selectedProject valueForKey:@"tasks"] count] > 0){
		[UIButton beginAnimations:nil context:nil];
		self.view.frame = CGRectMake(0.0, 200.0, self.view.frame.size.width, self.view.frame.size.height);
		modalBackdrop.alpha = 0.5;
		[UIButton commitAnimations];
		[mainViewController.rootViewController hideTabBar];
	}
	else{
		[mainViewController.rootViewController showSettingsView];
		[[[[UIAlertView alloc] initWithTitle:@"Project Has No Tasks" message:@"Please enable tasks for this project, then tap Refresh Data." delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil] autorelease] show];
	}
}

- (IBAction) doneButtonClicked:(id)sender {
	[self setSelectedTaskByIndex:[taskPicker selectedRowInComponent:0]];
	[self hide];
}

- (void)hide {
	[UIButton beginAnimations:nil context:nil];
	self.view.frame = CGRectMake(0.0, 460.0, self.view.frame.size.width, self.view.frame.size.height);
	modalBackdrop.alpha = 0.0;
	[UIButton commitAnimations];
	[mainViewController.rootViewController showTabBar];
}

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
	return 1;
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
	if([[self.selectedProject valueForKey:@"tasks"] count]){
		return [[self.selectedProject valueForKey:@"tasks"] count];
	}
	else{
		return 1;
	}
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
	if([[self.selectedProject valueForKey:@"tasks"] count]){
		return [[[self.selectedProject valueForKey:@"tasks"] objectAtIndex:row] valueForKey:@"name"];
	}
	else{
		return @"This project has no tasks.";
	}
}

- (void)clearSelectedTask {
	self.selectedTask = nil;
	[mainViewController selectedTaskDidUpdate:selectedTask];
}

- (void)setSelectedTaskByIndex:(NSInteger)row {
	if([[self.selectedProject valueForKey:@"tasks"] count] > 0){
		self.selectedTask = [[self.selectedProject valueForKey:@"tasks"] objectAtIndex:row];
		[mainViewController selectedTaskDidUpdate:selectedTask];
		[taskPicker selectRow:row inComponent:0 animated:NO];
	}
	else {
		[mainViewController.rootViewController showSettingsView];
		[[[[UIAlertView alloc] initWithTitle:@"Project Has No Tasks" message:@"Please enable tasks for this project, then tap Refresh Data." delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil] autorelease] show];
		[self hide];
	}
}

- (void)setSelectedTaskById:(NSString *)tid {
	[tid retain];
	NSMutableArray *td = [self.selectedProject valueForKey:@"tasks"];
	for(NSInteger i = 0; i < [td count]; ++i){
		NSString *indexId = [[td objectAtIndex:i] valueForKey:@"id"];
		if([indexId caseInsensitiveCompare: tid] == NSOrderedSame){
			[self setSelectedTaskByIndex:i];
		}
	}
	[tid release];
}

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
	[self setSelectedTaskByIndex:row];
}



@end