//
//  PSApplication.m
//  Pester
//
//  Created by Nicholas Riley on Fri Oct 11 2002.
//  Copyright (c) 2002 Nicholas Riley. All rights reserved.
//

#import "PSApplication.h"
#import "PSAlarmSetController.h"
#import "PSAlarmAlertController.h"
#import "PSAlarmsController.h"
#import "PSAlarm.h"
#import "PSAlarms.h"
#import "PSTimer.h"

@implementation PSApplication

- (void)finishLaunching;
{
    appIconImage = [[NSImage imageNamed: @"NSApplicationIcon"] retain];
    [[NSNotificationCenter defaultCenter] addObserver: [PSAlarmAlertController class] selector: @selector(controllerWithTimerExpiredNotification:) name: PSAlarmTimerExpiredNotification object: nil];
    [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(nextAlarmDidChange:) name: PSAlarmsNextAlarmDidChangeNotification object: nil];
    // XXX exception handling
    [PSAlarms setUp];
    [self setDelegate: self];
    [super finishLaunching];
}

- (IBAction)showHelp:(id)sender;
{
    [[NSWorkspace sharedWorkspace] openFile: [[NSBundle mainBundle] pathForResource: @"Read Me" ofType: @"rtfd"]];
}

- (IBAction)stopAlerts:(id)sender;
{
    [PSAlarmAlertController stopAlerts: sender];
}	

- (IBAction)orderFrontSetAlarmPanel:(id)sender;
{
    [NSApp activateIgnoringOtherApps: YES];
    [alarmSetController showWindow: self];
}

- (IBAction)orderFrontAlarmsPanel:(id)sender;
{
    [NSApp activateIgnoringOtherApps: YES];
    if (alarmsController == nil) {
        alarmsController = [[PSAlarmsController alloc] init];
    }
    [alarmsController showWindow: self];
}

- (void)_resetUpdateTimer;
{
    if (dockUpdateTimer != nil) {
        [dockUpdateTimer invalidate];
        [dockUpdateTimer release];
        dockUpdateInterval = 0;
        dockUpdateTimer = nil;
    }
}

- (void)_setUpdateTimerForInterval:(NSTimeInterval)interval alarm:(PSAlarm *)alarm repeats:(BOOL)repeats;
{
    dockUpdateTimer = [PSTimer scheduledTimerWithTimeInterval: interval target: self selector: @selector(_updateDockTile:) userInfo: alarm repeats: repeats];
    [dockUpdateTimer retain];
    dockUpdateInterval = interval; // because [timer timeInterval] always returns 0 once set
}

- (void)_updateDockTile:(PSTimer *)timer;
{
    PSAlarm *alarm = [timer userInfo];
    NSTimeInterval timeRemaining;
    NSString *tileString;
    if (timer == nil) alarm = [[PSAlarms allAlarms] nextAlarm];
    if (alarm == nil) return;
    tileString = [alarm timeRemainingString];
    timeRemaining = [alarm timeRemaining]; // want to err on the side of timeRemaining being smaller, otherwise ÇexpiredÈ can appear
    {
        NSMutableDictionary *atts = [NSMutableDictionary dictionary];
        NSSize imageSize = [appIconImage size];
        NSImage *tile = [[NSImage alloc] initWithSize: imageSize];
        NSSize textSize;
        NSPoint textOrigin;
        NSRect frameRect;
        float fontSize = 37;
        
        do {
            fontSize -= 1;
            [atts setObject: [NSFont boldSystemFontOfSize: fontSize] forKey: NSFontAttributeName];
            textSize = [tileString sizeWithAttributes: atts];
        } while (textSize.width > imageSize.width - 8);

        textOrigin = NSMakePoint(imageSize.width / 2 - textSize.width / 2,
                                 imageSize.height / 2 - textSize.height / 2);
        frameRect = NSInsetRect(NSMakeRect(textOrigin.x, textOrigin.y, textSize.width, textSize.height),
                                -4, -2);
        
        [tile lockFocus];
        // draw the grayed-out app icon
        [appIconImage dissolveToPoint: NSZeroPoint fraction: 0.5];
        // draw the frame
        [[NSColor colorWithCalibratedWhite: 0.1 alpha: 0.5] set];
        NSRectFill(frameRect);
        // draw a gray two-pixel text shadow
        [atts setObject: [NSColor grayColor] forKey: NSForegroundColorAttributeName];
        textOrigin.x++; textOrigin.y--;
        [tileString drawAtPoint: textOrigin withAttributes: atts];
        textOrigin.x++; textOrigin.y--;
        [tileString drawAtPoint: textOrigin withAttributes: atts];
        // draw white text
        textOrigin.x -= 2; textOrigin.y += 2;
        [atts setObject: [NSColor whiteColor] forKey: NSForegroundColorAttributeName];
        [tileString drawAtPoint: textOrigin withAttributes: atts];
        
        [tile unlockFocus];
        [NSApp setApplicationIconImage: tile];
        [tile release];
    }
    // NSLog(@"_updateDockTile > time remaining %@ (%.6lf), last time interval %.6lf", tileString, timeRemaining, dockUpdateInterval);
    if (timeRemaining > 61) {
        NSTimeInterval nextUpdate = ((unsigned long long)timeRemaining) % 60;
        if (nextUpdate <= 1) nextUpdate = 60;
        [self _resetUpdateTimer];
        [self _setUpdateTimerForInterval: nextUpdate alarm: alarm repeats: NO];
        // NSLog(@"_updateDockTile > set timer for %.0lf seconds", nextUpdate);
    } else if (timer == nil || dockUpdateInterval > 1) {
        [self _resetUpdateTimer]; 
        [self _setUpdateTimerForInterval: 1 alarm: alarm repeats: YES];
        // NSLog(@"_updateDockTile > set timer for 1 second");
    } else if (timeRemaining <= 1) {
        [self _resetUpdateTimer];
    }
}

- (void)nextAlarmDidChange:(NSNotification *)notification;
{
    PSAlarm *nextAlarm = [notification object];
    // NSLog(@"nextAlarmDidChange: %@", nextAlarm);
    [self _resetUpdateTimer];
    if (nextAlarm == nil) {
        [NSApp setApplicationIconImage: appIconImage];
    } else {
        [self _updateDockTile: nil];
    }
}

@end

@implementation PSApplication (NSApplicationDelegate)

- (BOOL)applicationShouldHandleReopen:(NSApplication *)sender hasVisibleWindows:(BOOL)flag;
{
    if (!flag && ![[PSAlarms allAlarms] alarmsExpiring]) [alarmSetController showWindow: self];
    return YES;
}

- (NSMenu *)applicationDockMenu:(NSApplication *)sender;
{
    NSMenu *dockMenu = [[NSMenu alloc] initWithTitle: @""];
    PSAlarms *alarms = [PSAlarms allAlarms];
    PSAlarm *nextAlarm = [alarms nextAlarm];
    NSMenuItem *item;
    if (nextAlarm == nil) {
        [dockMenu addItemWithTitle: @"No Pending Alarms" action: nil keyEquivalent: @""];
    } else {
        [dockMenu addItemWithTitle: @"Next Alarm" action: nil keyEquivalent: @""];
        [dockMenu addItemWithTitle: [NSString stringWithFormat: @"   %@", [nextAlarm message]] action: nil keyEquivalent: @""];
        [dockMenu addItemWithTitle: [NSString stringWithFormat: @"   %@ %@", [nextAlarm shortDateString], [nextAlarm timeString]] action: nil keyEquivalent: @""];
        [dockMenu addItemWithTitle: [NSString stringWithFormat: @"   Remaining: %@", [nextAlarm timeRemainingString]] action: nil keyEquivalent: @""];
    }
    [dockMenu addItem: [NSMenuItem separatorItem]];
    item = [dockMenu addItemWithTitle: @"Set AlarmÉ" action: @selector(orderFrontSetAlarmPanel:) keyEquivalent: @""];
    [item setTarget: self];
    item = [dockMenu addItemWithTitle: [NSString stringWithFormat: @"All Alarms (%d)É", [alarms alarmCount]] action: @selector(orderFrontAlarmsPanel:) keyEquivalent: @""];
    [item setTarget: self];
    return [dockMenu autorelease];
}

@end

@implementation PSApplication (NSApplicationNotifications)

- (void)applicationDidFinishLaunching:(NSNotification *)notification;
{
    // XXX import panel will not be frontmost window if you switch to another app while Pester is launching; Mac OS X bug?
    PSAlarms *allAlarms = [PSAlarms allAlarms];
    unsigned version1AlarmCount = [allAlarms countOfVersion1Alarms];
    if (version1AlarmCount > 0) {
        int answer = NSRunAlertPanel(@"Import alarms from older Pester version?", @"Pester found %u alarm%@ created with an older version. These alarms must be converted for use with this version of Pester, and will be unavailable in previous versions after conversion. New alarms created with this version of Pester will not appear in Pester version 1.1a3 or earlier.",
                                     @"Import", @"Discard", @"DonÕt Import",
                                     version1AlarmCount, version1AlarmCount == 1 ? @"" : @"s");
        switch (answer) {
            case NSAlertDefaultReturn:
                NS_DURING
                    [allAlarms importVersion1Alarms];
                NS_HANDLER
                    NSRunAlertPanel(@"Error occurred importing alarms", @"Pester was unable to convert some alarms created with an older version. Those alarms which could be read have been converted. The previous-format alarms have been retained; try using an older version of Pester to read them.\n\n%@", nil, nil, nil, [localException reason]);
                    NS_VOIDRETURN;
                NS_ENDHANDLER
            case NSAlertAlternateReturn:
                [allAlarms discardVersion1Alarms];
                break;
            case NSAlertOtherReturn:
                break;
        }
    }
}

- (void)applicationWillTerminate:(NSNotification *)notification;
{
    [NSApp setApplicationIconImage: appIconImage];
}

@end