/**
 * @file llappdelegate-objc.mm
 * @brief Class implementation for the Mac version's application delegate.
 *
 * $LicenseInfo:firstyear=2000&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#import "llappdelegate-objc.h"
#if defined(LL_BUGSPLAT)
#include <boost/filesystem.hpp>
#include <vector>
@import BugsplatMac;
// derived from BugsplatMac's BugsplatTester/AppDelegate.m
@interface LLAppDelegate () <BugsplatStartupManagerDelegate>
@end
#endif
#include "llwindowmacosx-objc.h"
#include "llappviewermacosx-for-objc.h"
#include <Carbon/Carbon.h> // Used for Text Input Services ("Safe" API - it's supported)

@implementation LLAppDelegate

@synthesize window;
@synthesize inputWindow;
@synthesize inputView;
@synthesize currentInputLanguage;

- (void)dealloc
{
    [super dealloc];
}

- (void) applicationWillFinishLaunching:(NSNotification *)notification
{
    [[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(handleGetURLEvent:withReplyEvent:) forEventClass:kInternetEventClass andEventID:kAEGetURL];
}

- (void) applicationDidFinishLaunching:(NSNotification *)notification
{
	// Call constructViewer() first so our logging subsystem is in place. This
	// risks missing crashes in the LLAppViewerMacOSX constructor, but for
	// present purposes it's more important to get the startup sequence
	// properly logged.
	// Someday I would like to modify the logging system so that calls before
	// it's initialized are cached in a std::ostringstream and then, once it's
	// initialized, "played back" into whatever handlers have been set up.
	constructViewer();

#if defined(LL_BUGSPLAT)
	// Engage BugsplatStartupManager *before* calling initViewer() to handle
	// any crashes during initialization.
	// https://www.bugsplat.com/docs/platforms/os-x#initialization
	[BugsplatStartupManager sharedManager].autoSubmitCrashReport = YES;
	[BugsplatStartupManager sharedManager].askUserDetails = NO;
	[BugsplatStartupManager sharedManager].delegate = self;
	[[BugsplatStartupManager sharedManager] start];
#endif

	frameTimer = nil;

	[self languageUpdated];

	if (initViewer())
	{
		// Set up recurring calls to oneFrame (repeating timer with timeout 0)
		// until applicationShouldTerminate.
		frameTimer = [NSTimer scheduledTimerWithTimeInterval:0.0 target:self
							  selector:@selector(oneFrame) userInfo:nil repeats:YES];
	} else {
		exit(0);
	}

	[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(languageUpdated) name:@"NSTextInputContextKeyboardSelectionDidChangeNotification" object:nil];

 //   [[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(handleGetURLEvent:withReplyEvent:) forEventClass:kInternetEventClass andEventID:kAEGetURL];
}

- (void) handleGetURLEvent:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent {
    NSString    *url= nil;
    url = [[[[NSAppleEventManager sharedAppleEventManager]// 1
                      currentAppleEvent]// 2
                     paramDescriptorForKeyword:keyDirectObject]// 3
                    stringValue];// 4

    const char* url_utf8 = [url UTF8String];
   handleUrl(url_utf8);
}

- (void) applicationDidBecomeActive:(NSNotification *)notification
{
	callWindowFocus();
}

- (void) applicationDidResignActive:(NSNotification *)notification
{
	callWindowUnfocus();
}

- (void) applicationDidHide:(NSNotification *)notification
{
	callWindowHide();
}

- (void) applicationDidUnhide:(NSNotification *)notification
{
	callWindowUnhide();
}

- (NSApplicationTerminateReply) applicationShouldTerminate:(NSApplication *)sender
{
	// run one frame to assess state
	if (!pumpMainLoop())
	{
		// pumpMainLoop() returns true when done, false if it wants to be
		// called again. Since it returned false, do not yet cancel
		// frameTimer.
		handleQuit();
		return NSTerminateCancel;
	} else {
		// pumpMainLoop() returned true: it's done. Okay, done with frameTimer.
		[frameTimer release];
		cleanupViewer();
		return NSTerminateNow;
	}
}

- (void) oneFrame
{
	bool appExiting = pumpMainLoop();
	if (appExiting)
	{
		// Once pumpMainLoop() reports that we're done, cancel frameTimer:
		// stop the repetitive calls.
		[frameTimer release];
		[[NSApplication sharedApplication] terminate:self];
	}
}

- (void) showInputWindow:(bool)show withEvent:(NSEvent*)textEvent
{
	if (![self romanScript])
	{
		if (show)
		{
			NSLog(@"Showing input window.");
			[inputWindow makeKeyAndOrderFront:inputWindow];
            if (textEvent != nil)
            {
                [[inputView inputContext] discardMarkedText];
                [[inputView inputContext] handleEvent:textEvent];
            }
		} else {
			NSLog(@"Hiding input window.");
			[inputWindow orderOut:inputWindow];
			[window makeKeyAndOrderFront:window];
		}
	}
}

// This will get called multiple times by NSNotificationCenter.
// It will be called every time that the window focus changes, and every time that the input language gets changed.
// The primary use case for this selector is to update our current input language when the user, for whatever reason, changes the input language.
// This is the more elegant way of handling input language changes instead of checking every time we want to use the input window.

- (void) languageUpdated
{
	TISInputSourceRef currentInput = TISCopyCurrentKeyboardInputSource();
	CFArrayRef languages = (CFArrayRef)TISGetInputSourceProperty(currentInput, kTISPropertyInputSourceLanguages);
	
#if 0 // In the event of ever needing to add new language sources, change this to 1 and watch the terminal for "languages:"
	NSLog(@"languages: %@", TISGetInputSourceProperty(currentInput, kTISPropertyInputSourceLanguages));
#endif
	
	// Typically the language we want is going to be the very first result in the array.
	currentInputLanguage = (NSString*)CFArrayGetValueAtIndex(languages, 0);
}

- (bool) romanScript
{
	// How to add support for new languages with the input window:
	// Simply append this array with the language code (ja for japanese, ko for korean, zh for chinese, etc.)
	NSArray *nonRomanScript = [[NSArray alloc] initWithObjects:@"ja", @"ko", @"zh-Hant", @"zh-Hans", nil];
	if ([nonRomanScript containsObject:currentInputLanguage])
    {
        return false;
    }
    
    return true;
}

#if defined(LL_BUGSPLAT)

- (NSString *)applicationLogForBugsplatStartupManager:(BugsplatStartupManager *)bugsplatStartupManager
{
    CrashMetadata& meta(CrashMetadata_instance());
    // As of BugsplatMac 1.0.6, userName and userEmail properties are now
    // exposed by the BugsplatStartupManager. Set them here, since the
    // defaultUserNameForBugsplatStartupManager and
    // defaultUserEmailForBugsplatStartupManager methods are called later, for
    // the *current* run, rather than for the previous crashed run whose crash
    // report we are about to send.
    infos("applicationLogForBugsplatStartupManager setting userName = '" +
          meta.agentFullname + '"');
    bugsplatStartupManager.userName =
        [NSString stringWithCString:meta.agentFullname.c_str()
                           encoding:NSUTF8StringEncoding];
    // Use the email field for OS version, just as we do on Windows, until
    // BugSplat provides more metadata fields.
    infos("applicationLogForBugsplatStartupManager setting userEmail = '" +
          meta.OSInfo + '"');
    bugsplatStartupManager.userEmail =
        [NSString stringWithCString:meta.OSInfo.c_str()
                           encoding:NSUTF8StringEncoding];
    // This strangely-named override method's return value contributes the
    // User Description metadata field.
    infos("applicationLogForBugsplatStartupManager -> '" + meta.fatalMessage + "'");
    return [NSString stringWithCString:meta.fatalMessage.c_str()
                              encoding:NSUTF8StringEncoding];
}

- (NSString *)applicationKeyForBugsplatStartupManager:(BugsplatStartupManager *)bugsplatStartupManager signal:(NSString *)signal exceptionName:(NSString *)exceptionName exceptionReason:(NSString *)exceptionReason {
    // TODO: exceptionName, exceptionReason

    // Windows sends location within region as well, but that's because
    // BugSplat for Windows intercepts crashes during the same run, and that
    // information can be queried once. On the Mac, any metadata we have is
    // written (and rewritten) to the static_debug_info.log file that we read
    // at the start of the next viewer run. It seems ridiculously expensive to
    // rewrite that file on every frame in which the avatar moves.
    std::string regionName(CrashMetadata_instance().regionName);
    infos("applicationKeyForBugsplatStartupManager -> '" + regionName + "'");
    return [NSString stringWithCString:regionName.c_str()
                              encoding:NSUTF8StringEncoding];
}

- (NSString *)defaultUserNameForBugsplatStartupManager:(BugsplatStartupManager *)bugsplatStartupManager {
    std::string agentFullname(CrashMetadata_instance().agentFullname);
    infos("defaultUserNameForBugsplatStartupManager -> '" + agentFullname + "'");
    return [NSString stringWithCString:agentFullname.c_str()
                              encoding:NSUTF8StringEncoding];
}

- (NSString *)defaultUserEmailForBugsplatStartupManager:(BugsplatStartupManager *)bugsplatStartupManager {
    // Use the email field for OS version, just as we do on Windows, until
    // BugSplat provides more metadata fields.
    std::string OSInfo(CrashMetadata_instance().OSInfo);
    infos("defaultUserEmailForBugsplatStartupManager -> '" + OSInfo + "'");
    return [NSString stringWithCString:OSInfo.c_str()
                              encoding:NSUTF8StringEncoding];
}

- (void)bugsplatStartupManagerWillSendCrashReport:(BugsplatStartupManager *)bugsplatStartupManager
{
    infos("bugsplatStartupManagerWillSendCrashReport");
}

struct AttachmentInfo
{
    AttachmentInfo(const std::string& path, const std::string& type):
        pathname(path),
        basename(boost::filesystem::path(path).filename().string()),
        mimetype(type)
    {}

    std::string pathname, basename, mimetype;
};

- (NSArray<BugsplatAttachment *> *)attachmentsForBugsplatStartupManager:(BugsplatStartupManager *)bugsplatStartupManager
{
    const CrashMetadata& metadata(CrashMetadata_instance());

    // Since we must do very similar processing for each of several file
    // pathnames, start by collecting them into a vector so we can iterate
    // instead of spelling out the logic for each.
    std::vector<AttachmentInfo> info{
        AttachmentInfo(metadata.logFilePathname,      "text/plain"),
        AttachmentInfo(metadata.userSettingsPathname, "text/xml"),
        AttachmentInfo(metadata.accountSettingsPathname, "text/xml"),
        AttachmentInfo(metadata.staticDebugPathname,  "text/xml")
    };

    // We "happen to know" that info[0].basename is "SecondLife.old" -- due to
    // the fact that BugsplatMac only notices a crash during the viewer run
    // following the crash. Replace .old with .log to reduce confusion.
    info[0].basename = 
        boost::filesystem::path(info[0].pathname).stem().string() + ".log";

    NSMutableArray *attachments = [[NSMutableArray alloc] init];

    // Iterate over each AttachmentInfo in info vector
    for (const AttachmentInfo& attach : info)
    {
        NSString *nspathname = [NSString stringWithCString:attach.pathname.c_str()
                                                  encoding:NSUTF8StringEncoding];
        NSString *nsbasename = [NSString stringWithCString:attach.basename.c_str()
                                                  encoding:NSUTF8StringEncoding];
        NSString *nsmimetype = [NSString stringWithCString:attach.mimetype.c_str()
                                                  encoding:NSUTF8StringEncoding];
        NSData *nsdata = [NSData dataWithContentsOfFile:nspathname];

        BugsplatAttachment *attachment =
            [[BugsplatAttachment alloc] initWithFilename:nsbasename
                                          attachmentData:nsdata
                                             contentType:nsmimetype];

        [attachments addObject:attachment];
        infos("attachmentsForBugsplatStartupManager attaching " + attach.pathname);
    }

    return attachments;
}

- (void)bugsplatStartupManagerDidFinishSendingCrashReport:(BugsplatStartupManager *)bugsplatStartupManager
{
    infos("Sent crash report to BugSplat");
}

- (void)bugsplatStartupManager:(BugsplatStartupManager *)bugsplatStartupManager didFailWithError:(NSError *)error
{
    // TODO: message string from NSError
    infos("Could not send crash report to BugSplat");
}

#endif // LL_BUGSPLAT

@end

@implementation LLApplication

- (void)sendEvent:(NSEvent *)event
{
    [super sendEvent:event];
    if ([event type] == NSKeyUp && ([event modifierFlags] & NSCommandKeyMask))
    {   
        [[self keyWindow] sendEvent:event];
    }
}

@end
