// This file Copyright © 2006-2023 Transmission authors and contributors.
// It may be used under the MIT (SPDX: MIT) license.
// License text can be found in the licenses/ folder.

#import "SmallTorrentCell.h"
#import "ProgressBarView.h"
#import "ProgressGradients.h"
#import "TorrentTableView.h"
#import "Torrent.h"
#import "NSImageAdditions.h"

static CGFloat const kPriorityIconWidth = 12.0;

@interface SmallTorrentCell ()
@property(nonatomic) NSTrackingArea* fTrackingArea;
@end

@implementation SmallTorrentCell

//draw progress bar
- (void)drawRect:(NSRect)dirtyRect
{
    if (self.fTorrentTableView)
    {
        NSRect barRect = self.fTorrentProgressBarView.frame;
        ProgressBarView* progressBar = [[ProgressBarView alloc] init];
        Torrent* torrent = (Torrent*)self.objectValue;

        [progressBar drawBarInRect:barRect forTableView:self.fTorrentTableView withTorrent:torrent];

        // set priority icon
        if (torrent.priority != TR_PRI_NORMAL)
        {
            NSColor* priorityColor = self.backgroundStyle == NSBackgroundStyleEmphasized ? NSColor.whiteColor : NSColor.labelColor;
            NSImage* priorityImage = [[NSImage imageNamed:(torrent.priority == TR_PRI_HIGH ? @"PriorityHighTemplate" : @"PriorityLowTemplate")]
                imageWithColor:priorityColor];

            self.fTorrentPriorityView.image = priorityImage;
            self.fStackView.spacing = 4;
            self.fTorrentPriorityViewWidthConstraint.constant = kPriorityIconWidth;
        }
        else
        {
            self.fTorrentPriorityView.image = nil;
            self.fStackView.spacing = 0;
            self.fTorrentPriorityViewWidthConstraint.constant = 0;
        }
    }

    [super drawRect:dirtyRect];
}

//otherwise progress bar is inverted
- (BOOL)isFlipped
{
    return YES;
}

//show fControlButton and fRevealButton
- (void)mouseEntered:(NSEvent*)event
{
    [super mouseEntered:event];

    NSPoint mouseLocation = [self convertPoint:[event locationInWindow] fromView:nil];
    if (NSPointInRect(mouseLocation, self.fTrackingArea.rect))
    {
        [self.fTorrentTableView hoverEventBeganForView:self];
    }
}

- (void)mouseExited:(NSEvent*)event
{
    [super mouseExited:event];

    NSPoint mouseLocation = [self convertPoint:[event locationInWindow] fromView:nil];
    if (!NSPointInRect(mouseLocation, self.fTrackingArea.rect))
    {
        [self.fTorrentTableView hoverEventEndedForView:self];
    }
}

- (void)mouseUp:(NSEvent*)event
{
    [super mouseUp:event];
    [self updateTrackingAreas];
}

- (void)updateTrackingAreas
{
    if (self.fTrackingArea != nil)
    {
        [self removeTrackingArea:self.fTrackingArea];
    }

    //tracking rect should not be entire row, but start at fGroupDownloadView
    NSRect titleRect = self.fTorrentTitleField.frame;
    CGFloat maxX = NSMaxX(titleRect);
    NSRect rect = self.bounds;
    rect.origin.x = maxX;

    NSTrackingAreaOptions opts = (NSTrackingMouseEnteredAndExited | NSTrackingActiveInKeyWindow);
    self.fTrackingArea = [[NSTrackingArea alloc] initWithRect:rect options:opts owner:self userInfo:nil];
    [self addTrackingArea:self.fTrackingArea];

    //check to see if mouse is already within rect
    NSPoint mouseLocation = [self.window mouseLocationOutsideOfEventStream];
    mouseLocation = [self.superview convertPoint:mouseLocation fromView:nil];

    if (NSPointInRect(mouseLocation, rect))
    {
        [self mouseEntered:[[NSEvent alloc] init]];
    }
    else
    {
        [self mouseExited:[[NSEvent alloc] init]];
    }
}

@end