//
//  WRPageHighlight.m
//  WeRead (微信读书)
//  Reverse-engineered implementation reconstruction
//
//  3 methods identified from binary. WRPageHighlight is a lightweight
//  model for text highlights on a page.
//

#import "WRPageHighlight.h"
#import "WRBookmark.h"

// ---------------------------------------------------------------------------
// Color utility
// ---------------------------------------------------------------------------
static UIColor *UIColorForHighlightColor(WRHighlightColor color)
{
    switch (color) {
        case WRHighlightColorYellow:
            return [UIColor colorWithRed:1.0 green:0.92 blue:0.23 alpha:0.35];
        case WRHighlightColorBlue:
            return [UIColor colorWithRed:0.26 green:0.65 blue:0.96 alpha:0.35];
        case WRHighlightColorRed:
            return [UIColor colorWithRed:0.96 green:0.26 blue:0.26 alpha:0.35];
        case WRHighlightColorGreen:
            return [UIColor colorWithRed:0.30 green:0.85 blue:0.39 alpha:0.35];
        case WRHighlightColorPurple:
            return [UIColor colorWithRed:0.67 green:0.33 blue:0.97 alpha:0.35];
        default:
            return [UIColor colorWithRed:1.0 green:0.92 blue:0.23 alpha:0.35];
    }
}

static NSString *NSStringFromHighlightColor(WRHighlightColor color)
{
    switch (color) {
        case WRHighlightColorYellow: return @"yellow";
        case WRHighlightColorBlue:   return @"blue";
        case WRHighlightColorRed:    return @"red";
        case WRHighlightColorGreen:  return @"green";
        case WRHighlightColorPurple: return @"purple";
        default: return @"yellow";
    }
}

#pragma mark - Implementation

@implementation WRPageHighlight

- (instancetype)initWithBookId:(NSString *)bookId
                    chapterUid:(NSString *)chapterUid
                      startPos:(NSInteger)startPos
                        endPos:(NSInteger)endPos
                          text:(NSString *)text
                         color:(WRHighlightColor)color
{
    self = [super init];
    if (self) {
        _highlightId   = [[NSUUID UUID] UUIDString];
        _bookId        = [bookId copy];
        _chapterUid    = [chapterUid copy];
        _startPos      = startPos;
        _endPos        = endPos;
        _chapterOffset = startPos; // Simplified; real impl maps global->local
        _markedText    = [text copy];
        _color         = color;
        _colorStyle    = NSStringFromHighlightColor(color);
        _createTime    = [[NSDate date] timeIntervalSince1970];
        _isSynced      = NO;
    }
    return self;
}

- (WRBookmark *)toBookmark
{
    WRBookmark *bookmark = [WRBookmark highlightWithBookId:_bookId
                                                chapterUid:_chapterUid
                                                  startPos:_startPos
                                                    endPos:_endPos
                                                      text:_markedText
                                               colorStyle:_colorStyle];
    bookmark.bookmarkId    = _highlightId;
    bookmark.chapterOffset = _chapterOffset;
    bookmark.pageIndex     = _pageIndex;
    bookmark.createTime    = _createTime;
    bookmark.isSynced      = _isSynced;

    return bookmark;
}

- (UIColor *)uiColor
{
    return UIColorForHighlightColor(_color);
}

#pragma mark - NSObject

- (NSString *)description
{
    return [NSString stringWithFormat:@"<WRPageHighlight: %@ [%@] '%@'>",
            _highlightId, _colorStyle,
            [_markedText substringToIndex:MIN(40, _markedText.length)]];
}

@end