import AppKit
import Testing
@testable import Conjure

@Test @MainActor func numberedMarkersShareTheBodyTextBaseline() throws {
    _ = NSApplication.shared
    let editor = NotesTextView(frame: NSRect(x: 0, y: 0, width: 400, height: 200))
    for source in ["1. 1", "123) 123", "  12. 12"] {
        editor.setMarkdownContents(NSAttributedString(string: source))
        MarkdownHighlighting.apply(to: editor)
        editor.refreshTasks()
        let layout = try #require(editor.layoutManager)
        let container = try #require(editor.textContainer)
        layout.ensureLayout(for: container)
        let text = editor.string as NSString
        let marker = text.range(of: "\u{fffc}")
        let body = NSRange(location: NSMaxRange(marker) + 1, length: text.length - NSMaxRange(marker) - 1)
        var bottoms: [Int] = []
        for range in [marker, body] {
            let bitmap = try #require(NSBitmapImageRep(bitmapDataPlanes: nil, pixelsWide: 400, pixelsHigh: 80,
                bitsPerSample: 8, samplesPerPixel: 4, hasAlpha: true, isPlanar: false,
                colorSpaceName: .deviceRGB, bytesPerRow: 0, bitsPerPixel: 0))
            let bitmapContext = try #require(NSGraphicsContext(bitmapImageRep: bitmap))
            bitmapContext.cgContext.translateBy(x: 0, y: 80)
            bitmapContext.cgContext.scaleBy(x: 1, y: -1)
            let context = NSGraphicsContext(cgContext: bitmapContext.cgContext, flipped: true)
            NSGraphicsContext.saveGraphicsState()
            NSGraphicsContext.current = context
            context.cgContext.clear(CGRect(x: 0, y: 0, width: 400, height: 80))
            layout.drawGlyphs(forGlyphRange: layout.glyphRange(forCharacterRange: range, actualCharacterRange: nil), at: .zero)
            NSGraphicsContext.restoreGraphicsState()
            var bottom = -1
            for y in 0..<80 {
                for x in 0..<400 where (bitmap.colorAt(x: x, y: y)?.alphaComponent ?? 0) > 0.2 { bottom = y }
            }
            try #require(bottom >= 0)
            bottoms.append(bottom)
        }
        #expect(abs(bottoms[0] - bottoms[1]) <= 1, "Marker/body ink baseline for \(source)")
    }
}