//
//  ThumbnailProvider.swift
//  CaseraQLThumbnail
//
//  Created by Trey Tartt on 12/6/25.
//

import UIKit
import QuickLookThumbnailing

class ThumbnailProvider: QLThumbnailProvider {

    override func provideThumbnail(for request: QLFileThumbnailRequest, _ handler: @escaping (QLThumbnailReply?, Error?) -> Void) {

        let thumbnailSize = request.maximumSize

        handler(QLThumbnailReply(contextSize: thumbnailSize, currentContextDrawing: { () -> Bool in
            // Draw background
            let backgroundColor = UIColor(red: 7/255, green: 160/255, blue: 195/255, alpha: 1)
            backgroundColor.setFill()
            UIRectFill(CGRect(origin: .zero, size: thumbnailSize))

            // Draw icon
            let config = UIImage.SymbolConfiguration(pointSize: min(thumbnailSize.width, thumbnailSize.height) * 0.5, weight: .regular)
            if let icon = UIImage(systemName: "person.crop.rectangle.stack", withConfiguration: config) {
                let tintedIcon = icon.withTintColor(.white, renderingMode: .alwaysOriginal)
                let iconSize = tintedIcon.size
                let iconOrigin = CGPoint(
                    x: (thumbnailSize.width - iconSize.width) / 2,
                    y: (thumbnailSize.height - iconSize.height) / 2
                )
                tintedIcon.draw(at: iconOrigin)
            }

            return true
        }), nil)
    }
}