/*
 * Atoll (DynamicIsland)
 * Copyright (C) 2024-2026 Atoll Contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

import SwiftUI
import AppKit
import Defaults

struct AppIcons {
    
    func getIcon(file path: String) -> NSImage? {
        guard FileManager.default.fileExists(atPath: path)
        else { return nil }
        
        return NSWorkspace.shared.icon(forFile: path)
    }
    
    func getIcon(bundleID: String) -> NSImage? {
        guard let path = NSWorkspace.shared.urlForApplication(
            withBundleIdentifier: bundleID
        )?.absoluteString
        else { return nil }
        
        return getIcon(file: path)
    }
    
        /// Easily read Info.plist as a Dictionary from any bundle by accessing .infoDictionary on Bundle
    func bundle(forBundleID: String) -> Bundle? {
        guard let url = NSWorkspace.shared.urlForApplication(withBundleIdentifier: forBundleID)
        else { return nil }
        
        return Bundle(url: url)
    }
    
}

func AppIcon(for bundleID: String) -> Image {
    let workspace = NSWorkspace.shared
    
    if let appURL = workspace.urlForApplication(withBundleIdentifier: bundleID) {
        let appIcon = workspace.icon(forFile: appURL.path)
        return Image(nsImage: appIcon)
    }
    
    return Image(nsImage: workspace.icon(for: .applicationBundle))
}


func AppIconAsNSImage(for bundleID: String) -> NSImage? {
    let workspace = NSWorkspace.shared
    
    if let appURL = workspace.urlForApplication(withBundleIdentifier: bundleID) {
        let appIcon = workspace.icon(forFile: appURL.path)
        return appIcon
    }
    return nil
}

func applySelectedAppIcon() {
    let customIcons = Defaults[.customAppIcons]
    if let selectedID = Defaults[.selectedAppIconID],
       let icon = customIcons.first(where: { $0.id.uuidString == selectedID }),
       let image = NSImage(contentsOf: icon.fileURL) {
        NSApp.applicationIconImage = image
        return
    }

    let fallbackName = Bundle.main.iconFileName ?? "AppIcon"
    if let image = NSImage(named: fallbackName) {
        NSApp.applicationIconImage = image
    }
}