//
// StatusItemManager.swift
// IceGlass
//
// Copyright 2026 Rouslan Zenetl. All Rights Reserved.
//

import AppKit

final class StatusItemManager: @unchecked Sendable {
    private let logger = IceGlassLogger(
        subsystem: Bundle.main.bundleIdentifier ?? "dev.rzen.indie.IceGlass",
        category: "StatusItemManager"
    )

    static let shared = StatusItemManager()

    var statusItem: NSStatusItem?

    private init() {
        DispatchQueue.main.async { [weak self] in
            guard let self = self else {
                AppTerminator.terminate()
                return
            }
            self.setupStatusItem()
        }
    }

    private func setupStatusItem() {
        logger.debug("Initializing")
        statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
        updateIcon()
    }

    func updateIcon() {
        Task { @MainActor in
            guard let button = self.statusItem?.button else { return }

            guard let baseImage = NSImage(named: NSImage.Name("NHLShield")) else {
                button.title = "NHL"
                return
            }

            let pointSize = button.frame.size.height > 0 ? button.frame.size.height : 22
            let resizedImage = NSImage(size: NSSize(width: pointSize, height: pointSize))
            resizedImage.lockFocus()
            baseImage.draw(
                in: NSRect(x: 0, y: 0, width: pointSize, height: pointSize),
                from: NSRect(x: 0, y: 0, width: baseImage.size.width, height: baseImage.size.height),
                operation: .copy,
                fraction: 1.0
            )
            resizedImage.unlockFocus()

            button.image = resizedImage
            button.imageScaling = .scaleProportionallyDown
        }
    }

    /// Update status bar text with per-day game counts (e.g. "6/10/9" or "10/9")
    func updateGameCounts(_ gameDays: [Scoreboard.GameDay]) {
        Task { @MainActor in
            guard let button = self.statusItem?.button else { return }
            if gameDays.isEmpty {
                button.title = ""
                return
            }
            let counts = gameDays.map { "\($0.games.count)" }.joined(separator: "/")
            button.title = " \(counts)"
        }
    }
}