import AppKit

// MainWindowController builds the regular window you can move/resize.
// It embeds an AppStatusView (3 simple rows, no scrolling) and a tiny
// control bar in the bottom‑left with:
//  - ⟳ Refresh (forces a status check)
//  - _  Minimize to Status Bar (switches to overlay mode)
final class MainWindowController: NSWindowController {
    struct Actions {
        let onRefresh: () -> Void
        let onMinimizeToStatusBar: () -> Void
    }

    private let statusView = AppStatusView()
    private let actions: Actions

    init(serviceChecker: ServiceChecker, actions: Actions) {
        // Initialize stored properties before calling super.init
        self.actions = actions
        let style: NSWindow.StyleMask = [.titled, .closable, .miniaturizable, .resizable]
        let initialRect = NSRect(x: 0, y: 0, width: 720, height: 420)
        let window = NSWindow(contentRect: initialRect, styleMask: style, backing: .buffered, defer: false)
        super.init(window: window)

        window.isReleasedWhenClosed = false
        window.title = "ProleStatus"
        window.center()
        window.level = .normal
        window.collectionBehavior = [.canJoinAllSpaces]
        window.appearance = NSAppearance(named: .aqua)

        // A plain NSView acts as the content container
        let content = NSView()
        content.translatesAutoresizingMaskIntoConstraints = false
        window.contentView = content

        statusView.translatesAutoresizingMaskIntoConstraints = false
        content.addSubview(statusView)

        // Bottom-left control bar with Refresh and Minimize buttons
        let controls = NSStackView()
        controls.orientation = .horizontal
        controls.spacing = 8
        controls.alignment = .centerY
        controls.translatesAutoresizingMaskIntoConstraints = false
        content.addSubview(controls)

        let refreshButton = NSButton(title: "⟳", target: nil, action: nil)
        refreshButton.bezelStyle = .texturedRounded
        refreshButton.toolTip = "Refresh Now"
        refreshButton.target = self
        refreshButton.action = #selector(didTapRefresh)

        let minimizeButton = NSButton(title: "_", target: nil, action: nil)
        minimizeButton.bezelStyle = .texturedRounded
        minimizeButton.toolTip = "Minimize to Status Bar"
        minimizeButton.target = self
        minimizeButton.action = #selector(didTapMinimize)

        controls.addArrangedSubview(refreshButton)
        controls.addArrangedSubview(minimizeButton)
        NSLayoutConstraint.activate([
            content.widthAnchor.constraint(equalToConstant: initialRect.width),
            content.heightAnchor.constraint(equalToConstant: initialRect.height),
            // AppStatusView pinned to top/leading/trailing so timestamp can sit top-right
            statusView.leadingAnchor.constraint(equalTo: content.leadingAnchor),
            statusView.trailingAnchor.constraint(equalTo: content.trailingAnchor),
            statusView.topAnchor.constraint(equalTo: content.topAnchor),
            controls.leadingAnchor.constraint(equalTo: content.leadingAnchor, constant: 8),
            controls.bottomAnchor.constraint(equalTo: content.bottomAnchor, constant: -8)
        ])

        statusView.bindTo(serviceChecker: serviceChecker)
    }

    required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }

    func show() {
        guard let window = window else { return }
        window.makeKeyAndOrderFront(nil)
        NSApp.activate(ignoringOtherApps: false)
    }

    func hide() {
        window?.orderOut(nil)
    }

    var isVisible: Bool { window?.isVisible ?? false }

    // MARK: - Actions
    @objc private func didTapRefresh() { actions.onRefresh() }
    @objc private func didTapMinimize() { actions.onMinimizeToStatusBar() }
}