//
//  Demo.swift
//  Adwaita
//
//  Created by david-swift on 25.09.23.
//

// swiftlint:disable missing_docs implicitly_unwrapped_optional no_magic_numbers

import Adwaita

@main
struct Demo: App {

    let id = "io.github.AparokshaUI.Demo"
    var app: GTUIApp!

    var scene: Scene {
        Window(id: "main") { window in
            DemoContent(window: window, app: app)
        }
        .defaultSize(width: 650, height: 450)
        .overlay {
            AboutWindow(id: "about", appName: "Demo", developer: "david-swift", version: "Test")
                .icon(.default(icon: .applicationXExecutable))
                .website(.init(string: "https://david-swift.gitbook.io/adwaita"))
                .issues(.init(string: "https://github.com/AparokshaUI/adwaita-swift/issues"))
            Window(id: "overlay", open: 0) { window in
                OverlayWindowDemo.WindowContent(window: window)
            }
            .keyboardShortcut("Escape") { $0.close() }
            .defaultSize(width: 300, height: 200)
        }
        HelperWindows()
    }

    struct HelperWindows: WindowSceneGroup {

        var scene: Scene {
            Window(id: "content", open: 0) { _ in
                WindowsDemo.WindowContent()
            }
            .resizable(false)
            .closeShortcut()
            .defaultSize(width: 400, height: 250)
            Window(id: "toolbar-demo", open: 0) { _ in
                ToolbarDemo.WindowContent().stopModifiers()
            }
            .closeShortcut()
            .defaultSize(width: 400, height: 250)
            .title("Toolbar Demo")
            Window(id: "switcher-demo", open: 0) { _ in
                ViewSwitcherDemo.WindowContent()
            }
            .closeShortcut()
            .defaultSize(width: 600, height: 400)
            .resizable(false)
            .title("View Switcher Demo")
            Window(id: "form-demo", open: 0) { _ in
                FormDemo.WindowContent()
            }
            .closeShortcut()
            .defaultSize(width: 400, height: 250)
            .title("Form Demo")
            Window(id: "navigation", open: 0) { _ in
                NavigationViewDemo.WindowContent()
            }
            .closeShortcut()
            .title("Navigation View Demo")
        }

    }

    struct DemoContent: View {

        @State("selection")
        private var selection: Page = .welcome
        @State private var toast: Signal = .init()
        @State("sidebar-visible")
        private var sidebarVisible = true
        var window: GTUIApplicationWindow
        var app: GTUIApp!

        var view: Body {
            OverlaySplitView(visible: $sidebarVisible) {
                ScrollView {
                    List(Page.allCases, selection: $selection) { element in
                        Text(element.label)
                            .halign(.start)
                            .padding()
                    }
                    .sidebarStyle()
                }
                .topToolbar {
                    HeaderBar.end {
                        menu
                    }
                    .headerBarTitle {
                        WindowTitle(subtitle: "", title: "Demo")
                    }
                }
            } content: {
                StatusPage(
                    selection.label,
                    icon: selection.icon,
                    description: selection.description
                ) { selection.view(app: app, window: window, toast: toast) }
                .topToolbar {
                    HeaderBar {
                        Toggle(icon: .default(icon: .sidebarShow), isOn: $sidebarVisible)
                    } end: {
                        if sidebarVisible {
                            Text("")
                                .transition(.crossfade)
                        } else {
                            menu
                                .transition(.crossfade)
                        }
                    }
                    .headerBarTitle {
                        if sidebarVisible {
                            Text("")
                                .transition(.crossfade)
                        } else {
                            WindowTitle(subtitle: "Demo", title: selection.label)
                                .transition(.crossfade)
                        }
                    }
                }
                .toast("This is a toast!", signal: toast)
            }
        }

        var menu: View {
            Menu(icon: .default(icon: .openMenu), app: app, window: window) {
                MenuButton("New Window", window: false) {
                    app.addWindow("main")
                }
                .keyboardShortcut("n".ctrl())
                MenuButton("Close Window") {
                    window.close()
                }
                .keyboardShortcut("w".ctrl())
                MenuSection {
                    MenuButton("About") { app.addWindow("about", parent: window) }
                    MenuButton("Quit", window: false) { app.quit() }
                        .keyboardShortcut("q".ctrl())
                }
            }
            .primary()
        }

    }

}

// swiftlint:enable missing_docs implicitly_unwrapped_optional no_magic_numbers