import SwiftUI

@MainActor
struct DocsToolsControls: View {
    let projection: CRDTProjection
    let content: NSAttributedString
    let selection: NSRange
    @State private var showingCount = false
    @State private var showingShortcuts = false

    var body: some View {
        Menu {
            Button { showingCount = true } label: {
                Label { Text("docs.editor.wordcount.title", bundle: DocsResources.bundle) } icon: { Image(systemName: "number") }
            }
            Button { showingShortcuts = true } label: {
                Label { Text("docs.editor.shortcuts.title", bundle: DocsResources.bundle) } icon: { Image(systemName: "keyboard") }
            }
        } label: {
            Label { Text("docs.editor.menu.tools", bundle: DocsResources.bundle) } icon: { Image(systemName: "wrench.and.screwdriver") }
        }
        .sheet(isPresented: $showingShortcuts) {
            NavigationStack {
                Form {
                    ForEach(DocumentKeyboardBindings.all) { binding in
                        LabeledContent {
                            Text(binding.display).monospaced()
                        } label: {
                            Text(LocalizedStringKey(binding.titleKey), bundle: DocsResources.bundle)
                        }
                    }
                }
                .navigationTitle(Text("docs.editor.shortcuts.title", bundle: DocsResources.bundle))
                .toolbar {
                    ToolbarItem(placement: .confirmationAction) {
                        Button { showingShortcuts = false } label: { Text("docs.editor.shortcuts.close", bundle: DocsResources.bundle) }
                    }
                }
            }
            #if os(macOS)
            .frame(minWidth: 420, minHeight: 420)
            #endif
        }
        .sheet(isPresented: $showingCount) {
            let count = DocumentWordCounts(projection: projection, content: content, selection: selection)
            NavigationStack {
                Form {
                    row("docs.editor.wordcount.words", count.words)
                    row("docs.editor.wordcount.characters", count.characters)
                    row("docs.editor.wordcount.charactersnospaces", count.charactersNoSpaces)
                    row("docs.editor.wordcount.paragraphs", count.paragraphs)
                    if let selected = count.selectedWords { row("docs.editor.wordcount.selection", selected) }
                }
                .navigationTitle(Text("docs.editor.wordcount.title", bundle: DocsResources.bundle))
                .toolbar {
                    ToolbarItem(placement: .confirmationAction) {
                        Button { showingCount = false } label: { Text("docs.editor.wordcount.close", bundle: DocsResources.bundle) }
                    }
                }
            }
            #if os(macOS)
            .frame(minWidth: 360, minHeight: 290)
            #else
            .presentationDetents([.medium])
            #endif
        }
    }

    private func row(_ key: LocalizedStringKey, _ value: Int) -> some View {
        LabeledContent { Text(value, format: .number).monospacedDigit() } label: { Text(key, bundle: DocsResources.bundle) }
    }
}