import SwiftUI
import AppKit

/// Settings panel (pushed from the menu-bar panel).
struct SettingsView: View {
    @EnvironmentObject private var settings: AppSettings

    var body: some View {
        Form {
            Section("SparkControl backend") {
                TextField("Base URL", text: $settings.backendBaseURL)
                    .textFieldStyle(.roundedBorder)
                Toggle("Skip TLS verification (self-signed cert)",
                       isOn: $settings.skipTLSVerification)
            }

            Section("Call detection") {
                Toggle("Auto-record when a call is detected", isOn: $settings.autoRecordOnDetection)
                Text("Detects Zoom, Teams, Signal, and Google Meet (any browser).")
                    .font(.caption)
                    .foregroundStyle(.secondary)
            }

            Section("Transcription") {
                TextField("Your name", text: $settings.selfName)
                    .textFieldStyle(.roundedBorder)
                Toggle("Auto-send recordings to backend", isOn: $settings.autoSendOnStop)
                Toggle("Build readable recap (topics + highlights)", isOn: $settings.recapEnabled)
                HStack {
                    Picker("Default recap template", selection: $settings.defaultTemplateId) {
                        ForEach(settings.recapTemplates) { Text($0.name).tag($0.id) }
                    }
                    Button("Manage…") { TemplatesWindow.shared.show(settings: settings) }
                }
                Text("Your name labels your mic channel. Auto-send transcribes on stop; the recap writes transcript.md + recap.html. Templates define the takeaways categories per meeting type.")
                    .font(.caption)
                    .foregroundStyle(.secondary)
            }

            Section("Output") {
                HStack {
                    Text(settings.outputFolderPath)
                        .lineLimit(1)
                        .truncationMode(.middle)
                        .foregroundStyle(.secondary)
                    Spacer()
                    Button("Choose…", action: chooseFolder)
                }
            }

            Section("Adapters") {
                Text("Inert in Phase 0 — these toggles only persist for now.")
                    .font(.caption)
                    .foregroundStyle(.secondary)
                ForEach(AppSettings.adapterKeys, id: \.key) { adapter in
                    Toggle(adapter.label, isOn: binding(for: adapter.key))
                }
            }
        }
        .formStyle(.grouped)
        .frame(width: 320)
        .navigationTitle("Settings")
    }

    private func binding(for key: String) -> Binding<Bool> {
        Binding(
            get: { settings.adapterEnabled[key] ?? true },
            set: { settings.adapterEnabled[key] = $0 }
        )
    }

    private func chooseFolder() {
        let panel = NSOpenPanel()
        panel.canChooseDirectories = true
        panel.canChooseFiles = false
        panel.allowsMultipleSelection = false
        panel.prompt = "Choose"
        panel.directoryURL = settings.outputFolderURL

        // The app is a menu-bar accessory and this is invoked from the transient
        // MenuBarExtra(.window) popover. Use the async begin(...) API rather than
        // runModal() — a nested modal loop can let the popover dismiss the panel
        // out from under it. Activate first so the panel comes to the front.
        NSApp.activate(ignoringOtherApps: true)
        panel.begin { response in
            guard response == .OK, let url = panel.url else { return }
            settings.outputFolderPath = url.path
        }
    }
}