import IndieAbout
import IndieBackup
import SwiftUI

struct SettingsView: View {
    @Environment(SyncEngine.self) private var syncEngine
    @Environment(ContextService.self) private var contextService
    @EnvironmentObject private var backupController: BackupController

    @AppStorage(ProjectsNaming.storageKey) private var namingRaw = ProjectsNaming.projects.rawValue

    var body: some View {
        NavigationStack {
            Form {
                Section("iCloud") {
                    HStack {
                        Text("Status")
                        Spacer()
                        switch syncEngine.iCloudStatus {
                        case .checking:
                            Text("Checking…").foregroundStyle(.secondary)
                        case .available:
                            Label("Connected", systemImage: "checkmark.icloud")
                                .foregroundStyle(.green)
                        case .unavailable:
                            Label("Unavailable", systemImage: "xmark.icloud")
                                .foregroundStyle(.red)
                        }
                    }
                    if let error = syncEngine.lastSyncError {
                        Text(error)
                            .font(.footnote)
                            .foregroundStyle(.red)
                    }
                    Button("Rebuild Local Cache") {
                        Task { await syncEngine.rebuildCache() }
                    }
                    .disabled(syncEngine.iCloudStatus != .available || syncEngine.isSyncing)
                }

                Section("Transcription") {
                    NavigationLink {
                        TranscriptionLanguagesView()
                    } label: {
                        Label("Languages", systemImage: "character.bubble")
                    }
                }

                Section("Organization") {
                    // Renames the Projects tab plus its list headers and swipe/assign UI.
                    Picker("Group Notes By", selection: $namingRaw) {
                        ForEach(ProjectsNaming.allCases) { naming in
                            Text(naming.plural).tag(naming.rawValue)
                        }
                    }
                }

                Section("Context") {
                    ContextSummaryRow(
                        context: contextService.current,
                        isRefreshing: contextService.isRefreshing
                    )
                    if contextService.authorizationDenied {
                        Text("Location access is off. Notes can still be taken, but they won't resurface by place. Enable location for Notes in Settings.")
                            .font(.footnote)
                            .foregroundStyle(.secondary)
                    }
                    Button("Refresh Context") {
                        Task { await contextService.refresh() }
                    }
                    .disabled(contextService.isRefreshing)
                }

                BackupsSectionView(controller: backupController)

                Section {
                    IndieAbout(configuration: .init(
                        documents: [
                            .license(filename: "LICENSE", extension: "md"),
                            .custom(title: "Changelog", filename: "CHANGELOG", extension: "md")
                        ]
                    ))
                }
            }
            .formStyle(.grouped)
            .navigationTitle("Settings")
        }
    }
}