//
//  ContentView.swift
//  MyQrCode
//
//  Created by dev on 2025/8/19.
//

import SwiftUI

struct ContentView: View {
    @StateObject private var languageManager = LanguageManager.shared
    @State private var showScanner = false
    @State private var scannedResult: String?
    
    var body: some View {
        NavigationView {
            VStack(spacing: 30) {
                // 应用图标
                Image(systemName: "qrcode.viewfinder")
                    .font(.system(size: 100))
                    .foregroundColor(.blue)
                
                // 标题
                Text("app_title".localized)
                    .font(.largeTitle)
                    .fontWeight(.bold)
                    .multilineTextAlignment(.center)
                
                // 描述
                Text("app_description".localized)
                    .font(.body)
                    .foregroundColor(.secondary)
                    .multilineTextAlignment(.center)
                    .padding(.horizontal)
                
                // 扫描按钮
                Button(action: {
                    showScanner = true
                }) {
                    HStack {
                        Image(systemName: "camera.fill")
                        Text("start_scanning".localized)
                    }
                    .font(.title2)
                    .foregroundColor(.white)
                    .padding()
                    .frame(maxWidth: .infinity)
                    .background(Color.blue)
                    .cornerRadius(15)
                }
                .padding(.horizontal, 40)
                
                // 测试日志按钮
                Button(action: {
                    testLogging()
                }) {
                    HStack {
                        Image(systemName: "doc.text.fill")
                        Text("测试日志系统")
                    }
                    .font(.title3)
                    .foregroundColor(.white)
                    .padding()
                    .frame(maxWidth: .infinity)
                    .background(Color.green)
                    .cornerRadius(10)
                }
                .padding(.horizontal, 60)
                
                // 语言选择器
                HStack {
                    Text("language".localized)
                        .font(.headline)
                    
                    Picker("language".localized, selection: $languageManager.currentLanguage) {
                        ForEach(Language.allCases, id: \.self) { language in
                            Text(language.displayName).tag(language)
                        }
                    }
                    .pickerStyle(SegmentedPickerStyle())
                }
                .padding(.horizontal, 40)
                
                // 扫描结果显示
                if let result = scannedResult {
                    VStack(spacing: 10) {
                        Text("scan_result".localized)
                            .font(.headline)
                            .foregroundColor(.green)
                        
                        Text(result)
                            .font(.body)
                            .padding()
                            .background(Color.gray.opacity(0.1))
                            .cornerRadius(10)
                            .multilineTextAlignment(.center)
                    }
                    .padding(.horizontal, 40)
                }
                
                Spacer()
            }
            .padding()
            .navigationTitle("MyQrCode")
            .navigationBarTitleDisplayMode(.inline)
        }
        .sheet(isPresented: $showScanner) {
            ScannerView()
        }
        .onReceive(NotificationCenter.default.publisher(for: .scannerDidScanCode)) { notification in
            if let result = notification.object as? String {
                scannedResult = result
            }
        }
        .onAppear {
            // 设置默认语言
            languageManager.currentLanguage = .english
        }
    }
    
    private func testLogging() {
        logDebug("这是一条调试日志", className: "ContentView")
        logInfo("这是一条信息日志", className: "ContentView")
        logWarning("这是一条警告日志", className: "ContentView")
        logError("这是一条错误日志", className: "ContentView")
        logSuccess("这是一条成功日志", className: "ContentView")
    }
}

#if DEBUG
struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}
#endif