//
//  ViewController.swift
//  FusionAds
//
//  Created by Haoyi on 02/28/2025.
//  Copyright (c) 2025 Haoyi. All rights reserved.
//

import UIKit
import FusionAds

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        Logger.setLogLevel(Logger.LogLevel.verbose)
        
        FusionAdsSdk.registerExternalAdPlatformSdkMapping(platform: AdPlatform.test, initializer: HappyPathAdsSdk.obtain)
        
//        testEngine()
//        testMaxEngine()
//        testIronSourceEngine()
//        testAdMobEngine()
        testMaxOfWithSameValue()
        do {
            try testAdsProfileJson()
            try testAdEngineConfigJson()
            testLogging()
        } catch {}
    }
    
    func testAdEngineConfigJson() throws {
        let config = AdEngineConfig(strategy: 0, faUnitId: "default", config: [
            "test_key": "test_value",
            "test_int_key": 1,
            "test_bool_key": false,
            "test_nested_array": ["1", "2", "3"],
            "test_nested_dict": ["test":"value"]
        ])
        
        let json = try! jsonEncode(config)
        let configOut = try! jsonDecode(AdEngineConfig.self, from: json)
        print(json)
        print(configOut)
    }
    
    private func jsonEncode(_ value: any Codable) throws -> String {
        let encoder = JSONEncoder()
        let data = try! encoder.encode(value)
        return String.init(data: data, encoding: .utf8)!
    }
    
    private func jsonDecode<T>(_ type: T.Type, from json: String) throws -> T where T : Decodable {
        let jsonDecoder = JSONDecoder()
        return try! jsonDecoder.decode(type, from: json.data(using: .utf8)!)
    }
    
    func testAdsProfileJson() throws {

        let jsonEncoder = JSONEncoder()
        let adsProfile = AdsProfile(adPlatforms: [AdPlatform.test], maxSdkKey: "")
        let data = try! jsonEncoder.encode(adsProfile)
        print(String.init(data: data, encoding: .utf8)!)
        
        let jsonData = #"{"ad_platforms":["TEST"],"max_sdk_key":"","amazon_app_id":null,"pubmatic_store_url":null,"uid2_token":null,"user_id":"","tp_creative_key":"","debug_mode":false,"segments":{"segments":[]}}"#.data(using: .utf8)!
        let jsonDecoder = JSONDecoder()
        let adsProfileFromJson = try! jsonDecoder.decode(AdsProfile.self, from: jsonData)
        print(adsProfileFromJson)
        print(adsProfile)
    }
    
    @MainActor func testEngine() {
        Task {
            let sdk = FusionAdsSdk(controller: self)
            let result = await sdk.initialize(adsProfile: AdsProfile(adPlatforms:[AdPlatform.max], maxSdkKey: "max_sdk_key"))
            assert(result, "sdk initialized success!")
            
            let engineConfigExtras = [
                "ad_platform": "test",
                "ad_unit_id" : "112233",
                "ad_amz_slot_id": "test_slot"
            ]
            
            let engine = sdk.createInterstitialAdEngine(adEngineConfig: AdEngineConfig(strategy: 0, faUnitId: "default", config: engineConfigExtras))
            
            assert(engine != nil, "engine is Nil")
            engine!.initialize()
            try await Task.sleep(nanoseconds: 1000_000_000)
            assert(engine!.load(), "load failed!")
            try await Task.sleep(nanoseconds: 1000_000_000)
            assert(engine!.show(InterstitialShowRequest(placement: "1234_mock")), "show failed!")
            try await Task.sleep(nanoseconds: 1000_000_000)
            assert(engine!.destroy(), "destroy failed!")
        }
    }
    
    func testMaxEngine() {
        testPlatformEngine(adPlatform: AdPlatform.max, adUnitId: "87a262be42a9b334")
    }
    
    func testIronSourceEngine() {
        testPlatformEngine(adPlatform: AdPlatform.ironSource, adUnitId: "wmgt0712uuux8ju4")
    }
    
    func testAdMobEngine() {
        testPlatformEngine(adPlatform: AdPlatform.adMob, adUnitId: "ca-app-pub-3940256099942544/4411468910")
    }
    
    var logger: FileLogHandler? = nil
    var rotationLogger: FileLogHandler? = nil
    var levelLogger: FileLogHandler? = nil
    var manualRotationLogger: FileLogHandler? = nil
    
    func testLogging() {
        print("开始测试 FileLogHandler...")
        let fileManager = FileManager.default
         // 创建测试目录
        let documentsDir = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first!
         let testLogDir = documentsDir.appendingPathComponent("Logs/guru_app", isDirectory: true)
         
         // 测试案例1: 基本日志记录
         print("测试1: 基本日志记录")
         let logger = FileLogHandler(directory: "guru_app", filename: "test.log")
        logger.log("test", "这是一条调试消息", level: .debug)
        logger.log("test", "这是一条信息消息", level: .info)
        logger.log("test", "这是一条警告消息", level: .warning)
        logger.log("test", "这是一条错误消息", level: .error)
        logger.log("test", "这是一条致命消息", level: .fatal)
         logger.log("test", "自定义日志级别消息", level: .info)
        self.logger = logger
         print("基本日志写入完成，日志文件位置: \(testLogDir.appendingPathComponent("test.log").path)")
        
        
         // 测试案例3: 日志轮转
         print("测试3: 测试日志轮转")
         let rotationConfig = FileLogHandler.RotationConfig(
             maxFileSize: 1024, // 1KB，设置小一点以便测试轮转
             maxBackupCount: 3  // 保留3个备份
         )
         let rotationLogger = FileLogHandler(
             directory: "guru_app",
             filename: "rotation_test.log",
             rotationConfig: rotationConfig
         )
        self.rotationLogger = rotationLogger
         
         // 写入足够多的数据以触发轮转
         print("写入数据以触发日志轮转...")
         for i in 1...100 {
             rotationLogger.log("test", "这是日志条目 #\(i): " + String(repeating: "测试数据 ", count: 10), level: .info)
         }
         
         // 验证轮转后的文件
         if let files = try? fileManager.contentsOfDirectory(atPath: testLogDir.path) {
             let rotationFiles = files.filter { $0.starts(with: "rotation_test.log") }
             print("找到的轮转日志文件: \(rotationFiles)")
         }
         
         // 测试案例4: 自定义级别过滤
         print("测试4: 日志级别过滤")
         let levelLogger = FileLogHandler(
            directory: "guru_app",
            filename: "level_test.log",
             minimumLogLevel: .warning
         )
        self.levelLogger = levelLogger
         
        levelLogger.log("level_test", "这是一条调试消息", level: .debug)
        levelLogger.log("level_test", "这是一条信息消息", level: .info)
        levelLogger.log("level_test", "这是一条警告消息", level: .warning)
        levelLogger.log("level_test", "这是一条错误消息", level: .error)
        levelLogger.log("level_test", "这是一条致命消息", level: .fatal)
        levelLogger.log("level_test", "自定义日志级别消息", level: .info)
         print("级别过滤测试完成")
         
         // 测试案例5: 手动轮转
         print("测试5: 手动轮转")
         let manualRotationLogger = FileLogHandler(directory: "guru_app", filename: "manual_rotation.log")
         manualRotationLogger.log("test", "轮转前的日志条目")
         manualRotationLogger.rotateLogFile()
         manualRotationLogger.log("test", "轮转后的日志条目")
         print("手动轮转测试完成")
        self.manualRotationLogger = manualRotationLogger
         
         // 测试案例6: 轮转后继续写入
         print("测试6: 轮转后继续写入")
         for i in 1...5 {
             rotationLogger.log("test", "轮转后的日志条目 #\(i)")
         }
         print("轮转后写入测试完成")
         
         // 读取日志文件内容进行验证
         func readLogFile(at path: String) -> String? {
             return try? String(contentsOfFile: path, encoding: .utf8)
         }
         if let logContent = readLogFile(at: testLogDir.appendingPathComponent("test.log").path) {
             print("基本日志文件的前200个字符:")
             print(String(logContent.prefix(200)))
         }
         
         print("FileLogHandler 测试完成")
     }
    
    
    func testPlatformEngine(adPlatform: AdPlatform, adUnitId: String) {
        Task {@MainActor in
            let sdk = FusionAdsSdk(controller: self)
            let result = await sdk.initialize(adsProfile: AdsProfile(adPlatforms:[adPlatform], maxSdkKey: "V5I0i-vOTXkc_HEyqLg0lNm_ivlzp1wPVF3Vs7Jk4ix6WMAwEKGHMpugavZp_7xgss186Frvss23NGSWZXSago", ironSourceSdkKey: "8545d445"))
            assert(result, "sdk initialized success!")
            
            let engineConfigExtras = [
                "ad_platform": adPlatform.name,
                "ad_unit_id" : adUnitId,
            ]
            
            let engine = sdk.createInterstitialAdEngine(adEngineConfig: AdEngineConfig(strategy: 0, faUnitId: "default", config: engineConfigExtras))
            
            assert(engine != nil, "engine is Nil")
            engine!.initialize()
            try await Task.sleep(nanoseconds: 1000_000_000)
            assert(engine!.load(), "load failed!")
            try await Task.sleep(nanoseconds: 20_000_000_000)
            assert(engine!.currentStateIdentifier == InterstitialAdEngine.AdState.Identifier.LOADED, "not loaded after 20s, current state is \(engine!.currentStateIdentifier.name)")
            assert(engine!.show(InterstitialShowRequest(placement: "1234_mock")), "show failed!")
            try await Task.sleep(nanoseconds: 5000_000_000)
            assert(engine!.destroy(), "destroy failed!")
        }
    }
    
    func testMaxOfWithSameValue() {
        let list = [TestValue("A", 1), TestValue("B", 2), TestValue("C", 3), TestValue("D", 3)]
        
        let value = list.max(by: { $0.value <= $1.value })
        
        assert(value?.name == "D")
        print("Yes!")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

private struct TestValue {
    let name: String;
    let value: Int;
    
    init(_ name: String, _ value: Int) {
        self.name = name
        self.value = value
    }
}