using System;
using System.Collections.Generic;
using System.IO;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace Protocol376Simulator.Models
{
    /// <summary>
    /// 测试场景，用于保存和加载测试配置
    /// </summary>
    public class TestScenario
    {
        /// <summary>
        /// 场景名称
        /// </summary>
        public string Name { get; set; }
        
        /// <summary>
        /// 场景描述
        /// </summary>
        public string Description { get; set; }
        
        /// <summary>
        /// 服务器地址
        /// </summary>
        public string ServerAddress { get; set; }
        
        /// <summary>
        /// 服务器端口
        /// </summary>
        public int ServerPort { get; set; }
        
        /// <summary>
        /// 集中器配置列表
        /// </summary>
        public List<ConcentratorConfig> Concentrators { get; set; } = new List<ConcentratorConfig>();
        
        /// <summary>
        /// 测试步骤列表
        /// </summary>
        public List<TestStep> Steps { get; set; } = new List<TestStep>();
        
        /// <summary>
        /// 将测试场景保存到文件
        /// </summary>
        public static void SaveToFile(TestScenario scenario, string filePath)
        {
            string directory = Path.GetDirectoryName(filePath);
            if (!Directory.Exists(directory))
            {
                Directory.CreateDirectory(directory);
            }
            
            var json = JsonSerializer.Serialize(scenario, new JsonSerializerOptions
            {
                WriteIndented = true,
                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
            });
            
            File.WriteAllText(filePath, json);
        }
        
        /// <summary>
        /// 从文件加载测试场景
        /// </summary>
        public static TestScenario LoadFromFile(string filePath)
        {
            if (!File.Exists(filePath))
            {
                throw new FileNotFoundException($"测试场景文件不存在: {filePath}");
            }
            
            string json = File.ReadAllText(filePath);
            return JsonSerializer.Deserialize<TestScenario>(json);
        }
        
        /// <summary>
        /// 获取所有保存的测试场景文件
        /// </summary>
        public static List<string> GetAllScenarioFiles(string directory = "Scenarios")
        {
            if (!Directory.Exists(directory))
            {
                Directory.CreateDirectory(directory);
                return new List<string>();
            }
            
            var files = Directory.GetFiles(directory, "*.json");
            return new List<string>(files);
        }
    }
    
    /// <summary>
    /// 集中器配置
    /// </summary>
    public class ConcentratorConfig
    {
        /// <summary>
        /// 集中器地址
        /// </summary>
        public string Address { get; set; }
        
        /// <summary>
        /// 是否自动登录
        /// </summary>
        public bool AutoLogin { get; set; } = true;
        
        /// <summary>
        /// 是否自动心跳
        /// </summary>
        public bool AutoHeartbeat { get; set; } = true;
        
        /// <summary>
        /// 是否自动响应
        /// </summary>
        public bool AutoResponse { get; set; } = true;
        
        /// <summary>
        /// 是否启用断线重连
        /// </summary>
        public bool AutoReconnect { get; set; } = true;
        
        /// <summary>
        /// 最大重连尝试次数
        /// </summary>
        public int MaxReconnectAttempts { get; set; } = 5;
        
        /// <summary>
        /// 重连延迟时间(秒)
        /// </summary>
        public int ReconnectDelaySeconds { get; set; } = 5;
        
        /// <summary>
        /// 初始表计数据
        /// </summary>
        public Dictionary<byte, string> InitialMeterData { get; set; } = new Dictionary<byte, string>();
    }
    
    /// <summary>
    /// 测试步骤
    /// </summary>
    public class TestStep
    {
        /// <summary>
        /// 步骤类型枚举
        /// </summary>
        [JsonConverter(typeof(JsonStringEnumConverter))]
        public enum StepType
        {
            Login,
            Heartbeat,
            ValveControl,
            DataUpload,
            ReadData,
            SetParameter,
            Wait,
            SetMeterData
        }
        
        /// <summary>
        /// 步骤类型
        /// </summary>
        public StepType Type { get; set; }
        
        /// <summary>
        /// 目标集中器地址，"all"表示所有集中器
        /// </summary>
        public string ConcentratorAddress { get; set; }
        
        /// <summary>
        /// 步骤描述
        /// </summary>
        public string Description { get; set; }
        
        /// <summary>
        /// 步骤参数，根据不同步骤类型使用不同的参数
        /// </summary>
        public Dictionary<string, object> Parameters { get; set; } = new Dictionary<string, object>();
        
        /// <summary>
        /// 执行本步骤前的延迟时间(毫秒)
        /// </summary>
        public int DelayBeforeStepMs { get; set; } = 0;
        
        /// <summary>
        /// 执行下一步骤前的延迟时间(毫秒)
        /// </summary>
        public int DelayAfterStepMs { get; set; } = 1000;
    }
}