using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Moq;
using FluentAssertions;
using Xunit;
using Haoliang.Api.Controllers;
using Haoliang.Core.Services;
using Haoliang.Models.Common;

namespace Haoliang.Tests.Controllers
{
    public class SystemControllerTests
    {
        private readonly Mock<ISystemConfigService> _configService;
        private readonly Mock<ILoggingService> _loggingService;
        private readonly Mock<ISchedulerService> _schedulerService;
        private readonly SystemController _controller;

        public SystemControllerTests()
        {
            _configService = new Mock<ISystemConfigService>();
            _loggingService = new Mock<ILoggingService>();
            _schedulerService = new Mock<ISchedulerService>();
            _controller = new SystemController(_configService.Object, _loggingService.Object, _schedulerService.Object);
        }

        [Fact]
        public async Task GetAllConfigs_WhenSuccess_ReturnsOk()
        {
            _configService.Setup(s => s.GetAllConfigsAsync())
                .ReturnsAsync(new List<Haoliang.Core.Services.SystemConfig>());

            var result = await _controller.GetAllConfigs();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetAllConfigs_WhenException_Returns500()
        {
            _configService.Setup(s => s.GetAllConfigsAsync())
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetAllConfigs();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetConfig_WhenFound_ReturnsOk()
        {
            _configService.Setup(s => s.GetConfigAsync("key1"))
                .ReturnsAsync(new Haoliang.Core.Services.SystemConfig { Key = "key1" });

            var result = await _controller.GetConfig("key1");

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetConfig_WhenNotFound_ReturnsNotFound()
        {
            _configService.Setup(s => s.GetConfigAsync("missing"))
                .ReturnsAsync((Haoliang.Core.Services.SystemConfig?)null);

            var result = await _controller.GetConfig("missing");

            result.Should().BeOfType<NotFoundObjectResult>();
        }

        [Fact]
        public async Task GetConfig_WhenException_Returns500()
        {
            _configService.Setup(s => s.GetConfigAsync("key"))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetConfig("key");

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task SetConfig_WhenSuccess_ReturnsOk()
        {
            _configService.Setup(s => s.SetConfigAsync("key1", "value1"))
                .ReturnsAsync(new Haoliang.Core.Services.SystemConfig { Key = "key1", Value = "value1" });

            var result = await _controller.SetConfig("key1", new SetConfigRequest { Value = "value1" });

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task SetConfig_WhenException_Returns500()
        {
            _configService.Setup(s => s.SetConfigAsync(It.IsAny<string>(), It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.SetConfig("key", new SetConfigRequest { Value = "val" });

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task DeleteConfig_WhenFound_ReturnsOk()
        {
            _configService.Setup(s => s.DeleteConfigAsync("key1"))
                .ReturnsAsync(true);

            var result = await _controller.DeleteConfig("key1");

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task DeleteConfig_WhenNotFound_ReturnsNotFound()
        {
            _configService.Setup(s => s.DeleteConfigAsync("missing"))
                .ReturnsAsync(false);

            var result = await _controller.DeleteConfig("missing");

            result.Should().BeOfType<NotFoundObjectResult>();
        }

        [Fact]
        public async Task DeleteConfig_WhenException_Returns500()
        {
            _configService.Setup(s => s.DeleteConfigAsync(It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.DeleteConfig("key");

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task ConfigExists_WhenSuccess_ReturnsOk()
        {
            _configService.Setup(s => s.ConfigExistsAsync("key1"))
                .ReturnsAsync(true);

            var result = await _controller.ConfigExists("key1");

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task ConfigExists_WhenException_Returns500()
        {
            _configService.Setup(s => s.ConfigExistsAsync(It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.ConfigExists("key");

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetConfigsByCategory_WhenSuccess_ReturnsOk()
        {
            _configService.Setup(s => s.GetConfigsByCategoryAsync("cat1"))
                .ReturnsAsync(new List<Haoliang.Core.Services.SystemConfig>());

            var result = await _controller.GetConfigsByCategory("cat1");

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetConfigsByCategory_WhenException_Returns500()
        {
            _configService.Setup(s => s.GetConfigsByCategoryAsync(It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetConfigsByCategory("cat");

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task RefreshConfigCache_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.RefreshConfigCache();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task RefreshConfigCache_WhenException_Returns500()
        {
            _configService.Setup(s => s.RefreshConfigCacheAsync())
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.RefreshConfigCache();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetLogs_WhenSuccess_ReturnsOk()
        {
            _loggingService.Setup(s => s.GetLogsAsync(null, null, null, null))
                .ReturnsAsync(new List<Haoliang.Models.System.LogEntry>());

            var result = await _controller.GetLogs();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetLogs_WhenException_Returns500()
        {
            _loggingService.Setup(s => s.GetLogsAsync(It.IsAny<Haoliang.Models.System.LogLevel?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>(), It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetLogs();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetErrorLogs_WhenSuccess_ReturnsOk()
        {
            _loggingService.Setup(s => s.GetErrorLogsAsync(null, null))
                .ReturnsAsync(new List<Haoliang.Models.System.LogEntry>());

            var result = await _controller.GetErrorLogs();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetErrorLogs_WhenException_Returns500()
        {
            _loggingService.Setup(s => s.GetErrorLogsAsync(It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetErrorLogs();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetLogCount_WhenSuccess_ReturnsOk()
        {
            _loggingService.Setup(s => s.GetLogCountAsync(null, null, null))
                .ReturnsAsync(5);

            var result = await _controller.GetLogCount();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetLogCount_WhenException_Returns500()
        {
            _loggingService.Setup(s => s.GetLogCountAsync(It.IsAny<Haoliang.Models.System.LogLevel?>(), It.IsAny<DateTime?>(), It.IsAny<DateTime?>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetLogCount();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task ArchiveLogs_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.ArchiveLogs(30);

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task ArchiveLogs_WhenException_Returns500()
        {
            _loggingService.Setup(s => s.ArchiveLogsAsync(It.IsAny<int>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.ArchiveLogs(30);

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task ClearLogs_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.ClearLogs();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task ClearLogs_WhenException_Returns500()
        {
            _loggingService.Setup(s => s.ClearLogsAsync())
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.ClearLogs();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetScheduledTasks_WhenSuccess_ReturnsOk()
        {
            _schedulerService.Setup(s => s.GetAllScheduledTasksAsync())
                .ReturnsAsync(new List<ScheduledTask>());

            var result = await _controller.GetScheduledTasks();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetScheduledTasks_WhenException_Returns500()
        {
            _schedulerService.Setup(s => s.GetAllScheduledTasksAsync())
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetScheduledTasks();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetScheduledTask_WhenFound_ReturnsOk()
        {
            _schedulerService.Setup(s => s.GetTaskByIdAsync("task1"))
                .ReturnsAsync(new ScheduledTask { TaskId = "task1" });

            var result = await _controller.GetScheduledTask("task1");

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetScheduledTask_WhenNotFound_ReturnsNotFound()
        {
            _schedulerService.Setup(s => s.GetTaskByIdAsync("missing"))
                .ReturnsAsync((ScheduledTask?)null);

            var result = await _controller.GetScheduledTask("missing");

            result.Should().BeOfType<NotFoundObjectResult>();
        }

        [Fact]
        public async Task GetScheduledTask_WhenException_Returns500()
        {
            _schedulerService.Setup(s => s.GetTaskByIdAsync(It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.GetScheduledTask("task1");

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task CreateScheduledTask_WhenSuccess_ReturnsOk()
        {
            var task = new ScheduledTask { TaskId = "task1", Name = "Test" };

            var result = await _controller.CreateScheduledTask(task);

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task CreateScheduledTask_WhenException_Returns500()
        {
            _schedulerService.Setup(s => s.ScheduleTaskAsync(It.IsAny<ScheduledTask>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.CreateScheduledTask(new ScheduledTask());

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task ExecuteTask_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.ExecuteTask("task1");

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task ExecuteTask_WhenException_Returns500()
        {
            _schedulerService.Setup(s => s.ExecuteTaskAsync(It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.ExecuteTask("task1");

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task RemoveTask_WhenFound_ReturnsOk()
        {
            _schedulerService.Setup(s => s.RemoveTaskAsync("task1"))
                .ReturnsAsync(true);

            var result = await _controller.RemoveTask("task1");

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task RemoveTask_WhenNotFound_ReturnsNotFound()
        {
            _schedulerService.Setup(s => s.RemoveTaskAsync("missing"))
                .ReturnsAsync(false);

            var result = await _controller.RemoveTask("missing");

            result.Should().BeOfType<NotFoundObjectResult>();
        }

        [Fact]
        public async Task RemoveTask_WhenException_Returns500()
        {
            _schedulerService.Setup(s => s.RemoveTaskAsync(It.IsAny<string>()))
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.RemoveTask("task1");

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task StartScheduler_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.StartScheduler();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task StartScheduler_WhenException_Returns500()
        {
            _schedulerService.Setup(s => s.StartSchedulerAsync())
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.StartScheduler();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task StopScheduler_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.StopScheduler();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task StopScheduler_WhenException_Returns500()
        {
            _schedulerService.Setup(s => s.StopSchedulerAsync())
                .ThrowsAsync(new Exception("test"));

            var result = await _controller.StopScheduler();

            var objResult = result.Should().BeOfType<ObjectResult>().Subject;
            objResult.StatusCode.Should().Be(500);
        }

        [Fact]
        public async Task GetSystemStatus_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.GetSystemStatus();

            result.Should().BeOfType<OkObjectResult>();
        }

        [Fact]
        public async Task GetSystemHealth_WhenSuccess_ReturnsOk()
        {
            var result = await _controller.GetSystemHealth();

            result.Should().BeOfType<OkObjectResult>();
        }
    }
}