using Evergreen.Health.Application.Health.Devices.Contracts;
using Evergreen.Health.Application.Health.Integrations.HomeAssistant;
using Evergreen.Health.Application.Health.Models;
using Evergreen.Health.Application.Health.Scenes;
using Microsoft.Extensions.Options;
using Evergreen.Health.Application.Health.Services;

namespace Evergreen.Health.Application.Health.Devices.Mattress;

public sealed class MattressModule : HealthDeviceModule, ILightOffHandler
{
    private readonly HomeAssistantOptions _options;
    private HomeAssistantEntityOptions Entities => _options.Entities;
    public MattressModule(DeviceActionRunner runner, IOptions<HomeAssistantOptions> options) : base(runner)
    {
        _options = options.Value;
        var modes = new[] { "无", "瑜伽助眠", "智能适配", "智能腰托" };
        var parts = new[] { "无", "背部", "腰部", "牵引", "腿部", "全身" };
        var parameters = new List<DeviceParameterDefinition>
        {
            DeviceValues.Number("mattress_left_heating", Entities.MattressLeftHeatingLevel, 0, 4, "床垫左侧加热档位"),
            DeviceValues.Number("mattress_right_heating", Entities.MattressRightHeatingLevel, 0, 4, "床垫右侧加热档位"),
            DeviceValues.Select("mattress_left_mode", Entities.MattressLeftMode, modes, "床垫左侧承托模式", true),
            DeviceValues.Select("mattress_right_mode", Entities.MattressRightMode, modes, "床垫右侧承托模式", true),
            DeviceValues.Select("mattress_massage_left_part", Entities.MattressLeftMassagePart, parts, "左侧按摩部位",
                intent: DeviceCommandIntent.StartMassage),
            DeviceValues.Select("mattress_massage_right_part", Entities.MattressRightMassagePart, parts, "右侧按摩部位",
                intent: DeviceCommandIntent.StartMassage),
            DeviceValues.Select("mattress_massage_level", Entities.MattressMassageLevel, ["轻柔", "强劲"], "按摩力度")
        };
        foreach (var (zone, entityId) in Entities.MattressFirmness)
            parameters.Add(DeviceValues.Select($"mattress_firmness_{zone}", entityId,
                ["最软", "很软", "稍软", "稍硬", "很硬", "最硬"], $"床垫{ZoneName(zone)}软硬度"));
        Parameters = parameters;
    }
    public override string Key => "mattress";
    public override string Category => nameof(HealthDeviceCategory.Sleep);
    public override string DisplayName => "智能床垫";
    public override string PrimaryEntityId => ""; // 床垫没有单一总开关，不能把加热实体冒充开关。
    public override IReadOnlyList<DeviceParameterDefinition> Parameters { get; }

    public override async Task ExecuteSleepAsync(DeviceSceneContext context, PersonalizedSceneConfig config,
        string constitutionCode, CancellationToken cancellationToken)
    {
        if (!_options.SleepScene.EnableMattress) return;
        await context.RunAsync(BuildParameterCommand("mattress_left_heating", config.MattressHeatingLevel), cancellationToken);
        await context.RunAsync(BuildParameterCommand("mattress_right_heating", config.MattressHeatingLevel), cancellationToken);
        var firmness = MattressComfortService.FirmnessName(config.MattressLeftFirmness);
        if (firmness is null)
            context.Results.Add(new() { Name = "按 BMI 调节床垫软硬度", Status = "Skipped",
                Message = "健康档案缺少身高或体重，未自动修改软硬度" });
        else
            foreach (var zone in Entities.MattressFirmness.Keys)
                await context.RunAsync(BuildParameterCommand($"mattress_firmness_{zone}", firmness), cancellationToken);
        var modeCommand = BuildParameterCommand("mattress_left_mode", "智能适配");
        await context.RunAsync(modeCommand, cancellationToken);
        if (context.Results.Last().Status == "Succeeded")
            await Runner.VerifyBatchAsync([modeCommand], context.Results, cancellationToken);
        // 气泵调节结束后再启动按摩，保持真实设备所需的顺序。
        await Runner.DelayAsync(TimeSpan.FromSeconds(2), cancellationToken);
        await context.RunAsync(BuildParameterCommand("mattress_massage_left_part", "无"), cancellationToken);
        await context.RunAsync(BuildParameterCommand("mattress_massage_level", "轻柔"), cancellationToken);
        var massage = BuildParameterCommand("mattress_massage_right_part", "全身") with { ExpectedState = "全身" };
        await context.RunAsync(massage, cancellationToken);
        if (context.Results.Last().Status == "Succeeded")
        {
            await Runner.DelayAsync(TimeSpan.FromSeconds(3), cancellationToken);
            await Runner.VerifyBatchAsync([massage], context.Results, cancellationToken);
        }
    }

    public IEnumerable<DeviceCommand> MassageOffCommands() =>
    [
        new("关闭床垫右侧按摩", Entities.MattressRightMassagePart, "select", "select_option",
            new Dictionary<string, object?> { ["option"] = "无" }, "无"),
        new("关闭床垫左侧按摩", Entities.MattressLeftMassagePart, "select", "select_option",
            new Dictionary<string, object?> { ["option"] = "无" }, "无")
    ];

    public override IEnumerable<DeviceCommand> GetShutdownCommands()
    {
        foreach (var command in MassageOffCommands()) yield return command;
        // 未参与自动启动不等于无需关闭：手动开启的加热也要随一键关闭停止。
        yield return new("关闭床垫左侧加热", Entities.MattressLeftHeatingLevel, "number", "set_value",
            new Dictionary<string, object?> { ["value"] = 0 }, "0");
        yield return new("关闭床垫右侧加热", Entities.MattressRightHeatingLevel, "number", "set_value",
            new Dictionary<string, object?> { ["value"] = 0 }, "0");
    }

    public async Task HandleAsync(CancellationToken cancellationToken)
    {
        var commands = MassageOffCommands().Where(command => !string.IsNullOrWhiteSpace(command.EntityId)).ToArray();
        var results = new List<HomeAssistantActionResult>();
        foreach (var command in commands)
            await Runner.RunAsync(new Dictionary<string, HomeAssistantState>(), results, command, cancellationToken, false);
        await Runner.VerifyBatchAsync(commands, results, cancellationToken);
        if (results.Any(result => result.Status == "Failed"))
            throw new InvalidOperationException("床垫按摩未确认关闭：" +
                string.Join("；", results.Where(result => result.Status == "Failed").Select(result => result.Message)));
    }

    public override HomeAssistantScenePresetItem? BuildPreview(PersonalizedSceneConfig config, string constitutionCode)
    {
        if (!_options.SleepScene.EnableMattress || !EntityIds.Any()) return null;
        var firmness = MattressComfortService.FirmnessName(config.MattressLeftFirmness) ?? "未自动调节";
        var preview = Preview("按室温和 BMI 调节床垫并开启右侧按摩",
            $"左右加热 {config.MattressHeatingLevel} 档 · 软硬度{firmness} · 右侧全身轻柔按摩",
            new() { ["heating_level"] = config.MattressHeatingLevel, ["firmness"] = firmness,
                ["right_massage_part"] = "全身", ["massage_level"] = "轻柔" });
        preview.EntityId = EntityIds.First();
        return preview;
    }

    public static string ZoneName(string zone) => zone switch
    {
        "left_shoulder" => "左肩", "right_shoulder" => "右肩", "left_back" => "左背", "right_back" => "右背",
        "left_waist" => "左腰", "right_waist" => "右腰", "left_lumbar" => "左腰椎", "right_lumbar" => "右腰椎",
        "left_hip" => "左臀", "right_hip" => "右臀", "left_leg" => "左腿", "right_leg" => "右腿", _ => zone
    };
}