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;

namespace Evergreen.Health.Application.Health.Devices.Fragrance;

public sealed class FragranceModule : HealthDeviceModule
{
    private readonly HomeAssistantEntityOptions _entities;
    private readonly bool _wakeDevice;

    public FragranceModule(DeviceActionRunner runner, IOptions<HomeAssistantOptions> options)
        : this(runner, options, wakeDevice: false) { }

    internal FragranceModule(DeviceActionRunner runner, IOptions<HomeAssistantOptions> options, bool wakeDevice) : base(runner)
    {
        _entities = options.Value.Entities;
        _wakeDevice = wakeDevice;
        var duration = wakeDevice ? _entities.WakeFragranceDuration : _entities.FragranceDuration;
        var intervalEntity = wakeDevice ? _entities.WakeFragranceInterval : _entities.FragranceInterval;
        var light = wakeDevice ? _entities.WakeFragranceLight : _entities.FragranceLight;
        var quickRelease = wakeDevice ? _entities.WakeFragranceQuickRelease : _entities.FragranceQuickRelease;
        var autoRelease = wakeDevice ? _entities.WakeFragranceAutoRelease : _entities.FragranceAutoRelease;
        var autoLight = wakeDevice ? _entities.WakeFragranceAutoLight : _entities.FragranceAutoLight;
        var lightAutoOff = wakeDevice ? _entities.WakeFragranceLightAutoOff : _entities.FragranceLightAutoOff;
        DeviceParameterDefinition[] parameters =
        [
            DeviceValues.Number("fragrance_duration", duration, 2, 6, "出香时长"),
            new("fragrance_interval", intervalEntity, value =>
            {
                var interval = DeviceValues.Integer(value, 10, 20, "出香间隔");
                if (interval % 5 != 0) throw new InvalidOperationException("出香间隔仅支持 10、15 或 20 分钟");
                return new("设置出香间隔", intervalEntity, "number", "set_value",
                    new Dictionary<string, object?> { ["value"] = interval });
            }, "出香间隔", 10, 20),
            DeviceValues.Switch("fragrance_light", light, "light", "香氛灯"),
            new("fragrance_quick_release", quickRelease, _ => BuildQuickRelease(quickRelease), "快速出香"),
            DeviceValues.Switch("fragrance_auto_release", autoRelease, "switch", "人来增香"),
            DeviceValues.Switch("fragrance_auto_light", autoLight, "switch", "感应夜灯"),
            DeviceValues.Switch("fragrance_light_auto_off", lightAutoOff, "switch", "夜灯自动关闭")
        ];
        Parameters = wakeDevice ? parameters.Select(parameter => parameter with { Key = $"wake_{parameter.Key}" }).ToArray() : parameters;
    }
    public override string Key => _wakeDevice ? "wake-fragrance" : "fragrance";
    public override string Category => nameof(HealthDeviceCategory.Fragrance);
    public override string DisplayName => _wakeDevice ? "香氛机 唤醒" : "智能香氛机";
    public override string PrimaryEntityId => _wakeDevice ? _entities.WakeFragranceSwitch : _entities.FragranceSwitch;
    public override IReadOnlyList<DeviceParameterDefinition> Parameters { get; }

    internal static DeviceCommand BuildQuickRelease(string entityId) => new("快速出香", entityId, "button", "press");

    public override async Task ExecuteSleepAsync(DeviceSceneContext context, PersonalizedSceneConfig config,
        string constitutionCode, CancellationToken cancellationToken)
    {
        if (_wakeDevice) return;
        await context.RunAsync(new(config.EnableFragrance ? "开启香氛机" : "关闭香氛机",
            PrimaryEntityId, "switch", config.EnableFragrance ? "turn_on" : "turn_off"), cancellationToken);
        if (config.EnableFragrance)
        {
            var level = Math.Clamp(config.FragranceLevel, 1, 3);
            await context.RunAsync(BuildParameterCommand("fragrance_duration", level * 2), cancellationToken);
            await context.RunAsync(BuildParameterCommand("fragrance_interval", 25 - level * 5), cancellationToken);
        }
        await context.RunAsync(new(config.EnableFragrance ? "开启香氛灯" : "关闭香氛灯",
            _entities.FragranceLight, "light", config.EnableFragrance ? "turn_on" : "turn_off",
            config.EnableFragrance ? new Dictionary<string, object?> { ["brightness_pct"] = config.LightBrightnessPercent } : null),
            cancellationToken);
    }

    public override IEnumerable<DeviceCommand> GetShutdownCommands() => _wakeDevice ? [] :
    [
        new("关闭香氛机", PrimaryEntityId, "switch", "turn_off", ExpectedState: "off"),
        new("关闭香氛灯", _entities.FragranceLight, "light", "turn_off", ExpectedState: "off"),
        new("关闭感应夜灯", _entities.FragranceAutoLight, "switch", "turn_off", ExpectedState: "off"),
        new("关闭人来增香", _entities.FragranceAutoRelease, "switch", "turn_off", ExpectedState: "off")
    ];

    public override HomeAssistantScenePresetItem? BuildPreview(PersonalizedSceneConfig config, string constitutionCode)
        => _wakeDevice || string.IsNullOrWhiteSpace(PrimaryEntityId) ? null : Preview(config.EnableFragrance ? "开启香氛释放" : "关闭香氛释放",
            config.EnableFragrance ? "开启香氛机；香氛灯可用时同步开启柔光" : "当前体质预设不启动香氛",
            new() { ["power"] = config.EnableFragrance ? "开启" : "关闭" });
}