cfc/cfc-desktop-pet/src/XafPet.Desktop/PetEngine/StateManager.cs

using System.Text.RegularExpressions;

namespace XafPet.Desktop.PetEngine;

/// <summary>把 CFC API 数据转换为宠物状态（纯逻辑，无 UI 依赖）</summary>
public static class StateManager
{
    /// <summary>核心状态映射。优先级：Sleeping > Excited > Happy > Worried > Busy > Sad > Tired/Energetic/Curious > Idle</summary>
    public static PetState MapState(
        List<CfcTask>? tasks,
        EnergyOverview? energy,
        DailyCheckin? checkin,
        bool userInactive)
    {
        // 1. 用户无操作 → 睡眠（最高优先级，除非有未完成任务需要提醒）
        var hasPendingTasks = tasks?.Any(t => t.Status is "PENDING" or "IN_PROGRESS") ?? false;
        if (userInactive && !hasPendingTasks) return PetState.Sleeping;

        // 2. 健康打卡完成 → 兴奋（次高）
        if (checkin is { Checked: true }) return PetState.Excited;

        // 3. 任务状态
        if (tasks is { Count: > 0 })
        {
            var allDone = tasks.All(t => t.Status == "COMPLETED");
            if (allDone) return PetState.Happy;

            // 超期未完成（dueDate 早于今天且非完成态）→ 担忧
            var today = DateOnly.FromDateTime(DateTime.Today);
            var overdue = tasks.Any(t =>
                t.Status is "PENDING" or "IN_PROGRESS" &&
                DateOnly.TryParse(t.DueDate, out var due) && due < today);
            if (overdue) return PetState.Worried;

            return PetState.Busy;
        }

        // 4. 五维能量
        if (energy is { Dimensions.Count: > 0 })
        {
            var dims = energy.Dimensions;
            var allLow = dims.All(d => d.Value < 30);
            if (allLow) return PetState.Sad;

            var body = dims.FirstOrDefault(d => d.Dimension == "身");
            if (body != null && body.Value < 30) return PetState.Tired;
            if (body != null && body.Value >= 85) return PetState.Energetic;

            var mind = dims.FirstOrDefault(d => d.Dimension == "智");
            if (mind != null && mind.Value >= 85) return PetState.Curious;
        }

        return PetState.Idle;
    }

    /// <summary>枚举 → camelCase（JS 侧状态名）。WaitingForInteraction → waitingForInteraction</summary>
    public static string StateToCamelCase(PetState state)
    {
        var name = state.ToString();
        return Regex.Replace(name, "(^[A-Z])", m => m.Value.ToLowerInvariant());
    }
}