using System;
using System.Collections.Generic;

namespace Models;

/// <summary>
///     Unit 组件集合（组合优于继承）
///     设计说明：
///     1) UnitModel 只是“组件容器”，具体能力拆分到小组件中，便于复用与替换。
///     2) 组件保持低内聚小职责，避免“巨型基类”造成的隐式耦合。
///     3) 这些组件只描述数据，不包含具体行为，行为交给系统/控制器层。
///     注意事项：
///     - 不引用 Godot 类型，保持纯数据层，利于测试与序列化。
///     - 标识/标签使用 string Id，方便 Mod 扩展新增内容。
///     未来扩展：
///     - 可以给组件增加“快照/脏标记”，用于高效 UI 刷新。
///     - 需要网络联机时，可在这里加入序列化版本号。
/// </summary>
public static class UnitComponents {
	/// <summary>
	///     网格位置组件
	/// </summary>
	public readonly struct GridPosition {
        public int X { get; }
        public int Y { get; }

        public GridPosition(int x, int y) {
            X = x;
            Y = y;
        }

        public static GridPosition Zero => new(0, 0);
    }

	/// <summary>
	///     单位身份组件
	/// </summary>
	public sealed class UnitIdentity {
        public UnitIdentity(string name, string nameKey = null) {
            Name = name;
            NameKey = nameKey;
        }

        public Guid Id { get; } = Guid.NewGuid();
        public string Name { get; set; }
        public string NameKey { get; set; }
    }

	/// <summary>
	///     单位属性组件
	/// </summary>
	public sealed class UnitAttributes {
        public UnitAttributes(Random random = null) {
            var rng = random ?? Random.Shared;
            Academic = new PropertyValue(rng.Next(0, 100));
            Engineering = new PropertyValue(rng.Next(0, 100));
            Writing = new PropertyValue(rng.Next(0, 100));
            Financial = new PropertyValue(rng.Next(0, 100));
            Social = new PropertyValue(rng.Next(0, 100));
            Activation = new PropertyValue(rng.Next(0, 100));
        }

        public PropertyValue Academic { get; set; }
        public PropertyValue Engineering { get; set; }
        public PropertyValue Writing { get; set; }
        public PropertyValue Financial { get; set; }
        public PropertyValue Social { get; set; }
        public PropertyValue Activation { get; set; }
    }

	/// <summary>
	///     单位状态组件
	/// </summary>
	public sealed class UnitStatuses {
        public UnitStatuses() {
            Stress = new StatusValue();
            Sanity = new StatusValue(100);
            Mood = new PropertyValue(50);
            MoveSpeed = new PropertyValue(50, 0, 200);
        }

        public StatusValue Stress { get; set; }
        public StatusValue Sanity { get; set; }
        public PropertyValue Mood { get; set; }
        public PropertyValue MoveSpeed { get; set; }
    }

	/// <summary>
	///     单位标签组件
	/// </summary>
	public sealed class UnitTags {
        public string DisciplineId { get; set; }
        public List<string> ArchetypeIds { get; } = new();
        public List<string> RoleIds { get; } = new();
        public List<string> TraitIds { get; } = new();

        public bool HasTrait(string traitId) {
            return TraitIds.Contains(traitId);
        }
    }

	/// <summary>
	///     单位指派组件
	/// </summary>
	public sealed class UnitAssignment {
        public Guid? CurrentTaskId { get; set; }
    }

	/// <summary>
	///     单位位置组件
	/// </summary>
	public sealed class UnitPlacement {
        public GridPosition Current { get; set; } = GridPosition.Zero;
        public GridPosition Target { get; set; } = GridPosition.Zero;
    }

	/// <summary>
	///     单位装备组件
	/// </summary>
	public sealed class UnitEquipment {
        public List<string> EquippedItemIds { get; } = new();
    }
}