using System;
using System.Collections.Generic;

namespace Models;

/// <summary>
/// 任务类型枚举
/// </summary>
public enum TaskType 
{ 
    Paper,      // 论文：重学术(Intelligence) + 表达(Expression)
    Project,    // 项目：重工程(Strength) + 学术(Intelligence)
    Admin       // 杂务：消耗体力，低收益，但必须做
}

/// <summary>
/// 任务 (Task)
/// 核心游戏对象之一，相当于地图上的“怪物”。
/// 学生需要“攻击”任务（消耗工作量）来完成它。
/// </summary>
public class Task
{
    public Guid Id { get; private set; } = Guid.NewGuid();
    
    /// <summary>
    /// 任务名称
    /// </summary>
    public string Name { get; set; }
    
    /// <summary>
    /// 任务类型
    /// </summary>
    public TaskType Type { get; set; }
    
    /// <summary>
    /// 总工作量 (HP)
    /// </summary>
    public float TotalWorkload { get; set; }
    
    /// <summary>
    /// 当前进度
    /// </summary>
    public float CurrentProgress { get; set; }
    
    /// <summary>
    /// 难度系数 (Defense)
    /// 影响学生攻克该任务的效率。若学生能力低于难度，效率会大幅下降。
    /// </summary>
    public float Difficulty { get; set; }
    
    /// <summary>
    /// 截止日期 (剩余回合数)
    /// 归零时如果未完成，触发失败惩罚。
    /// </summary>
    public int Deadline { get; set; }

    /// <summary>
    /// 奖励：经费
    /// </summary>
    public int RewardMoney { get; set; }
    
    /// <summary>
    /// 奖励：声望
    /// </summary>
    public int RewardReputation { get; set; }

    /// <summary>
    /// 任务是否已完成
    /// </summary>
    public bool IsCompleted => CurrentProgress >= TotalWorkload;
    
    /// <summary>
    /// 任务是否已失败（超时未完成）
    /// </summary>
    public bool IsFailed => Deadline <= 0 && !IsCompleted;

    public Task(string name, TaskType type, float workload, int deadline)
    {
        Name = name;
        Type = type;
        TotalWorkload = workload;
        Deadline = deadline;
        CurrentProgress = 0;
        Difficulty = 1.0f;
    }

    /// <summary>
    /// 增加进度
    /// </summary>
    /// <param name="amount">工作量数值</param>
    public void AddProgress(float amount)
    {
        CurrentProgress += amount;
        if (CurrentProgress > TotalWorkload) CurrentProgress = TotalWorkload;
    }
}