import { _decorator, Component, Node } from 'cc';
import { WeaponConfig } from '../../Core/ConfigManager';
const { ccclass, property } = _decorator;

/**
 * 武器信息组件
 * 用于存储和管理挂载到武器节点上的武器配置信息
 */
@ccclass('WeaponInfo')
export class WeaponInfo extends Component {
    
    // 编辑器面板可见属性
    @property({ displayName: "武器ID", readonly: true })
    public weaponId: string = "";
    
    @property({ displayName: "武器名称", readonly: true })
    public weaponName: string = "";
    
    @property({ displayName: "武器等级", readonly: true })
    public weaponLevel: number = 1;
    
    @property({ displayName: "武器伤害", readonly: true })
    public weaponDamage: number = 0;
    
    @property({ displayName: "射速", readonly: true })
    public fireRate: number = 0;
    
    @property({ displayName: "射程", readonly: true })
    public range: number = 0;
    
    @property({ displayName: "是否激活", readonly: true })
    public activeStatus: boolean = false;
    
    @property({ displayName: "总伤害", readonly: true })
    public totalDamage: number = 0;
    
    @property({ displayName: "击杀数", readonly: true })
    public killCount: number = 0;
    
    @property({ displayName: "剩余冷却时间(秒)", readonly: true })
    public remainingCooldown: number = 0;
    
    // 武器配置数据
    private _weaponConfig: WeaponConfig | null = null;
    
    // 武器等级（用于升级系统）
    private _weaponLevel: number = 1;
    
    // 武器是否已激活（用于战斗状态管理）
    private _isActive: boolean = false;
    
    // 武器最后开火时间（用于冷却计算）
    private _lastFireTime: number = 0;
    
    // 武器当前弹药数（如果适用）
    private _currentAmmo: number = -1; // -1表示无限弹药
    
    // 武器累计伤害统计
    private _totalDamageDealt: number = 0;
    
    // 武器击杀数统计
    private _killCount: number = 0;
    
    /**
     * 设置武器配置
     * @param config 武器配置数据
     */
    public setWeaponConfig(config: WeaponConfig): void {
        this._weaponConfig = config;
        this._weaponLevel = 1;
        this._isActive = true;
        this._lastFireTime = 0;
        this._totalDamageDealt = 0;
        this._killCount = 0;
        
        // 更新编辑器面板可见属性
        this.weaponId = config.id;
        this.weaponName = config.name;
        this.weaponLevel = this._weaponLevel;
        this.weaponDamage = this.getDamage();
        this.fireRate = config.stats.fireRate;
        this.range = config.stats.range;
        this.activeStatus = this._isActive;
        this.totalDamage = this._totalDamageDealt;
        this.killCount = this._killCount;
        this.remainingCooldown = 0;
        
        // 如果武器配置中有弹药限制，设置初始弹药数
        if (config.bulletConfig && config.bulletConfig.count) {
            // 这里可以根据具体需求设置弹药数，目前设为无限
            this._currentAmmo = -1;
        }
        
        // 武器配置已设置
    }
    
    /**
     * 获取武器配置
     * @returns 武器配置数据
     */
    public getWeaponConfig(): WeaponConfig | null {
        return this._weaponConfig;
    }
    
    /**
     * 获取武器ID
     * @returns 武器ID
     */
    public getWeaponId(): string | null {
        return this._weaponConfig ? this._weaponConfig.id : null;
    }
    
    /**
     * 获取武器名称
     * @returns 武器名称
     */
    public getWeaponName(): string | null {
        return this._weaponConfig ? this._weaponConfig.name : null;
    }
    
    /**
     * 获取武器类型
     * @returns 武器类型
     */
    public getWeaponType(): string | null {
        return this._weaponConfig ? this._weaponConfig.type : null;
    }
    
    /**
     * 获取武器稀有度
     * @returns 武器稀有度
     */
    public getWeaponRarity(): string | null {
        return this._weaponConfig ? (this._weaponConfig.rarity || 'common') : null;
    }
    
    /**
     * 设置武器等级
     * @param level 武器等级
     */
    public setWeaponLevel(level: number): void {
        if (level < 1) {
            console.warn(`[WeaponInfo] 武器等级不能小于1，当前设置: ${level}`);
            return;
        }
        
        const maxLevel = this._weaponConfig?.upgradeConfig?.maxLevel || 10;
        if (level > maxLevel) {
            console.warn(`[WeaponInfo] 武器等级不能超过最大等级 ${maxLevel}，当前设置: ${level}`);
            return;
        }
        
        this._weaponLevel = level;
        
        // 更新编辑器面板可见属性
        this.weaponLevel = this._weaponLevel;
        this.weaponDamage = this.getDamage();
        
        // 武器等级已设置
    }
    
    /**
     * 获取武器等级
     * @returns 武器等级
     */
    public getWeaponLevel(): number {
        return this._weaponLevel;
    }
    
    /**
     * 获取武器最大等级
     * @returns 武器最大等级
     */
    public getMaxWeaponLevel(): number {
        return this._weaponConfig?.upgradeConfig?.maxLevel || 10;
    }
    
    /**
     * 设置武器激活状态
     * @param active 是否激活
     */
    public setActive(active: boolean): void {
        this._isActive = active;
        
        // 更新编辑器面板可见属性
        this.activeStatus = this._isActive;
        
        // 武器激活状态已设置
    }
    
    /**
     * 获取武器激活状态
     * @returns 是否激活
     */
    public isActive(): boolean {
        return this._isActive;
    }
    
    /**
     * 检查武器是否可以开火（基于冷却时间）
     * @returns 是否可以开火
     */
    public canFire(): boolean {
        if (!this._isActive || !this._weaponConfig) {
            this.remainingCooldown = 0;
            return false;
        }
        
        const currentTime = Date.now() / 1000; // 转换为秒
        const fireRate = this._weaponConfig.stats.fireRate || 1.0;
        const cooldown = 1.0 / fireRate; // 计算冷却时间
        const timeSinceLastFire = currentTime - this._lastFireTime;
        
        // 更新剩余冷却时间
        this.remainingCooldown = Math.max(0, cooldown - timeSinceLastFire);
        
        return timeSinceLastFire >= cooldown;
    }
    
    /**
     * 记录开火时间
     */
    public recordFireTime(): void {
        this._lastFireTime = Date.now() / 1000;
        
        // 开火后立即设置冷却时间
        if (this._weaponConfig) {
            const fireRate = this._weaponConfig.stats.fireRate || 1.0;
            this.remainingCooldown = 1.0 / fireRate;
        }
    }
    
    /**
     * 获取武器伤害值（考虑等级加成）
     * @returns 武器伤害值
     */
    public getDamage(): number {
        if (!this._weaponConfig) {
            return 0;
        }
        
        if (this._weaponLevel === 0) {
            return 0; // 未解锁武器伤害为0
        }
        
        // 优先从武器配置的upgradeConfig中获取伤害值
        if (this._weaponConfig.upgradeConfig && this._weaponConfig.upgradeConfig.levels) {
            const levelConfig = this._weaponConfig.upgradeConfig.levels[this._weaponLevel.toString()];
            if (levelConfig && typeof levelConfig.damage === 'number') {
                return levelConfig.damage;
            }
        }
        
        // 如果upgradeConfig中没有伤害值，使用基础伤害 + 等级加成作为后备
        const baseDamage = this._weaponConfig.stats.damage || 0;
        return baseDamage + (this._weaponLevel - 1);
    }
    
    /**
     * 获取武器射程
     * @returns 武器射程
     */
    public getRange(): number {
        return this._weaponConfig?.stats.range || 0;
    }
    
    /**
     * 获取武器射速
     * @returns 武器射速
     */
    public getFireRate(): number {
        return this._weaponConfig?.stats.fireRate || 1.0;
    }
    
    /**
     * 获取子弹速度
     * @returns 子弹速度
     */
    public getBulletSpeed(): number {
        return this._weaponConfig?.stats.bulletSpeed || 100;
    }
    
    /**
     * 获取武器精度
     * @returns 武器精度
     */
    public getAccuracy(): number {
        return this._weaponConfig?.stats.accuracy || 1.0;
    }
    
    /**
     * 获取当前剩余冷却时间
     * @returns 剩余冷却时间（秒）
     */
    public getRemainingCooldown(): number {
        if (!this._isActive || !this._weaponConfig) {
            return 0;
        }
        
        const currentTime = Date.now() / 1000;
        const fireRate = this._weaponConfig.stats.fireRate || 1.0;
        const cooldown = 1.0 / fireRate;
        const timeSinceLastFire = currentTime - this._lastFireTime;
        
        const remaining = Math.max(0, cooldown - timeSinceLastFire);
        this.remainingCooldown = remaining; // 同时更新编辑器属性
        
        return remaining;
    }
    
    /**
     * 添加伤害统计
     * @param damage 造成的伤害
     */
    public addDamageDealt(damage: number): void {
        this._totalDamageDealt += damage;
        
        // 更新编辑器面板可见属性
        this.totalDamage = this._totalDamageDealt;
        
        // 累计伤害已更新
    }
    
    /**
     * 获取总伤害统计
     * @returns 总伤害
     */
    public getTotalDamageDealt(): number {
        return this._totalDamageDealt;
    }
    
    /**
     * 增加击杀数
     */
    public addKill(): void {
        this._killCount++;
        
        // 更新编辑器面板可见属性
        this.killCount = this._killCount;
        
        // 击杀数已更新
    }
    
    /**
     * 获取击杀数
     * @returns 击杀数
     */
    public getKillCount(): number {
        return this._killCount;
    }
    
    /**
     * 重置统计数据
     */
    public resetStats(): void {
        this._totalDamageDealt = 0;
        this._killCount = 0;
        this._lastFireTime = 0;
        
        // 更新编辑器面板可见属性
        this.totalDamage = this._totalDamageDealt;
        this.killCount = this._killCount;
        this.remainingCooldown = 0;
        
        // 武器统计数据已重置
    }
    
    /**
     * 获取武器升级所需费用
     * @param targetLevel 目标等级
     * @returns 升级费用，如果无法升级返回-1
     */
    public getUpgradeCost(targetLevel?: number): number {
        if (!this._weaponConfig || !this._weaponConfig.upgradeConfig) {
            return -1;
        }
        
        const level = targetLevel || (this._weaponLevel + 1);
        const levelConfig = this._weaponConfig.upgradeConfig.levels?.[level.toString()];
        
        return levelConfig?.cost || -1;
    }
    
    /**
     * 检查是否可以升级
     * @returns 是否可以升级
     */
    public canUpgrade(): boolean {
        if (!this._weaponConfig || !this._weaponConfig.upgradeConfig) {
            return false;
        }
        
        const maxLevel = this._weaponConfig.upgradeConfig.maxLevel || 10;
        return this._weaponLevel < maxLevel;
    }
    
    /**
     * 升级武器
     * @returns 是否升级成功
     */
    public upgrade(): boolean {
        if (!this.canUpgrade()) {
            return false;
        }
        
        this._weaponLevel++;
        
        // 更新编辑器面板可见属性
        this.weaponLevel = this._weaponLevel;
        this.weaponDamage = this.getDamage();
        
        // 武器升级完成
        return true;
    }
    
    /**
     * 更新所有编辑器面板可见属性
     * 用于确保编辑器中显示的信息与内部状态同步
     */
    private updateEditorProperties(): void {
        if (this._weaponConfig) {
            this.weaponId = this._weaponConfig.id;
            this.weaponName = this._weaponConfig.name;
            this.fireRate = this._weaponConfig.stats.fireRate;
            this.range = this._weaponConfig.stats.range;
        }
        
        this.weaponLevel = this._weaponLevel;
        this.weaponDamage = this.getDamage();
        this.activeStatus = this._isActive;
        this.totalDamage = this._totalDamageDealt;
        this.killCount = this._killCount;
        
        // 更新剩余冷却时间
        if (this._weaponConfig && this._isActive) {
            const currentTime = Date.now() / 1000;
            const fireRate = this._weaponConfig.stats.fireRate || 1.0;
            const cooldown = 1.0 / fireRate;
            const timeSinceLastFire = currentTime - this._lastFireTime;
            this.remainingCooldown = Math.max(0, cooldown - timeSinceLastFire);
        } else {
            this.remainingCooldown = 0;
        }
    }
    
    /**
     * 获取武器信息摘要
     * @returns 武器信息字符串
     */
    public getWeaponSummary(): string {
        if (!this._weaponConfig) {
            return '无武器配置';
        }
        
        return `${this._weaponConfig.name} (Lv.${this._weaponLevel}) - 伤害:${this.getDamage()} 射速:${this.getFireRate()} 射程:${this.getRange()}`;
    }
    
    /**
     * 组件销毁时清理
     */
    onDestroy(): void {
        this._weaponConfig = null;
    }
}