/**
 * HealthScoreModal Component
 * Displays detailed financial health analysis with premium glassmorphism design
 */

import React, { useEffect, useState } from 'react';
import { Icon } from '@iconify/react';
import { formatCurrency } from '../../../utils/format';
import { getFinancialAdvice } from '../../../services/aiService';
import './HealthScoreModal.css';

interface HealthScoreModalProps {
    isOpen: boolean;
    onClose: () => void;
    score: number;
    totalAssets: number;
    totalLiabilities: number;
    todaySpend: number;
    yesterdaySpend: number;
    breakdown: {
        solvency: number;
        budget: number;
        habit: number;
        activity: number;
    };
    streakDays: number;
    metrics: {
        debtRatio: number;
        survivalMonths: number;
        budgetHealth: number;
    };
    tips: string[];
}

export const HealthScoreModal: React.FC<HealthScoreModalProps> = ({
    isOpen,
    onClose,
    score,
    totalAssets,
    totalLiabilities,
    // todaySpend, // Unused
    // yesterdaySpend, // Unused
    breakdown,
    streakDays,
    metrics,
    tips
}) => {
    const [showRules, setShowRules] = useState(false);
    const [animate, setAnimate] = useState(false);
    const [aiAdvice, setAiAdvice] = useState<string>('');
    const [loadingAdvice, setLoadingAdvice] = useState(false);

    // --- Logic & Calculations ---

    const debtRatio = totalAssets > 0 ? (totalLiabilities / totalAssets) * 100 : 0;
    // const spendDiff = todaySpend - yesterdaySpend; // Unused now

    useEffect(() => {
        let isMounted = true;
        if (isOpen) {
            setTimeout(() => setAnimate(true), 50);

            // Fetch AI Advice if not already fetched
            if (!aiAdvice && !loadingAdvice) { // Only fetch if not already fetched or loading
                setLoadingAdvice(true);
                getFinancialAdvice({
                    score,
                    totalAssets,
                    totalLiabilities,
                    metrics,
                    tips
                })
                    .then(advice => {
                        if (isMounted) setAiAdvice(advice);
                    })
                    .catch(err => {
                        console.error("Failed to load AI advice", err);
                    })
                    .finally(() => {
                        if (isMounted) setLoadingAdvice(false);
                    });
            }
        } else {
            setAnimate(false);
            setShowRules(false); // Reset view on close
        }
        return () => { isMounted = false; };
    }, [isOpen, score, totalAssets, totalLiabilities, metrics, tips]);


    if (!isOpen) return null;

    // Status Levels
    const getLevel = (s: number) => {
        if (s >= 95) return { label: 'SSS', title: '财务自由', color: '#10b981', icon: 'solar:crown-star-bold-duotone', desc: '完美无瑕的资产结构' };
        if (s >= 90) return { label: 'S', title: '卓越', color: '#34d399', icon: 'solar:cup-star-bold-duotone', desc: '财务状况极佳' };
        if (s >= 80) return { label: 'A', title: '优秀', color: '#3b82f6', icon: 'solar:medal-star-bold-duotone', desc: '资产配置健康' };
        if (s >= 70) return { label: 'B', title: '良好', color: '#6366f1', icon: 'solar:check-circle-bold-duotone', desc: '继续保持记账习惯' };
        if (s >= 60) return { label: 'C', title: '及格', color: '#f59e0b', icon: 'solar:info-circle-bold-duotone', desc: '需注意控制负债' };
        return { label: 'D', title: '危险', color: '#ef4444', icon: 'solar:danger-circle-bold-duotone', desc: '建议立即调整开支' };
    };

    const level = getLevel(score);



    // --- Render Helpers ---

    return (
        <div className="health-modal-overlay" onClick={onClose}>
            <div
                className={`health-modal-content ${animate ? 'animate-in' : ''}`}
                onClick={(e) => e.stopPropagation()}
            >
                {/* Header Controls */}
                <div className="health-modal-controls">
                    <button
                        className="health-icon-btn"
                        onClick={() => setShowRules(!showRules)}
                        title={showRules ? "返回评分" : "查看规则"}
                    >
                        <Icon icon={showRules ? "solar:arrow-left-bold-duotone" : "solar:question-circle-bold-duotone"} width="20" />
                    </button>
                    <button className="health-icon-btn" onClick={onClose}>
                        <Icon icon="solar:close-circle-bold-duotone" width="20" />
                    </button>
                </div>

                <div className="health-scroll-container">
                    {showRules ? (
                        // --- Rules View ---
                        <div className="health-rules-panel">
                            <h3 style={{ fontSize: '1.25rem', fontWeight: 700, margin: '0 0 1.5rem', display: 'flex', alignItems: 'center', gap: '8px' }}>
                                <Icon icon="solar:ruler-pen-bold-duotone" className="text-primary" />
                                评分细则
                            </h3>

                            <div className="rule-item">
                                <div className="rule-score rule-score--blue">{breakdown.solvency}/40</div>
                                <div className="rule-desc-group">
                                    <h4>财务结构 (40分)</h4>
                                    <p>由“负债率”与“应急流动性”共同决定。不仅关注负债水平，更看重现金流能否支撑至少3-6个月的生活开支。<br />这是抵御风险的基石。</p>
                                </div>
                            </div>

                            <div className="rule-item">
                                <div className="rule-score rule-score--green">{breakdown.budget}/30</div>
                                <div className="rule-desc-group">
                                    <h4>收支控制 (30分)</h4>
                                    <p>考察预算执行率与时间进度的关系。月中花费50%是健康的，月初花费50%则会扣分。<br />{breakdown.budget === 30 ? '当前预算控制极佳。' : '需注意平滑消费曲线。'}</p>
                                </div>
                            </div>

                            <div className="rule-item">
                                <div className="rule-score rule-score--orange">{breakdown.habit}/20</div>
                                <div className="rule-desc-group">
                                    <h4>记账习惯 (20分)</h4>
                                    <p>连续记账天数(Streak)奖励。坚持越久得分越高。<br />当前连续: {streakDays} 天</p>
                                </div>
                            </div>

                            <div className="rule-item">
                                <div className="rule-score rule-score--purple">{breakdown.activity}/10</div>
                                <div className="rule-desc-group">
                                    <h4>活跃度 (10分)</h4>
                                    <p>近48小时内是否有记账行为。保持关注有助于及时发现财务风险。</p>
                                </div>
                            </div>
                        </div>
                    ) : (
                        // --- Score View ---
                        <>
                            <div className="health-score-section">
                                <div className="health-score-ring-container">
                                    <svg className="health-score-ring-svg" viewBox="0 0 100 100">
                                        <defs>
                                            <linearGradient id="scoreGradient" x1="0%" y1="0%" x2="100%" y2="0%">
                                                <stop offset="0%" stopColor="#4ade80" />
                                                <stop offset="100%" stopColor="#22c55e" />
                                            </linearGradient>
                                        </defs>
                                        {/* Background Ring */}
                                        <circle
                                            cx="50" cy="50" r="45"
                                            fill="none"
                                            stroke="rgba(255,255,255,0.1)"
                                            strokeWidth="8"
                                        />
                                        {/* Progress Ring */}
                                        <circle
                                            cx="50" cy="50" r="45"
                                            fill="none"
                                            stroke={level.color} /* Use level color or gradient */
                                            strokeWidth="8"
                                            strokeLinecap="round"
                                            strokeDasharray={`${283 * (score / 100)} 283`}
                                            className="health-ring-progress"
                                        />
                                    </svg>
                                    <div className="health-score-content">
                                        <span className="health-score-number">{score}</span>
                                        <span className="health-score-label">健康分</span>
                                    </div>
                                </div>

                                <div className="health-level-badge" style={{ borderColor: `${level.color}40`, background: `${level.color}15` }}>
                                    <Icon icon={level.icon} width="20" color={level.color} />
                                    <span style={{ color: level.color }}>{level.title} · {level.desc}</span>
                                </div>
                            </div>

                            <div className="health-metrics-grid">
                                {/* Debt Card */}
                                <div className="health-metric-card">
                                    <div className="metric-icon-wrapper" style={{ background: 'rgba(239, 68, 68, 0.15)' }}>
                                        <Icon icon="solar:card-2-bold-duotone" width="20" color="#ef4444" />
                                    </div>
                                    <span className="metric-title">负债率</span>
                                    <div className="metric-value-group">
                                        <span className="metric-number">{debtRatio.toFixed(1)}%</span>
                                        <span className="metric-tag" style={{
                                            backgroundColor: debtRatio > 30 ? 'rgba(239, 68, 68, 0.2)' : 'rgba(16, 185, 129, 0.2)',
                                            color: debtRatio > 30 ? '#ef4444' : '#10b981'
                                        }}>
                                            {debtRatio > 30 ? '一般' : '优秀'}
                                        </span>
                                    </div>
                                    <span className="metric-subtitle">
                                        {debtRatio === 0 ? '无负债一身轻' : `负债 ${formatCurrency(totalLiabilities)}`}
                                    </span>
                                </div>

                                {/* Survival Time Card (Replacing Spend) */}
                                <div className="health-metric-card">
                                    <div className="metric-icon-wrapper" style={{ background: 'rgba(16, 185, 129, 0.15)' }}>
                                        <Icon icon="solar:shield-check-bold-duotone" width="20" color="#10b981" />
                                    </div>
                                    <span className="metric-title">生存期</span>
                                    <div className="metric-value-group">
                                        <span className="metric-number">
                                            {metrics?.survivalMonths > 99 ? '>99' : (metrics?.survivalMonths || 0).toFixed(1)}
                                        </span>
                                        <span style={{ fontSize: '1rem', fontWeight: 600, marginLeft: '2px' }}>个月</span>
                                    </div>
                                    <span className="metric-subtitle" style={{ color: (metrics?.survivalMonths || 0) < 3 ? '#ef4444' : '#10b981' }}>
                                        {(metrics?.survivalMonths || 0) >= 6 ? '资金充裕' : (metrics?.survivalMonths || 0) >= 3 ? '健康' : '急需储备'}
                                    </span>
                                </div>
                            </div>

                            {/* Suggestion Box */}
                            <div className="health-suggestion-box">
                                <div className="suggestion-header">
                                    <Icon icon="solar:lightbulb-bolt-bold-duotone" width="20" />
                                    <span>AI 智能建议</span>
                                </div>
                                <div className="suggestion-content">
                                    {/* Static Tips */}
                                    {tips && tips.length > 0 && tips.map((tip, i) => (
                                        <div key={i} style={{ marginBottom: '8px', fontSize: '0.9rem', color: 'rgba(255,255,255,0.9)' }}>{tip}</div>
                                    ))}

                                    {/* AI Dynamic Advice */}
                                    {loadingAdvice ? (
                                        <div style={{ marginTop: '12px', fontSize: '0.85rem', opacity: 0.7, fontStyle: 'italic', display: 'flex', alignItems: 'center', gap: '6px' }}>
                                            <span className="loading-dots">CFO 正在分析您的财务报表...</span>
                                        </div>
                                    ) : aiAdvice && (
                                        <div style={{ marginTop: '12px', paddingTop: '12px', borderTop: '1px solid rgba(255,255,255,0.1)', fontSize: '0.9rem', lineHeight: '1.6', color: '#60a5fa' }}>
                                            <Icon icon="solar:chat-round-line-duotone" style={{ marginRight: '6px', verticalAlign: 'text-bottom' }} />
                                            {aiAdvice}
                                        </div>
                                    )}
                                </div>
                            </div>
                        </>
                    )}
                </div>

                <div className="health-actions-bottom">
                    <button className="health-confirm-btn" onClick={onClose}>
                        {showRules ? '返回' : '明白了'}
                    </button>
                </div>
            </div>
        </div>
    );
};