// src/hooks/usePermissionGuide.js
/**
 * 通知权限引导管理 Hook
 *
 * 功能：
 * - 管理多个引导场景的显示状态
 * - 使用 localStorage 持久化记录
 * - 支持定期提醒策略
 */

import { useState, useCallback, useEffect } from 'react';
import { logger } from '../utils/logger';

// 引导场景类型
export const GUIDE_TYPES = {
    WELCOME: 'welcome',           // 首次登录欢迎引导
    COMMUNITY: 'community',       // 社区功能引导
    FIRST_FOLLOW: 'first_follow', // 首次关注事件引导
    PERIODIC: 'periodic',         // 定期提醒
};

// localStorage 键名
const STORAGE_KEYS = {
    SHOWN_GUIDES: 'notification_guides_shown',
    LAST_PERIODIC: 'notification_last_periodic_prompt',
    TOTAL_PROMPTS: 'notification_total_prompts',
};

// 定期提醒间隔（毫秒）
const PERIODIC_INTERVAL = 3 * 24 * 60 * 60 * 1000; // 3 天
const MAX_PERIODIC_PROMPTS = 3; // 最多提醒 3 次

/**
 * 权限引导管理 Hook
 */
export function usePermissionGuide() {
    const [shownGuides, setShownGuides] = useState(() => {
        try {
            const stored = localStorage.getItem(STORAGE_KEYS.SHOWN_GUIDES);
            return stored ? JSON.parse(stored) : [];
        } catch (error) {
            logger.error('usePermissionGuide', 'Failed to load shown guides', error);
            return [];
        }
    });

    /**
     * 检查是否应该显示某个引导
     * @param {string} guideType - 引导类型
     * @returns {boolean}
     */
    const shouldShowGuide = useCallback((guideType) => {
        // 已经显示过的引导不再显示
        if (shownGuides.includes(guideType)) {
            return false;
        }

        // 特殊逻辑：定期提醒
        if (guideType === GUIDE_TYPES.PERIODIC) {
            try {
                const lastPrompt = localStorage.getItem(STORAGE_KEYS.LAST_PERIODIC);
                const totalPrompts = parseInt(localStorage.getItem(STORAGE_KEYS.TOTAL_PROMPTS) || '0', 10);

                // 超过最大提醒次数
                if (totalPrompts >= MAX_PERIODIC_PROMPTS) {
                    logger.debug('usePermissionGuide', 'Periodic prompts limit reached', { totalPrompts });
                    return false;
                }

                // 未到提醒间隔
                if (lastPrompt) {
                    const elapsed = Date.now() - parseInt(lastPrompt, 10);
                    if (elapsed < PERIODIC_INTERVAL) {
                        logger.debug('usePermissionGuide', 'Periodic interval not reached', {
                            elapsed: Math.round(elapsed / 1000 / 60 / 60), // 小时
                            required: Math.round(PERIODIC_INTERVAL / 1000 / 60 / 60)
                        });
                        return false;
                    }
                }

                return true;
            } catch (error) {
                logger.error('usePermissionGuide', 'Failed to check periodic guide', error);
                return false;
            }
        }

        return true;
    }, [shownGuides]);

    /**
     * 标记引导已显示
     * @param {string} guideType - 引导类型
     */
    const markGuideAsShown = useCallback((guideType) => {
        try {
            // 更新状态
            setShownGuides(prev => {
                if (prev.includes(guideType)) {
                    return prev;
                }
                const updated = [...prev, guideType];
                // 持久化
                localStorage.setItem(STORAGE_KEYS.SHOWN_GUIDES, JSON.stringify(updated));
                logger.info('usePermissionGuide', 'Guide marked as shown', { guideType });
                return updated;
            });

            // 特殊处理：定期提醒
            if (guideType === GUIDE_TYPES.PERIODIC) {
                localStorage.setItem(STORAGE_KEYS.LAST_PERIODIC, String(Date.now()));

                const totalPrompts = parseInt(localStorage.getItem(STORAGE_KEYS.TOTAL_PROMPTS) || '0', 10);
                localStorage.setItem(STORAGE_KEYS.TOTAL_PROMPTS, String(totalPrompts + 1));

                logger.info('usePermissionGuide', 'Periodic prompt recorded', {
                    totalPrompts: totalPrompts + 1
                });
            }
        } catch (error) {
            logger.error('usePermissionGuide', 'Failed to mark guide as shown', error);
        }
    }, []);

    /**
     * 重置所有引导（用于测试或用户主动重置）
     */
    const resetAllGuides = useCallback(() => {
        try {
            localStorage.removeItem(STORAGE_KEYS.SHOWN_GUIDES);
            localStorage.removeItem(STORAGE_KEYS.LAST_PERIODIC);
            localStorage.removeItem(STORAGE_KEYS.TOTAL_PROMPTS);
            setShownGuides([]);
            logger.info('usePermissionGuide', 'All guides reset');
        } catch (error) {
            logger.error('usePermissionGuide', 'Failed to reset guides', error);
        }
    }, []);

    /**
     * 获取定期提醒的统计信息（用于调试）
     */
    const getPeriodicStats = useCallback(() => {
        try {
            const lastPrompt = localStorage.getItem(STORAGE_KEYS.LAST_PERIODIC);
            const totalPrompts = parseInt(localStorage.getItem(STORAGE_KEYS.TOTAL_PROMPTS) || '0', 10);

            return {
                lastPromptTime: lastPrompt ? new Date(parseInt(lastPrompt, 10)) : null,
                totalPrompts,
                remainingPrompts: MAX_PERIODIC_PROMPTS - totalPrompts,
                nextPromptTime: lastPrompt
                    ? new Date(parseInt(lastPrompt, 10) + PERIODIC_INTERVAL)
                    : new Date(),
            };
        } catch (error) {
            logger.error('usePermissionGuide', 'Failed to get periodic stats', error);
            return null;
        }
    }, []);

    return {
        shouldShowGuide,
        markGuideAsShown,
        resetAllGuides,
        getPeriodicStats,
        shownGuides,
    };
}