// 聊天室偏好与每日状态工具，承接从 Blade 内联脚本迁移出的纯数据规整逻辑。

export const BLOCKABLE_SYSTEM_SENDERS = ["钓鱼播报", "星海小博士", "百家乐", "跑马", "神秘箱子"];
export const BLOCKED_SYSTEM_SENDERS_STORAGE_KEY = "chat_blocked_system_senders";
export const CHAT_SOUND_MUTED_STORAGE_KEY = "chat_sound_muted";

/**
 * 规整聊天室偏好对象，过滤非法配置并补齐默认值。
 *
 * @param {Record<string, unknown>|null|undefined} raw
 * @param {string[]} blockableSystemSenders
 * @returns {{blocked_system_senders:string[],sound_muted:boolean}}
 */
export function normalizeChatPreferences(raw, blockableSystemSenders = BLOCKABLE_SYSTEM_SENDERS) {
    const blocked = Array.isArray(raw?.blocked_system_senders)
        ? raw.blocked_system_senders.filter((sender) => blockableSystemSenders.includes(sender))
        : [];

    return {
        blocked_system_senders: Array.from(new Set(blocked)),
        sound_muted: Boolean(raw?.sound_muted),
    };
}

/**
 * 解析并标准化状态到期时间。
 *
 * @param {string|null|undefined} expiresAt
 * @returns {Date|null}
 */
export function parseDailyStatusExpiry(expiresAt) {
    if (!expiresAt) {
        return null;
    }

    const parsed = new Date(expiresAt);

    return Number.isNaN(parsed.getTime()) ? null : parsed;
}

/**
 * 将状态对象规整为前端统一结构，并过滤掉已过期状态。
 *
 * @param {Record<string, unknown>|null|undefined} raw
 * @param {number} nowTimestamp
 * @returns {{key:string,label:string,icon:string,group:string,expires_at:string}|null}
 */
export function normalizeDailyStatus(raw, nowTimestamp = Date.now()) {
    if (!raw || typeof raw !== "object") {
        return null;
    }

    const key = String(raw.key ?? raw.daily_status_key ?? "");
    const label = String(raw.label ?? raw.daily_status_label ?? "");
    const icon = String(raw.icon ?? raw.daily_status_icon ?? "");
    const group = String(raw.group ?? raw.daily_status_group ?? "");
    const expiresAt = raw.expires_at ?? raw.daily_status_expires_at ?? null;
    const parsedExpiry = parseDailyStatusExpiry(expiresAt);

    if (!key || !label || !icon || !parsedExpiry) {
        return null;
    }

    if (parsedExpiry.getTime() <= nowTimestamp) {
        return null;
    }

    return {
        key,
        label,
        icon,
        group,
        expires_at: parsedExpiry.toISOString(),
    };
}