// 钓鱼事件后台管理页事件代理，替代 Blade 内联编辑和启停函数。

let adminFishingEventsControlsBound = false;
let fishingEventsCache = null;

/**
 * 读取后台 layout 注入的 CSRF token。
 *
 * @returns {string}
 */
function getCsrfToken() {
    return document.querySelector('meta[name="csrf-token"]')?.getAttribute("content") || "";
}

/**
 * 读取 Blade 注入的钓鱼事件快照。
 *
 * @returns {Record<string, Record<string, unknown>>}
 */
function getFishingEvents() {
    if (fishingEventsCache !== null) {
        return fishingEventsCache;
    }

    const dataNode = document.getElementById("admin-fishing-events-data");
    if (!dataNode?.textContent) {
        fishingEventsCache = {};
        return fishingEventsCache;
    }

    try {
        fishingEventsCache = JSON.parse(dataNode.textContent);
    } catch (error) {
        // JSON 被异常截断时保持页面可用，只是不再打开编辑弹窗。
        fishingEventsCache = {};
    }

    return fishingEventsCache;
}

/**
 * 设置表单字段值。
 *
 * @param {string} id 字段 ID
 * @param {unknown} value 字段值
 * @returns {void}
 */
function setInputValue(id, value) {
    const input = document.getElementById(id);
    if (input instanceof HTMLInputElement) {
        input.value = String(value ?? "");
    }
}

/**
 * 打开钓鱼事件编辑弹窗并填充表单。
 *
 * @param {string} eventId 事件 ID
 * @returns {void}
 */
function openFishingEditModal(eventId) {
    const eventData = getFishingEvents()[eventId];
    const form = document.getElementById("edit-form");
    const modal = document.getElementById("edit-modal");

    if (!eventData || !(form instanceof HTMLFormElement) || !modal) {
        return;
    }

    form.action = String(eventData.update_url || "");
    setInputValue("edit-emoji", eventData.emoji);
    setInputValue("edit-name", eventData.name);
    setInputValue("edit-message", eventData.message);
    setInputValue("edit-exp", eventData.exp);
    setInputValue("edit-jjb", eventData.jjb);
    setInputValue("edit-weight", eventData.weight);
    setInputValue("edit-sort", eventData.sort);

    const activeInput = document.getElementById("edit-is-active");
    if (activeInput instanceof HTMLInputElement) {
        activeInput.checked = Boolean(eventData.is_active);
    }

    modal.classList.remove("hidden");
}

/**
 * 关闭钓鱼事件编辑弹窗。
 *
 * @returns {void}
 */
function closeFishingEditModal() {
    document.getElementById("edit-modal")?.classList.add("hidden");
}

/**
 * 根据接口返回状态更新钓鱼事件行和缓存。
 *
 * @param {string} eventId 事件 ID
 * @param {boolean} active 是否启用
 * @returns {void}
 */
function updateFishingToggleState(eventId, active) {
    const button = document.querySelector(`[data-fishing-toggle-id="${CSS.escape(eventId)}"]`);
    const row = document.getElementById(`row-${eventId}`);

    if (button instanceof HTMLButtonElement) {
        button.textContent = active ? "启用" : "禁用";
        button.className = `px-2 py-1 rounded-full text-xs font-bold transition ${
            active
                ? "bg-emerald-100 text-emerald-700 hover:bg-emerald-200"
                : "bg-gray-100 text-gray-500 hover:bg-gray-200"
        }`;
    }

    row?.classList.toggle("opacity-50", !active);

    // 缓存状态要同步，否则后续打开编辑弹窗时会显示旧的启用状态。
    const eventData = getFishingEvents()[eventId];
    if (eventData) {
        eventData.is_active = active;
    }
}

/**
 * 切换钓鱼事件启用状态。
 *
 * @param {HTMLButtonElement} button 状态切换按钮
 * @returns {Promise<void>}
 */
async function toggleFishingEvent(button) {
    const eventId = button.getAttribute("data-fishing-toggle-id") || "";
    const eventData = getFishingEvents()[eventId];
    const toggleUrl = String(eventData?.toggle_url || "");

    if (!eventId || !toggleUrl || button.disabled) {
        return;
    }

    button.disabled = true;

    try {
        const response = await fetch(toggleUrl, {
            method: "POST",
            headers: {
                "X-CSRF-TOKEN": getCsrfToken(),
                "Accept": "application/json",
            },
        });
        const data = await response.json();

        if (data?.ok) {
            updateFishingToggleState(eventId, Boolean(data.is_active));
        }
    } finally {
        button.disabled = false;
    }
}

/**
 * 绑定钓鱼事件管理页操作按钮。
 *
 * @returns {void}
 */
export function bindAdminFishingEventsControls() {
    if (adminFishingEventsControlsBound || typeof document === "undefined") {
        return;
    }

    adminFishingEventsControlsBound = true;
    document.addEventListener("click", (event) => {
        if (!(event.target instanceof Element)) {
            return;
        }

        const editButton = event.target.closest("[data-fishing-edit-id]");
        if (editButton) {
            event.preventDefault();
            openFishingEditModal(editButton.getAttribute("data-fishing-edit-id") || "");
            return;
        }

        const closeButton = event.target.closest("[data-fishing-edit-close]");
        if (closeButton) {
            event.preventDefault();
            closeFishingEditModal();
            return;
        }

        const toggleButton = event.target.closest("[data-fishing-toggle-id]");
        if (toggleButton instanceof HTMLButtonElement) {
            event.preventDefault();
            void toggleFishingEvent(toggleButton);
        }
    });
}