// Toast notification system
function showToast(message, type = "info") {
    const container = document.querySelector(".toast") || createToastContainer();
    const toast = document.createElement("div");
    toast.className = `toast-message toast-${type}`;
    toast.textContent = message;
    container.appendChild(toast);
    setTimeout(() => {
        toast.style.opacity = "0";
        toast.style.transform = "translateX(40px)";
        toast.style.transition = "all 0.3s ease";
        setTimeout(() => toast.remove(), 300);
    }, 5000);
}

function createToastContainer() {
    const el = document.createElement("div");
    el.className = "toast";
    document.body.appendChild(el);
    return el;
}

// Modal helpers
function openModal(id) {
    const modal = document.getElementById(id);
    if (modal) modal.classList.add("show");
}

function closeModal(id) {
    const modal = document.getElementById(id);
    if (modal) modal.classList.remove("show");
}

// Confirm dialog
function confirmAction(message, onConfirm) {
    const existing = document.getElementById("confirm-modal");
    if (existing) existing.remove();

    const modal = document.createElement("div");
    modal.id = "confirm-modal";
    modal.className = "modal";
    modal.innerHTML = `
        <div class="modal-content">
            <p class="mb-2">${message}</p>
            <div style="display:flex; gap:0.75rem; justify-content:flex-end;">
                <button class="btn btn-outline" id="confirm-cancel">Cancel</button>
                <button class="btn btn-danger" id="confirm-ok">Confirm</button>
            </div>
        </div>`;
    document.body.appendChild(modal);
    openModal("confirm-modal");
    document.getElementById("confirm-cancel").onclick = () => closeModal("confirm-modal");
    modal.addEventListener("click", (e) => {
        if (e.target === modal) closeModal("confirm-modal");
    });
}

function setupConfirmCallback(callback) {
    document.getElementById("confirm-ok")?.addEventListener("click", () => {
        closeModal("confirm-modal");
        callback();
    });
}

// Auto-refresh with HTMX
function startAutoRefresh(endpoint, target, interval) {
    const el = document.createElement("div");
    el.setAttribute("hx-get", endpoint);
    el.setAttribute("hx-target", `#${target}`);
    el.setAttribute("hx-swap", "innerHTML");
    el.setAttribute("hx-trigger", `every ${interval}s`);
    el.setAttribute("hx-swap-oob", "true");
    document.body.appendChild(el);
}

// Time formatting
function formatTime(seconds) {
    if (seconds < 60) return `${seconds}s`;
    if (seconds < 3600) return `${Math.floor(seconds / 60)}m ${seconds % 60}s`;
    if (seconds < 86400) return `${Math.floor(seconds / 3600)}h ${Math.floor((seconds % 3600) / 60)}m`;
    return `${Math.floor(seconds / 86400)}d ${Math.floor((seconds % 86400) / 3600)}h`;
}

// Bytes formatting
function formatBytes(bytes) {
    if (bytes === 0) return "0 B";
    const units = ["B", "KB", "MB", "GB", "TB"];
    const i = Math.floor(Math.log(bytes) / Math.log(1024));
    return `${(bytes / Math.pow(1024, i)).toFixed(i > 0 ? 1 : 0)} ${units[i]}`;
}

// Form helpers
function resetForm(formId) {
    const form = document.getElementById(formId);
    if (form) form.reset();
}

function fillForm(formId, data) {
    const form = document.getElementById(formId);
    if (!form) return;
    for (const [key, value] of Object.entries(data)) {
        const input = form.querySelector(`[name="${key}"]`);
        if (input) input.value = value;
    }
}

// HTMX event handlers
document.body.addEventListener("htmx:afterSwap", (evt) => {
    const toastHeader = evt.detail.xhr?.getResponseHeader("X-Toast");
    if (toastHeader) {
        const parts = toastHeader.split(":");
        const msg = parts.slice(1).join(":").trim();
        showToast(msg, parts[0]?.trim() || "info");
    }
});

document.body.addEventListener("htmx:responseError", (evt) => {
    const status = evt.detail.xhr?.status || 0;
    showToast(`Request failed (${status})`, "error");
});

document.body.addEventListener("htmx:beforeRequest", (evt) => {
    const target = evt.target;
    const btn = target.closest(".btn");
    if (btn) {
        btn.dataset.originalText = btn.textContent;
        btn.disabled = true;
        btn.textContent = "Loading...";
    }
});

document.body.addEventListener("htmx:afterRequest", (evt) => {
    const target = evt.target;
    const btn = target.closest(".btn");
    if (btn && btn.dataset.originalText !== undefined) {
        btn.disabled = false;
        btn.textContent = btn.dataset.originalText;
        delete btn.dataset.originalText;
    }
});

// Close on escape
document.addEventListener("keydown", (e) => {
    if (e.key === "Escape") {
        document.querySelectorAll(".modal.show").forEach((m) => m.classList.remove("show"));
    }
});