const API_HISTORY = "http://app.wisdompulse.cn/api/v1/doc/fetch-os-upload-history";

const tableBody = document.getElementById("historyTableBody");
const pagination = document.getElementById("pagination");
const pageSizeSelect = document.getElementById("pageSizeSelect");

let currentPage = 1;
let total = 0;
let pageSize = parseInt(pageSizeSelect.value);

function loadUploadHistory(page = 1, size = 10) {
    const url = `${API_HISTORY}?page=${page}&size=${size}`;
    fetch(url)
        .then(res => res.json())
        .then(data => {
            renderTable(data.records || []);
            renderPagination(data.total || 0, page, size);
        })
        .catch(err => {
            console.error("加载上传记录失败:", err);
        });
}

function renderTable(records) {
    tableBody.innerHTML = "";
    if (!records.length) {
        const tr = document.createElement("tr");
        tr.innerHTML = `<td colspan="3">暂无记录</td>`;
        tableBody.appendChild(tr);
        return;
    }

    records.forEach(rec => {
        const tr = document.createElement("tr");
        tr.innerHTML = `
      <td><a href="${rec.url}" target="_blank">${rec.fileName}</a></td>
      <td>${rec.uploadTime}</td>
      <td>${rec.daysRemaining}</td>
    `;
        tableBody.appendChild(tr);
    });
}

function renderPagination(totalCount, current, size) {
    pagination.innerHTML = "";
    total = totalCount;
    const totalPages = Math.ceil(totalCount / size);
    if (totalPages <= 1) return;

    for (let i = 1; i <= totalPages; i++) {
        const btn = document.createElement("button");
        btn.textContent = i;
        if (i === current) btn.classList.add("active");
        btn.onclick = () => {
            currentPage = i;
            loadUploadHistory(currentPage, pageSize);
        };
        pagination.appendChild(btn);
    }
}

pageSizeSelect.addEventListener("change", () => {
    pageSize = parseInt(pageSizeSelect.value);
    currentPage = 1;
    loadUploadHistory(currentPage, pageSize);
});

window.addEventListener("DOMContentLoaded", () => {
    loadUploadHistory(currentPage, pageSize);
});