72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
function json(data, status = 200) {
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return new Response(JSON.stringify(data), {
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status,
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headers: { "content-type": "application/json; charset=UTF-8" },
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});
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}
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function toInt(v, d) {
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const n = Number(v);
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return Number.isFinite(n) && n > 0 ? Math.floor(n) : d;
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}
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export async function onRequestGet(context) {
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const db = context.env.DB;
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if (!db) {
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return json({ success: false, error: "缺少 D1 绑定 DB" }, 500);
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}
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try {
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const url = new URL(context.request.url);
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const page = toInt(url.searchParams.get("page"), 1);
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const limit = Math.min(100, toInt(url.searchParams.get("limit"), 10));
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const month = (url.searchParams.get("month") || "").trim();
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const day = (url.searchParams.get("day") || "").trim();
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const offset = (page - 1) * limit;
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const where = ["1=1"];
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const params = [];
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// 时间字段是 YYYY-MM-DD HH:MM:SS 文本，直接前缀过滤可走索引/减少转换成本
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if (month) {
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where.push("timestamp LIKE ?");
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params.push(`${month}%`);
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}
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if (day) {
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where.push("timestamp LIKE ?");
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params.push(`${day}%`);
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}
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const whereSql = where.join(" AND ");
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const dataSql = `
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SELECT *
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FROM backup_trades
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WHERE ${whereSql}
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ORDER BY timestamp DESC
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LIMIT ? OFFSET ?
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`;
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const countSql = `
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SELECT COUNT(*) AS cnt
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FROM backup_trades
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WHERE ${whereSql}
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`;
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const dataResult = await db.prepare(dataSql).bind(...params, limit, offset).all();
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const countResult = await db.prepare(countSql).bind(...params).first();
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const total = Number(countResult?.cnt || 0);
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const totalPages = total > 0 ? Math.ceil(total / limit) : 1;
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return json({
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success: true,
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data: dataResult.results || [],
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page,
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limit,
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total,
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total_pages: totalPages,
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});
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} catch (error) {
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return json({ success: false, error: String(error) }, 500);
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}
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}
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