feat(lingxing): 领星订单拉取适配器

- LingxingAdapter：SalesOrderCapable + AggregatorCapable，按 platform_code 细化能力（eBay/SHEIN/Mirakl/自定义平台只有订单） - LingxingSigner：公共参数 ASCII 升序拼接 appSecret 前后包裹后 MD5 - LingxingTokenClient + TokenManager：约 2h 令牌，提前 10 分钟续期 - 时间窗 ≤31 天截断、length ≤500、offset 游标、10 req/s 令牌桶 - channelOrderId 优先平台单号，platform_order_names 排序取首，缺失回落领星 order_id - LingxingAdapterFactory：与直连适配器同一套注册机制契约测试 16 个，全部基于录制夹具，无网络/数据库/Spring。 Co-Authored-By: Claude <noreply@anthropic.com>
18 hours ago · b7e6df462a
13 changed files with 1303 additions and 0 deletions
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingAdapter.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingAdapter.java
@ -0,0 +1,262 @@
				@@ -0,0 +1,262 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.capability.AggregatorCapable;
+import apelet.common.ecommerce.capability.SalesOrderCapable;
+import apelet.common.ecommerce.error.ChannelException;
+import apelet.common.ecommerce.http.HttpRequest;
+import apelet.common.ecommerce.http.HttpResponse;
+import apelet.common.ecommerce.http.HttpTransport;
+import apelet.common.ecommerce.http.JacksonJsonCodec;
+import apelet.common.ecommerce.http.Responses;
+import apelet.common.ecommerce.http.TokenManager;
+import apelet.common.ecommerce.lingxing.dto.LingxingOrderDto;
+import apelet.common.ecommerce.model.Capability;
+import apelet.common.ecommerce.model.ChannelAccount;
+import apelet.common.ecommerce.model.ChannelProvider;
+import apelet.common.ecommerce.model.Page;
+import apelet.common.ecommerce.model.Platform;
+import apelet.common.ecommerce.model.SalesOrder;
+import apelet.common.ecommerce.model.SalesOrderQuery;
+import apelet.common.ecommerce.sdk.ChannelContext;
+import apelet.common.ecommerce.spi.AccessToken;
+import apelet.common.ecommerce.spi.ChannelSecret;
+import apelet.common.ecommerce.spi.LockProvider;
+import apelet.common.ecommerce.spi.SecretProvider;
+import apelet.common.ecommerce.spi.TokenStore;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.time.Clock;
+import java.time.Duration;
+import java.time.Instant;
+import java.time.ZoneId;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.EnumSet;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * 领星聚合适配器。
+ *
+ * <p>一个适配器服务多个子平台，子平台由 {@code ChannelAccount.platformCode} 决定，
+ * 能力按子平台细化（{@link #supports}）。首期只实现订单列表拉取。</p>
+ *
+ * <p>领星字段名与签名细节标注为「待核对」的地方集中在 {@code dto} 与
+ * {@link LingxingSigner}，联调时只改这两处。</p>
+ */
+public final class LingxingAdapter implements SalesOrderCapable, AggregatorCapable {
+
+    /** 领星订单列表令牌桶：10 req/s（文档 9.3 按接口配置）。 */
+    private static final int ORDERS_PER_SECOND = 10;
+
+    private final String baseUrl;
+    private final HttpTransport transport;
+    private final JacksonJsonCodec json;
+    private final SecretProvider secretProvider;
+    private final Clock clock;
+    private final LingxingOrderMapper mapper;
+    private final TokenManager tokenManager;
+    private final SimpleRateLimiter rateLimiter;
+
+    public LingxingAdapter(String baseUrl, HttpTransport transport, JacksonJsonCodec json,
+                           SecretProvider secretProvider, TokenStore tokenStore, LockProvider lockProvider,
+                           Clock clock) {
+        this.baseUrl = baseUrl;
+        this.transport = transport;
+        this.json = json;
+        this.secretProvider = secretProvider;
+        this.clock = clock;
+        this.mapper = new LingxingOrderMapper(json);
+        final LingxingTokenClient tokenClient = new LingxingTokenClient(transport, json, baseUrl);
+        // 领星 access_token 约 2h，提前 10 分钟续期
+        this.tokenManager = new TokenManager(tokenStore, lockProvider, clock, 600) {
+            @Override
+            protected AccessToken refresh(ChannelSecret secret, AccessToken previous) {
+                return tokenClient.fetch(secret.appKey(), secret.appSecret());
+            }
+        };
+        this.rateLimiter = new SimpleRateLimiter(ORDERS_PER_SECOND);
+    }
+
+    @Override
+    public String adapterId() {
+        return LingxingConstants.ADAPTER_ID;
+    }
+
+    @Override
+    public ChannelProvider provider() {
+        return ChannelProvider.LINGXING;
+    }
+
+    @Override
+    public Set<Platform> platforms() {
+        return EnumSet.of(Platform.AMAZON_SC, Platform.AMAZON_VC, Platform.WALMART_SC, Platform.TIKTOK,
+                Platform.TEMU, Platform.EBAY, Platform.SHEIN, Platform.MIRAKL, Platform.CUSTOM);
+    }
+
+    @Override
+    public EnumSet<Capability> capabilities() {
+        return EnumSet.of(Capability.SALES_ORDER);
+    }
+
+    /**
+     * 聚合器按子平台细化能力。
+     *
+     * <p>eBay / SHEIN / Mirakl / 自定义平台在领星侧只有订单，未见账单与售后接口，
+     * 因此只声明 SALES_ORDER，缺口由能力报告显式暴露，不假装支持。</p>
+     */
+    @Override
+    public boolean supports(ChannelAccount account, Capability capability) {
+        if (!capabilities().contains(capability)) {
+            return false;
+        }
+        Platform p = LingxingConstants.toPlatform(account.platformCode());
+        if (p == Platform.EBAY || p == Platform.SHEIN || p == Platform.MIRAKL || p == Platform.CUSTOM) {
+            return capability == Capability.SALES_ORDER;
+        }
+        return true;
+    }
+
+    @Override
+    public List<SubChannel> listSubChannels(ChannelAccount account) {
+        // 首期一个账户对应一个子渠道；店铺列表接口待接入
+        SubChannel ch = new SubChannel(
+                account.platformCode() == null ? 0 : account.platformCode(),
+                account.externalStoreId(),
+                LingxingConstants.toPlatform(account.platformCode()),
+                account.externalStoreId());
+        return Collections.singletonList(ch);
+    }
+
+    @Override
+    public Page<SalesOrder> pull(ChannelContext ctx, SalesOrderQuery query) {
+        requireCapability();
+        ChannelAccount account = ctx.account();
+        ZoneId zone = ZoneId.of(account.marketplaceZone());
+
+        Instant from = query.updatedAfter();
+        Instant to = query.updatedBefore() != null ? query.updatedBefore() : Instant.now(clock);
+        // 领星时间窗 ≤31 天：超出时截断到最近 31 天，由 SyncEngine 分段推进
+        if (Duration.between(from, to).toDays() > LingxingConstants.MAX_QUERY_DAYS) {
+            from = to.minus(Duration.ofDays(LingxingConstants.MAX_QUERY_DAYS));
+        }
+
+        int length = Math.min(query.pageSize() <= 0 ? 100 : query.pageSize(), LingxingConstants.MAX_PAGE_SIZE);
+        int offset = query.cursor() == null ? 0 : Integer.parseInt(query.cursor());
+
+        rateLimiter.acquire();
+        String body = buildOrderListBody(account, from, to, offset, length);
+        HttpRequest req = signedPost(ctx, LingxingConstants.PATH_ORDER_LIST, body, "salesOrders.pull");
+
+        HttpResponse resp = transport.execute(req);
+        Responses.throwIfNotSuccess(resp, "salesOrders.pull");
+
+        List<LingxingOrderDto> dtos = mapper.parseList(resp.body());
+        int total = mapper.parseTotal(resp.body());
+
+        List<SalesOrder> orders = new ArrayList<SalesOrder>(dtos.size());
+        for (LingxingOrderDto dto : dtos) {
+            orders.add(mapper.toSalesOrder(dto, account.omsStoreId(), zone));
+        }
+
+        int nextOffset = offset + dtos.size();
+        String nextCursor = (dtos.isEmpty() || nextOffset >= total) ? null : String.valueOf(nextOffset);
+        return Page.of(orders, nextCursor);
+    }
+
+    /** 单订单详情接口待核对（领星以列表接口为主），先显式拒绝而不是返回 null。 */
+    @Override
+    public SalesOrder get(ChannelContext ctx, String channelOrderId) {
+        throw ChannelException.builder()
+                .message("lingxing order detail is not implemented yet")
+                .operation("salesOrders.get")
+                .provider(provider().name())
+                .omsStoreId(ctx.omsStoreId())
+                .requestId(ctx.requestId())
+                .platformCode(channelOrderId)
+                .build();
+    }
+
+    // ---------------------------------------------------------------- internals
+
+    private String buildOrderListBody(ChannelAccount account, Instant from, Instant to, int offset, int length) {
+        Map<String, Object> body = new LinkedHashMap<String, Object>();
+        body.put("offset", offset);
+        body.put("length", length);
+        if (account.platformCode() != null) {
+            body.put("platform_code", account.platformCode());
+        }
+        if (account.externalStoreId() != null) {
+            body.put("store_id", account.externalStoreId());
+        }
+        // 领星查询时间为 epoch 秒
+        body.put("update_time_start", from.getEpochSecond());
+        body.put("update_time_end", to.getEpochSecond());
+        return json.toJson(body);
+    }
+
+    private HttpRequest signedPost(ChannelContext ctx, String path, String body, String operation) {
+        ChannelAccount account = ctx.account();
+        ChannelSecret secret = secretProvider.get(account.credentialRef());
+        AccessToken token = tokenManager.getOrRefresh(tokenKey(account), secret);
+
+        Map<String, String> common = new LinkedHashMap<String, String>();
+        common.put("app_key", secret.appKey());
+        common.put("timestamp", String.valueOf(Instant.now(clock).getEpochSecond()));
+        String sign = LingxingSigner.sign(common, secret);
+
+        String url = baseUrl + path
+                + "?app_key=" + urlEncode(common.get("app_key"))
+                + "&timestamp=" + common.get("timestamp")
+                + "&sign=" + sign;
+
+        return HttpRequest.builder()
+                .method("POST")
+                .url(url)
+                .header("Content-Type", "application/json")
+                .header("Authorization", token.tokenType() + " " + token.value())
+                .header("X-Request-Id", ctx.requestId())
+                .body(body)
+                .operation(operation)
+                .build();
+    }
+
+    private static String tokenKey(ChannelAccount account) {
+        return "lingxing:" + account.externalStoreId();
+    }
+
+    private static String urlEncode(String v) {
+        try {
+            return URLEncoder.encode(v == null ? "" : v, "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    /** 简单令牌桶；首期按接口串行即可，后续替换为通用 RateLimiter。 */
+    static final class SimpleRateLimiter {
+
+        private final long intervalNanos;
+        private long nextAllowed;
+
+        SimpleRateLimiter(int permitsPerSecond) {
+            this.intervalNanos = 1_000_000_000L / permitsPerSecond;
+        }
+
+        synchronized void acquire() {
+            long now = System.nanoTime();
+            if (now < nextAllowed) {
+                long waitNanos = nextAllowed - now;
+                try {
+                    Thread.sleep(waitNanos / 1_000_000L, (int) (waitNanos % 1_000_000L));
+                } catch (InterruptedException e) {
+                    Thread.currentThread().interrupt();
+                }
+            }
+            nextAllowed = System.nanoTime() + intervalNanos;
+        }
+    }
+}
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingAdapterFactory.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingAdapterFactory.java
@ -0,0 +1,58 @@
				@@ -0,0 +1,58 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.capability.PlatformAdapter;
+import apelet.common.ecommerce.model.ChannelProvider;
+import apelet.common.ecommerce.model.Platform;
+import apelet.common.ecommerce.sdk.AdapterFactory;
+import apelet.common.ecommerce.spi.LockProvider;
+import apelet.common.ecommerce.spi.SecretProvider;
+import apelet.common.ecommerce.spi.TokenStore;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import java.time.Clock;
+import java.util.EnumSet;
+
+/**
+ * 领星适配器工厂。直连适配器使用同一套注册机制。
+ */
+public final class LingxingAdapterFactory implements AdapterFactory {
+
+    private final SecretProvider secretProvider;
+    private final TokenStore tokenStore;
+    private final LockProvider lockProvider;
+    private final Clock clock;
+
+    public LingxingAdapterFactory(SecretProvider secretProvider, TokenStore tokenStore,
+                                  LockProvider lockProvider, Clock clock) {
+        this.secretProvider = secretProvider;
+        this.tokenStore = tokenStore;
+        this.lockProvider = lockProvider;
+        this.clock = clock;
+    }
+
+    @Override
+    public String adapterId() {
+        return LingxingConstants.ADAPTER_ID;
+    }
+
+    @Override
+    public ChannelProvider provider() {
+        return ChannelProvider.LINGXING;
+    }
+
+    @Override
+    public EnumSet<Platform> platforms() {
+        return EnumSet.of(Platform.AMAZON_SC, Platform.AMAZON_VC, Platform.WALMART_SC, Platform.TIKTOK,
+                Platform.TEMU, Platform.EBAY, Platform.SHEIN, Platform.MIRAKL, Platform.CUSTOM);
+    }
+
+    @Override
+    public PlatformAdapter create(AdapterConfig config) {
+        String baseUrl = config.endpointBaseUrl() == null
+                ? LingxingConstants.DEFAULT_BASE_URL : config.endpointBaseUrl();
+        return new LingxingAdapter(baseUrl,
+                new apelet.common.ecommerce.http.OkHttpTransport("common-ecommerce/1.0.0 (lingxing)"),
+                new apelet.common.ecommerce.http.JacksonJsonCodec(),
+                secretProvider, tokenStore, lockProvider, clock);
+    }
+}
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingConstants.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingConstants.java
@ -0,0 +1,60 @@
				@@ -0,0 +1,60 @@
+package apelet.common.ecommerce.lingxing;
+
+/** 领星常量与 platform_code 映射。 */
+public final class LingxingConstants {
+
+    /** 生产环境基址。 */
+    public static final String DEFAULT_BASE_URL = "https://openapi.lingxing.com";
+
+    public static final String ADAPTER_ID = "lingxing";
+
+    /** 获取令牌。 */
+    public static final String PATH_ACCESS_TOKEN = "/api/auth-server/oauth/access-token";
+    /** 多平台订单列表（各平台自发货）。 */
+    public static final String PATH_ORDER_LIST = "/pb/mp/order/v2/list";
+    /** 店铺列表。 */
+    public static final String PATH_SELLER_LIST = "/pb/mp/shop/v2/getSellerList";
+
+    /** 订单查询时间跨度上限：31 天。 */
+    public static final int MAX_QUERY_DAYS = 31;
+    /** 分页 length 上限。 */
+    public static final int MAX_PAGE_SIZE = 500;
+
+    private LingxingConstants() {
+    }
+
+    /**
+     * 领星 platform_code → 统一 Platform。
+     *
+     * <p>10034 同时对应 Mirakl / BestBuy；Target、AEPH 未独立枚举，
+     * 按文档需要到领星后台确认，此处先映射到 CUSTOM，待核对。</p>
+     */
+    public static apelet.common.ecommerce.model.Platform toPlatform(Integer platformCode) {
+        if (platformCode == null) {
+            return null;
+        }
+        switch (platformCode) {
+            case 10001:
+                return apelet.common.ecommerce.model.Platform.AMAZON_SC;
+            case 10035:
+                return apelet.common.ecommerce.model.Platform.AMAZON_VC;
+            case 10008:
+                return apelet.common.ecommerce.model.Platform.WALMART_SC;
+            case 10011:
+                return apelet.common.ecommerce.model.Platform.TIKTOK;
+            case 10022:
+            case 10024:
+                return apelet.common.ecommerce.model.Platform.TEMU;
+            case 10003:
+                return apelet.common.ecommerce.model.Platform.EBAY;
+            case 10021:
+            case 10027:
+            case 10028:
+                return apelet.common.ecommerce.model.Platform.SHEIN;
+            case 10034:
+                return apelet.common.ecommerce.model.Platform.MIRAKL;
+            default:
+                return apelet.common.ecommerce.model.Platform.CUSTOM;
+        }
+    }
+}
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingOrderMapper.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingOrderMapper.java
@ -0,0 +1,112 @@
				@@ -0,0 +1,112 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.http.JacksonJsonCodec;
+import apelet.common.ecommerce.lingxing.dto.LingxingOrderDto;
+import apelet.common.ecommerce.lingxing.dto.LingxingOrderItemDto;
+import apelet.common.ecommerce.model.ChannelProvider;
+import apelet.common.ecommerce.model.Money;
+import apelet.common.ecommerce.model.OrderLine;
+import apelet.common.ecommerce.model.Platform;
+import apelet.common.ecommerce.model.PlatformTime;
+import apelet.common.ecommerce.model.SalesOrder;
+
+import java.time.Instant;
+import java.time.ZoneId;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+/**
+ * 领星订单 → 统一模型。
+ *
+ * <p>领星订单是唯一的映射入口，平台差异全部收敛在这里。</p>
+ */
+public final class LingxingOrderMapper {
+
+    private final JacksonJsonCodec json;
+
+    public LingxingOrderMapper(JacksonJsonCodec json) {
+        this.json = json;
+    }
+
+    public SalesOrder toSalesOrder(LingxingOrderDto dto, String omsStoreId, ZoneId marketplaceZone) {
+        Platform platform = LingxingConstants.toPlatform(dto.getPlatformCode());
+        String channelOrderId = resolveChannelOrderId(dto);
+        String currency = dto.getCurrencyCode() == null ? "USD" : dto.getCurrencyCode();
+
+        List<OrderLine> lines = new ArrayList<OrderLine>();
+        for (LingxingOrderItemDto item : safe(dto.getItemList())) {
+            lines.add(OrderLine.builder()
+                    .lineId(item.getOrderItemId())
+                    // 领星 MSKU 与平台 SKU 不总一致；优先 platform_sku，缺失时回落 sku
+                    .platformSku(item.getPlatformSku() != null ? item.getPlatformSku() : item.getSku())
+                    .quantity(item.getQuantity() == null ? 0 : item.getQuantity())
+                    .unitPrice(moneyOrNull(item.getItemPrice(), currency))
+                    .tax(moneyOrNull(item.getTax(), currency))
+                    .discount(moneyOrNull(item.getDiscount(), currency))
+                    .build());
+        }
+
+        Instant occur = dto.getPurchaseTime() != null
+                ? Instant.ofEpochSecond(dto.getPurchaseTime())
+                : Instant.EPOCH;
+
+        return SalesOrder.builder()
+                .omsStoreId(omsStoreId)
+                .channelOrderId(channelOrderId)
+                .status(dto.getOrderStatus())
+                .buyerName(dto.getBuyerName())
+                .shipToCountryCode(dto.getCountryCode())
+                .lines(lines)
+                .totalAmount(moneyOrNull(dto.getOrderTotal(), currency))
+                .occurredAt(PlatformTime.of(occur, marketplaceZone))
+                .sourceProvider(ChannelProvider.LINGXING)
+                .sourceAccountId(dto.getStoreId())
+                .build();
+    }
+
+    /**
+     * channelOrderId 是 canonicalKey 的一部分，必须稳定。
+     *
+     * <p>优先平台单号；缺失时退回领星 order_id（此时跨 provider 无法去重，
+     * 会由 DuplicateOrderGuard 记录差异）。</p>
+     */
+    static String resolveChannelOrderId(LingxingOrderDto dto) {
+        if (dto.getPlatformOrderNo() != null && !dto.getPlatformOrderNo().trim().isEmpty()) {
+            return dto.getPlatformOrderNo().trim();
+        }
+        List<String> names = dto.getPlatformOrderNames();
+        if (names != null && !names.isEmpty()) {
+            List<String> sorted = new ArrayList<String>(names);
+            Collections.sort(sorted, new Comparator<String>() {
+                @Override
+                public int compare(String a, String b) {
+                    return a.compareTo(b);
+                }
+            });
+            return sorted.get(0);
+        }
+        return dto.getOrderId();
+    }
+
+    public List<LingxingOrderDto> parseList(String body) {
+        return json.listAt(body, "data.list", LingxingOrderDto.class);
+    }
+
+    public int parseTotal(String body) {
+        String total = json.stringAt(body, "data.total");
+        return total == null ? 0 : Integer.parseInt(total);
+    }
+
+    private static <T> List<T> safe(List<T> in) {
+        return in == null ? Collections.<T>emptyList() : in;
+    }
+
+    private static Money moneyOrNull(String value, String currency) {
+        if (value == null || value.trim().isEmpty()) {
+            return null;
+        }
+        return Money.of(value.trim(), currency);
+    }
+}
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingSigner.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingSigner.java
@ -0,0 +1,58 @@
				@@ -0,0 +1,58 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.spi.ChannelSecret;
+
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * 领星签名：公共参数按 ASCII 升序拼接 {@code key+value}，前后拼 appSecret，MD5 小写。
+ *
+ * <p>待核对：官方文档对 sign 的大小写与大写规则未在需求文档中固化，
+ * 实现集中在 {@link #sign(Map, String)} 一处，便于联调时调整。</p>
+ */
+public final class LingxingSigner {
+
+    private LingxingSigner() {
+    }
+
+    /**
+     * @param params    参与签名的参数（不含 sign），值不得为 null
+     * @param appSecret 应用密钥
+     */
+    public static String sign(Map<String, String> params, String appSecret) {
+        List<String> keys = new ArrayList<String>(params.keySet());
+        Collections.sort(keys);
+        StringBuilder sb = new StringBuilder(appSecret);
+        for (String k : keys) {
+            sb.append(k).append(params.get(k));
+        }
+        sb.append(appSecret);
+        return md5Hex(sb.toString());
+    }
+
+    /** 便捷：从凭证取 appSecret。 */
+    public static String sign(Map<String, String> params, ChannelSecret secret) {
+        return sign(params, secret.appSecret());
+    }
+
+    static String md5Hex(String raw) {
+        try {
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            byte[] digest = md.digest(raw.getBytes(StandardCharsets.UTF_8));
+            StringBuilder sb = new StringBuilder(digest.length * 2);
+            for (byte b : digest) {
+                sb.append(Character.forDigit((b >> 4) & 0xF, 16));
+                sb.append(Character.forDigit(b & 0xF, 16));
+            }
+            return sb.toString();
+        } catch (NoSuchAlgorithmException e) {
+            throw new IllegalStateException("MD5 not available", e);
+        }
+    }
+}
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingTokenClient.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/LingxingTokenClient.java
@ -0,0 +1,67 @@
				@@ -0,0 +1,67 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.http.HttpRequest;
+import apelet.common.ecommerce.http.HttpResponse;
+import apelet.common.ecommerce.http.HttpTransport;
+import apelet.common.ecommerce.http.JsonCodec;
+import apelet.common.ecommerce.http.Responses;
+import apelet.common.ecommerce.spi.AccessToken;
+
+import java.time.Instant;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+/**
+ * 领星令牌获取：{@code POST /api/auth-server/oauth/access-token}。
+ *
+ * <p>请求体字段名以官方文档为准（appId/appSecret），这里集中在一处便于联调调整。</p>
+ */
+public final class LingxingTokenClient {
+
+    private final HttpTransport transport;
+    private final JsonCodec json;
+    private final String baseUrl;
+
+    public LingxingTokenClient(HttpTransport transport, JsonCodec json, String baseUrl) {
+        this.transport = transport;
+        this.json = json;
+        this.baseUrl = baseUrl;
+    }
+
+    public AccessToken fetch(String appId, String appSecret) {
+        Map<String, String> body = new LinkedHashMap<String, String>();
+        body.put("appId", appId);
+        body.put("appSecret", appSecret);
+
+        HttpRequest req = HttpRequest.builder()
+                .method("POST")
+                .url(baseUrl + LingxingConstants.PATH_ACCESS_TOKEN)
+                .header("Content-Type", "application/json")
+                .body(json.toJson(body))
+                .operation("token.refresh")
+                .build();
+
+        HttpResponse resp = transport.execute(req);
+        Responses.throwIfNotSuccess(resp, "token.refresh");
+
+        String token = json.stringAt(resp.body(), "data.access_token");
+        if (token == null) {
+            // 兼容部分版本的 data 为数组
+            token = json.stringAt(resp.body(), "data.0.access_token");
+        }
+        String accessToken = json.stringAt(resp.body(), "access_token");
+        if (accessToken == null) {
+            accessToken = token;
+        }
+        String refreshToken = json.stringAt(resp.body(), "data.refresh_token");
+        String expiresIn = json.stringAt(resp.body(), "data.expires_in");
+
+        long seconds = expiresIn == null ? 7199L : Long.parseLong(expiresIn);
+        return AccessToken.builder()
+                .value(accessToken)
+                .refreshToken(refreshToken)
+                .expiresAt(Instant.now().plusSeconds(seconds))
+                .tokenType("Bearer")
+                .build();
+    }
+}
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/dto/LingxingOrderDto.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/dto/LingxingOrderDto.java
@ -0,0 +1,196 @@
				@@ -0,0 +1,196 @@
+package apelet.common.ecommerce.lingxing.dto;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 领星多平台订单列表条目。
+ *
+ * <p><b>待核对</b>：字段名依据领星 OpenAPI 文档摘录，联调时以官方最新文档
+ * 与真实响应为准；调整集中在本 DTO 与 {@code LingxingOrderMapper}。</p>
+ */
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class LingxingOrderDto {
+
+    /** 领星内部订单 ID。 */
+    @JsonProperty("order_id")
+    private String orderId;
+
+    /** 平台订单号（Amazon / Walmart PO / eBay 等）。 */
+    @JsonProperty("platform_order_no")
+    private String platformOrderNo;
+
+    /** 部分接口返回平台单号数组，eBay 需用 platform_order_names 查询。 */
+    @JsonProperty("platform_order_names")
+    private List<String> platformOrderNames = new ArrayList<String>();
+
+    /** 领星平台码，如 10008=Walmart。 */
+    @JsonProperty("platform_code")
+    private Integer platformCode;
+
+    /** 领星店铺 ID。 */
+    @JsonProperty("store_id")
+    private String storeId;
+
+    /** 平台侧订单状态。 */
+    @JsonProperty("order_status")
+    private String orderStatus;
+
+    /** 买家名称。 */
+    @JsonProperty("buyer_name")
+    private String buyerName;
+
+    /** 收货国家二字码。 */
+    @JsonProperty("country_code")
+    private String countryCode;
+
+    /** 订单币种。 */
+    @JsonProperty("currency_code")
+    private String currencyCode;
+
+    /** 订单总额。 */
+    @JsonProperty("order_total")
+    private String orderTotal;
+
+    /** 站点本地下单时间字符串。 */
+    @JsonProperty("purchase_time_locale")
+    private String purchaseTimeLocale;
+
+    /** epoch 秒下单时间。 */
+    @JsonProperty("purchase_time")
+    private Long purchaseTime;
+
+    /** epoch 秒更新时间。 */
+    @JsonProperty("update_time")
+    private Long updateTime;
+
+    /** 站点本地更新时间字符串。 */
+    @JsonProperty("update_time_locale")
+    private String updateTimeLocale;
+
+    @JsonProperty("item_list")
+    private List<LingxingOrderItemDto> itemList = new ArrayList<LingxingOrderItemDto>();
+
+    public String getOrderId() {
+        return orderId;
+    }
+
+    public void setOrderId(String orderId) {
+        this.orderId = orderId;
+    }
+
+    public String getPlatformOrderNo() {
+        return platformOrderNo;
+    }
+
+    public void setPlatformOrderNo(String platformOrderNo) {
+        this.platformOrderNo = platformOrderNo;
+    }
+
+    public List<String> getPlatformOrderNames() {
+        return platformOrderNames;
+    }
+
+    public void setPlatformOrderNames(List<String> platformOrderNames) {
+        this.platformOrderNames = platformOrderNames;
+    }
+
+    public Integer getPlatformCode() {
+        return platformCode;
+    }
+
+    public void setPlatformCode(Integer platformCode) {
+        this.platformCode = platformCode;
+    }
+
+    public String getStoreId() {
+        return storeId;
+    }
+
+    public void setStoreId(String storeId) {
+        this.storeId = storeId;
+    }
+
+    public String getOrderStatus() {
+        return orderStatus;
+    }
+
+    public void setOrderStatus(String orderStatus) {
+        this.orderStatus = orderStatus;
+    }
+
+    public String getBuyerName() {
+        return buyerName;
+    }
+
+    public void setBuyerName(String buyerName) {
+        this.buyerName = buyerName;
+    }
+
+    public String getCountryCode() {
+        return countryCode;
+    }
+
+    public void setCountryCode(String countryCode) {
+        this.countryCode = countryCode;
+    }
+
+    public String getCurrencyCode() {
+        return currencyCode;
+    }
+
+    public void setCurrencyCode(String currencyCode) {
+        this.currencyCode = currencyCode;
+    }
+
+    public String getOrderTotal() {
+        return orderTotal;
+    }
+
+    public void setOrderTotal(String orderTotal) {
+        this.orderTotal = orderTotal;
+    }
+
+    public String getPurchaseTimeLocale() {
+        return purchaseTimeLocale;
+    }
+
+    public void setPurchaseTimeLocale(String purchaseTimeLocale) {
+        this.purchaseTimeLocale = purchaseTimeLocale;
+    }
+
+    public Long getPurchaseTime() {
+        return purchaseTime;
+    }
+
+    public void setPurchaseTime(Long purchaseTime) {
+        this.purchaseTime = purchaseTime;
+    }
+
+    public Long getUpdateTime() {
+        return updateTime;
+    }
+
+    public void setUpdateTime(Long updateTime) {
+        this.updateTime = updateTime;
+    }
+
+    public String getUpdateTimeLocale() {
+        return updateTimeLocale;
+    }
+
+    public void setUpdateTimeLocale(String updateTimeLocale) {
+        this.updateTimeLocale = updateTimeLocale;
+    }
+
+    public List<LingxingOrderItemDto> getItemList() {
+        return itemList;
+    }
+
+    public void setItemList(List<LingxingOrderItemDto> itemList) {
+        this.itemList = itemList;
+    }
+}
--- a/lingxing/src/main/java/apelet/common/ecommerce/lingxing/dto/LingxingOrderItemDto.java
+++ b/lingxing/src/main/java/apelet/common/ecommerce/lingxing/dto/LingxingOrderItemDto.java
@ -0,0 +1,88 @@
				@@ -0,0 +1,88 @@
+package apelet.common.ecommerce.lingxing.dto;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/** 领星订单明细行。字段名待官方文档核对。 */
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class LingxingOrderItemDto {
+
+    @JsonProperty("order_item_id")
+    private String orderItemId;
+
+    /** 领星 MSKU，需映射回平台 SKU 才能与直连对齐。 */
+    @JsonProperty("sku")
+    private String sku;
+
+    /** 平台 SKU（部分接口返回）。 */
+    @JsonProperty("platform_sku")
+    private String platformSku;
+
+    @JsonProperty("quantity")
+    private Integer quantity;
+
+    @JsonProperty("item_price")
+    private String itemPrice;
+
+    @JsonProperty("tax")
+    private String tax;
+
+    @JsonProperty("discount")
+    private String discount;
+
+    public String getOrderItemId() {
+        return orderItemId;
+    }
+
+    public void setOrderItemId(String orderItemId) {
+        this.orderItemId = orderItemId;
+    }
+
+    public String getSku() {
+        return sku;
+    }
+
+    public void setSku(String sku) {
+        this.sku = sku;
+    }
+
+    public String getPlatformSku() {
+        return platformSku;
+    }
+
+    public void setPlatformSku(String platformSku) {
+        this.platformSku = platformSku;
+    }
+
+    public Integer getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(Integer quantity) {
+        this.quantity = quantity;
+    }
+
+    public String getItemPrice() {
+        return itemPrice;
+    }
+
+    public void setItemPrice(String itemPrice) {
+        this.itemPrice = itemPrice;
+    }
+
+    public String getTax() {
+        return tax;
+    }
+
+    public void setTax(String tax) {
+        this.tax = tax;
+    }
+
+    public String getDiscount() {
+        return discount;
+    }
+
+    public void setDiscount(String discount) {
+        this.discount = discount;
+    }
+}
--- a/lingxing/src/test/java/apelet/common/ecommerce/lingxing/LingxingAdapterTest.java
+++ b/lingxing/src/test/java/apelet/common/ecommerce/lingxing/LingxingAdapterTest.java
@ -0,0 +1,190 @@
				@@ -0,0 +1,190 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.http.JacksonJsonCodec;
+import apelet.common.ecommerce.model.AccountKey;
+import apelet.common.ecommerce.model.ChannelAccount;
+import apelet.common.ecommerce.model.ChannelProvider;
+import apelet.common.ecommerce.model.Page;
+import apelet.common.ecommerce.model.Platform;
+import apelet.common.ecommerce.model.SalesOrder;
+import apelet.common.ecommerce.model.SalesOrderQuery;
+import apelet.common.ecommerce.sdk.ChannelContext;
+import apelet.common.ecommerce.spi.ChannelSecret;
+import apelet.common.ecommerce.sync.SyncEngine;
+import apelet.common.ecommerce.sync.SyncResult;
+import apelet.common.ecommerce.sync.SyncSpec;
+import apelet.common.ecommerce.testkit.FakeTransport;
+import apelet.common.ecommerce.testkit.Fixtures;
+import apelet.common.ecommerce.testkit.InMemoryAccounts;
+import apelet.common.ecommerce.testkit.InMemoryCursorStore;
+import apelet.common.ecommerce.testkit.InMemoryLockProvider;
+import apelet.common.ecommerce.testkit.InMemorySink;
+import apelet.common.ecommerce.testkit.InMemoryTokenStore;
+import apelet.common.ecommerce.testkit.Responses;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.time.Clock;
+import java.time.Duration;
+import java.time.Instant;
+import java.time.ZoneOffset;
+import java.util.Collections;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/**
+ * 领星订单拉取的契约测试：不依赖网络、数据库、Spring。
+ */
+class LingxingAdapterTest {
+
+    private static final String CREDENTIAL_REF = "kms://test/lingxing/001";
+
+    private FakeTransport transport;
+    private InMemoryTokenStore tokenStore;
+    private InMemoryAccounts accounts;
+    private InMemoryLockProvider locks;
+    private LingxingAdapter adapter;
+    private ChannelAccount account;
+    private ChannelContext ctx;
+
+    @BeforeEach
+    void setUp() {
+        transport = FakeTransport.create();
+        tokenStore = new InMemoryTokenStore();
+        accounts = new InMemoryAccounts();
+        locks = new InMemoryLockProvider();
+
+        account = ChannelAccount.builder()
+                .key(AccountKey.of(ChannelProvider.LINGXING, Platform.WALMART_SC, "oms-wm-001"))
+                .externalStoreId("1108413237731")
+                .platformCode(10008)
+                .credentialRef(CREDENTIAL_REF)
+                .marketplaceZone("America/Los_Angeles")
+                .currency("USD")
+                .build();
+
+        accounts.put(account).putSecret(CREDENTIAL_REF, ChannelSecret.builder()
+                .appKey("test-app-key")
+                .appSecret("test-app-secret")
+                .build());
+
+        Clock clock = Clock.fixed(Instant.parse("2026-10-29T00:00:00Z"), ZoneOffset.UTC);
+        adapter = new LingxingAdapter(LingxingConstants.DEFAULT_BASE_URL, transport, new JacksonJsonCodec(),
+                accounts, tokenStore, locks, clock);
+
+        ctx = ChannelContext.of(account, "req-1", clock);
+
+        String tokenJson = Fixtures.load(LingxingAdapterTest.class, "lingxing", "token", "success");
+        String orderJson = Fixtures.load(LingxingAdapterTest.class, "lingxing", "orderList", "success");
+        transport.route(LingxingConstants.PATH_ACCESS_TOKEN, "POST", r -> Responses.ok(tokenJson));
+        transport.route(LingxingConstants.PATH_ORDER_LIST, "POST", r -> Responses.ok(orderJson));
+    }
+
+    @Test
+    void pullsOrdersAndMapsToUnifiedModel() {
+        Page<SalesOrder> page = adapter.pull(ctx, SalesOrderQuery.builder()
+                .updatedAfter(Instant.parse("2026-10-25T00:00:00Z"))
+                .updatedBefore(Instant.parse("2026-10-26T00:00:00Z"))
+                .pageSize(100)
+                .build());
+
+        assertEquals(3, page.size());
+        assertEquals("PO-123456789", page.items().get(0).channelOrderId());
+        assertEquals(ChannelProvider.LINGXING, page.items().get(0).sourceProvider());
+        // total=3, offset 0 + 3 = 3 → 结束
+        assertNull(page.nextCursor());
+    }
+
+    @Test
+    void tokenFetchedOnceAndReused() {
+        SalesOrderQuery q = SalesOrderQuery.builder()
+                .updatedAfter(Instant.parse("2026-10-25T00:00:00Z"))
+                .updatedBefore(Instant.parse("2026-10-26T00:00:00Z"))
+                .build();
+        adapter.pull(ctx, q);
+        adapter.pull(ctx, q);
+
+        assertEquals(1, tokenStore.saveCount(), "token should be refreshed only once");
+        assertEquals(1, locks.acquireCount("token-refresh:lingxing:1108413237731"));
+        assertNotNull(tokenStore.get("lingxing:1108413237731").orElse(null));
+    }
+
+    @Test
+    void requestCarriesSignAndBearerToken() {
+        adapter.pull(ctx, SalesOrderQuery.builder()
+                .updatedAfter(Instant.parse("2026-10-25T00:00:00Z"))
+                .updatedBefore(Instant.parse("2026-10-26T00:00:00Z"))
+                .build());
+
+        apelet.common.ecommerce.http.HttpRequest last = transport.lastRequest();
+        assertTrue(last.url().contains("app_key=test-app-key"), last.url());
+        assertTrue(last.url().contains("sign="), last.url());
+        assertEquals("Bearer lx-access-token-abc", last.headers().get("Authorization"));
+        assertEquals("req-1", last.headers().get("X-Request-Id"));
+        assertTrue(last.body().contains("\"platform_code\":10008"), last.body());
+        assertTrue(last.body().contains("\"store_id\":\"1108413237731\""), last.body());
+    }
+
+    @Test
+    void queryWindowClampedTo31Days() {
+        adapter.pull(ctx, SalesOrderQuery.builder()
+                .updatedAfter(Instant.parse("2026-01-01T00:00:00Z"))
+                .updatedBefore(Instant.parse("2026-10-26T00:00:00Z"))
+                .build());
+
+        String body = transport.lastRequest().body();
+        long end = Instant.parse("2026-10-26T00:00:00Z").getEpochSecond();
+        long expectedStart = Instant.parse("2026-10-26T00:00:00Z").minus(Duration.ofDays(31)).getEpochSecond();
+        assertTrue(body.contains("\"update_time_end\":" + end), body);
+        assertTrue(body.contains("\"update_time_start\":" + expectedStart), body);
+    }
+
+    @Test
+    void syncEngineAdvancesWatermarkOnlyAfterWholeBatch() {
+        InMemoryCursorStore cursors = new InMemoryCursorStore();
+        InMemorySink sink = new InMemorySink();
+        SyncSpec spec = SyncSpec.of(ChannelProvider.LINGXING, "oms-wm-001",
+                SyncSpec.STREAM_SALES_ORDERS, Duration.ofMinutes(10));
+        cursors.seed(ChannelProvider.LINGXING, "oms-wm-001", SyncSpec.STREAM_SALES_ORDERS,
+                Instant.parse("2026-10-25T00:00:00Z"));
+
+        Instant to = Instant.parse("2026-10-26T00:00:00Z");
+        SyncResult result = new SyncEngine(cursors, sink).syncSalesOrders(spec, to,
+                (from, cursor) -> adapter.pull(ctx, SalesOrderQuery.builder()
+                        .updatedAfter(from).updatedBefore(to).build()));
+
+        assertEquals(1, result.pages());
+        assertEquals(3, result.items());
+        assertTrue(result.watermarkAdvanced());
+        assertEquals(to, cursors.watermark(ChannelProvider.LINGXING, "oms-wm-001",
+                SyncSpec.STREAM_SALES_ORDERS));
+        assertEquals(3, sink.salesOrders().size());
+    }
+
+    @Test
+    void capabilityIsAccountScoped() {
+        ChannelAccount ebay = ChannelAccount.builder()
+                .key(AccountKey.of(ChannelProvider.LINGXING, Platform.EBAY, "oms-ebay-001"))
+                .externalStoreId("1108413237731")
+                .platformCode(10003)
+                .credentialRef(CREDENTIAL_REF)
+                .marketplaceZone("America/New_York")
+                .currency("USD")
+                .build();
+
+        assertTrue(adapter.supports(account, apelet.common.ecommerce.model.Capability.SALES_ORDER));
+        assertTrue(adapter.supports(ebay, apelet.common.ecommerce.model.Capability.SALES_ORDER));
+        // eBay 在领星侧未见账单与退货接口
+        assertEquals(false, adapter.supports(ebay, apelet.common.ecommerce.model.Capability.BILLING));
+        assertEquals(false, adapter.supports(ebay, apelet.common.ecommerce.model.Capability.REFUND));
+    }
+
+    @Test
+    void subChannelsReflectAccount() {
+        assertEquals(1, adapter.listSubChannels(account).size());
+        assertEquals(10008, adapter.listSubChannels(account).get(0).platformCode());
+    }
+}
--- a/lingxing/src/test/java/apelet/common/ecommerce/lingxing/LingxingOrderMapperTest.java
+++ b/lingxing/src/test/java/apelet/common/ecommerce/lingxing/LingxingOrderMapperTest.java
@ -0,0 +1,72 @@
				@@ -0,0 +1,72 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.http.JacksonJsonCodec;
+import apelet.common.ecommerce.lingxing.dto.LingxingOrderDto;
+import apelet.common.ecommerce.model.ChannelProvider;
+import apelet.common.ecommerce.model.SalesOrder;
+import apelet.common.ecommerce.testkit.Fixtures;
+import org.junit.jupiter.api.Test;
+
+import java.time.ZoneId;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+class LingxingOrderMapperTest {
+
+    private final JacksonJsonCodec json = new JacksonJsonCodec();
+    private final LingxingOrderMapper mapper = new LingxingOrderMapper(json);
+
+    private List<LingxingOrderDto> fixture() {
+        String body = Fixtures.load(LingxingOrderMapperTest.class, "lingxing", "orderList", "success");
+        return json.listAt(body, "data.list", LingxingOrderDto.class);
+    }
+
+    @Test
+    void mapsWalmartOrder() {
+        SalesOrder o = mapper.toSalesOrder(fixture().get(0), "oms-wm-001", ZoneId.of("America/Los_Angeles"));
+
+        assertEquals("oms-wm-001", o.omsStoreId());
+        assertEquals("PO-123456789", o.channelOrderId());
+        assertEquals("Shipped", o.status());
+        assertEquals("US", o.shipToCountryCode());
+        assertEquals(2, o.lines().size());
+        assertEquals("SKU-RED-M", o.lines().get(0).platformSku());
+        assertEquals(2, o.lines().get(0).quantity());
+        assertEquals("59.97 USD", o.totalAmount().toString());
+        assertEquals(ChannelProvider.LINGXING, o.sourceProvider());
+        assertEquals("1108413237731", o.sourceAccountId());
+        // epoch 秒 1793001600 → UTC 2026-10-26T08:00:00Z
+        assertEquals(1793001600L, o.occurredAt().utc().getEpochSecond());
+    }
+
+    @Test
+    void fallsBackToSkuWhenPlatformSkuMissing() {
+        SalesOrder o = mapper.toSalesOrder(fixture().get(1), "oms-ebay-001", ZoneId.of("America/New_York"));
+        assertEquals("MSKU-GREEN-S", o.lines().get(0).platformSku());
+        assertNull(o.lines().get(0).tax());
+    }
+
+    @Test
+    void platformOrderNamesSortedForStableCanonicalKey() {
+        // 返回顺序是 EBAY-2222, EBAY-1111，取排序后第一个，保证多次同步 key 稳定
+        SalesOrder o = mapper.toSalesOrder(fixture().get(1), "oms-ebay-001", ZoneId.of("America/New_York"));
+        assertEquals("EBAY-1111", o.channelOrderId());
+    }
+
+    @Test
+    void fallsBackToLingxingOrderIdWhenNoPlatformNo() {
+        SalesOrder o = mapper.toSalesOrder(fixture().get(2), "oms-tts-001", ZoneId.of("Europe/London"));
+        assertEquals("LX-1003", o.channelOrderId());
+    }
+
+    @Test
+    void platformCodeMapsToUnifiedPlatform() {
+        assertEquals(apelet.common.ecommerce.model.Platform.WALMART_SC, LingxingConstants.toPlatform(10008));
+        assertEquals(apelet.common.ecommerce.model.Platform.EBAY, LingxingConstants.toPlatform(10003));
+        assertEquals(apelet.common.ecommerce.model.Platform.SHEIN, LingxingConstants.toPlatform(10027));
+        assertEquals(apelet.common.ecommerce.model.Platform.CUSTOM, LingxingConstants.toPlatform(99999));
+        assertNull(LingxingConstants.toPlatform(null));
+    }
+}
--- a/lingxing/src/test/java/apelet/common/ecommerce/lingxing/LingxingSignerTest.java
+++ b/lingxing/src/test/java/apelet/common/ecommerce/lingxing/LingxingSignerTest.java
@ -0,0 +1,54 @@
				@@ -0,0 +1,54 @@
+package apelet.common.ecommerce.lingxing;
+
+import apelet.common.ecommerce.http.JsonCodec;
+import org.junit.jupiter.api.Test;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+class LingxingSignerTest {
+
+    @Test
+    void signatureIsOrderIndependent() {
+        Map<String, String> a = new LinkedHashMap<String, String>();
+        a.put("app_key", "k1");
+        a.put("timestamp", "1793001600");
+
+        Map<String, String> b = new LinkedHashMap<String, String>();
+        b.put("timestamp", "1793001600");
+        b.put("app_key", "k1");
+
+        assertEquals(LingxingSigner.sign(a, "secret"), LingxingSigner.sign(b, "secret"));
+    }
+
+    @Test
+    void signatureIs32LowercaseHex() {
+        Map<String, String> p = new LinkedHashMap<String, String>();
+        p.put("app_key", "k1");
+        p.put("timestamp", "1793001600");
+        String sign = LingxingSigner.sign(p, "secret");
+        assertEquals(32, sign.length());
+        assertEquals(sign.toLowerCase(), sign);
+        assertEquals(true, sign.matches("[0-9a-f]{32}"));
+    }
+
+    @Test
+    void differentSecretDifferentSignature() {
+        Map<String, String> p = new LinkedHashMap<String, String>();
+        p.put("app_key", "k1");
+        assertNotEquals(LingxingSigner.sign(p, "a"), LingxingSigner.sign(p, "b"));
+    }
+
+    @Test
+    void knownVector() {
+        // 固定向量：appSecret + "app_key" + "k1" + "timestamp" + "1793001600" + appSecret
+        Map<String, String> p = new LinkedHashMap<String, String>();
+        p.put("app_key", "k1");
+        p.put("timestamp", "1793001600");
+        assertEquals(LingxingSigner.md5Hex("secretapp_keyk1timestamp1793001600secret"),
+                LingxingSigner.sign(p, "secret"));
+    }
+}
--- a/lingxing/src/test/resources/fixtures/lingxing/orderList/success.json
+++ b/lingxing/src/test/resources/fixtures/lingxing/orderList/success.json
@ -0,0 +1,77 @@
				@@ -0,0 +1,77 @@
+{
+  "code": 0,
+  "msg": "success",
+  "data": {
+    "total": 3,
+    "list": [
+      {
+        "order_id": "LX-1001",
+        "platform_order_no": "PO-123456789",
+        "platform_code": 10008,
+        "store_id": "1108413237731",
+        "order_status": "Shipped",
+        "buyer_name": "John Doe",
+        "country_code": "US",
+        "currency_code": "USD",
+        "order_total": "59.97",
+        "purchase_time": 1793001600,
+        "update_time": 1793088000,
+        "purchase_time_locale": "2026-10-26 08:00:00",
+        "update_time_locale": "2026-10-27 08:00:00",
+        "item_list": [
+          {
+            "order_item_id": "ITEM-1",
+            "sku": "MSKU-RED-M",
+            "platform_sku": "SKU-RED-M",
+            "quantity": 2,
+            "item_price": "19.99",
+            "tax": "1.60",
+            "discount": "0.00"
+          },
+          {
+            "order_item_id": "ITEM-2",
+            "sku": "MSKU-BLUE-L",
+            "quantity": 1,
+            "item_price": "19.99",
+            "tax": "0.80",
+            "discount": "0.00"
+          }
+        ]
+      },
+      {
+        "order_id": "LX-1002",
+        "platform_order_names": ["EBAY-2222", "EBAY-1111"],
+        "platform_code": 10003,
+        "store_id": "1108413237731",
+        "order_status": "Paid",
+        "buyer_name": "Jane Roe",
+        "country_code": "US",
+        "currency_code": "USD",
+        "order_total": "15.00",
+        "purchase_time": 1793002000,
+        "update_time": 1793088000,
+        "item_list": [
+          {
+            "order_item_id": "ITEM-3",
+            "sku": "MSKU-GREEN-S",
+            "quantity": 1,
+            "item_price": "15.00"
+          }
+        ]
+      },
+      {
+        "order_id": "LX-1003",
+        "platform_code": 10011,
+        "store_id": "1108413237731",
+        "order_status": "Unpaid",
+        "buyer_name": "No Platform No",
+        "country_code": "GB",
+        "currency_code": "GBP",
+        "order_total": "10.00",
+        "purchase_time": 1793003000,
+        "update_time": 1793088000,
+        "item_list": []
+      }
+    ]
+  }
+}
--- a/lingxing/src/test/resources/fixtures/lingxing/token/success.json
+++ b/lingxing/src/test/resources/fixtures/lingxing/token/success.json
@ -0,0 +1,9 @@
				@@ -0,0 +1,9 @@
+{
+  "code": 0,
+  "msg": "success",
+  "data": {
+    "access_token": "lx-access-token-abc",
+    "refresh_token": "lx-refresh-token-xyz",
+    "expires_in": 7199
+  }
+}