# MC 插件对接指南(外部 API)

本文面向 Bukkit/Paper/Spigot 插件开发者,演示如何用 Java 对接 MC Report 外部 API(提交举报、同步封禁、查询进度)。完整接口定义见 [EXTERNAL-API.md](EXTERNAL-API.md)。

> 仓库不再内置插件代码 —— 按本指南即可自行实现;凭据(ID+Secret)在站点后台「外部API」页创建。

---

## 一、鉴权流程(Java 实现)

外部 API 用 **ID + Secret 换取 SESSION**,之后所有请求带 `Authorization: Bearer <SESSION>`。

```java
public class McReportApi {
    private final String baseUrl;        // 如 https://mc.example.com/api/external
    private final String clientId;       // 后台创建: 16 位数字
    private final String clientSecret;   // 后台创建: 32 位随机串
    private String sessionToken;
    private long sessionExpiresAt;       // 到期时间戳(ms)

    public McReportApi(String baseUrl, String clientId, String clientSecret) {
        this.baseUrl = baseUrl;
        this.clientId = clientId;
        this.clientSecret = clientSecret;
    }

    /** 获取有效 SESSION, 过期则自动换新 */
    public synchronized String session() throws Exception {
        if (sessionToken != null && System.currentTimeMillis() < sessionExpiresAt) {
            return sessionToken;
        }
        JSONObject body = new JSONObject();
        HttpURLConnection conn = open("POST", "/auth/session", null);
        conn.setRequestProperty("x-api-client-id", clientId);
        conn.setRequestProperty("x-api-secret", clientSecret);
        conn.setDoOutput(true);
        conn.getOutputStream().write(body.toString().getBytes(StandardCharsets.UTF_8));

        JSONObject resp = readJson(conn);
        sessionToken = resp.getString("session_token");
        sessionExpiresAt = System.currentTimeMillis() + resp.getLong("expires_in") * 1000L - 60_000L; // 提前1分钟过期
        return sessionToken;
    }

    private HttpURLConnection open(String method, String path, String token) throws Exception {
        HttpURLConnection conn = (HttpURLConnection) new URL(baseUrl + path).openConnection();
        conn.setRequestMethod(method);
        conn.setConnectTimeout(5000);
        conn.setReadTimeout(10000);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestProperty("User-Agent", "MCReportPlugin/1.0");
        if (token != null) conn.setRequestProperty("Authorization", "Bearer " + token);
        return conn;
    }

    private JSONObject readJson(HttpURLConnection conn) throws Exception {
        int code = conn.getResponseCode();
        InputStream in = code >= 200 && code < 300 ? conn.getInputStream() : conn.getErrorStream();
        String text = new String(in.readAllBytes(), StandardCharsets.UTF_8);
        JSONObject json = new JSONObject(text);
        if (code >= 400) throw new RuntimeException(json.optString("error", "HTTP " + code));
        return json;
    }
}
```

## 二、提交举报工单

```java
/** 玩家在游戏内执行 /report 命令时调用 */
public JSONObject submitReport(String reporterName, String targetName, String reason,
                               String serverName, String description) throws Exception {
    String token = session();
    JSONObject body = new JSONObject();
    body.put("type", "report");
    body.put("title", "游戏内举报: " + targetName);
    body.put("reporter_game_name", reporterName);
    body.put("target_game_name", targetName);
    body.put("reason", reason);
    body.put("description", description);
    body.put("server", serverName);          // 子服别名或「分组/子服」

    HttpURLConnection conn = open("POST", "/tickets", token);
    conn.setDoOutput(true);
    conn.getOutputStream().write(body.toString().getBytes(StandardCharsets.UTF_8));
    JSONObject resp = readJson(conn);
    // resp: {"id": 123, "tracking_token": "..."}
    return resp;
}
```

**返回的 `tracking_token` 请保存**(例如写进玩家持久数据),玩家可用它查询处理进度:

```java
public JSONObject trackTicket(String trackingToken) throws Exception {
    return readJson(open("GET", "/tickets/track?token=" + URLEncoder.encode(trackingToken, "UTF-8"), session()));
}
```

## 三、拉取/同步封禁

```java
/** 定时任务: 每 5 分钟同步一次本服生效封禁 */
public JSONArray fetchActiveBans(String serverName) throws Exception {
    String token = session();
    String path = "/bans?status=active&limit=500"
        + (serverName != null && !serverName.isEmpty()
            ? "&server=" + URLEncoder.encode(serverName, "UTF-8") : "");
    return readJson(open("GET", path, token)).getJSONArray("data");
}

/** 服务器内封禁玩家后同步到系统 */
public JSONObject createBan(String playerName, String reason, String type,
                            String duration, String serverName) throws Exception {
    JSONObject body = new JSONObject();
    body.put("player_name", playerName);
    body.put("reason", reason);
    body.put("type", type);                  // ban / mute / warn
    body.put("duration", duration);          // 如 "7d", 空=永久
    body.put("server", serverName);
    return readJson(open("POST", "/bans", session()));  // 需带 body
}
```

> 注意:`POST /bans` 需设置 `setDoOutput(true)` 并写入 body(与 submitReport 相同写法)。

## 四、配置

`plugins/<你的插件>/config.yml`:

```yaml
# MC Report 外部 API 配置
api_url: "https://mc.example.com/api/external"
client_id: "1829473056482917"      # 后台「外部API」创建
client_secret: "a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6"
server_name: "survival"            # 本服别名(后台服务器管理配置)
```

---

## 常见问题

| 问题 | 处理 |
|------|------|
| `401` | ID/Secret 错误或客户端被停用;检查后台「外部API」 |
| `401 SESSION 无效或已过期` | 重新调用 `/auth/session` 换取(示例代码已自动处理) |
| `400 待处理工单已达上限` | 同一玩家待处理工单最多 5 个 |
| 换服/改名 | 用 `server` 参数按子服隔离数据;玩家身份以 `game_name` 为准 |