{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://wanxiang.ai/contracts/events.schema.json",
  "title": "TelemetryEvents",
  "description": "绘境AI 遥测事件契约 v1（契约 #5，owner=WS5）。前端批量上报 / SDK 上报 → /app-api/telemetry/events/batch → MQ 异步入库 → qualityScore → feed 排序（数据回路闭环）。每事件带 schemaVersion；新增字段给默认值、老消费者忽略未知字段；不兼容变更用新事件名。【Wave3 GAP-4 评审记录】利用无生产数据 + MQ 未实现窗口，一次性把信封 envelope/user 由 snake_case 统一为 camelCase（与 telemetry.yaml 及前端 SDK 对齐），保持 additionalProperties:false；豁免本文件 README §2『不兼容变更用新事件名并行』规则（本次改的是信封字段命名而非事件名），已确认仓外无 snake_case 消费者（telemetry.yaml/sdk-interface.d.ts/game-studio 均为 camelCase）。",
  "type": "object",
  "required": ["envelope", "eventRegistry"],
  "additionalProperties": false,
  "properties": {
    "envelope": {
      "description": "事件信封（所有事件共用）。批量上报时为 { batch: Envelope[] }。",
      "type": "object",
      "required": ["event", "schemaVersion", "ts", "traceId", "eventId"],
      "additionalProperties": false,
      "properties": {
        "event": { "description": "事件名（见 eventRegistry 键）", "type": "string" },
        "schemaVersion": { "description": "事件 Schema 版本，如 v1 / v2", "type": "string", "pattern": "^v[0-9]+$" },
        "ts": { "description": "事件发生时间戳（毫秒）", "type": "integer" },
        "traceId": { "description": "全链路追踪 ID，贯穿生成→编译→加载→运行→上报", "type": "string" },
        "eventId": { "description": "事件实例 UUID（每事件实例唯一，幂等真身）。前端 crypto.randomUUID() 生成；服务端落 game_telemetry_event.event_id（uk_event_id 唯一键），重放同 eventId 不重复计数。", "type": "string" },
        "sessionId": { "description": "会话 ID（一次游戏流消费/一次创作会话）", "type": "string" },
        "user": {
          "description": "用户标识。匿名玩家用 anonId；登录后带 userId。",
          "type": "object",
          "additionalProperties": false,
          "properties": {
            "userId": { "type": "string" },
            "anonId": { "description": "纯客户端生成的稳定匿名 ID（localStorage 持久化；身份不可信，防伪造/刷量由聚合侧按 anonId/IP 异常剔除兜底——2026-06-10 鉴权拍板 §9-7=B，取代旧'匿名 token 派生'机制）", "type": "string" }
          }
        },
        "context": {
          "description": "上下文",
          "type": "object",
          "additionalProperties": true,
          "properties": {
            "gameId": { "type": "string" },
            "versionId": { "type": "string" },
            "channel": { "description": "渠道归因（utm/channel 解析）", "type": "string" },
            "deviceType": { "type": "string", "enum": ["mobile", "desktop", "miniapp"] }
          }
        },
        "props": { "description": "事件私有字段（结构见对应 eventRegistry 项）", "type": "object" }
      }
    },
    "eventRegistry": {
      "description": "v1 核心事件登记表。值为该事件 props 的字段说明。覆盖：创作漏斗 / 消费漏斗 / 互动 / 广告 / 变现 / 性能。",
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "create_start":       { "description": "创作会话开始", "type": "object" },
        "generate_submit":    { "description": "提交生成。props: template_id, prompt_hash", "type": "object" },
        "generate_succeeded": { "description": "生成成功。props: task_id, duration_ms（用于 ≥80% 成功率统计）", "type": "object" },
        "generate_failed":    { "description": "生成失败。props: task_id, reason_code（失败原因分类）", "type": "object" },
        "preview_play":       { "description": "预览试玩", "type": "object" },
        "publish_submit":     { "description": "提交发布审核", "type": "object" },
        "feed_view":          { "description": "进入游戏流", "type": "object" },
        "user_login":         { "description": "登录成功后前端补发（匿名↔登录身份衔接，2026-06-10 鉴权件）。envelope.user 双带 userId+anonId，把此前匿名 anonId 与登录 userId 关联，消除 1001/1 错位", "type": "object" },
        "game_impression":    { "description": "游戏卡片曝光（首屏封面）。feed 排序信号", "type": "object" },
        "game_load_failed":   { "description": "加载失败（超时5s跳过触发）。props: reason。降权信号", "type": "object" },
        "game_play_start":    { "description": "试玩开始", "type": "object" },
        "game_play_end":      { "description": "试玩结束。props: duration_ms, completed（完玩）。quality_score 输入", "type": "object" },
        "like":               { "description": "点赞", "type": "object" },
        "favorite":           { "description": "收藏", "type": "object" },
        "share":              { "description": "分享", "type": "object" },
        "report":             { "description": "举报。props: reason。举报阈值降权信号", "type": "object" },
        "ad_impression":      { "description": "广告展示上报。props: slot_id, provider", "type": "object" },
        "ad_reward":          { "description": "激励视频完成。props: slot_id", "type": "object" },
        "income_settled":     { "description": "收益归集（T+1）。props: amount, source", "type": "object" },
        "perf_first_screen":  { "description": "首屏加载耗时埋点（P75<3s 验收）。props: ms", "type": "object" }
      }
    }
  }
}