import {
  CAPABILITY_CATALOG,
  type EngineBusinessKind,
  type KnownCapabilityId,
  type LogEntry,
  type LogLevel,
  type LogType,
} from "@umt/contracts";
import type { StatusTone } from "~/components/console/status-badge.tsx";
import { BUSINESS_KIND_LABEL, workflowLabel } from "~/components/tasks/labels.ts";
import { actorTypeLabel } from "~/lib/labels.ts";
import { formatDateTime } from "~/lib/utils.ts";

// 日志页的标签与纯函数(界面第二轮 V 线):类型、级别、审计动作、标题 / 摘要、筛选参数、给智能体的上下文。

export const LOG_PATH = "/console/logs";

export const LOG_TYPE_LABEL: Record<LogType, string> = {
  task: "任务",
  auto: "定时与自动",
  auth: "登录",
  audit: "审计",
};
export const LOG_TYPES = Object.keys(LOG_TYPE_LABEL) as LogType[];

export const LOG_LEVEL: Record<LogLevel, { label: string; tone: StatusTone }> = {
  running: { label: "进行中", tone: "neutral" },
  success: { label: "成功", tone: "success" },
  info: { label: "信息", tone: "neutral" },
  warn: { label: "警告", tone: "warning" },
  error: { label: "失败", tone: "destructive" },
};
export const LOG_LEVELS = Object.keys(LOG_LEVEL) as LogLevel[];

/** 时间范围预设 → 毫秒 */
export const LOG_SINCE: { value: string; label: string; ms: number }[] = [
  { value: "1h", label: "1 小时内", ms: 3600_000 },
  { value: "24h", label: "24 小时内", ms: 86400_000 },
  { value: "7d", label: "7 天内", ms: 7 * 86400_000 },
  { value: "30d", label: "30 天内", ms: 30 * 86400_000 },
];

// ── 审计动作(原审计页) ──

const ACTION_LABEL: Record<string, string> = {
  "admin.setup": "初始化管理员",
  "admin.login_success": "登录",
  "admin.login_failed": "登录失败",
  "admin.logout": "退出登录",
  "admin.password_change": "修改密码",
  "admin.totp_enable": "启用二次验证",
  "admin.totp_disable": "停用二次验证",
  "admin.recovery_codes_regenerate": "重新生成恢复码",
  "admin.recovery_code_login": "用恢复码登录",
  "admin.passkey_register": "登记 Passkey",
  "admin.passkey_rename": "重命名 Passkey",
  "admin.passkey_remove": "删除 Passkey",
  "admin.passkey_login": "用 Passkey 登录",
  "api_key.create": "创建 API Key",
  "api_key.update": "修改 API Key",
  "api_key.revoke": "撤销 API Key",
  "settings.update": "修改设置",
  "secret.create": "新建凭证",
  "secret.rotate": "轮换凭证",
  "secret.delete": "删除凭证",
  "secret.master_key_rotate": "轮换主密钥",
  "site_account.credentials_set": "录入站点凭证",
  "engine.run_cancel": "取消任务",
  "engine.run_retry": "重跑任务",
  "pi_upstream.oauth_start": "开始订阅登录",
  "pi_upstream.oauth_login": "完成订阅登录",
  "pi_upstream.oauth_logout": "退出订阅登录",
  "schedule.run_now": "立即执行定时任务",
  "schedule.skip": "跳过定时任务",
  "schedule.update": "修改定时任务",
  "storage.cleanup": "立即清理存储",
  "acquisition_plan.manual_submit": "手动提交下载",
  "acquisition_plan.cancel": "取消下载",
  "capability.invoke": "智能体操作",
  "capability.denied": "智能体操作被拒绝",
  "site.created": "登记站点",
  "site.updated": "修改站点",
  "feed_source.created": "新建 RSS",
  "identity.release_assigned": "指定资源身份",
  "files.mkdir": "新建目录",
  "files.rename": "重命名",
  "files.move": "移动文件",
  "files.copy": "复制文件",
  "files.organize": "整理文件",
  "files.delete": "删除文件",
  "files.trash_restore": "从回收站还原",
};
const VERB: Record<string, string> = { create: "新建", update: "修改", delete: "删除", test: "测试", verify: "校验" };
const NOUN: Record<string, string> = {
  library_root: "媒体库目录",
  downloader_instance: "下载器",
  media_server_instance: "媒体服务器",
  path_mapping: "路径映射",
  storage_instance: "存储",
  pi_upstream: "模型服务",
  schedule: "定时任务",
  automation_grant: "持续授权",
};
export const TARGET_LABEL: Record<string, string> = {
  ...NOUN,
  admin_user: "管理员",
  admin_session: "登录会话",
  api_key: "API Key",
  settings: "设置",
  secret: "凭证",
  site: "站点",
  site_account: "站点账号",
  feed_source: "RSS",
  engine_run: "任务",
  scheduled_job: "定时任务",
  agent_run: "智能体会话",
  acquisition_plan: "下载",
  download_task: "下载任务",
  media_entity: "作品",
  source_release: "资源",
  organization_record: "整理记录",
  subscription: "订阅",
  decision: "事项",
  file: "文件",
  capability: "能力",
};

export function actionLabel(a: string): string {
  if (ACTION_LABEL[a]) return ACTION_LABEL[a];
  const [noun, verb] = a.split(".");
  if (noun && verb && NOUN[noun] && VERB[verb]) return `${VERB[verb]}${NOUN[noun]}`;
  return a;
}

/** 对象文字:有展示名用展示名;能力显示中文名;其余显示对象类型 */
export function objectText(o: LogEntry["object"]): string | null {
  if (!o) return null;
  if (o.label) return o.label;
  if (o.type === "capability" && o.id) return CAPABILITY_CATALOG[o.id as KnownCapabilityId]?.title ?? o.id;
  return TARGET_LABEL[o.type] ?? o.type;
}

// ── 标题、摘要、状态 ──

const SCHEDULE_STATUS: Record<string, { label: string; tone: StatusTone }> = {
  ok: { label: "成功", tone: "success" },
  failed: { label: "失败", tone: "destructive" },
  skipped: { label: "已跳过", tone: "neutral" },
  running: { label: "进行中", tone: "neutral" },
};
const AGENT_STATUS: Record<string, { label: string; tone: StatusTone }> = {
  queued: { label: "排队", tone: "neutral" },
  waiting: { label: "等待", tone: "neutral" },
  cancelled: { label: "已停止", tone: "warning" },
  budget_exceeded: { label: "超出预算", tone: "warning" },
};
const ENGINE_STATUS: Record<string, { label: string; tone: StatusTone }> = {
  pending: { label: "排队", tone: "neutral" },
  canceled: { label: "已取消", tone: "warning" },
};

/** 行上的状态徽章:来源有更具体的说法时用来源的(已跳过、已取消、超出预算),否则用级别 */
export function logBadge(e: Pick<LogEntry, "source" | "status" | "level" | "extra">): {
  label: string;
  tone: StatusTone;
} {
  const s = e.status ?? "";
  if (e.source === "schedule_run") {
    const agent = typeof e.extra.agentStatus === "string" ? AGENT_STATUS[e.extra.agentStatus] : undefined;
    return agent ?? SCHEDULE_STATUS[s] ?? LOG_LEVEL[e.level];
  }
  if (e.source === "agent_run") return AGENT_STATUS[s] ?? LOG_LEVEL[e.level];
  if (e.source === "engine_run") {
    const outcome = typeof e.extra.outcome === "string" ? AGENT_STATUS[e.extra.outcome] : undefined;
    return (e.level === "warn" ? outcome : undefined) ?? ENGINE_STATUS[s] ?? LOG_LEVEL[e.level];
  }
  return LOG_LEVEL[e.level];
}

/** 一行标题:任务 = 业务对象名 > 业务类型 > 工作流做什么;审计 = 动作;其余用服务端标题 */
export function logTitle(e: LogEntry): string {
  if (e.source === "engine_run") {
    const x = e.extra as {
      businessTitle?: string | null;
      businessKind?: EngineBusinessKind | null;
      workflowName?: string;
    };
    if (x.businessTitle) return x.businessTitle;
    if (x.businessKind && BUSINESS_KIND_LABEL[x.businessKind]) return BUSINESS_KIND_LABEL[x.businessKind];
    return workflowLabel(x.workflowName ?? e.title);
  }
  if (e.source === "audit_event") return actionLabel(e.status ?? e.title);
  if (e.source === "agent_run") return firstLine(e.title);
  return e.title;
}

/** 第二行:任务的工作流(有业务标题时)、错误或摘要 */
export function logSubtitle(e: LogEntry): string | null {
  const parts: string[] = [];
  if (e.source === "engine_run" && (e.extra as { businessTitle?: string }).businessTitle)
    parts.push(workflowLabel(String(e.extra.workflowName ?? "")));
  if (e.source === "schedule_run" && e.extra.jobKind === "agent_check") parts.push("智能体巡检");
  if (e.source === "agent_run") parts.push("智能体后台调查");
  if (e.message) parts.push(firstLine(e.message));
  return parts.length ? parts.join(" · ") : null;
}

/** 操作者 / 触发来源 */
export function actorLabel(e: LogEntry): string | null {
  if (!e.actor) return null;
  if (e.source === "schedule_run")
    return e.actor.type === "manual" ? "手动" : e.actor.type === "skip" ? "跳过" : "定时";
  if (e.source === "agent_run") return "事件";
  return actorTypeLabel(e.actor.type);
}

function firstLine(s: string, max = 140): string {
  const line = s.split("\n").find((l) => l.trim()) ?? s;
  return line.length > max ? `${line.slice(0, max)}…` : line;
}

// ── 筛选参数(URL query) ──

export const LOG_FILTER_KEYS = ["type", "level", "since", "q", "objectType", "objectId", "system"] as const;
export type LogFilterKey = (typeof LOG_FILTER_KEYS)[number];
export type LogFilters = Record<LogFilterKey, string>;

/** 时间预设下界按分钟取整,查询 key 稳定 */
export function sinceToFrom(since: string, now = Date.now()): string | undefined {
  const ms = LOG_SINCE.find((s) => s.value === since)?.ms;
  return ms ? new Date(Math.floor((now - ms) / 60_000) * 60_000).toISOString() : undefined;
}

/** 日志页地址(其它页面链到日志用) */
export function logsPath(p: Partial<LogFilters> & { tab?: string; job?: string; log?: string } = {}): string {
  const q = new URLSearchParams();
  for (const [k, v] of Object.entries(p)) if (v) q.set(k, v);
  const s = q.toString();
  return s ? `${LOG_PATH}?${s}` : LOG_PATH;
}

/** 某个对象的全部日志 */
export const objectLogsPath = (type: string, id: string) => logsPath({ objectType: type, objectId: id });

// ── 给智能体的上下文 ──

const GOAL_MAX = 6000;

/** 一条日志的文字版(给智能体看,带 id 方便它查) */
export function logLine(e: LogEntry): string {
  const obj = e.object ? ` 对象 ${e.object.type}${e.object.id ? `=${e.object.id}` : ""}` : "";
  const msg = e.message ? ` · ${firstLine(e.message, 300)}` : "";
  return `- ${formatDateTime(e.at)} [${LOG_TYPE_LABEL[e.type]} / ${logBadge(e).label}] ${logTitle(e)}${msg}（${e.id}${obj}）`;
}

/** 选中的日志 → 问智能体的目标(按时间正序,超长截断) */
export function agentGoalFor(entries: LogEntry[]): string {
  const head =
    entries.length === 1
      ? "看看这条日志，说明发生了什么；有问题的话找出原因并给出处理建议。"
      : `看看这 ${entries.length} 条日志，说明发生了什么；有问题的话找出原因并给出处理建议。`;
  const lines: string[] = [];
  let size = head.length;
  const sorted = [...entries].sort((a, b) => Date.parse(a.at) - Date.parse(b.at));
  for (const e of sorted) {
    const l = logLine(e);
    if (size + l.length + 1 > GOAL_MAX) {
      lines.push(`- …另有 ${sorted.length - lines.length} 条未列出`);
      break;
    }
    lines.push(l);
    size += l.length + 1;
  }
  return `${head}\n${lines.join("\n")}`;
}

// ── 旧链接 ──

/** 旧任务页的 status / tab → 级别 */
export const RUN_STATUS_LEVEL: Record<string, LogLevel> = {
  pending: "running",
  running: "running",
  completed: "success",
  failed: "error",
  canceled: "warn",
};

/** 业务对象 kind → 日志对象类型(与服务端 BUSINESS_OBJECT_TYPE 一致) */
export const BUSINESS_OBJECT_TYPE: Record<string, string> = {
  download: "download_task",
  organization: "organization_record",
  agent: "agent_run",
  subscription: "subscription",
  feed: "feed_source",
  site: "site",
  decision: "decision",
  media: "media_entity",
  schedule: "scheduled_job",
};