/**
 * 巡检模块 - 前端 API 层
 *
 * 通过 window.electronAPI.inspection 调用主进程的巡检 IPC handlers。
 */

// ---------- 类型定义 ----------

export type AlertLevel = "critical" | "warning" | "info";
export type DeviceTier = "core" | "aggregation" | "access";
export type InspectionStatus = "success" | "failed" | "timeout";
export type AlertRecordStatus = "active" | "acknowledged" | "resolved" | "closed";
export type Operator = ">" | "<" | "==" | "!=" | ">=" | "<=";

export interface InspectionLabels {
  alert_levels: Record<AlertLevel, string>;
  device_tiers: Record<DeviceTier, string>;
  inspection_status: Record<InspectionStatus, string>;
  alert_record_status: Record<AlertRecordStatus, string>;
  operators: Record<Operator, string>;
  device_catalog: Record<string, string>;
  metrics: Record<string, string>;
}

export interface DeviceCatalog {
  id: string;
  type_key: string;
  name: string;
  vendor: string;
  adapter_class: string;
  supported_metrics: string[];
  default_thresholds: AlertRule[];
  default_interval: number;
  description: string;
  preset: boolean;
}

export interface DeviceTierInfo {
  key: DeviceTier;
  label: string;
  default_interval: number;
}

export interface DeviceExtension {
  host_id: string;
  /** 主机名（IP 或域名），用于调度器匹配 vault SSH 配置 */
  hostname?: string | null;
  catalog_id: string;
  tier: DeviceTier | null;
  inspection_interval: number | null;
  inspection_enabled: boolean;
  custom_thresholds: AlertRule[];
  inspection_tags: string[];
  last_scan_at: number | null;
  last_scan_status: InspectionStatus | null;
  last_scan_error: string | null;
  created_at: number;
  updated_at: number;
  effective_interval?: number;
}

export interface AlertRule {
  id: string;
  name: string;
  metric: string;
  operator: Operator;
  threshold: string;
  level: AlertLevel;
  duration: number;
  scope_type: "all" | "tier" | "device" | "catalog";
  scope_value: string | string[] | null;
  enabled: boolean;
  preset?: boolean;
  created_at: number;
  updated_at: number;
}

export interface InspectionResult {
  id: string;
  job_id: string | null;
  device_id: string;
  timestamp: number;
  online: boolean;
  status: InspectionStatus;
  duration_ms: number;
  metrics: Record<string, any>;
  alerts: any[];
  error_message: string | null;
}

export interface AlertRecord {
  id: string;
  rule_id: string;
  rule_name: string;
  device_id: string;
  device_name: string;
  metric: string;
  metric_value: string;
  threshold: string;
  level: AlertLevel;
  message: string;
  triggered_at: number;
  status: AlertRecordStatus;
  acknowledged_by: string | null;
  acknowledged_at: number | null;
  resolved_at: number | null;
  resolved_reason: string | null;
  note: string | null;
}

export interface AlertStats {
  total: number;
  active: number;
  active_critical: number;
  active_warning: number;
  active_info: number;
  acknowledged: number;
  resolved: number;
  closed: number;
}

export interface SchedulerStatus {
  running: boolean;
  queue_size: number;
  active_scans: number;
  concurrency: number;
}

// ---------- API 调用 ----------

const api = (window as any).netcatty?.inspection;

function isAvailable(): boolean {
  return !!api;
}

function invoke(name: string, ...args: any[]): Promise<any> {
  if (!api || typeof api[name] !== "function") {
    console.warn(`[Inspection] api.${name} 不可用`);
    return Promise.resolve(null);
  }
  return api[name](...args);
}

// ---------- 标签 ----------
export const inspectionLabelsApi = {
  isAvailable,
  getLabels: (): Promise<InspectionLabels> => invoke("getLabels"),
};

// ---------- 系统配置 ----------
export const inspectionSysConfigApi = {
  get: (): Promise<Record<string, any>> => invoke("getSysConfig"),
  update: (updates: Record<string, any>) => invoke("updateSysConfig", updates),
};

// ---------- 设备类型 ----------
export const inspectionCatalogApi = {
  list: (): Promise<DeviceCatalog[]> => invoke("getCatalog"),
  getTiers: (): Promise<DeviceTierInfo[]> => invoke("getTiers"),
  getAdapters: (): Promise<string[]> => invoke("getAdapters"),
};

// ---------- 设备扩展 ----------
export const inspectionDeviceApi = {
  getAll: (): Promise<Record<string, DeviceExtension>> => invoke("getAllExtensions"),
  get: (hostId: string): Promise<DeviceExtension | null> => invoke("getExtension", hostId),
  upsert: (hostId: string, data: Partial<DeviceExtension>): Promise<DeviceExtension> =>
    invoke("upsertExtension", hostId, data),
  remove: (hostId: string): Promise<boolean> => invoke("deleteExtension", hostId),
  getEffectiveInterval: (hostId: string): Promise<number> =>
    invoke("getEffectiveInterval", hostId),
  getEnabled: (): Promise<DeviceExtension[]> => invoke("getEnabledDevices"),
};

// ---------- 告警规则 ----------
export const inspectionAlertRuleApi = {
  list: (): Promise<AlertRule[]> => invoke("listRules"),
  get: (ruleId: string): Promise<AlertRule | null> => invoke("getRule", ruleId),
  create: (data: Partial<AlertRule>): Promise<AlertRule> => invoke("createRule", data),
  update: (ruleId: string, updates: Partial<AlertRule>): Promise<AlertRule | null> =>
    invoke("updateRule", ruleId, updates),
  remove: (ruleId: string): Promise<boolean> => invoke("deleteRule", ruleId),
  toggle: (ruleId: string, enabled: boolean): Promise<AlertRule | null> =>
    invoke("toggleRule", ruleId, enabled),
};

// ---------- 巡检结果 ----------
export const inspectionResultApi = {
  getLatestAll: (): Promise<InspectionResult[]> => invoke("getLatestAll"),
  getLatestByDevice: (hostId: string, limit = 20): Promise<InspectionResult[]> =>
    invoke("getLatestByDevice", hostId, limit),
  getRecent: (limit = 50): Promise<InspectionResult[]> =>
    invoke("getRecentResults", limit),
};

// ---------- 告警记录 ----------
export const inspectionAlertApi = {
  list: (options?: {
    status?: AlertRecordStatus;
    level?: AlertLevel;
    device_id?: string;
    limit?: number;
  }): Promise<AlertRecord[]> => invoke("listAlerts", options),
  getActive: (): Promise<AlertRecord[]> => invoke("getActiveAlerts"),
  getStats: (): Promise<AlertStats> => invoke("getAlertStats"),
  acknowledge: (alertId: string, operator = "system"): Promise<AlertRecord | null> =>
    invoke("acknowledgeAlert", alertId, operator),
  resolve: (
    alertId: string,
    reason = "manual",
    operator = "system",
  ): Promise<AlertRecord | null> =>
    invoke("resolveAlert", alertId, reason, operator),
  close: (alertId: string, note = ""): Promise<AlertRecord | null> =>
    invoke("closeAlert", alertId, note),
  updateNote: (alertId: string, note: string): Promise<AlertRecord | null> =>
    invoke("updateAlertNote", alertId, note),
};

// ---------- 调度器 ----------
// SSHConfig 是用于 SSH 连接的主机配置（hostname/port/username/password/privateKey 等）
export type SshHostConfig = Record<string, unknown>;

export const inspectionSchedulerApi = {
  start: (hostConfigs?: Record<string, SshHostConfig>): Promise<SchedulerStatus> =>
    invoke("schedulerStart", hostConfigs ? { hostConfigs } : {}),
  stop: (): Promise<SchedulerStatus> => invoke("schedulerStop"),
  status: (): Promise<SchedulerStatus> => invoke("schedulerStatus"),
  scanNow: (hostId: string): Promise<any> => invoke("scanNow", hostId),
  scanAllNow: (): Promise<any> => invoke("scanAllNow"),
};

// ---------- 单次巡检执行 ----------
export interface RunInspectionResult {
  success: boolean;
  status: string;
  metrics: Record<string, any>;
  error: string | null;
  duration: number;
  alerts: any[];
}

export interface HostConfigForInspection {
  id: string;
  label?: string;
  hostname: string;
  port?: number;
  username: string;
  password?: string;
  privateKeyContent?: string;
  passphrase?: string;
}

export const inspectionExecApi = {
  /**
   * 执行一次完整巡检（前端传入完整主机配置）
   * @param hostId 主机 ID
   * @param hostConfig 主机连接配置
   * @param catalogId 设备类型 ID（采集器 ID）
   */
  runInspection: (
    hostId: string,
    hostConfig: HostConfigForInspection,
    catalogId: string
  ): Promise<RunInspectionResult> =>
    invoke("runInspection", { hostId, hostConfig, catalogId }),
};

// =============== 巡检报告快照 ===============

export interface ReportCmdResult {
  cmd: string;
  purpose: string;
  ok: boolean;
  duration_ms: number;
  stdout: string;
  stderr: string;
}

export interface ReportDeviceResult {
  device_id: string;
  hostname: string;
  catalog_id: string;
  ok: boolean;
  duration_ms: number;
  commands: ReportCmdResult[];
}

export interface ReportSnapshot {
  id: string;
  timestamp: number;
  duration_ms: number;
  trigger: "manual" | "scheduled";
  devices: ReportDeviceResult[];
  /** AI 汇总结果（主进程自动生成后持久化到 JSON） */
  ai_summary?: any;
  /** AI 汇总生成状态：running / done / failed */
  ai_summary_status?: "running" | "done" | "failed";
  /** AI 汇总失败时的错误信息 */
  ai_summary_error?: string;
  /** AI 汇总完成时间戳 */
  ai_summary_updated_at?: number;
}

export interface ReportDeviceTarget {
  device_id: string;
  hostname: string;
  port?: number;
  username: string;
  password?: string;
  privateKeyContent?: string;
  passphrase?: string;
  catalog_id?: string;
}

export interface RunReportSnapshotResult {
  ok: boolean;
  snapshot?: ReportSnapshot;
  error?: string;
}

/** 从 renderer localStorage 读报告产品名（优先报告专用 key，fallback 通用产品名）
 * 注意：useStoredString 的 writeString 直接存纯字符串，不 JSON.stringify，
 * 所以这里不能 JSON.parse，直接判断值类型即可。 */
function _getReportSystemName(): string | undefined {
  try {
    const reportRaw = localStorage.getItem("netcatty_report_product_name_v1");
    if (typeof reportRaw === "string" && reportRaw.trim()) return reportRaw.trim();
    const productRaw = localStorage.getItem("netcatty_product_name_v1");
    if (typeof productRaw === "string" && productRaw.trim()) return productRaw.trim();
  } catch (_) {}
  return undefined;
}

export const inspectionReportApi = {
  /**
   * 跑一次巡检报告快照 —— 所有 deviceTargets 独立 SSH 连设备执行各自 catalog 的命令组
   */
  runSnapshot: (
    deviceTargets: ReportDeviceTarget[],
    trigger: "manual" | "scheduled" = "manual"
  ): Promise<RunReportSnapshotResult> =>
    invoke("runReportSnapshot", { deviceTargets, trigger }),

  /** 查询主进程当前是否有快照正在执行（页面切换后查状态用） */
  isSnapshotRunning: (): Promise<{ running: boolean }> =>
    invoke("isReportSnapshotRunning"),

  /**
   * 列出最近 N 条快照（新的在前）
   */
  listSnapshots: (limit = 50): Promise<ReportSnapshot[]> =>
    invoke("listReportSnapshots", limit),

  /**
   * 删除一条快照
   */
  deleteSnapshot: (id: string): Promise<boolean> =>
    invoke("deleteReportSnapshot", id),

  /**
   * 清空所有快照
   */
  clearSnapshots: (): Promise<{ ok: boolean }> =>
    invoke("clearReportSnapshots"),

  /**
   * 导出快照 PDF
   * @param options.snapshotId 快照 ID
   * @param options.aiSummary 可选 AI 汇总（有则 PDF 含 AI 分析）
   * @param options.customPath 可选用户指定保存路径（下载按钮用）
   */
  exportSnapshotPdf: (options: {
    snapshotId: string;
    aiSummary?: any;
    customPath?: string;
  }): Promise<{ ok: boolean; filePath?: string; error?: string }> =>
    invoke("exportReportSnapshotPdf", { ...options, systemName: _getReportSystemName() }),

  /** 内嵌预览（Electron BrowserWindow + 内置 PDF viewer） */
  previewSnapshotPdf: (snapshotId: string): Promise<{ ok: boolean; filePath?: string; error?: string }> =>
    invoke("previewReportSnapshotPdf", { snapshotId, systemName: _getReportSystemName() }),

  /** 保存 AI 汇总到快照（持久化，切换页面不丢） */
  saveAiSummary: (snapshotId: string, aiSummary: any): Promise<{ ok: boolean }> =>
    invoke("saveReportAiSummary", { snapshotId, aiSummary }),

  /** 清空快照的 AI 汇总（用于重试前） */
  clearAiSummary: (snapshotId: string): Promise<{ ok: boolean }> =>
    invoke("clearReportAiSummary", { snapshotId }),

  /** 主进程执行 AI 汇总 —— 独立进程，页面切换不影响 */
  runAiSummary: (snapshotId: string, providerId?: string): Promise<{ ok: boolean }> =>
    invoke("runReportAiSummary", snapshotId, providerId),
};

// =============== 巡检报告调度配置 ===============

export interface ReportSchedule {
  enabled: boolean;
  defaultIntervalHours: number;
  dailyReportTime: string;            // "HH:MM"
  enabledDeviceIds: string[] | null;   // null=全部；[]=一个都不选；[id1]=指定
  perDeviceInterval: Record<string, number>;
  aiSummaryEnabled: boolean;
}

export const inspectionReportScheduleApi = {
  get: (): Promise<ReportSchedule> => invoke("getReportSchedule"),
  save: (config: Partial<ReportSchedule>): Promise<ReportSchedule> =>
    invoke("saveReportSchedule", config),
  toggleScheduler: (enabled: boolean): Promise<{ ok: boolean; running: boolean }> =>
    invoke("toggleReportScheduler", enabled),
  status: (): Promise<{ running: boolean; schedule: ReportSchedule }> =>
    invoke("reportSchedulerStatus"),
};

// =============== 日运行报告 ===============

export interface DailyReportSummary {
  snapshotCount: number;
  deviceCount: number;
  totalCmds: number;
  okCmds: number;
  failCmds: number;
  failRate: number;
  deviceSuccessRate: Record<string, number>;
  topFailedCommands: Array<{ device_id: string; cmd: string; count: number }>;
}

export interface DailyReport {
  id: string;
  date: string;             // "YYYY-MM-DD"
  mode: "provisional" | "finalized";
  timestamp: number;
  trigger: "manual" | "scheduled";
  period: { start_ts: number; end_ts: number };
  summary: DailyReportSummary;
  aiSummary: any | null;
}

export const inspectionDailyReportApi = {
  list: (limit = 30): Promise<DailyReport[]> => invoke("listDailyReports", limit),
  generate: (options?: {
    mode?: "provisional" | "finalized";
    trigger?: "manual" | "scheduled";
  }): Promise<{ ok: boolean; report?: DailyReport; error?: string }> =>
    invoke("generateDailyReport", options || {}),
  delete: (id: string): Promise<boolean> => invoke("deleteDailyReport", id),
  clear: (): Promise<{ ok: boolean }> => invoke("clearDailyReports"),
  exportPdf: (reportId: string): Promise<{ ok: boolean; filePath?: string; error?: string }> =>
    invoke("exportDailyReportPdf", { reportId, systemName: _getReportSystemName() }),
  /** 内嵌预览（Electron BrowserWindow + 内置 PDF viewer） */
  previewPdf: (reportId: string): Promise<{ ok: boolean; filePath?: string; error?: string }> =>
    invoke("previewDailyReportPdf", { reportId, systemName: _getReportSystemName() }),
};

export const inspectionSnapshotExportApi = {
  exportPdf: (snapshotId: string, aiSummary?: any): Promise<{ ok: boolean; filePath?: string; error?: string }> =>
    invoke("exportReportSnapshotPdf", aiSummary ? { snapshotId, aiSummary } : snapshotId),
};