import { readFileSync } from "node:fs";
import { describe, expect, it } from "vitest";
import type { z } from "zod";
import * as C from "../src/index.ts";

// 与 packages/db/src/types.ts(从迁移反射生成)做文本级对照:
// 1) 每张表的列 ⇔ 对应 Row schema 的字段(camelCase),只允许显式列出的差异;
// 2) 每个 CHECK 枚举 ⇔ contracts 中对应 z.enum 的取值。
// 只读文件,不引入 @umt/db 依赖。

const typesSrc = readFileSync(new URL("../../db/src/types.ts", import.meta.url), "utf8");

const camel = (s: string) => s.replace(/_([a-z0-9])/g, (_, c: string) => c.toUpperCase());

function tableColumns(): Map<string, string[]> {
  const out = new Map<string, string[]>();
  for (const m of typesSrc.matchAll(/export interface (\w+)Table \{\n([\s\S]*?)\n\}/g)) {
    const cols = [...m[2]!.matchAll(/^ {2}(\w+):/gm)].map((x) => x[1]!);
    out.set(m[1]!, cols);
  }
  return out;
}

function enumAliases(): Map<string, string[]> {
  const out = new Map<string, string[]>();
  for (const m of typesSrc.matchAll(/export type (\w+) =([^;]+);/g)) {
    if (m[1] === "Timestamptz" || m[1] === "Json" || m[2]!.includes("<")) continue;
    out.set(
      m[1]!,
      [...m[2]!.matchAll(/"([^"]*)"/g)].map((x) => x[1]!),
    );
  }
  return out;
}

type Obj = z.ZodObject;

/** 表(PascalCase)→ Row schema 与允许的差异 */
const ROWS: Record<string, { row: Obj; dbOnly?: string[]; apiOnly?: string[] }> = {
  AcquisitionPlan: { row: C.AcquisitionPlan },
  AcquisitionSlot: { row: C.AcquisitionSlot },
  AgentRun: { row: C.AgentRun },
  AgentRunEvent: { row: C.AgentRunEventRow },
  ApiKey: { row: C.ApiKey, dbOnly: ["keyHash"] },
  Approval: { row: C.Approval },
  Artifact: { row: C.Artifact },
  AssetLocation: { row: C.AssetLocation },
  AssetOperation: { row: C.AssetOperation },
  AssetUnitCoverage: { row: C.AssetUnitCoverage },
  AuditEvent: { row: C.AuditEvent },
  AutomationGrant: { row: C.AutomationGrant },
  ContentUnit: { row: C.ContentUnit },
  Decision: { row: C.Decision },
  DownloadTask: { row: C.DownloadTask },
  DownloaderInstance: { row: C.DownloaderInstance },
  ExternalIdentity: { row: C.ExternalIdentity },
  FeedSource: { row: C.FeedSource },
  IdentityRevision: { row: C.IdentityRevision },
  LibraryRoot: { row: C.LibraryRoot },
  MediaAsset: { row: C.MediaAsset },
  MediaEntity: { row: C.MediaEntity },
  MediaServerInstance: { row: C.MediaServerInstance },
  Observation: { row: C.Observation },
  OrganizationFileResult: { row: C.OrganizationFileResult },
  OrganizationRecord: { row: C.OrganizationRecord, dbOnly: ["changeXid"] },
  OutboxEvent: { row: C.OutboxEvent },
  PathBinding: { row: C.PathBinding },
  PathMapping: { row: C.PathMapping },
  PolicyRevision: { row: C.PolicyRevision },
  PreferenceSuppression: { row: C.PreferenceSuppression },
  PreferenceTag: { row: C.PreferenceTag },
  ReconcileRun: { row: C.ReconcileRun },
  Secret: { row: C.Secret, dbOnly: ["ciphertext", "nonce", "authTag"] },
  ServerMapping: { row: C.ServerMapping },
  Settings: { row: C.SettingEntry },
  Site: { row: C.Site },
  SiteAccount: { row: C.SiteAccount },
  SourceRelease: { row: C.SourceRelease },
  Subscription: { row: C.Subscription },
  Task: { row: C.Task },
  TitleAlias: { row: C.TitleAlias },
};

/** 引擎自有表(@umt/tasks 内部使用,不经 API 暴露),不要求 Row schema */
const INTERNAL_TABLES = [
  "TasksRunMeta",
  "TasksFact",
  "TasksOpLedger",
  // W2-A 登录门禁与 SSE 总线的服务端内部表:经 contracts/auth.ts 的专用 DTO 暴露,不做 Row 对照
  "AdminUser",
  "AdminSession",
  "LoginAttempt",
  "SseEvent",
];
const INTERNAL_ENUMS = ["TasksOpLedgerStatus"];

/** DB 枚举类型名 → contracts 枚举 */
const ENUMS: Record<string, z.ZodEnum> = {
  AcquisitionPlanPurpose: C.PlanPurpose,
  AcquisitionPlanStatus: C.PlanStatus,
  AcquisitionPlanPriority: C.AcquisitionPriority,
  AcquisitionSlotStatus: C.SlotStatus,
  AgentRunTrigger: C.AgentTrigger,
  AgentRunStatus: C.AgentRunStatus,
  AgentRunEventType: C.AgentRunEventType,
  ApprovalStatus: C.ApprovalStatus,
  ArtifactKind: C.ArtifactKind,
  AssetLocationLocationKind: C.LocationKind,
  AssetLocationStatus: C.LocationStatus,
  AssetOperationPhase: C.OperationPhase,
  AssetOperationKind: C.OperationKind,
  AssetOperationStatus: C.OperationStatus,
  AssetUnitCoverageCoverage: C.CoverageKind,
  AssetUnitCoverageSegment: C.Segment,
  AutomationGrantStatus: C.GrantStatus,
  ContentUnitKind: C.ContentUnitKind,
  ContentUnitContentType: C.ContentType,
  ContentUnitSegment: C.Segment,
  ContentUnitStatus: C.ContentUnitStatus,
  DecisionKind: C.DecisionKind,
  DecisionStatus: C.DecisionStatus,
  DecisionSeverity: C.Severity,
  DownloadTaskOrigin: C.DownloadOrigin,
  DownloadTaskStatus: C.DownloadStatus,
  DownloadTaskPauseReason: C.PauseReason,
  DownloaderInstanceKind: C.DownloaderKind,
  DownloaderInstanceHealthStatus: C.InstanceHealth,
  ExternalIdentityEntityType: C.ExternalEntityType,
  ExternalIdentityStatus: C.IdentityStatus,
  ExternalIdentityEvidenceLevel: C.EvidenceLevel,
  ExternalIdentityVerifyStatus: C.IdentityVerifyStatus,
  FeedSourcePurpose: C.FeedPurpose,
  FeedSourceKind: C.FeedKind,
  FeedSourceHealthStatus: C.FeedHealth,
  IdentityRevisionAction: C.IdentityRevisionAction,
  IdentityRevisionFromStatus: C.IdentityStatus,
  IdentityRevisionToStatus: C.IdentityStatus,
  IdentityRevisionActorType: C.ActorType,
  LibraryRootMediaKind: C.LibraryMediaKind,
  LibraryRootManagementMode: C.ManagementMode,
  LibraryRootHealthStatus: C.InstanceHealth,
  MediaAssetKind: C.AssetKind,
  MediaAssetStatus: C.AssetStatus,
  MediaEntityKind: C.MediaKind,
  MediaEntityStatus: C.MediaEntityStatus,
  MediaServerInstanceKind: C.MediaServerKind,
  MediaServerInstanceHealthStatus: C.InstanceHealth,
  ObservationStatus: C.ObservationStatus,
  OrganizationFileResultRole: C.FileRole,
  OrganizationFileResultMode: C.OrganizationAction,
  OrganizationFileResultStatus: C.FileResultStatus,
  OrganizationRecordTrigger: C.OrganizationTrigger,
  OrganizationRecordActorType: C.ActorType,
  OrganizationRecordSourcePathView: C.SourcePathView,
  OrganizationRecordAction: C.OrganizationAction,
  OrganizationRecordStatus: C.OrganizationStatus,
  OutboxEventStatus: C.OutboxStatus,
  PathBindingBindingKind: C.BindingKind,
  PathBindingStatus: C.BindingStatus,
  PathMappingViewKind: C.PathViewKind,
  PathMappingVerifyStatus: C.PathMappingVerifyStatus,
  PolicyRevisionKind: C.PolicyKind,
  PolicyRevisionStatus: C.PolicyStatus,
  PreferenceTagKind: C.PreferenceKind,
  PreferenceTagOrigin: C.PreferenceOrigin,
  PreferenceTagStatus: C.PreferenceStatus,
  ReconcileRunKind: C.ReconcileKind,
  ReconcileRunMode: C.ReconcileMode,
  ReconcileRunStatus: C.ReconcileStatus,
  SecretPurpose: C.SecretPurpose,
  ServerMappingItemType: C.ServerItemType,
  ServerMappingMatchStatus: C.ServerMatchStatus,
  SiteAdapter: C.SiteAdapter,
  SiteHealthStatus: C.SiteHealth,
  SiteCircuitState: C.CircuitState,
  SiteAccountAuthKind: C.SiteAuthKind,
  SiteAccountStatus: C.SiteAccountStatus,
  SourceReleaseResolutionStatus: C.ResolutionStatus,
  SourceReleaseAvailability: C.ReleaseAvailability,
  SubscriptionMediaKind: C.SubscriptionMediaKind,
  SubscriptionMode: C.SubscriptionMode,
  SubscriptionSeasonScope: C.SeasonScope,
  SubscriptionOrigin: C.SubscriptionOrigin,
  SubscriptionPriority: C.AcquisitionPriority,
  SubscriptionStatus: C.SubscriptionStatus,
  TaskStatus: C.TaskStatus,
  TitleAliasKind: C.AliasKind,
  TitleAliasSource: C.AliasSource,
};

describe("contracts ⇔ db 表结构同步", () => {
  const tables = tableColumns();

  it("每张表都有 Row schema", () => {
    expect([...tables.keys()].filter((t) => !INTERNAL_TABLES.includes(t)).sort()).toEqual(Object.keys(ROWS).sort());
  });

  for (const [table, spec] of Object.entries(ROWS)) {
    it(`${table} 列与 Row 字段一致`, () => {
      const dbCols = (tables.get(table) ?? []).map(camel).filter((c) => !spec.dbOnly?.includes(c));
      const apiCols = Object.keys(spec.row.shape).filter((c) => !spec.apiOnly?.includes(c));
      expect(apiCols.sort()).toEqual(dbCols.sort());
    });
  }

  it("每个 DB 枚举都有对应 contracts 枚举且取值一致", () => {
    const aliases = enumAliases();
    for (const internal of INTERNAL_ENUMS) aliases.delete(internal);
    expect([...aliases.keys()].sort()).toEqual(Object.keys(ENUMS).sort());
    for (const [name, values] of aliases) {
      expect(ENUMS[name]!.options, name).toEqual(values);
    }
  });
});