import type { Kysely } from "kysely";
import { dropTables, entityTable, execDdl } from "../src/migration-helpers.ts";

// W5-A 文件管理(docs/runbook/files.md):
// - trash_item:删除进回收站的记录(原根/原相对路径/回收站内路径/到期时间/关联资产快照);
//   还原或清除后删行(历史留在 audit_event)。root_id 为文件管理的根 id(lib:<uuid> / dl:<uuid>:<n>)。
// - artifact_files_idem_key:文件管理写操作的幂等键(artifact title='files_idem',content.key)唯一。

// biome-ignore lint/suspicious/noExplicitAny: 迁移不依赖应用表类型
export async function up(db: Kysely<any>): Promise<void> {
  await execDdl(
    db,
    `
${entityTable(
  "trash_item",
  `
  root_id text not null,
  library_root_id uuid references library_root (id) on delete set null,
  root_host_path text not null,
  original_path text not null,
  trash_path text not null,
  is_dir boolean not null default false,
  size_bytes bigint not null default 0,
  actor text,
  deleted_at timestamptz not null default now(),
  expires_at timestamptz not null,
  asset_snapshot jsonb,
  constraint trash_item_trash_path_key unique (trash_path)`,
)}
create index trash_item_expires_idx on trash_item (expires_at);
create index trash_item_root_idx on trash_item (root_id, deleted_at desc);

create unique index artifact_files_idem_key on artifact ((content->>'key')) where title = 'files_idem';
`,
  );
}

// biome-ignore lint/suspicious/noExplicitAny: 同上
export async function down(db: Kysely<any>): Promise<void> {
  await execDdl(db, `drop index if exists artifact_files_idem_key;\n${dropTables(["trash_item"])}`);
}