// Plugin state store E2E tests cover persisted plugin state across runtime calls.

import { expectDefined } from "@openclaw/normalization-core";
import { afterEach, describe, expect, it, vi } from "vitest";
import { withOpenClawTestState } from "../test-utils/openclaw-test-state.js";
import {
  createPluginStateKeyedStore,
  createPluginStateSyncKeyedStore,
  resetPluginStateStoreForTests,
  sweepExpiredPluginStateEntries,
} from "./plugin-state-store.js";
import { closePluginStateDatabase } from "./plugin-state-store.sqlite.js";
import {
  probePluginStateStore,
  seedPluginStateEntriesForTests,
} from "./plugin-state-store.test-helpers.js";

afterEach(() => {
  vi.useRealTimers();
  resetPluginStateStoreForTests();
});

// ---------------------------------------------------------------------------
// Runtime smoke
// ---------------------------------------------------------------------------
describe("runtime smoke", () => {
  it("writes and reads a value", async () => {
    await withOpenClawTestState({ label: "e2e-smoke-rw" }, async () => {
      const store = createPluginStateKeyedStore<{ msg: string }>("fixture-plugin", {
        namespace: "data",
        maxEntries: 10,
      });
      await store.register("greeting", { msg: "hello" });
      await expect(store.lookup("greeting")).resolves.toEqual({ msg: "hello" });
    });
  });

  it("consumes a value exactly once", async () => {
    await withOpenClawTestState({ label: "e2e-smoke-consume" }, async () => {
      const store = createPluginStateKeyedStore<{ token: string }>("fixture-plugin", {
        namespace: "tokens",
        maxEntries: 10,
      });
      await store.register("one-shot", { token: "abc123" });

      const first = await store.consume("one-shot");
      expect(first).toEqual({ token: "abc123" });

      const second = await store.consume("one-shot");
      expect(second).toBeUndefined();

      await expect(store.lookup("one-shot")).resolves.toBeUndefined();
    });
  });
});

// ---------------------------------------------------------------------------
// Persistence
// ---------------------------------------------------------------------------
describe("persistence", () => {
  it("survives close and reopen of the store", async () => {
    await withOpenClawTestState({ label: "e2e-persist" }, async () => {
      const storeA = createPluginStateKeyedStore<{ persisted: boolean }>("fixture-plugin", {
        namespace: "durable",
        maxEntries: 10,
      });
      await storeA.register("key1", { persisted: true });
      await storeA.register("key2", { persisted: true });

      // Tear down the cached DB handle and option signatures – simulates
      // a full gateway restart while the on-disk DB survives.
      resetPluginStateStoreForTests();

      const storeB = createPluginStateKeyedStore<{ persisted: boolean }>("fixture-plugin", {
        namespace: "durable",
        maxEntries: 10,
      });
      await expect(storeB.lookup("key1")).resolves.toEqual({ persisted: true });
      await expect(storeB.lookup("key2")).resolves.toEqual({ persisted: true });
    });
  });
});

// ---------------------------------------------------------------------------
// TTL
// ---------------------------------------------------------------------------
describe("TTL", () => {
  it("hides expired values and sweep removes the row", async () => {
    await withOpenClawTestState({ label: "e2e-ttl" }, async () => {
      const store = createPluginStateKeyedStore<{ v: number }>("fixture-plugin", {
        namespace: "ttl-test",
        maxEntries: 10,
      });
      await store.register("short", { v: 1 }, { ttlMs: 24 * 60 * 60_000 });
      await store.register("long", { v: 2 }, { ttlMs: 48 * 60 * 60_000 });

      // Before expiry – both visible.
      await expect(store.lookup("short")).resolves.toEqual({ v: 1 });
      await expect(store.lookup("long")).resolves.toEqual({ v: 2 });

      seedPluginStateEntriesForTests([
        {
          pluginId: "fixture-plugin",
          namespace: "ttl-test",
          key: "short",
          value: { v: 1 },
          expiresAt: Date.now() - 1,
        },
      ]);

      // Expired value is invisible to reads.
      await expect(store.lookup("short")).resolves.toBeUndefined();
      await expect(store.lookup("long")).resolves.toEqual({ v: 2 });

      // Sweep physically removes the expired row.
      const swept = sweepExpiredPluginStateEntries();
      expect(swept).toBe(1);

      // After sweep the entry list contains only the long-lived record.
      const remaining = await store.entries();
      expect(remaining).toHaveLength(1);
      expect(expectDefined(remaining[0], "remaining[0] test invariant").key).toBe("long");
    });
  });
});

// ---------------------------------------------------------------------------
// Isolation
// ---------------------------------------------------------------------------
describe("isolation", () => {
  it("segregates plugins sharing namespace and key", async () => {
    await withOpenClawTestState({ label: "e2e-isolation" }, async () => {
      const pluginA = createPluginStateKeyedStore<{ owner: string }>("plugin-a", {
        namespace: "x",
        maxEntries: 10,
      });
      const pluginB = createPluginStateKeyedStore<{ owner: string }>("plugin-b", {
        namespace: "x",
        maxEntries: 10,
      });

      await pluginA.register("same", { owner: "a" });
      await pluginB.register("same", { owner: "b" });

      await expect(pluginA.lookup("same")).resolves.toEqual({ owner: "a" });
      await expect(pluginB.lookup("same")).resolves.toEqual({ owner: "b" });

      // Clearing one plugin's namespace does not affect the other.
      await pluginA.clear();
      await expect(pluginA.lookup("same")).resolves.toBeUndefined();
      await expect(pluginB.lookup("same")).resolves.toEqual({ owner: "b" });
    });
  });
});

// ---------------------------------------------------------------------------
// Limits
// ---------------------------------------------------------------------------
describe("limits", () => {
  it.each(["async", "sync"])("enforces the 1 MiB boundary across %s writes", async (mode) => {
    await withOpenClawTestState({ label: "e2e-limit" }, async () => {
      const createStore =
        mode === "async"
          ? createPluginStateKeyedStore<string>
          : createPluginStateSyncKeyedStore<string>;
      const store = createStore("fixture-plugin", {
        namespace: "size",
        maxEntries: 10,
      });
      // JSON.stringify wraps a string in quotes (+2 bytes).
      const boundary = "x".repeat(1_048_574);
      const oversize = `${boundary}x`;
      const update = expectDefined(store.update, "keyed store update support");
      await store.register("registered", boundary);
      expect(await store.registerIfAbsent("claimed", boundary)).toBe(true);
      await store.register("updated", "before");
      expect(await update("updated", () => boundary)).toBe(true);

      for (const write of [
        () => store.register("registered", oversize),
        () => store.registerIfAbsent("rejected", oversize),
        () => update("updated", () => oversize),
      ]) {
        await expect(async () => {
          await write();
        }).rejects.toMatchObject({
          code: "PLUGIN_STATE_LIMIT_EXCEEDED",
        });
      }
      resetPluginStateStoreForTests();
      for (const key of ["registered", "claimed", "updated"]) {
        expect(await store.lookup(key)).toBe(boundary);
      }
      expect(await store.lookup("rejected")).toBeUndefined();
    });
  });
});

// ---------------------------------------------------------------------------
// Failure safety
// ---------------------------------------------------------------------------
describe("failure safety", () => {
  it("probe returns redacted diagnostics without leaking stored values", async () => {
    await withOpenClawTestState({ label: "e2e-fail-probe" }, async () => {
      const result = probePluginStateStore();
      expect(result.ok).toBe(true);
      expect(result.databasePath).toContain("openclaw.sqlite");
      expect(result.steps.length).toBeGreaterThanOrEqual(4);
      const failedSteps = result.steps.filter((step) => !step.ok);
      expect(failedSteps).toEqual([]);

      // The probe's temporary stored value must not leak into the result.
      const serialised = JSON.stringify(result);
      expect(serialised).not.toContain("probe-value");
    });
  });

  it("close and reopen cycle is clean", async () => {
    await withOpenClawTestState({ label: "e2e-fail-reopen" }, async () => {
      const store = createPluginStateKeyedStore<{ v: number }>("fixture-plugin", {
        namespace: "reopen",
        maxEntries: 10,
      });
      await store.register("k", { v: 1 });

      // First close.
      closePluginStateDatabase();
      await expect(store.lookup("k")).resolves.toEqual({ v: 1 });

      // Second close (idempotent).
      closePluginStateDatabase();
      await expect(store.lookup("k")).resolves.toEqual({ v: 1 });

      // Write after reopen.
      await store.register("k", { v: 2 });
      await expect(store.lookup("k")).resolves.toEqual({ v: 2 });
    });
  });
});