import { expect } from "@std/expect";
import { createConsumer } from "@cistern/consumer";
import { createProducer } from "@cistern/producer";
import type { Handle } from "@atcute/lexicons";

/**
 * End-to-end integration test for Cistern
 *
 * This test requires the following environment variables:
 * - CISTERN_HANDLE: Your Bluesky handle (e.g., "user.bsky.social")
 * - CISTERN_APP_PASSWORD: Your app password
 *
 * To run this test:
 * ```bash
 * CISTERN_HANDLE="your.handle" CISTERN_APP_PASSWORD="your-app-password" deno test --allow-env --allow-net e2e.test.ts
 * ```
 */

const SKIP_E2E = !Deno.env.get("CISTERN_HANDLE") ||
  !Deno.env.get("CISTERN_APP_PASSWORD");

Deno.test({
  name: "E2E: Full encryption workflow",
  ignore: SKIP_E2E,
  async fn(t) {
    const handle = Deno.env.get("CISTERN_HANDLE") as Handle;
    const appPassword = Deno.env.get("CISTERN_APP_PASSWORD")!;

    let consumer: Awaited<ReturnType<typeof createConsumer>>;
    let producer: Awaited<ReturnType<typeof createProducer>>;
    let keypair: Awaited<ReturnType<typeof consumer.generateKeyPair>>;
    let memoUri: string;
    let testMessage: string;

    await t.step("Create consumer", async () => {
      consumer = await createConsumer({
        handle,
        appPassword,
      });

      expect(consumer.did).toBeDefined();
      expect(consumer.rpc).toBeDefined();
    });

    await t.step("Generate keypair", async () => {
      keypair = await consumer.generateKeyPair();

      expect(keypair.privateKey).toBeInstanceOf(Uint8Array);
      expect(keypair.publicKey).toBeDefined();
      expect(keypair.publicKey).toContain("app.cistern.pubkey");
    });

    try {
      await t.step("Create producer with public key", async () => {
        const publicKeyRkey = keypair.publicKey.split("/").pop()!;
        producer = await createProducer({
          handle,
          appPassword,
          publicKey: publicKeyRkey,
        });

        expect(producer.publicKey).toBeDefined();
        expect(producer.publicKey?.uri).toEqual(keypair.publicKey);
      });

      await t.step("Create encrypted memo", async () => {
        testMessage = `E2E Test - ${new Date().toISOString()}`;
        memoUri = await producer.createMemo(testMessage);

        expect(memoUri).toBeDefined();
        expect(memoUri).toContain("app.cistern.memo");
      });

      await t.step("List and decrypt memos", async () => {
        const memos = [];
        for await (const memo of consumer.listMemos()) {
          memos.push(memo);
        }

        expect(memos.length).toBeGreaterThan(0);

        const ourMemo = memos.find((memo) => memo.text === testMessage);
        expect(ourMemo).toBeDefined();
        expect(ourMemo!.text).toEqual(testMessage);
      });

      await t.step("Delete memo", async () => {
        const memoRkey = memoUri.split("/").pop()!;
        await consumer.deleteMemo(memoRkey);

        // Verify deletion
        const memosAfterDelete = [];
        for await (const memo of consumer.listMemos()) {
          memosAfterDelete.push(memo);
        }

        const deletedMemo = memosAfterDelete.find(
          (memo) => memo.text === testMessage,
        );
        expect(deletedMemo).toBeUndefined();
      });

      await t.step("List public keys", async () => {
        const keys = [];
        for await (const key of producer.listPublicKeys()) {
          keys.push(key);
        }

        expect(keys.length).toBeGreaterThan(0);

        const ourKey = keys.find((key) => key.uri === keypair.publicKey);
        expect(ourKey).toBeDefined();
        expect(ourKey!.uri).toEqual(keypair.publicKey);
      });
    } finally {
      await t.step("Cleanup: Delete test keypair", async () => {
        const publicKeyRkey = keypair.publicKey.split("/").pop()!;

        const res = await consumer.rpc.post("com.atproto.repo.deleteRecord", {
          input: {
            collection: "app.cistern.pubkey",
            repo: consumer.did,
            rkey: publicKeyRkey,
          },
        });

        expect(res.ok).toBe(true);
      });
    }
  },
});

Deno.test({
  name: "E2E: Multiple memos with same keypair",
  ignore: SKIP_E2E,
  async fn(t) {
    const handle = Deno.env.get("CISTERN_HANDLE") as Handle;
    const appPassword = Deno.env.get("CISTERN_APP_PASSWORD")!;

    let consumer: Awaited<ReturnType<typeof createConsumer>>;
    let producer: Awaited<ReturnType<typeof createProducer>>;
    let keypair: Awaited<ReturnType<typeof consumer.generateKeyPair>>;
    let messages: string[];
    let memoUris: string[];

    await t.step("Create consumer and generate keypair", async () => {
      consumer = await createConsumer({
        handle,
        appPassword,
      });

      keypair = await consumer.generateKeyPair();

      expect(keypair.privateKey).toBeInstanceOf(Uint8Array);
      expect(keypair.publicKey).toBeDefined();
    });

    try {
      await t.step("Create producer", async () => {
        const publicKeyRkey = keypair.publicKey.split("/").pop()!;
        producer = await createProducer({
          handle,
          appPassword,
          publicKey: publicKeyRkey,
        });

        expect(producer.publicKey?.uri).toEqual(keypair.publicKey);
      });

      await t.step("Create multiple encrypted memos", async () => {
        messages = [
          `E2E Memo 1 - ${new Date().toISOString()}`,
          `E2E Memo 2 - ${new Date().toISOString()}`,
          `E2E Memo 3 - ${new Date().toISOString()}`,
        ];

        memoUris = [];
        for (const message of messages) {
          const uri = await producer.createMemo(message);
          memoUris.push(uri);
        }

        expect(memoUris).toHaveLength(3);
      });

      await t.step("Decrypt all memos", async () => {
        const memos = [];
        for await (const memo of consumer.listMemos()) {
          memos.push(memo);
        }

        expect(memos.length).toBeGreaterThanOrEqual(3);

        // Verify all test messages are present
        for (const message of messages) {
          const memo = memos.find((m) => m.text === message);
          expect(memo).toBeDefined();
          expect(memo!.text).toEqual(message);
        }
      });

      await t.step("Cleanup: Delete test memos", async () => {
        for (const uri of memoUris) {
          const rkey = uri.split("/").pop()!;
          await consumer.deleteMemo(rkey);
        }

        // Verify all memos deleted
        const remainingMemos = [];
        for await (const memo of consumer.listMemos()) {
          remainingMemos.push(memo);
        }

        for (const message of messages) {
          const memo = remainingMemos.find((m) => m.text === message);
          expect(memo).toBeUndefined();
        }
      });
    } finally {
      await t.step("Cleanup: Delete test keypair", async () => {
        const publicKeyRkey = keypair.publicKey.split("/").pop()!;

        const res = await consumer.rpc.post("com.atproto.repo.deleteRecord", {
          input: {
            collection: "app.cistern.pubkey",
            repo: consumer.did,
            rkey: publicKeyRkey,
          },
        });

        expect(res.ok).toBe(true);
      });
    }
  },
});

if (SKIP_E2E) {
  console.log(`
⚠️  E2E tests skipped - missing environment variables

To run E2E tests, set the following environment variables:
  CISTERN_HANDLE="your.bsky.social"
  CISTERN_APP_PASSWORD="xxxx-xxxx-xxxx-xxxx"

Then run:
  deno test --allow-env --allow-net e2e.test.ts
`);
}