import { afterEach, beforeEach, describe, expect, it } from 'vitest';
import Database from 'better-sqlite3';
import { RedditAccountsRepository } from '../src/database/account-repositories.js';
import { runMigrations } from '../src/database/client.js';
import {
  ActivityLogRepository,
  ConversationOutcomesRepository,
  ConversationAutomationClaimRepository,
  ConversationStateRepository,
  DeliveryOutboxRepository,
  MessagesRepository,
  PostsRepository,
  RecipientHistoryRepository,
  SuccessfulMessagesRepository,
} from '../src/database/repositories.js';
import { buildConversationState } from '../src/services/conversation-state.js';

const ACCOUNT_A = '@t2_account_a:reddit.com';
const ACCOUNT_B = '@t2_account_b:reddit.com';

describe('account-bound domain repositories', () => {
  let db: Database.Database;

  beforeEach(() => {
    db = new Database(':memory:');
    db.pragma('foreign_keys = ON');
    runMigrations(db);
    const accounts = new RedditAccountsRepository(db);
    for (const [accountId, username] of [[ACCOUNT_A, 'account-a'], [ACCOUNT_B, 'account-b']] as const) {
      accounts.upsertVerified({
        accountId,
        redditUsername: username,
        matrixUserId: accountId,
        cookiesJson: '[]',
        matrixCredentialsJson: '{}',
        now: 1,
      });
    }
  });

  afterEach(() => db.close());

  function insertSamePost(posts: PostsRepository, title: string): void {
    posts.insert({
      id: 'same-post',
      subreddit: 'same-subreddit',
      author: 'same-recipient',
      title,
      imageUrl: null,
      processedAt: 1,
    });
  }

  it('isolates posts and messages with the same Reddit IDs and recipients', () => {
    const postsA = new PostsRepository(db, ACCOUNT_A);
    const postsB = new PostsRepository(db, ACCOUNT_B);
    const messagesA = new MessagesRepository(db, ACCOUNT_A);
    const messagesB = new MessagesRepository(db, ACCOUNT_B);
    insertSamePost(postsA, 'owned by A');
    insertSamePost(postsB, 'owned by B');

    postsA.markMessageSent('same-post');
    expect(postsA.getById('same-post')).toMatchObject({ title: 'owned by A', messageSent: true });
    expect(postsB.getById('same-post')).toMatchObject({ title: 'owned by B', messageSent: false });

    const messageA = messagesA.insert({
      postId: 'same-post', recipient: 'same-recipient', subject: 'A', message: 'from A', sentAt: 10,
    });
    const messageB = messagesB.insert({
      postId: 'same-post', recipient: 'same-recipient', subject: 'B', message: 'from B', sentAt: 20,
    });
    messagesA.insertChat({
      recipient: 'only-a', subject: 'A only', message: 'private', sentAt: 30, chatRoomId: 'same-room',
    });

    expect(messagesA.getByPostId('same-post')).toMatchObject({ id: messageA, message: 'from A' });
    expect(messagesB.getByPostId('same-post')).toMatchObject({ id: messageB, message: 'from B' });
    expect(messagesA.hasSentTo('only-a')).toBe(true);
    expect(messagesB.hasSentTo('only-a')).toBe(false);
    const recipientHistory = new RecipientHistoryRepository(db);
    expect(recipientHistory.hasSentTo('ONLY-A')).toBe(true);
    expect(messagesA.getByChatRoomId('same-room')?.recipient).toBe('only-a');
    expect(messagesB.getByChatRoomId('same-room')).toBeUndefined();

    messagesA.markGotResponse(messageB);
    expect(messagesB.getByPostId('same-post')?.gotResponse).toBe(false);
    expect(messagesA.getRecent()).toHaveLength(2);
    expect(messagesB.getRecent()).toHaveLength(1);
  });

  it('isolates conversation state with the same conversation ID', () => {
    const statesA = new ConversationStateRepository(db, ACCOUNT_A);
    const statesB = new ConversationStateRepository(db, ACCOUNT_B);
    statesA.save('same-room', buildConversationState([
      { sender: 'account-a', text: 'hello from A', isSelf: true },
    ]));
    statesB.save('same-room', buildConversationState([
      { sender: 'recipient', text: 'stop', isSelf: false },
    ]));

    expect(statesA.get('same-room')?.boundaries).toEqual([]);
    expect(statesB.get('same-room')?.boundaries).toContain('does not want further sexual escalation');
  });

  it('atomically claims each inbound automation event once per account', () => {
    const claimsA = new ConversationAutomationClaimRepository(db, ACCOUNT_A);
    const claimsB = new ConversationAutomationClaimRepository(db, ACCOUNT_B);

    expect(claimsA.tryClaim('same-room', 'same-event', 10)).toBe(true);
    expect(claimsA.tryClaim('same-room', 'same-event', 11)).toBe(false);
    expect(claimsB.tryClaim('same-room', 'same-event', 12)).toBe(true);
    expect(claimsA.markSent('same-room', 'same-event', 13)).toBe(true);
    expect(claimsA.markSent('same-room', 'same-event', 14)).toBe(false);
  });

  it('claims recipients globally and blocks usernames with existing chat history', () => {
    db.prepare(`
      INSERT INTO reddit_conversations (
        account_id, conversation_id, username, room_name, payload_json, updated_at
      ) VALUES (?, ?, ?, ?, ?, ?)
    `).run(
      ACCOUNT_A,
      'historical-room',
      'Historical_User',
      'Historical User',
      JSON.stringify({
        messages: [{ sender: 'Me', text: 'prior opener', timestamp: 1, isSelf: true }],
      }),
      2,
    );
    const history = new RecipientHistoryRepository(db);

    expect(history.hasSentTo('historical_user')).toBe(true);
    expect(history.tryClaim('HISTORICAL_USER', 3)).toBe(false);
    expect(history.tryClaim('new_user', 4)).toBe(true);
    expect(history.tryClaim('NEW_USER', 5)).toBe(false);
    history.releaseClaim('new_user');
    expect(history.tryClaim('new_user', 6)).toBe(true);
    history.commitClaim('new_user');
    history.releaseClaim('new_user');
    expect(history.hasSentTo('NEW_USER')).toBe(true);
  });

  it('isolates outbox claims, successful examples, activity and outcomes', () => {
    const postsA = new PostsRepository(db, ACCOUNT_A);
    const postsB = new PostsRepository(db, ACCOUNT_B);
    insertSamePost(postsA, 'A');
    insertSamePost(postsB, 'B');
    const messagesA = new MessagesRepository(db, ACCOUNT_A);
    const messagesB = new MessagesRepository(db, ACCOUNT_B);
    const messageA = messagesA.insert({
      postId: 'same-post', recipient: 'same-recipient', subject: 'A', message: 'A', sentAt: 1,
    });
    const messageB = messagesB.insert({
      postId: 'same-post', recipient: 'same-recipient', subject: 'B', message: 'B', sentAt: 2,
    });

    const outboxA = new DeliveryOutboxRepository(db, ACCOUNT_A);
    const outboxB = new DeliveryOutboxRepository(db, ACCOUNT_B);
    const items = [outboxA, outboxB].map((outbox) =>
      outbox.discover({
        postId: 'same-post', recipient: 'same-recipient', subject: 'same', message: 'same',
        idempotencyKey: 'same-key', now: 1,
      }),
    );
    expect(outboxA.count()).toBe(1);
    expect(outboxB.count()).toBe(1);
    expect(outboxA.markPrepared(items[0].id)).toBe(true);
    expect(outboxB.markPrepared(items[1].id)).toBe(true);
    expect(outboxA.claimNext('worker-a', 10, 1)?.id).toBe(items[0].id);
    expect(outboxB.get(items[1].id)?.status).toBe('prepared');
    expect(outboxB.claimNext('worker-b', 10, 1)?.id).toBe(items[1].id);

    const examplesA = new SuccessfulMessagesRepository(db, ACCOUNT_A);
    const examplesB = new SuccessfulMessagesRepository(db, ACCOUNT_B);
    examplesA.insert({ sentMessageId: messageA, originalMessage: 'same text', imageAnalysis: null, postTitle: null, responseSnippet: null, subreddit: null });
    expect(examplesA.existsByMessage('same text')).toBe(true);
    expect(examplesB.existsByMessage('same text')).toBe(false);
    examplesB.insert({ sentMessageId: messageB, originalMessage: 'same text', imageAnalysis: null, postTitle: null, responseSnippet: null, subreddit: null });
    expect(examplesA.count()).toBe(1);
    expect(examplesB.count()).toBe(1);

    const activityA = new ActivityLogRepository(db, ACCOUNT_A);
    const activityB = new ActivityLogRepository(db, ACCOUNT_B);
    activityA.insert({ timestamp: 1, type: 'sent', message: 'A activity' });
    activityB.insert({ timestamp: 2, type: 'sent', message: 'B activity' });
    expect(activityA.getRecent(10).map((item) => item.message)).toEqual(['A activity']);
    expect(activityB.getRecent(10).map((item) => item.message)).toEqual(['B activity']);

    const outcomesA = new ConversationOutcomesRepository(db, ACCOUNT_A);
    const outcomesB = new ConversationOutcomesRepository(db, ACCOUNT_B);
    outcomesA.record(messageA, 'engaged', 'A response');
    outcomesB.record(messageB, 'declined', 'B response');
    expect(outcomesA.get(messageA)?.outcome).toBe('engaged');
    expect(outcomesA.get(messageB)).toBeUndefined();
    expect(outcomesB.get(messageB)?.outcome).toBe('declined');
  });
});