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const database_1 = require("../../utils/database");
const RepositoryManager_1 = require("../../repositories/RepositoryManager");
const os = __importStar(require("os"));
const path = __importStar(require("path"));
const fs = __importStar(require("fs"));
describe('Issue #24 - Token Limit with includeMetadata', () => {
    let dbManager;
    let repositories;
    let tempDbPath;
    let testSessionId;
    beforeEach(() => {
        tempDbPath = path.join(os.tmpdir(), `test-issue24-${Date.now()}.db`);
        dbManager = new database_1.DatabaseManager({
            filename: tempDbPath,
            maxSize: 10 * 1024 * 1024,
            walMode: true,
        });
        repositories = new RepositoryManager_1.RepositoryManager(dbManager);
        // Create test session
        const session = repositories.sessions.create({
            name: 'Issue #24 Test Session',
            description: 'Testing token limit with metadata',
        });
        testSessionId = session.id;
    });
    afterEach(() => {
        dbManager.close();
        try {
            fs.unlinkSync(tempDbPath);
            fs.unlinkSync(`${tempDbPath}-wal`);
            fs.unlinkSync(`${tempDbPath}-shm`);
        }
        catch (_e) {
            // Ignore
        }
    });
    it('should not exceed token limit when includeMetadata is true with many items', () => {
        // Create many items with substantial content to simulate real-world scenario
        const itemCount = 200; // Create enough items to potentially exceed token limits
        for (let i = 0; i < itemCount; i++) {
            repositories.contexts.save(testSessionId, {
                key: `test_item_${i}`,
                value: `This is a test item with a moderately long value that simulates real-world context data.
                It includes multiple lines and enough content to make the response substantial when
                many items are returned together. Each item contributes to the total token count.
                Item number: ${i}. Additional metadata and timestamps will be included when
                includeMetadata is set to true, further increasing the response size.`.repeat(2),
                category: i % 2 === 0 ? 'task' : 'decision',
                priority: i % 3 === 0 ? 'high' : 'normal',
                channel: 'test-channel',
                metadata: JSON.stringify({
                    index: i,
                    timestamp: new Date().toISOString(),
                    tags: ['test', 'issue24', 'metadata'],
                }),
            });
        }
        // Query with includeMetadata: true (this was causing the issue)
        const result = repositories.contexts.queryEnhanced({
            sessionId: testSessionId,
            includeMetadata: true,
            // No limit specified - repository uses default of 100
            // The handler level would apply dynamic limits, but repository doesn't know about includeMetadata
        });
        // Repository default is 100 items (it doesn't know about metadata)
        // The dynamic limiting happens at the handler level in index.ts
        expect(result.items.length).toBeLessThanOrEqual(100);
        expect(result.totalCount).toBe(itemCount);
        // Simulate the response construction with metadata
        const itemsWithMetadata = result.items.map(item => ({
            key: item.key,
            value: item.value,
            category: item.category,
            priority: item.priority,
            channel: item.channel,
            metadata: item.metadata ? JSON.parse(item.metadata) : null,
            size: item.size || Buffer.byteLength(item.value, 'utf8'),
            created_at: item.created_at,
            updated_at: item.updated_at,
        }));
        // Create the full response structure
        const response = {
            items: itemsWithMetadata,
            pagination: {
                total: result.totalCount,
                returned: result.items.length,
                offset: 0,
                hasMore: result.totalCount > result.items.length,
                nextOffset: result.items.length < result.totalCount ? result.items.length : null,
                totalCount: result.totalCount,
                page: 1,
                pageSize: 50,
                totalPages: Math.ceil(result.totalCount / 50),
                hasNextPage: result.totalCount > result.items.length,
                hasPreviousPage: false,
                previousOffset: null,
                totalSize: 0,
                averageSize: 0,
                defaultsApplied: { limit: true, sort: true },
                truncated: false,
                truncatedCount: 0,
            },
        };
        // Calculate token estimate for the response
        const responseJson = JSON.stringify(response, null, 2);
        const estimatedTokens = Math.ceil(responseJson.length / 4);
        console.log(`Response size: ${responseJson.length} bytes`);
        console.log(`Estimated tokens: ${estimatedTokens}`);
        console.log(`Items returned: ${result.items.length} of ${result.totalCount}`);
        // Note: Repository returns 100 items by default, which may exceed token limits
        // This demonstrates why the handler level needs to apply dynamic limiting
        // The handler would truncate this response to prevent token overflow
        console.log(`Repository returned ${result.items.length} items with ${estimatedTokens} tokens`);
        // This shows the problem: repository default of 100 can exceed limits
        if (estimatedTokens > 25000) {
            console.log('This demonstrates why dynamic limiting at handler level is needed!');
        }
    });
    it('should handle explicit high limit with metadata by truncating', () => {
        // Create many items
        const itemCount = 500;
        for (let i = 0; i < itemCount; i++) {
            repositories.contexts.save(testSessionId, {
                key: `large_item_${i}`,
                value: `Large content ${i}`.repeat(50), // Make items larger
                category: 'task',
                priority: 'high',
                channel: 'large-channel',
            });
        }
        // Query with a high explicit limit and metadata
        const result = repositories.contexts.queryEnhanced({
            sessionId: testSessionId,
            includeMetadata: true,
            limit: 1000, // Explicitly request many items
        });
        // Repository will cap at the actual number of items available
        // Since we created 500 items, we should get all 500
        // The token limiting would happen at the handler level, not repository level
        expect(result.items.length).toBe(500); // Gets all items since limit > itemCount
        // Calculate response size
        const itemsWithMetadata = result.items.map(item => ({
            key: item.key,
            value: item.value,
            category: item.category,
            priority: item.priority,
            channel: item.channel,
            metadata: item.metadata ? JSON.parse(item.metadata) : null,
            size: item.size || Buffer.byteLength(item.value, 'utf8'),
            created_at: item.created_at,
            updated_at: item.updated_at,
        }));
        const responseJson = JSON.stringify({ items: itemsWithMetadata }, null, 2);
        const estimatedTokens = Math.ceil(responseJson.length / 4);
        console.log(`Large query - Items: ${result.items.length}, Tokens: ${estimatedTokens}`);
        // This test shows that without handler-level limiting, large queries would overflow
        // The handler's dynamic limiting would truncate this to safe levels
        if (estimatedTokens > 25000) {
            console.log(`Would need truncation: ${estimatedTokens} tokens exceeds 25000 limit`);
        }
        // The test demonstrates the need for handler-level dynamic limiting
        expect(result.items.length).toBe(500); // Repository returns what was requested
    });
});
