"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createBunRedisClient = createBunRedisClient;
const crypto_1 = require("crypto");
const events_1 = require("events");
const stream_1 = require("stream");
const connection_closed_error_1 = require("./errors/connection-closed-error");
function normalizeScriptArgs(args) {
    return args.length === 1 && Array.isArray(args[0]) ? args[0] : args;
}
/**
 * Returns true when the error is one that Bun's Redis client throws because
 * the underlying TCP connection has been closed or is in the process of being
 * closed (either intentionally via disconnect()/quit() or unexpectedly).
 */
function isBunConnectionClosedError(err) {
    var _a;
    const msg = (_a = err === null || err === void 0 ? void 0 : err.message) !== null && _a !== void 0 ? _a : '';
    return (msg === 'Socket closed unexpectedly' ||
        msg.startsWith('Connection closed') ||
        msg === 'Connection is closed.' ||
        msg === 'Connection has failed');
}
function normalizeStringCollection(reply) {
    if (reply == null) {
        return [];
    }
    if (Array.isArray(reply)) {
        return reply.map(String);
    }
    if (reply instanceof Set) {
        return Array.from(reply, item => String(item));
    }
    return [];
}
function createBunRedisClient(client, opts) {
    return new BunRedisAdapter(client, opts);
}
/**
 * Full wrapper for Bun's RedisClient.
 *
 * Key design decisions vs node-redis adapter:
 * 1. No error noise on close: Bun's close() cleanly terminates pending
 *    commands without throwing DisconnectsClientError.
 * 2. EventEmitter bridging: Bun uses `onconnect`/`onclose` callbacks;
 *    we bridge those into standard EventEmitter events.
 * 3. Raw command execution: Bun's `send()` is the universal escape hatch
 *    for commands without convenience methods.
 */
class BunRedisAdapter extends events_1.EventEmitter {
    get status() {
        if (this.statusOverride) {
            return this.statusOverride;
        }
        if (this.closed) {
            return 'end';
        }
        if (this.raw.connected) {
            return 'ready';
        }
        return this.hasConnected ? 'end' : 'wait';
    }
    set status(val) {
        if (val === 'end') {
            this.closing = true;
            this.closed = true;
            // Do not call raw.close() here – disconnect()/quit() handle closing.
        }
        this.statusOverride = val;
    }
    get options() {
        return {};
    }
    set options(_val) {
        // no-op
    }
    constructor(raw, opts) {
        super();
        this.raw = raw;
        this.scripts = new Map();
        // Tracks which script SHAs have been loaded server-side on the current
        // raw connection. Cleared on (re)connect since SCRIPT cache is per-server
        // and is also lost across our internal raw-client swap.
        this.loadedScriptShas = new Set();
        this.hasConnected = false;
        this.closed = false;
        this.closing = false;
        // Auto-reconnect state
        this.reconnecting = false;
        this.reconnectTimer = null;
        this.reconnectAttempts = 0;
        this.maxReconnectDelay = 20000; // cap at 20s (matches ioredis default)
        this.isCluster = false;
        this._setupCallbacks();
        // ioredis auto-connects by default. Mimic that behavior unless
        // lazyConnect is set.
        if (!(opts === null || opts === void 0 ? void 0 : opts.lazyConnect)) {
            this.connect().catch(() => {
                // Connection errors will be emitted via the 'error' event.
            });
        }
    }
    /**
     * Wire up Bun's callback-style events into EventEmitter and auto-reconnect.
     */
    _setupCallbacks() {
        // Bridge Bun's callback-style events into EventEmitter.
        // When connectionName is set (via duplicate()), delay the 'ready'
        // event until CLIENT SETNAME completes so callers waiting for 'ready'
        // see the name already applied.
        this.raw.onconnect = () => {
            this.hasConnected = true;
            this.closed = false;
            this.closing = false;
            this.reconnecting = false;
            this.reconnectAttempts = 0;
            this.statusOverride = undefined;
            // The server-side SCRIPT cache is gone for this (possibly new) raw
            // connection. Force re-loading on next use.
            this.loadedScriptShas.clear();
            if (this.connectionName) {
                this.clientSetName(this.connectionName).then(() => this.emit('ready'), () => this.emit('ready'));
            }
            else {
                this.emit('ready');
            }
        };
        this.raw.onclose = (error) => {
            if (this.closing) {
                // User-initiated close – no reconnect
                this.closed = true;
                this.emit('close');
                this.emit('end');
                return;
            }
            // Unexpected close – attempt auto-reconnect
            this.closed = true;
            this.emit('close');
            if (error) {
                this.emit('error', error);
            }
            this._scheduleReconnect();
        };
    }
    /**
     * Schedule a reconnection attempt with exponential backoff.
     */
    _scheduleReconnect() {
        if (this.closing || this.reconnecting) {
            return;
        }
        this.reconnecting = true;
        this.reconnectAttempts++;
        // Exponential backoff: min(e^attempts, 20000) ms, floored at 1000ms
        const delay = Math.max(Math.min(Math.exp(this.reconnectAttempts) * 100, this.maxReconnectDelay), 1000);
        this.reconnectTimer = setTimeout(async () => {
            this.reconnectTimer = null;
            if (this.closing) {
                this.reconnecting = false;
                return;
            }
            try {
                // Create a fresh raw client with the same URL
                const BunRedisClient = this.raw
                    .constructor;
                const newRaw = new BunRedisClient(this.raw.url);
                // Swap the raw client reference
                this.raw = newRaw;
                this.closed = false;
                this.connecting = undefined;
                // Re-wire callbacks on the new raw client
                this._setupCallbacks();
                // Connect – onconnect callback will emit 'ready' and reset state
                await newRaw.connect();
            }
            catch (_err) {
                // Reconnect failed – schedule another attempt
                this.reconnecting = false;
                if (!this.closing) {
                    this._scheduleReconnect();
                }
            }
        }, delay);
    }
    // ---------------------------------------------------------------
    // Connection lifecycle
    // ---------------------------------------------------------------
    async connect() {
        const replaceRaw = this.hasConnected && (this.closed || !this.raw.connected);
        if (this.reconnectTimer) {
            clearTimeout(this.reconnectTimer);
            this.reconnectTimer = null;
        }
        this.reconnecting = false;
        if (this.raw.connected && !replaceRaw) {
            this.hasConnected = true;
            this.closed = false;
            this.closing = false;
            this.statusOverride = undefined;
            return;
        }
        if (!this.connecting) {
            this.closed = false;
            this.closing = false;
            this.statusOverride = undefined;
            // If the raw client was previously closed, Bun doesn't support
            // reconnecting on the same instance. Create a fresh raw client.
            if (replaceRaw) {
                const BunRedisClient = this.raw
                    .constructor;
                this.raw = new BunRedisClient(this.raw.url);
                this._setupCallbacks();
            }
            this.connecting = this.raw
                .connect()
                .then(() => {
                this.hasConnected = true;
                this.closed = false;
                this.closing = false;
                this.statusOverride = undefined;
            })
                .finally(() => {
                this.connecting = undefined;
            });
        }
        await this.connecting;
    }
    _closeRaw() {
        // Cancel any pending reconnect
        if (this.reconnectTimer) {
            clearTimeout(this.reconnectTimer);
            this.reconnectTimer = null;
        }
        this.reconnecting = false;
        const raw = this.raw;
        raw.onconnect = () => { };
        raw.onclose = () => { };
        raw.onerror = () => { };
        if (raw.connected) {
            // Defer close so that Bun's native error is raised outside the
            // calling test's synchronous scope, preventing it from being
            // attributed to the test as an unhandled error.
            setImmediate(() => {
                try {
                    if (raw.connected) {
                        raw.close();
                    }
                }
                catch (_err) {
                    // swallow
                }
            });
        }
    }
    disconnect(reconnect) {
        if (this.closed && !reconnect) {
            return;
        }
        if (reconnect) {
            // Close the current raw connection and schedule a reconnect.
            // Don't set closing=true so the reconnect logic is allowed to fire.
            this.closed = true;
            this.statusOverride = undefined;
            const raw = this.raw;
            raw.onclose = () => { };
            if (raw.connected) {
                setImmediate(() => {
                    try {
                        if (raw.connected) {
                            raw.close();
                        }
                    }
                    catch (_err) {
                        // swallow
                    }
                });
            }
            this.emit('close');
            this._scheduleReconnect();
        }
        else {
            this.closing = true;
            this.closed = true;
            this.statusOverride = 'end';
            this._closeRaw();
            this.emit('close');
            this.emit('end');
        }
    }
    async quit() {
        if (this.closed) {
            setImmediate(() => {
                this.emit('end');
                this.emit('close');
            });
            return 'OK';
        }
        this.closing = true;
        this.closed = true;
        this.statusOverride = 'end';
        this._closeRaw();
        // Emit on next tick so callers can register listeners after await quit()
        setImmediate(() => {
            this.emit('end');
            this.emit('close');
        });
        return 'OK';
    }
    duplicate(...args) {
        // Bun's duplicate() is async, but IRedisClient.duplicate() is sync.
        // We create a new RedisClient with the same URL/options instead.
        // The raw client constructor in Bun doesn't connect until connect() or
        // first command, so this is safe.
        const BunRedisClient = this.raw
            .constructor;
        const dup = new BunRedisClient(this.raw.url);
        const adapter = new BunRedisAdapter(dup);
        // Copy registered scripts to the duplicate
        for (const [name, script] of this.scripts) {
            adapter.scripts.set(name, script);
            adapter[name] = (...a) => adapter.runCommand(name, a);
        }
        // Handle connectionName option (ioredis calls CLIENT SETNAME automatically).
        // Setting connectionName ensures the onconnect handler applies CLIENT
        // SETNAME before emitting 'ready'.
        const opts = args[0];
        if (opts && typeof opts === 'object' && opts.connectionName) {
            adapter.connectionName = opts.connectionName;
        }
        return adapter;
    }
    // ---------------------------------------------------------------
    // Lua script engine
    // ---------------------------------------------------------------
    defineCommand(name, definition) {
        const sha = (0, crypto_1.createHash)('sha1').update(definition.lua).digest('hex');
        this.scripts.set(name, {
            sha,
            lua: definition.lua,
            numberOfKeys: definition.numberOfKeys,
        });
        this[name] = (...args) => this.runCommand(name, args);
        // Note: We intentionally skip SCRIPT LOAD here. The first EVALSHA call
        // will get a NOSCRIPT error and fall back to EVAL, which also loads the
        // script for subsequent calls. This avoids fire-and-forget sendCommand
        // calls that can trigger spurious unhandled rejection reports in Bun.
    }
    async runCommand(name, args) {
        const script = this.scripts.get(name);
        if (!script) {
            throw new Error(`BullMQ: unknown command "${name}"`);
        }
        const commandArgs = normalizeScriptArgs(args);
        const { sha, lua, numberOfKeys } = script;
        const keys = commandArgs.slice(0, numberOfKeys).map(String);
        const argv = commandArgs.slice(numberOfKeys).map((a) => {
            if (Buffer.isBuffer(a)) {
                return a;
            }
            if (a === undefined || a === null) {
                return '';
            }
            return String(a);
        });
        // Build EVALSHA args: sha numkeys key... arg...
        const evalArgs = [sha, String(keys.length), ...keys, ...argv];
        const execute = async () => {
            var _a, _b;
            try {
                const result = await this.sendCommand('EVALSHA', evalArgs);
                this.loadedScriptShas.add(sha);
                return result;
            }
            catch (err) {
                if ((_b = (_a = err === null || err === void 0 ? void 0 : err.message) === null || _a === void 0 ? void 0 : _a.includes) === null || _b === void 0 ? void 0 : _b.call(_a, 'NOSCRIPT')) {
                    const evalLuaArgs = [lua, String(keys.length), ...keys, ...argv];
                    const result = await this.sendCommand('EVAL', evalLuaArgs);
                    this.loadedScriptShas.add(sha);
                    return result;
                }
                throw err;
            }
        };
        return execute();
    }
    /**
     * Ensure the given scripts are present in the server-side SCRIPT cache so
     * that subsequent EVALSHA calls (e.g. inside a MULTI/EXEC) won't fail with
     * NOSCRIPT. Each script is SCRIPT LOAD'd at most once per connection.
     */
    async ensureScriptsLoaded(scripts) {
        const toLoad = [];
        const seen = new Set();
        for (const s of scripts) {
            if (this.loadedScriptShas.has(s.sha) || seen.has(s.sha)) {
                continue;
            }
            seen.add(s.sha);
            toLoad.push(s);
        }
        if (toLoad.length === 0) {
            return;
        }
        await Promise.all(toLoad.map(async (s) => {
            await this.sendCommand('SCRIPT', ['LOAD', s.lua]);
            this.loadedScriptShas.add(s.sha);
        }));
    }
    sendCommand(command, args) {
        // If the connection is already closing/closed, return a rejected promise.
        if (this.closing || this.closed) {
            return Promise.reject(new connection_closed_error_1.ConnectionClosedError('Connection is closed'));
        }
        // Send directly to the underlying Bun client. Redis protocol guarantees
        // responses arrive in the same order as requests on a single connection,
        // so concurrent send() calls are safe and enable implicit pipelining
        // (multiple commands written to the socket before any response is read).
        // MULTI/EXEC transactions don't go through this path — they are issued
        // as a synchronous burst of raw `send()` calls in
        // `BunRedisTransaction.exec()`, which guarantees the MULTI…EXEC frames
        // are written contiguously without any other command interleaving.
        return this.raw.send(command, args).catch((err) => {
            if (isBunConnectionClosedError(err)) {
                // During an intentional teardown (quit()/disconnect()) resolve to
                // null instead of rejecting. Bun's close() abruptly rejects every
                // in-flight command, so without this a shared client shut down at app
                // exit floods dozens of unhandled ConnectionClosedError rejections.
                // This mirrors the node-redis adapter, which swallows connection-closed
                // errors while destroying. Unexpected drops still reject so BullMQ can
                // react (reconnect / retry).
                if (this.closing || this.closed) {
                    return null;
                }
                return Promise.reject(new connection_closed_error_1.ConnectionClosedError(err.message, err));
            }
            throw err;
        });
    }
    // ---------------------------------------------------------------
    // Pipeline / Transaction
    // ---------------------------------------------------------------
    multi() {
        return new BunRedisTransaction(this.raw, this.scripts, true, this);
    }
    pipeline() {
        return new BunRedisTransaction(this.raw, this.scripts, false, this);
    }
    // ---------------------------------------------------------------
    // Hash commands
    // ---------------------------------------------------------------
    async hgetall(key) {
        const result = await this.sendCommand('HGETALL', [key]);
        if (!result || (Array.isArray(result) && result.length === 0)) {
            return {};
        }
        // RESP3 returns a map, RESP2 returns flat array [field, value, ...]
        if (Array.isArray(result)) {
            const obj = {};
            for (let i = 0; i < result.length; i += 2) {
                obj[String(result[i])] = String(result[i + 1]);
            }
            return obj;
        }
        // If it's already an object (RESP3 map)
        return result;
    }
    async hget(key, field) {
        const result = await this.sendCommand('HGET', [key, field]);
        return result !== null && result !== void 0 ? result : null;
    }
    async hmget(key, ...fields) {
        const result = await this.sendCommand('HMGET', [key, ...fields]);
        return (result || []).map((v) => v !== null && v !== void 0 ? v : null);
    }
    async hset(key, dataOrField, ...rest) {
        let args;
        if (typeof dataOrField === 'object') {
            args = [key];
            for (const [k, v] of Object.entries(dataOrField)) {
                args.push(k, String(v));
            }
        }
        else {
            args = [key, dataOrField, String(rest[0])];
            for (let i = 1; i < rest.length; i += 2) {
                args.push(String(rest[i]), String(rest[i + 1]));
            }
        }
        return await this.sendCommand('HSET', args);
    }
    async hdel(key, ...fields) {
        return await this.sendCommand('HDEL', [key, ...fields]);
    }
    async hexists(key, field) {
        const result = await this.sendCommand('HEXISTS', [key, field]);
        // Bun returns boolean for some commands; normalize to 0/1
        return result === true || result === 1 ? 1 : 0;
    }
    // ---------------------------------------------------------------
    // String commands
    // ---------------------------------------------------------------
    async get(key) {
        const result = await this.sendCommand('GET', [key]);
        return result !== null && result !== void 0 ? result : null;
    }
    async set(key, value, options) {
        const args = [key, String(value)];
        if ((options === null || options === void 0 ? void 0 : options.PX) != null) {
            args.push('PX', String(options.PX));
        }
        else if ((options === null || options === void 0 ? void 0 : options.EX) != null) {
            args.push('EX', String(options.EX));
        }
        return await this.sendCommand('SET', args);
    }
    async del(...keys) {
        if (keys.length === 0) {
            return 0;
        }
        return await this.sendCommand('DEL', keys);
    }
    // ---------------------------------------------------------------
    // Sorted set commands
    // ---------------------------------------------------------------
    async zrange(key, start, end, options) {
        const args = [key, String(start), String(end)];
        if (options === null || options === void 0 ? void 0 : options.WITHSCORES) {
            args.push('WITHSCORES');
        }
        const result = await this.sendCommand('ZRANGE', args);
        if (!result) {
            return [];
        }
        // Bun returns WITHSCORES as [[member, score], ...] instead of flat [member, score, ...]
        if ((options === null || options === void 0 ? void 0 : options.WITHSCORES) && result.length > 0 && Array.isArray(result[0])) {
            return result.flatMap((pair) => [String(pair[0]), String(pair[1])]);
        }
        return result.map(String);
    }
    async zrevrange(key, start, end, options) {
        const args = [key, String(start), String(end)];
        if (options === null || options === void 0 ? void 0 : options.WITHSCORES) {
            args.push('WITHSCORES');
        }
        // ZREVRANGE is deprecated; use ZRANGE REV
        args.push('REV');
        const result = await this.sendCommand('ZRANGE', args);
        if (!result) {
            return [];
        }
        // Bun returns WITHSCORES as [[member, score], ...] instead of flat [member, score, ...]
        if ((options === null || options === void 0 ? void 0 : options.WITHSCORES) && result.length > 0 && Array.isArray(result[0])) {
            return result.flatMap((pair) => [String(pair[0]), String(pair[1])]);
        }
        return result.map(String);
    }
    async zcard(key) {
        return await this.sendCommand('ZCARD', [key]);
    }
    async zscore(key, member) {
        const score = await this.sendCommand('ZSCORE', [key, member]);
        return score != null ? String(score) : null;
    }
    // ---------------------------------------------------------------
    // List commands
    // ---------------------------------------------------------------
    async lrange(key, start, end) {
        const result = await this.sendCommand('LRANGE', [
            key,
            String(start),
            String(end),
        ]);
        return (result || []).map(String);
    }
    async llen(key) {
        return await this.sendCommand('LLEN', [key]);
    }
    async ltrim(key, start, end) {
        await this.sendCommand('LTRIM', [key, String(start), String(end)]);
        return 'OK';
    }
    async lpos(key, value) {
        const result = await this.sendCommand('LPOS', [key, value]);
        return result !== null && result !== void 0 ? result : null;
    }
    // ---------------------------------------------------------------
    // Set commands
    // ---------------------------------------------------------------
    async smembers(key) {
        const result = await this.sendCommand('SMEMBERS', [key]);
        return normalizeStringCollection(result);
    }
    // ---------------------------------------------------------------
    // Stream commands
    // ---------------------------------------------------------------
    async xadd(key, id, fields, options) {
        const args = [key];
        if ((options === null || options === void 0 ? void 0 : options.MAXLEN) != null) {
            args.push('MAXLEN');
            if (options.approximate !== false) {
                args.push('~');
            }
            args.push(String(options.MAXLEN));
        }
        args.push(id);
        for (const [k, v] of Object.entries(fields)) {
            args.push(k, String(v));
        }
        return await this.raw.send('XADD', args);
    }
    async xread(streams, options) {
        const args = [];
        if ((options === null || options === void 0 ? void 0 : options.COUNT) != null) {
            args.push('COUNT', String(options.COUNT));
        }
        if ((options === null || options === void 0 ? void 0 : options.BLOCK) != null) {
            args.push('BLOCK', String(options.BLOCK));
        }
        args.push('STREAMS');
        for (const s of streams) {
            args.push(s.key);
        }
        for (const s of streams) {
            args.push(s.id);
        }
        let result;
        try {
            result = await this.sendCommand('XREAD', args);
        }
        catch (err) {
            if (this.closing) {
                return null;
            }
            throw err;
        }
        if (!result) {
            return null;
        }
        // Normalize to ioredis format: [[streamName, [[id, [field, value, …]], …]], …]
        // Bun returns a map/object: { streamName: [[id, [field, value, ...]], ...], ... }
        if (Array.isArray(result)) {
            // RESP2 nested array format
            return result.map((stream) => {
                const streamName = String(stream[0]);
                const entries = (stream[1] || []).map((entry) => {
                    const entryId = String(entry[0]);
                    const fields = (entry[1] || []).map(String);
                    return [entryId, fields];
                });
                return [streamName, entries];
            });
        }
        // Bun returns an object keyed by stream name
        return Object.entries(result).map(([streamName, rawEntries]) => {
            const entries = (rawEntries || []).map((entry) => {
                const entryId = String(entry[0]);
                const fields = (entry[1] || []).map(String);
                return [entryId, fields];
            });
            return [streamName, entries];
        });
    }
    async xtrim(key, strategy, threshold, options) {
        const args = [key, strategy];
        if ((options === null || options === void 0 ? void 0 : options.approximate) !== false) {
            args.push('~');
        }
        args.push(String(threshold));
        return await this.sendCommand('XTRIM', args);
    }
    // ---------------------------------------------------------------
    // Blocking commands
    // ---------------------------------------------------------------
    async bzpopmin(key, timeout) {
        let result;
        try {
            result = await this.sendCommand('BZPOPMIN', [key, String(timeout)]);
        }
        catch (err) {
            if (this.closing) {
                return null;
            }
            throw err;
        }
        if (!result || result.length === 0) {
            return null;
        }
        return [String(result[0]), String(result[1]), String(result[2])];
    }
    // ---------------------------------------------------------------
    // Server / admin commands
    // ---------------------------------------------------------------
    async info() {
        return await this.sendCommand('INFO', []);
    }
    async clientSetName(name) {
        return await this.sendCommand('CLIENT', ['SETNAME', name]);
    }
    async clientList() {
        return await this.sendCommand('CLIENT', ['LIST']);
    }
    // ---------------------------------------------------------------
    // Key scanning
    // ---------------------------------------------------------------
    async scan(cursor, options) {
        const args = [String(cursor)];
        if (options === null || options === void 0 ? void 0 : options.MATCH) {
            args.push('MATCH', options.MATCH);
        }
        if (options === null || options === void 0 ? void 0 : options.COUNT) {
            args.push('COUNT', String(options.COUNT));
        }
        const result = await this.sendCommand('SCAN', args);
        // SCAN returns [cursor, [key, key, ...]]
        const keys = result[1];
        return [String(result[0]), Array.isArray(keys) ? keys.map(String) : []];
    }
    scanStream(options) {
        const adapter = this;
        let cursor = '0';
        let started = false;
        const readable = new stream_1.Readable({
            objectMode: true,
            async read() {
                if (started && cursor === '0') {
                    readable.push(null); // EOF
                    return;
                }
                started = true;
                try {
                    // Loop until we have keys to push or reach end of scan
                    while (true) {
                        const [nextCursor, keys] = await adapter.scan(cursor, {
                            MATCH: options.match,
                            COUNT: options.count,
                        });
                        cursor = nextCursor;
                        if (keys.length > 0) {
                            readable.push(keys);
                            if (cursor === '0') {
                                readable.push(null); // EOF
                            }
                            return;
                        }
                        if (cursor === '0') {
                            readable.push(null); // EOF
                            return;
                        }
                        // No keys but scan not complete — continue scanning
                    }
                }
                catch (err) {
                    readable.destroy(err);
                }
            },
        });
        return readable;
    }
    // ---------------------------------------------------------------
    // Extra Redis commands used by BullMQ internals
    // ---------------------------------------------------------------
    async keys(pattern) {
        const result = await this.sendCommand('KEYS', [pattern]);
        return (result || []).map(String);
    }
    async exists(...keys) {
        if (keys.length === 0) {
            return 0;
        }
        const result = await this.sendCommand('EXISTS', keys);
        // Bun may return boolean for single key
        if (typeof result === 'boolean') {
            return result ? 1 : 0;
        }
        return result;
    }
    async zadd(key, ...args) {
        // ioredis format: zadd(key, score, member, score, member, ...)
        const cmdArgs = [key];
        for (let i = 0; i < args.length; i += 2) {
            cmdArgs.push(String(args[i]), String(args[i + 1]));
        }
        return await this.sendCommand('ZADD', cmdArgs);
    }
    async zrem(key, ...members) {
        return await this.sendCommand('ZREM', [key, ...members]);
    }
    async xlen(key) {
        return await this.sendCommand('XLEN', [key]);
    }
    async xrevrange(key, end, start, ...rest) {
        const args = [key, end, start];
        if (rest[0] === 'COUNT') {
            args.push('COUNT', String(rest[1]));
        }
        const result = await this.sendCommand('XREVRANGE', args);
        if (!result) {
            return [];
        }
        // Normalize to ioredis format: [[id, [field, value, …]], …]
        return result.map((msg) => [
            String(msg[0]),
            (msg[1] || []).map(String),
        ]);
    }
    async sadd(key, ...members) {
        return await this.sendCommand('SADD', [key, ...members.map(String)]);
    }
    async scard(key) {
        return await this.sendCommand('SCARD', [key]);
    }
    async lpush(key, ...values) {
        return await this.sendCommand('LPUSH', [key, ...values]);
    }
    async rpop(key) {
        const result = await this.sendCommand('RPOP', [key]);
        return result !== null && result !== void 0 ? result : null;
    }
    async incr(key) {
        return await this.sendCommand('INCR', [key]);
    }
    async incrby(key, increment) {
        return await this.sendCommand('INCRBY', [key, String(increment)]);
    }
    async flushall() {
        return await this.sendCommand('FLUSHALL', []);
    }
}
// ---------------------------------------------------------------------------
// Transaction / Pipeline wrapper
//
// Bun doesn't have a native MULTI object. We buffer commands and execute
// them within a MULTI/EXEC block using send().
// ---------------------------------------------------------------------------
class BunRedisTransaction {
    constructor(raw, scripts, transactional, adapter) {
        this.raw = raw;
        this.scripts = scripts;
        this.transactional = transactional;
        this.adapter = adapter;
        this.commands = [];
        this.transformers = [];
        // Scripts that need to be SCRIPT LOAD'd before exec() so the EVALSHA
        // calls queued in this transaction won't NOSCRIPT.
        this.scriptsToLoad = [];
    }
    addCommand(cmd, args, transformer) {
        this.commands.push({ cmd, args });
        this.transformers.push(transformer || ((v) => v));
    }
    hgetall(key) {
        this.addCommand('HGETALL', [key], (val) => {
            if (!val || (Array.isArray(val) && val.length === 0)) {
                return {};
            }
            if (Array.isArray(val)) {
                const obj = {};
                for (let i = 0; i < val.length; i += 2) {
                    obj[String(val[i])] = String(val[i + 1]);
                }
                return obj;
            }
            return val;
        });
        return this;
    }
    hset(key, data) {
        const args = [key];
        for (const [k, v] of Object.entries(data)) {
            args.push(k, String(v));
        }
        this.addCommand('HSET', args);
        return this;
    }
    hscan(key, cursor, options) {
        const args = [key, String(cursor)];
        if ((options === null || options === void 0 ? void 0 : options.COUNT) != null) {
            args.push('COUNT', String(options.COUNT));
        }
        this.addCommand('HSCAN', args, (val) => {
            // Normalize to ioredis format: [cursor, [field, value, field, value, ...]]
            if (!val) {
                return ['0', []];
            }
            if (Array.isArray(val)) {
                return [String(val[0]), normalizeStringCollection(val[1])];
            }
            return ['0', []];
        });
        return this;
    }
    smembers(key) {
        this.addCommand('SMEMBERS', [key], (val) => normalizeStringCollection(val));
        return this;
    }
    sscan(key, cursor, options) {
        const args = [key, String(cursor)];
        if ((options === null || options === void 0 ? void 0 : options.COUNT) != null) {
            args.push('COUNT', String(options.COUNT));
        }
        this.addCommand('SSCAN', args, (val) => {
            // Normalize to ioredis format: [cursor, [member, member, ...]]
            if (!val) {
                return ['0', []];
            }
            if (Array.isArray(val)) {
                return [String(val[0]), normalizeStringCollection(val[1])];
            }
            return ['0', []];
        });
        return this;
    }
    zrange(key, start, end) {
        this.addCommand('ZRANGE', [key, String(start), String(end)], (val) => Array.isArray(val) ? val.map(String) : []);
        return this;
    }
    lrange(key, start, end) {
        this.addCommand('LRANGE', [key, String(start), String(end)], (val) => Array.isArray(val) ? val.map(String) : []);
        return this;
    }
    llen(key) {
        this.addCommand('LLEN', [key]);
        return this;
    }
    del(...keys) {
        if (keys.length > 0) {
            this.addCommand('DEL', keys);
        }
        return this;
    }
    runCommand(name, args) {
        const script = this.scripts.get(name);
        if (!script) {
            throw new Error(`BullMQ: unknown command "${name}" in transaction`);
        }
        const commandArgs = normalizeScriptArgs(args);
        const { sha, numberOfKeys } = script;
        const cmdKeys = commandArgs.slice(0, numberOfKeys).map(String);
        const argv = commandArgs.slice(numberOfKeys).map((a) => {
            if (Buffer.isBuffer(a)) {
                return a;
            }
            if (a === undefined || a === null) {
                return '';
            }
            return String(a);
        });
        // Use EVALSHA for performance. The script is loaded server-side
        // via SCRIPT LOAD in exec() before any commands are sent.
        this.scriptsToLoad.push(script);
        this.addCommand('EVALSHA', [
            sha,
            String(cmdKeys.length),
            ...cmdKeys,
            ...argv,
        ]);
        return this;
    }
    async exec() {
        if (this.commands.length === 0) {
            return [];
        }
        // Make sure any Lua scripts referenced via EVALSHA are loaded on the
        // server before we send EVALSHA inside the pipeline / MULTI block.
        if (this.scriptsToLoad.length > 0) {
            await this.adapter.ensureScriptsLoaded(this.scriptsToLoad);
        }
        if (!this.transactional) {
            // Fire all commands concurrently for implicit pipelining (like ioredis).
            // This ensures all commands are written to the socket together, preventing
            // other operations from interleaving between pipeline commands.
            const settled = await Promise.allSettled(this.commands.map(({ cmd, args }) => this.adapter.sendCommand(cmd, args)));
            return settled.map((result, i) => {
                if (result.status === 'rejected') {
                    return [result.reason, null];
                }
                const transformer = this.transformers[i];
                const value = transformer ? transformer(result.value) : result.value;
                return [null, value];
            });
        }
        // Execute as a pipelined MULTI/EXEC block. Redis supports multiple
        // MULTI/EXEC blocks pipelined on the same connection — each MULTI starts
        // a new transaction context and EXEC commits it, responses arrive in
        // order. We fire MULTI + all commands + EXEC synchronously (no await
        // between them) so they're written to the socket buffer as one contiguous
        // burst with no opportunity for interleaving from other async contexts.
        //
        // The MULTI and per-command `send()` calls are intentionally fire-and-
        // forget for performance, but their returned promises must still have a
        // rejection handler attached to avoid Bun emitting "unhandled promise
        // rejection" warnings if the connection drops or Redis returns an error
        // reply before we reach EXEC. The actual failure is reported through the
        // awaited EXEC promise (which Redis rejects in the same situations), or
        // bubbles up via the surrounding `try/catch`.
        const swallow = (_) => {
            /* error surfaces via EXEC or the outer try/catch */
        };
        try {
            // Fire MULTI without awaiting — no round-trip needed before commands.
            this.raw.send('MULTI', []).catch(swallow);
            // Fire all queued commands synchronously (no awaits).
            for (const { cmd, args } of this.commands) {
                this.raw.send(cmd, args).catch(swallow);
            }
            // EXEC is the only await — it returns the array of results.
            const results = await this.raw.send('EXEC', []);
            if (!results) {
                return null;
            }
            // Normalize to ioredis format: [Error | null, value][]
            return results.map((result, i) => {
                if (result instanceof Error) {
                    return [result, null];
                }
                const transformer = this.transformers[i];
                const value = transformer ? transformer(result) : result;
                return [null, value];
            });
        }
        catch (err) {
            // Try to discard the MULTI state on error
            try {
                await this.raw.send('DISCARD', []);
            }
            catch (_a) {
                // ignore
            }
            throw err;
        }
    }
}