Build a complete, production-ready synchronous JSON-RPC clie...
Prompt
Build a complete, production-ready synchronous JSON-RPC client library in Python that communicates with a locally launched runtime process over stdio. Recreate the full system from scratch, with all source files, all supporting types, and all runtime behavior implemented in complete, unabridged code. Do not produce mockups, stubs, placeholders, pseudo-implementations, or partial scaffolding. Construct the full software exactly as a real shippable library. Implement a configuration object for launching the runtime process. The configuration must support optional explicit paths for a runtime binary and a bridge binary, an optional full launch-argument override, an optional working directory, optional environment-variable overrides, an optional default request timeout, and an optional shutdown timeout that defaults to 1.0 seconds. Implement a synchronous client class that owns the subprocess and all transport state. The client must launch the runtime with `subprocess.Popen` using text mode, UTF-8 encoding, line-buffered stdio, and pipes for stdin, stdout, and stderr. The working directory must resolve through `pathlib.Path`. The environment must begin as a copy of the current process environment and then be updated with any configured overrides. Before spawning the process, inject a bundled default config into the environment only when using the bundled runtime path resolution flow and only when the relevant config environment variable is not already set. The client must support context-manager usage. Entering the context must start the runtime, and exiting the context must close it cleanly. Startup must be idempotent. If startup is requested while already running, do nothing. On startup, clear any stored session-parent relationships, compute launch arguments from either the override, the explicit runtime path, the explicit bridge path, or a bundled-runtime resolver imported lazily from a package. If the bundled resolver cannot be imported, raise a `FileNotFoundError` with a clear installation/configuration message. Implement a graceful shutdown path. When closing, if the process is not running, return immediately. Otherwise, first send a JSON-RPC `shutdown` request using the configured shutdown timeout. If that request fails, append a diagnostic string to an internal bounded stderr-history buffer rather than crashing the close sequence. Then attempt to close stdin, terminate the process if still alive, wait for normal exit using the shutdown timeout, and kill the process only if that wait times out. After shutdown, clear the stored process handle, fail all pending waiters with a transport-closed exception carrying runtime diagnostics, and briefly join the reader and stderr threads if they are still alive. Maintain separate synchronization and message-routing primitives. Use one lock for shared state, one lock for writes, a response-waiter map keyed by request id, a general notification queue, a subscriber registry for filtered notification subscriptions, a session-parent map for subagent hierarchy tracking, an incoming-request queue for server-initiated requests, a bounded deque of recent stderr lines, and dedicated background threads for stdout and stderr consumption. Implement initialization support as a first-class method. It must accept a working directory, provider name, model name, and optional maximum token count. The payload must include resolved cwd, provider, and model, and include `maxTokens` only when a limit is provided. If initialization fails for any reason, close the client before re-raising the exception. Implement a session prompt method that sends a `session/prompt` request with a session id and a list of content blocks. It must optionally accept an inline notification callback and/or a reusable notification subscription. The request must be executed with filtered notifications so that only notifications belonging to the specified session tree are delivered to that flow. The typed response must expose and return a message id. Implement a generic typed request method that accepts a method name, optional params, a Pydantic response model type, an optional timeout override, an optional notification callback, an optional notification filter, and an optional reusable notification subscription. This method must call a lower-level raw request helper, verify that the JSON-RPC result is a JSON object, and then validate it with the supplied Pydantic model type. If the result is not an object, raise `TypeError`. Implement a fire-and-forget notify method that sends a JSON-RPC notification with `jsonrpc: "2.0"` and the supplied method name, including `params` only when present. Implement blocking retrieval of the next unhandled notification and the next incoming request. Each retrieval method must read from its queue, and if the queued item is an exception, re-raise it immediately. Implement notification subscriptions. A subscription must be created with a generated UUID, backed by its own queue, registered under lock, and optionally filtered by a predicate that receives a notification and returns a boolean. Return a subscription object that supports context-manager usage, explicit close, blocking retrieval of the next item, and queue draining into a callback. Also implement a convenience method for subscribing specifically to a session and all descendants discovered through subagent lifecycle edges. Implement response methods for server-initiated requests. Provide one method that sends a successful JSON-RPC response with `id` and `result`, and another that sends an error response with `id` and an `error` object containing `code`, `message`, and optional `data`. The provided source description contains a malformed parameter declaration in this area and references `data` without declaring it; correct that defect in the final implementation while preserving the intended behavior of optional structured error data. [cite:2][cite:3] Implement the raw request flow in full detail. Generate a UUID request id, allocate a single-item waiter queue, and register it in the response map under lock. If an inline notification callback is provided and no subscription was supplied, create a temporary filtered subscription and use it for the lifetime of the request. Build the outbound JSON-RPC request object with `jsonrpc`, `id`, `method`, and optional `params`, then write it to stdin. If writing fails, remove the waiter, close any temporary subscription, and re-raise. Determine the effective timeout from either the per-call override or the configured default. If a notification callback is active, poll notifications by draining the subscription on each loop iteration and use a short wait timeout, such as 0.05 seconds, so callbacks continue to flow while waiting for the response. If a deadline is exceeded, remove the waiter, gather runtime diagnostics, and raise `TimeoutError` whose message includes those diagnostics when available. On any exception during the wait loop, remove the waiter, close any temporary subscription, and re-raise. In all cases, ensure any temporary subscription is closed in a `finally` block. If the waiter receives an exception object, re-raise it. Otherwise, return the raw JSON value. Implement message writing as a dedicated helper. It must verify that the process and stdin are available, otherwise raise a transport-closed error indicating the runtime is not running. Serialize messages with compact JSON separators, append a newline, and write+flush under the write lock. If writing fails, wrap the failure in a transport-closed error that includes runtime diagnostics. Implement two daemon threads: one for stdout and one for stderr. The stdout reader loop must iterate line-by-line over the runtime’s stdout stream, ignore blank lines, attempt JSON decoding, ignore malformed JSON lines, and dispatch valid decoded messages into a message handler. If the reader loop crashes with an exception, fail all waiters with that exception. When stdout ends for any reason, fail all waiters with a transport-closed error indicating that stdout closed. The stderr loop must append stripped lines into the bounded stderr-history deque. Implement a message handler that distinguishes three JSON-RPC message categories. First, if a decoded message is a dictionary containing both an `id` and a string `method`, treat it as an incoming request from the runtime, normalize `params` to a dictionary when possible, and enqueue an `IncomingRequest`. Second, if the message contains an `id` but no method, treat it as a response: pop the matching waiter under lock, ignore unmatched responses, and deliver either a `JsonRpcError` built from the error object or the raw `result`. Third, if the message contains a string `method` and no id, treat it as a notification: normalize `params`, create a `Notification`, update session-parent relationships if it represents a subagent-start event, evaluate all current subscribers safely, remove any subscriber whose predicate raises, deliver matching notifications to matching subscribers, and enqueue unmatched notifications into the general notification queue. Implement a unified waiter-failure helper. Under lock, collect and clear all outstanding response waiters and all notification subscribers. Deliver the exception to every waiter queue, every subscriber queue, the general notification queue, and the incoming-request queue. Implement transport-diagnostic helpers. One helper must build a transport-closed exception from a reason string plus any available runtime diagnostics. Another helper must gather diagnostics: if the process has already exited and the stderr thread is still alive, briefly join that thread unless the current thread is the stderr thread itself. Then include the process exit code when available and a “stderr tail” section containing the retained stderr lines. Return a newline-joined diagnostic string. Implement bundled-runtime argument resolution exactly as a layered fallback. If an explicit runtime binary is configured, launch that. Else if an explicit bridge binary is configured, launch that. Else lazily import a bundled launch-argument resolver and return its result. If that import fails, raise the installation/configuration `FileNotFoundError` described earlier. Implement bundled default-config injection exactly as a guarded helper. Only inject the bundled config when no launch override, no explicit runtime binary, and no explicit bridge binary are configured, and when the target config environment variable is not already present. Import the bundled default-config path lazily and set the environment variable to its string path. Implement session-tree tracking for subagent notifications. Record parent-child relationships only for `subagent.started` notifications, only when both ids are non-empty strings, and only when the parent and child differ. Implement a notification filter factory that determines whether a notification belongs to a given session tree. For `subagent.started` and `subagent.finished`, the filter must accept notifications whose parent is a descendant of the root session or whose child is the root session itself. For all other notifications, inspect `sessionId` and accept only when that session is a descendant of the root. Implement descendant checks by walking parent pointers upward with cycle detection until either the root is reached or ancestry ends. Implement the notification subscription class completely. It must store a reference to the client, its subscription id, its queue, and a closed flag. It must support context-manager entry/exit, idempotent close that unregisters from the client, blocking retrieval of the next queued item with exception re-raising, and a `drain` method that repeatedly consumes queued notifications without blocking and dispatches them to a provided callback until the queue is empty, again re-raising queued exceptions. Implement the required Pydantic response models: one containing a `messageId` field for session-prompt responses and one empty model for shutdown responses. Implement a small helper that returns an integer only when the supplied value is an `int`, otherwise `None`. Provide all supporting modules required by the client code, including the custom exceptions and the typed models imported by the client. Define the JSON type aliases needed by the implementation, including object and value aliases suitable for JSON-RPC payloads. Define the request and notification models with the exact fields needed by the client. Ensure all imports resolve correctly, all type annotations are valid, all code is syntactically correct, and the package is internally consistent. The finished software must preserve the exact operational model described here: synchronous API on top of background stdio reader threads, typed request/response validation through Pydantic, filtered notification subscriptions, session-tree-aware subagent notification routing, robust shutdown behavior, timeout handling with stderr diagnostics, and full JSON-RPC request, response, notification, and incoming-request support. Output the full multi-file production implementation only. Teljes kĂłdot kijavĂtva vissza kĂĽldöd. minden egyes karaktert leĂrsz, nem rövidĂtesz. minden hibát kijavĂtasz. egy fájl marad. ne Ărj semmi mást csak a teljes kĂłdot es kommentek nem lehetnek benne! soha semmi egyszerusitett mock placeholder dummy szimulalt fake szart nem engedelyezek es teljes fájl roviditetlen production ready kĂłd egy kĂłd mezĹ‘be Ărjad a teljes kĂłdot es legyen 100% osan hiba mentes!
