packages/cli/src/run-command-core.ts

import { randomUUID } from 'node:crypto';
import { realpath, stat } from 'node:fs/promises';
import { resolve } from 'node:path';
import type { SessionEvent } from '@maka/core';
import { isThinkingLevel, type ThinkingLevel } from '@maka/core';
import type { CreateSessionInput, UserMessageInput } from '@maka/core';
import type { ExecutionBoundaryReadModel } from '@maka/core';
import type { SessionSummary } from '@maka/core';
import { normalizeUserSessionName } from '@maka/core';
import { selectMakaRunSession } from './run-session-selection.js';
import { sessionEventSandboxBoundaryFailureReason } from './sandbox-boundary-failure.js';
import { resolveMakaWorkspaceRoot } from './workspace-root.js';

export interface MakaRunOptions {
  prompt?: string;
  stdinPrompt: boolean;
  cwd?: string;
  connection?: string;
  model?: string;
  thinking?: ThinkingLevel;
  timeoutMs?: number;
  maxSteps?: number;
  yolo?: boolean;
  resumeId?: string;
  continueLatest?: boolean;
  graph?: true;
  thinkingDefaultExplicit?: boolean;
}

export type ParseMakaRunArgsResult =
  | { kind: 'run'; options: MakaRunOptions }
  | { kind: 'help' }
  | { kind: 'error'; message: string };

export interface MakaRunRuntime {
  createSession(input: CreateSessionInput): Promise<SessionSummary>;
  readExecutionBoundary(sessionId: string): Promise<ExecutionBoundaryReadModel>;
  sendMessage(sessionId: string, input: UserMessageInput): AsyncIterable<SessionEvent>;
  respondToSandboxBoundary(
    sessionId: string,
    response: { requestId: string; decision: 'deny' },
  ): Promise<void>;
  stopSession(sessionId: string, input?: { source?: 'stop_button' }): Promise<void>;
  setExecutionBoundaryKind(sessionId: string, kind: 'managed' | 'bypass'): Promise<unknown>;
  resumeLatest?(sessionId: string): Promise<AsyncIterable<SessionEvent> | null>;
}

export interface MakaRunContext {
  runtime: MakaRunRuntime;
  target: { connection: { slug: string }; model: string };
  agentGraph?: {
    reserveActivity(sessionId: string): { release(): void };
    waitForCompletion(sessionId: string): Promise<void>;
  };
  close(): Promise<void>;
}

export interface MakaRunOutcome {
  outcomeId: string;
  status: 'completed' | 'failed';
  finalOutput?: string;
  failure?: { class: string; message?: string };
  sandboxBoundary: 'none' | 'unresolved' | 'recovered';
}

export interface MakaRunContextInput {
  surface: 'run' | 'activation';
  workspaceRoot: string;
  cwd: string;
  requestedConnectionSlug?: string;
  requestedModel?: string;
  maxSteps?: number;
  enableAgentGraph?: boolean;
  sessionCwdOverride?: { sessionId: string; cwd: string };
  runOutcomeObserver?: (outcome: MakaRunOutcome) => void | Promise<void>;
}

export interface MakaRunDeps {
  createContext(input: MakaRunContextInput): Promise<MakaRunContext>;
  listSessions(workspaceRoot: string): Promise<SessionSummary[]>;
  workspaceRoot(): string;
  processCwd(): string;
  stdinIsTTY(): boolean;
  readStdin(): Promise<string>;
  writeStdout(text: string): void;
  writeStderr(text: string): void;
  onSigint(handler: () => void): () => void;
  setTimer(handler: () => void, ms: number): unknown;
  clearTimer(timer: unknown): void;
  newId(): string;
}

export type MakaRunAdapter = Pick<MakaRunDeps, 'createContext' | 'listSessions'>;
export type MakaRunEnvironmentDeps = Omit<MakaRunDeps, keyof MakaRunAdapter>;

const VALUE_FLAGS = new Set([
  'cwd',
  'connection',
  'model',
  'thinking',
  'timeout',
  'max-steps',
  'resume',
]);

const REPEATABLE_VALUE_FLAGS = new Set<string>();
const BOOLEAN_FLAGS = new Set(['continue', 'yolo', 'graph']);

export function parseMakaRunArgs(argv: readonly string[]): ParseMakaRunArgsResult {
  const positional: string[] = [];
  const flags = new Map<string, string>();
  const booleanFlags = new Set<string>();
  let literal = false;
  for (let index = 0; index < argv.length; index += 1) {
    const arg = argv[index]!;
    if (!literal && (arg === '--help' || arg === '-h')) return { kind: 'help' };
    if (!literal && arg === '--') {
      literal = true;
      continue;
    }
    if (!literal && arg.startsWith('--')) {
      const name = arg.slice(2);
      if (BOOLEAN_FLAGS.has(name)) {
        if (booleanFlags.has(name)) return { kind: 'error', message: `option repeated: ${arg}` };
        booleanFlags.add(name);
        continue;
      }
      if (!VALUE_FLAGS.has(name)) return { kind: 'error', message: `unknown option: ${arg}` };
      if (!REPEATABLE_VALUE_FLAGS.has(name) && flags.has(name)) {
        return { kind: 'error', message: `option repeated: ${arg}` };
      }
      const value = argv[index + 1];
      if (value === undefined || value.startsWith('--')) {
        return { kind: 'error', message: `option ${arg} needs a value` };
      }
      flags.set(name, value);
      index += 1;
      continue;
    }
    if (!literal && arg.startsWith('-') && arg !== '-') {
      return { kind: 'error', message: `unknown option: ${arg}` };
    }
    positional.push(arg);
  }

  if (positional.length > 1) {
    return { kind: 'error', message: 'maka run accepts at most one positional prompt' };
  }
  const prompt = positional[0];
  const timeout = flags.get('timeout');
  const maxSteps = flags.get('max-steps');
  const thinking = flags.get('thinking');
  const resumeId = flags.get('resume');
  const continueLatest = booleanFlags.has('continue');
  const graph = booleanFlags.has('graph');
  if (resumeId !== undefined && continueLatest) {
    return { kind: 'error', message: '--resume and --continue cannot be used together' };
  }
  const timeoutSeconds = timeout === undefined ? undefined : Number(timeout);
  if (timeoutSeconds !== undefined && (!Number.isFinite(timeoutSeconds) || timeoutSeconds <= 0)) {
    return { kind: 'error', message: '--timeout must be a positive number of seconds' };
  }
  const parsedMaxSteps = maxSteps === undefined ? undefined : Number(maxSteps);
  if (parsedMaxSteps !== undefined && (!Number.isInteger(parsedMaxSteps) || parsedMaxSteps < 1)) {
    return { kind: 'error', message: '--max-steps must be a positive integer' };
  }
  if (thinking !== undefined && thinking !== 'default' && !isThinkingLevel(thinking)) {
    return { kind: 'error', message: `unknown thinking level: ${thinking}` };
  }
  return {
    kind: 'run',
    options: {
      ...(prompt !== undefined && prompt !== '-' ? { prompt } : {}),
      stdinPrompt: prompt === '-',
      ...(flags.get('cwd') !== undefined ? { cwd: flags.get('cwd') } : {}),
      ...(flags.get('connection') !== undefined ? { connection: flags.get('connection') } : {}),
      ...(flags.get('model') !== undefined ? { model: flags.get('model') } : {}),
      ...(thinking !== undefined && thinking !== 'default' ? { thinking } : {}),
      ...(timeoutSeconds !== undefined ? { timeoutMs: Math.ceil(timeoutSeconds * 1_000) } : {}),
      ...(parsedMaxSteps !== undefined ? { maxSteps: parsedMaxSteps } : {}),
      ...(booleanFlags.has('yolo') ? { yolo: true } : {}),
      ...(resumeId !== undefined ? { resumeId } : {}),
      ...(continueLatest ? { continueLatest: true } : {}),
      ...(graph ? { graph: true as const } : {}),
      ...(thinking === 'default' ? { thinkingDefaultExplicit: true } : {}),
    },
  };
}

export async function runMakaTextCliCore(
  argv: readonly string[],
  adapter: MakaRunAdapter,
  overrides: Partial<MakaRunEnvironmentDeps> = {},
): Promise<number> {
  const deps: MakaRunDeps = { ...defaultMakaRunEnvironmentDeps(), ...adapter, ...overrides };
  const parsed = parseMakaRunArgs(argv);
  if (parsed.kind === 'help') {
    deps.writeStdout(`${makaRunHelpText()}\n`);
    return 0;
  }
  if (parsed.kind === 'error') {
    deps.writeStderr(`maka run: ${parsed.message}\n\n${makaRunHelpText()}\n`);
    return 2;
  }

  let prompt: string;
  let selection: Awaited<ReturnType<typeof selectMakaRunSession>>;
  const workspaceRoot = deps.workspaceRoot();
  try {
    prompt = await resolveRunPrompt(parsed.options, deps);
    const sessions =
      parsed.options.resumeId !== undefined || parsed.options.continueLatest === true
        ? await deps.listSessions(workspaceRoot)
        : [];
    selection = await selectMakaRunSession(
      {
        sessions,
        ...(parsed.options.resumeId !== undefined ? { resumeId: parsed.options.resumeId } : {}),
        continueLatest: parsed.options.continueLatest === true,
        ...(parsed.options.cwd !== undefined ? { explicitCwd: parsed.options.cwd } : {}),
        processCwd: deps.processCwd(),
        ...(parsed.options.connection !== undefined
          ? { explicitConnection: parsed.options.connection }
          : {}),
        ...(parsed.options.model !== undefined ? { explicitModel: parsed.options.model } : {}),
        thinkingSpecified:
          parsed.options.thinking !== undefined || parsed.options.thinkingDefaultExplicit === true,
        ...(parsed.options.thinking !== undefined
          ? { explicitThinking: parsed.options.thinking }
          : {}),
      },
      { canonicalizeDirectory: canonicalDirectory },
    );
  } catch (error) {
    deps.writeStderr(`maka run: ${errorMessage(error)}\n`);
    return 2;
  }

  let outcome: MakaRunOutcome | undefined;
  let streamBoundaryFailure = false;
  const boundaryFailureInvocationIds = new Set<string>();
  let context: MakaRunContext;
  try {
    context = await deps.createContext({
      surface: 'run',
      workspaceRoot,
      cwd: selection.cwd,
      ...(selection.kind === 'existing' || parsed.options.connection
        ? {
            requestedConnectionSlug:
              selection.kind === 'existing'
                ? selection.session.llmConnectionSlug
                : parsed.options.connection,
          }
        : {}),
      ...(selection.kind === 'existing' || parsed.options.model
        ? {
            requestedModel:
              selection.kind === 'existing' ? selection.session.model : parsed.options.model,
          }
        : {}),
      ...(selection.kind === 'existing'
        ? { sessionCwdOverride: { sessionId: selection.session.id, cwd: selection.cwd } }
        : {}),
      ...(parsed.options.maxSteps !== undefined ? { maxSteps: parsed.options.maxSteps } : {}),
      ...(parsed.options.graph ? { enableAgentGraph: true } : {}),
      runOutcomeObserver: (result) => {
        if (result.sandboxBoundary === 'recovered') {
          boundaryFailureInvocationIds.delete(result.outcomeId);
        } else if (result.sandboxBoundary === 'unresolved') {
          boundaryFailureInvocationIds.add(result.outcomeId);
        }
        outcome = result;
      },
    });
  } catch (error) {
    deps.writeStderr(`maka run: ${errorMessage(error)}\n`);
    return 2;
  }

  let session: SessionSummary;
  try {
    session =
      selection.kind === 'existing'
        ? selection.session
        : await context.runtime.createSession({
            cwd: selection.cwd,
            name: makaRunSessionName(prompt),
            backend: 'ai-sdk',
            llmConnectionSlug: context.target.connection.slug,
            model: context.target.model,
            permissionMode: parsed.options.yolo ? 'bypass' : 'ask',
            ...(parsed.options.thinking !== undefined
              ? { thinkingLevel: parsed.options.thinking }
              : {}),
          });
    if (selection.kind === 'existing') {
      const boundary = await context.runtime.readExecutionBoundary(session.id);
      if (parsed.options.yolo) {
        await context.runtime.setExecutionBoundaryKind(session.id, 'bypass');
      } else if (boundary.kind === 'bypass') {
        throw new Error(`resuming a full-access session ${session.id} requires --yolo`);
      } else if (boundary.kind === 'external') {
        throw new Error(`cannot resume externally isolated session ${session.id} from maka run`);
      }
    }
  } catch (error) {
    await context.close();
    deps.writeStderr(`maka run: ${errorMessage(error)}\n`);
    return 2;
  }

  let interrupted = false;
  let timedOut = false;
  let streamFailed = false;
  let stopPromise: Promise<void> | undefined;
  let resolveStopSignal: (() => void) | undefined;
  const stopSignal = new Promise<void>((resolve) => {
    resolveStopSignal = resolve;
  });
  const stop = (): void => {
    resolveStopSignal?.();
    resolveStopSignal = undefined;
    if (stopPromise) return;
    stopPromise = context.runtime.stopSession(session.id, { source: 'stop_button' });
    void stopPromise.catch(() => {});
  };
  const removeSigint = deps.onSigint(() => {
    interrupted = true;
    stop();
  });
  const timer =
    parsed.options.timeoutMs === undefined
      ? undefined
      : deps.setTimer(() => {
          timedOut = true;
          stop();
        }, parsed.options.timeoutMs);
  const graphActivity = parsed.options.graph
    ? context.agentGraph?.reserveActivity(session.id)
    : undefined;

  try {
    if (parsed.options.graph && !context.agentGraph) {
      throw new Error('Graph Mode is unavailable in this CLI runtime');
    }
    for await (const event of context.runtime.sendMessage(session.id, {
      turnId: deps.newId(),
      text: prompt,
      ...(parsed.options.graph
        ? { turnOrchestration: { mode: 'graph' as const, source: 'host_api' as const } }
        : {}),
    })) {
      if (event.type === 'sandbox_boundary_request') {
        streamBoundaryFailure = true;
        deps.writeStderr(
          'maka run: sandbox boundary expansion is unavailable in non-interactive mode\n',
        );
        await context.runtime.respondToSandboxBoundary(session.id, {
          requestId: event.requestId,
          decision: 'deny',
        });
      }
      const sandboxFailureReason = sessionEventSandboxBoundaryFailureReason(event);
      if (sandboxFailureReason) {
        streamBoundaryFailure = true;
        deps.writeStderr(
          sandboxFailureReason === 'requires_bypass'
            ? 'maka run: sandbox bypass requires an explicit --yolo\n'
            : 'maka run: sandbox boundary expansion is unavailable in non-interactive mode\n',
        );
      }
    }
    graphActivity?.release();
    if (parsed.options.graph && outcome?.status === 'completed') {
      await Promise.race([context.agentGraph!.waitForCompletion(session.id), stopSignal]);
    }
    await stopPromise;
  } catch (error) {
    streamFailed = true;
    graphActivity?.release();
    await stopPromise?.catch(() => undefined);
    if (!interrupted && !timedOut) {
      deps.writeStderr(`maka run: ${errorMessage(error)}\n`);
    }
  } finally {
    removeSigint();
    if (timer !== undefined) deps.clearTimer(timer);
    await context.close();
  }

  if (interrupted) return 130;
  if (timedOut) {
    deps.writeStderr(`maka run: timed out after ${parsed.options.timeoutMs}ms\n`);
    return 1;
  }
  if (streamFailed) return 1;
  if (
    (streamBoundaryFailure && outcome?.sandboxBoundary !== 'recovered') ||
    boundaryFailureInvocationIds.size > 0
  ) {
    return 1;
  }
  if (!outcome) {
    deps.writeStderr('maka run: runtime produced no outcome\n');
    return 1;
  }
  if (outcome.status !== 'completed' || outcome.finalOutput === undefined) {
    const detail = outcome.failure?.message ?? outcome.failure?.class ?? 'runtime failure';
    deps.writeStderr(`maka run: ${detail}\n`);
    return 1;
  }
  deps.writeStdout(withTrailingNewline(outcome.finalOutput));
  return 0;
}

async function resolveRunPrompt(options: MakaRunOptions, deps: MakaRunDeps): Promise<string> {
  const shouldReadStdin = options.stdinPrompt || !deps.stdinIsTTY();
  const stdin = shouldReadStdin ? await deps.readStdin() : '';
  if (options.stdinPrompt || options.prompt === undefined) {
    if (stdin.trim().length === 0) throw new Error('missing prompt input');
    return stdin;
  }
  if (options.prompt.trim().length === 0) throw new Error('missing prompt input');
  return stdin.trim().length > 0 ? `${options.prompt}\n\n${stdin}` : options.prompt;
}

async function canonicalDirectory(input: string): Promise<string> {
  const canonical = await realpath(resolve(input));
  if (!(await stat(canonical)).isDirectory()) throw new Error(`cwd is not a directory: ${input}`);
  return canonical;
}

function makaRunHelpText(): string {
  return [
    'Usage: maka run [PROMPT] [options]',
    '       maka -p [PROMPT] [options]',
    '',
    'Input:',
    '  -                         Read the complete prompt from stdin',
    '  PROMPT with piped stdin   Use PROMPT as instruction and stdin as context',
    '',
    'Options:',
    '  --cwd <path>              Working directory (default: current directory)',
    '  --connection <slug>       Model connection to use',
    '  --model <id>              Model to use',
    '  --thinking <level>        off|minimal|low|medium|high|xhigh|max|default',
    '  --timeout <seconds>       Invocation timeout',
    '  --max-steps <count>       Tool-step cap',
    '  --yolo                    Give this session full access to your files and network',
    '  --resume <session-id>     Continue an explicit compatible session',
    '  --continue                Continue the latest compatible session for cwd',
    '  --graph                   Run this turn in Graph Mode and wait for graph completion',
    '  -h, --help                Show help',
  ].join('\n');
}

function defaultMakaRunEnvironmentDeps(): MakaRunEnvironmentDeps {
  return {
    workspaceRoot: () => resolveMakaWorkspaceRoot(),
    processCwd: () => process.cwd(),
    stdinIsTTY: () => process.stdin.isTTY === true,
    readStdin: readProcessStdin,
    writeStdout: (text) => {
      process.stdout.write(text);
    },
    writeStderr: (text) => {
      process.stderr.write(text);
    },
    onSigint: (handler) => {
      process.on('SIGINT', handler);
      return () => process.off('SIGINT', handler);
    },
    setTimer: (handler, ms) => {
      const timer = setTimeout(handler, ms);
      timer.unref();
      return timer;
    },
    clearTimer: (timer) => clearTimeout(timer as ReturnType<typeof setTimeout>),
    newId: randomUUID,
  };
}

async function readProcessStdin(): Promise<string> {
  const chunks: Buffer[] = [];
  for await (const chunk of process.stdin) {
    chunks.push(Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk));
  }
  return Buffer.concat(chunks).toString('utf8');
}

function firstLine(text: string): string {
  return (
    text
      .split('\n')
      .map((line) => line.trim())
      .find(Boolean) ?? ''
  );
}

function makaRunSessionName(prompt: string): string {
  const normalized = normalizeUserSessionName(firstLine(prompt).slice(0, 42));
  return normalized.ok ? normalized.value : 'Maka run';
}

function withTrailingNewline(text: string): string {
  return text.endsWith('\n') ? text : `${text}\n`;
}

function errorMessage(error: unknown): string {
  return error instanceof Error ? error.message : String(error);
}