/**
 * Main entry point for the coding agent CLI.
 *
 * This file handles CLI argument parsing and translates them into
 * createAgentSession() options. The SDK does the heavy lifting.
 */
import { resolve } from "node:path";
import { createInterface } from "node:readline";
import { modelsAreEqual, supportsXhigh } from "@eminent337/aery-ai";
import { ProcessTerminal, setKeybindings, TUI } from "@eminent337/aery-tui";
import chalk from "chalk";
import { parseArgs, printHelp } from "./cli/args.js";
import { runCapabilitiesCommand } from "./cli/capabilities.js";
import { runDoctorCommand } from "./cli/doctor.js";
import { processFileArguments } from "./cli/file-processor.js";
import { buildInitialMessage } from "./cli/initial-message.js";
import { listModels } from "./cli/list-models.js";
import { selectSession } from "./cli/session-picker.js";
import { getAgentDir, VERSION } from "./config.js";
import { createAgentSessionRuntime } from "./core/agent-session-runtime.js";
import { createAgentSessionFromServices, createAgentSessionServices, } from "./core/agent-session-services.js";
import { formatNoModelsAvailableMessage } from "./core/auth-guidance.js";
import { AuthStorage } from "./core/auth-storage.js";
import { exportFromFile } from "./core/export-html/index.js";
import { KeybindingsManager } from "./core/keybindings.js";
import { resolveCliModel, resolveModelScope } from "./core/model-resolver.js";
import { restoreStdout, takeOverStdout } from "./core/output-guard.js";
import { formatMissingSessionCwdPrompt, getMissingSessionCwdIssue, MissingSessionCwdError, } from "./core/session-cwd.js";
import { SessionManager } from "./core/session-manager.js";
import { SettingsManager } from "./core/settings-manager.js";
import { printTimings, resetTimings, time } from "./core/timings.js";
import { ensureCoreExtensions, formatCoreExtensionAttentionMessage, runMigrations, showDeprecationWarnings, } from "./migrations.js";
import { InteractiveMode, runPrintMode, runRpcMode } from "./modes/index.js";
import { ExtensionSelectorComponent } from "./modes/interactive/components/extension-selector.js";
import { initTheme, stopThemeWatcher } from "./modes/interactive/theme/theme.js";
import { handleConfigCommand, handlePackageCommand } from "./package-manager-cli.js";
import { isLocalPath } from "./utils/paths.js";
/**
 * Read all content from piped stdin.
 * Returns undefined if stdin is a TTY (interactive terminal).
 */
async function readPipedStdin() {
    // If stdin is a TTY, we're running interactively - don't read stdin
    if (process.stdin.isTTY) {
        return undefined;
    }
    return new Promise((resolve) => {
        let data = "";
        process.stdin.setEncoding("utf8");
        process.stdin.on("data", (chunk) => {
            data += chunk;
        });
        process.stdin.on("end", () => {
            resolve(data.trim() || undefined);
        });
        process.stdin.resume();
    });
}
function collectSettingsDiagnostics(settingsManager, context) {
    return settingsManager.drainErrors().map(({ scope, error }) => ({
        type: "warning",
        message: `(${context}, ${scope} settings) ${error.message}`,
    }));
}
function reportDiagnostics(diagnostics) {
    for (const diagnostic of diagnostics) {
        const color = diagnostic.type === "error" ? chalk.red : diagnostic.type === "warning" ? chalk.yellow : chalk.dim;
        const prefix = diagnostic.type === "error" ? "Error: " : diagnostic.type === "warning" ? "Warning: " : "";
        console.error(color(`${prefix}${diagnostic.message}`));
    }
}
function isTruthyEnvFlag(value) {
    if (!value)
        return false;
    return value === "1" || value.toLowerCase() === "true" || value.toLowerCase() === "yes";
}
function resolveAppMode(parsed, stdinIsTTY) {
    if (parsed.mode === "rpc") {
        return "rpc";
    }
    if (parsed.mode === "json") {
        return "json";
    }
    if (parsed.print || !stdinIsTTY) {
        return "print";
    }
    return "interactive";
}
function toPrintOutputMode(appMode) {
    return appMode === "json" ? "json" : "text";
}
async function prepareInitialMessage(parsed, autoResizeImages, stdinContent) {
    if (parsed.fileArgs.length === 0) {
        return buildInitialMessage({ parsed, stdinContent });
    }
    const { text, images } = await processFileArguments(parsed.fileArgs, { autoResizeImages });
    return buildInitialMessage({
        parsed,
        fileText: text,
        fileImages: images,
        stdinContent,
    });
}
/**
 * Resolve a session argument to a file path.
 * If it looks like a path, use as-is. Otherwise try to match as session ID prefix.
 */
async function resolveSessionPath(sessionArg, cwd, sessionDir) {
    // If it looks like a file path, use as-is
    if (sessionArg.includes("/") || sessionArg.includes("\\") || sessionArg.endsWith(".jsonl")) {
        return { type: "path", path: sessionArg };
    }
    // Try to match as session ID in current project first
    const localSessions = await SessionManager.list(cwd, sessionDir);
    const localMatches = localSessions.filter((s) => s.id.startsWith(sessionArg));
    if (localMatches.length >= 1) {
        return { type: "local", path: localMatches[0].path };
    }
    // Try global search across all projects
    const allSessions = await SessionManager.listAll();
    const globalMatches = allSessions.filter((s) => s.id.startsWith(sessionArg));
    if (globalMatches.length >= 1) {
        const match = globalMatches[0];
        return { type: "global", path: match.path, cwd: match.cwd };
    }
    // Not found anywhere
    return { type: "not_found", arg: sessionArg };
}
/** Prompt user for yes/no confirmation */
async function promptConfirm(message) {
    return new Promise((resolve) => {
        const rl = createInterface({
            input: process.stdin,
            output: process.stdout,
        });
        rl.question(`${message} [y/N] `, (answer) => {
            rl.close();
            resolve(answer.toLowerCase() === "y" || answer.toLowerCase() === "yes");
        });
    });
}
function validateForkFlags(parsed) {
    if (!parsed.fork)
        return;
    const conflictingFlags = [
        parsed.session ? "--session" : undefined,
        parsed.continue ? "--continue" : undefined,
        parsed.resume ? "--resume" : undefined,
        parsed.noSession ? "--no-session" : undefined,
    ].filter((flag) => flag !== undefined);
    if (conflictingFlags.length > 0) {
        console.error(chalk.red(`Error: --fork cannot be combined with ${conflictingFlags.join(", ")}`));
        process.exit(1);
    }
}
function forkSessionOrExit(sourcePath, cwd, sessionDir) {
    try {
        return SessionManager.forkFrom(sourcePath, cwd, sessionDir);
    }
    catch (error) {
        const message = error instanceof Error ? error.message : String(error);
        console.error(chalk.red(`Error: ${message}`));
        process.exit(1);
    }
}
async function createSessionManager(parsed, cwd, sessionDir, settingsManager) {
    if (parsed.noSession) {
        return SessionManager.inMemory();
    }
    if (parsed.fork) {
        const resolved = await resolveSessionPath(parsed.fork, cwd, sessionDir);
        switch (resolved.type) {
            case "path":
            case "local":
            case "global":
                return forkSessionOrExit(resolved.path, cwd, sessionDir);
            case "not_found":
                console.error(chalk.red(`No session found matching '${resolved.arg}'`));
                process.exit(1);
        }
    }
    if (parsed.session) {
        const resolved = await resolveSessionPath(parsed.session, cwd, sessionDir);
        switch (resolved.type) {
            case "path":
            case "local":
                return SessionManager.open(resolved.path, sessionDir);
            case "global": {
                console.log(chalk.yellow(`Session found in different project: ${resolved.cwd}`));
                const shouldFork = await promptConfirm("Fork this session into current directory?");
                if (!shouldFork) {
                    console.log(chalk.dim("Aborted."));
                    process.exit(0);
                }
                return forkSessionOrExit(resolved.path, cwd, sessionDir);
            }
            case "not_found":
                console.error(chalk.red(`No session found matching '${resolved.arg}'`));
                process.exit(1);
        }
    }
    if (parsed.resume) {
        initTheme(settingsManager.getTheme(), true);
        try {
            const selectedPath = await selectSession((onProgress) => SessionManager.list(cwd, sessionDir, onProgress), SessionManager.listAll);
            if (!selectedPath) {
                console.log(chalk.dim("No session selected"));
                process.exit(0);
            }
            return SessionManager.open(selectedPath, sessionDir);
        }
        finally {
            stopThemeWatcher();
        }
    }
    if (parsed.continue) {
        return SessionManager.continueRecent(cwd, sessionDir);
    }
    return SessionManager.create(cwd, sessionDir);
}
function buildSessionOptions(parsed, scopedModels, hasExistingSession, modelRegistry, settingsManager) {
    const options = {};
    const diagnostics = [];
    let cliThinkingFromModel = false;
    // Model from CLI
    // - supports --provider <name> --model <pattern>
    // - supports --model <provider>/<pattern>
    if (parsed.model) {
        const resolved = resolveCliModel({
            cliProvider: parsed.provider,
            cliModel: parsed.model,
            modelRegistry,
        });
        if (resolved.warning) {
            diagnostics.push({ type: "warning", message: resolved.warning });
        }
        if (resolved.error) {
            diagnostics.push({ type: "error", message: resolved.error });
        }
        if (resolved.model) {
            options.model = resolved.model;
            // Allow "--model <pattern>:<thinking>" as a shorthand.
            // Explicit --thinking still takes precedence (applied later).
            if (!parsed.thinking && resolved.thinkingLevel) {
                options.thinkingLevel = resolved.thinkingLevel;
                cliThinkingFromModel = true;
            }
        }
    }
    if (!options.model && scopedModels.length > 0 && !hasExistingSession) {
        // Check if saved default is in scoped models - use it if so, otherwise first scoped model
        const savedProvider = settingsManager.getDefaultProvider();
        const savedModelId = settingsManager.getDefaultModel();
        const savedModel = savedProvider && savedModelId ? modelRegistry.find(savedProvider, savedModelId) : undefined;
        const savedInScope = savedModel ? scopedModels.find((sm) => modelsAreEqual(sm.model, savedModel)) : undefined;
        if (savedInScope) {
            options.model = savedInScope.model;
            // Use thinking level from scoped model config if explicitly set
            if (!parsed.thinking && savedInScope.thinkingLevel) {
                options.thinkingLevel = savedInScope.thinkingLevel;
            }
        }
        else {
            options.model = scopedModels[0].model;
            // Use thinking level from first scoped model if explicitly set
            if (!parsed.thinking && scopedModels[0].thinkingLevel) {
                options.thinkingLevel = scopedModels[0].thinkingLevel;
            }
        }
    }
    // Thinking level from CLI (takes precedence over scoped model thinking levels set above)
    if (parsed.thinking) {
        options.thinkingLevel = parsed.thinking;
    }
    // Scoped models for Ctrl+P cycling
    // Keep thinking level undefined when not explicitly set in the model pattern.
    // Undefined means "inherit current session thinking level" during cycling.
    if (scopedModels.length > 0) {
        options.scopedModels = scopedModels.map((sm) => ({
            model: sm.model,
            thinkingLevel: sm.thinkingLevel,
        }));
    }
    // API key from CLI - set in authStorage
    // (handled by caller before createAgentSession)
    // Tools
    if (parsed.noTools) {
        options.noTools = "all";
    }
    else if (parsed.noBuiltinTools) {
        options.noTools = "builtin";
    }
    if (parsed.tools) {
        options.tools = [...parsed.tools];
    }
    return { options, cliThinkingFromModel, diagnostics };
}
function resolveCliPaths(cwd, paths) {
    return paths?.map((value) => (isLocalPath(value) ? resolve(cwd, value) : value));
}
async function promptForMissingSessionCwd(issue, settingsManager) {
    initTheme(settingsManager.getTheme());
    setKeybindings(KeybindingsManager.create());
    return new Promise((resolve) => {
        const ui = new TUI(new ProcessTerminal(), settingsManager.getShowHardwareCursor());
        ui.setClearOnShrink(settingsManager.getClearOnShrink());
        let settled = false;
        const finish = (result) => {
            if (settled) {
                return;
            }
            settled = true;
            ui.stop();
            resolve(result);
        };
        const selector = new ExtensionSelectorComponent(formatMissingSessionCwdPrompt(issue), ["Continue", "Cancel"], (option) => finish(option === "Continue" ? issue.fallbackCwd : undefined), () => finish(undefined), { tui: ui });
        ui.addChild(selector);
        ui.setFocus(selector);
        ui.start();
    });
}
export async function main(args, options) {
    resetTimings();
    const offlineMode = args.includes("--offline") || isTruthyEnvFlag(process.env.AERY_OFFLINE);
    if (offlineMode) {
        process.env.AERY_OFFLINE = "1";
        process.env.AERY_SKIP_VERSION_CHECK = "1";
    }
    if (await handlePackageCommand(args)) {
        return;
    }
    if (await handleConfigCommand(args)) {
        return;
    }
    if (await runDoctorCommand(args)) {
        return;
    }
    const parsed = parseArgs(args);
    if (parsed.diagnostics.length > 0) {
        for (const d of parsed.diagnostics) {
            const color = d.type === "error" ? chalk.red : chalk.yellow;
            console.error(color(`${d.type === "error" ? "Error" : "Warning"}: ${d.message}`));
        }
        if (parsed.diagnostics.some((d) => d.type === "error")) {
            process.exit(1);
        }
    }
    time("parseArgs");
    let appMode = resolveAppMode(parsed, process.stdin.isTTY);
    const shouldTakeOverStdout = appMode !== "interactive";
    if (shouldTakeOverStdout) {
        takeOverStdout();
    }
    if (parsed.version) {
        console.log(VERSION);
        process.exit(0);
    }
    if (parsed.export) {
        let result;
        try {
            const outputPath = parsed.messages.length > 0 ? parsed.messages[0] : undefined;
            result = await exportFromFile(parsed.export, outputPath);
        }
        catch (error) {
            const message = error instanceof Error ? error.message : "Failed to export session";
            console.error(chalk.red(`Error: ${message}`));
            process.exit(1);
        }
        console.log(`Exported to: ${result}`);
        process.exit(0);
    }
    if (parsed.mode === "rpc" && parsed.fileArgs.length > 0) {
        console.error(chalk.red("Error: @file arguments are not supported in RPC mode"));
        process.exit(1);
    }
    validateForkFlags(parsed);
    // Run migrations (pass cwd for project-local migrations)
    const { migratedAuthProviders: migratedProviders, deprecationWarnings } = runMigrations(process.cwd());
    time("runMigrations");
    // Ensure aery-extensions is cloned and core extensions are wired (no-op if already done)
    const coreExtStatus = ensureCoreExtensions();
    time("ensureCoreExtensions");
    const cwd = process.cwd();
    const agentDir = getAgentDir();
    const startupSettingsManager = SettingsManager.create(cwd, agentDir);
    reportDiagnostics(collectSettingsDiagnostics(startupSettingsManager, "startup session lookup"));
    // Decide the final runtime cwd before creating cwd-bound runtime services.
    // --session and --resume may select a session from another project, so project-local
    // settings, resources, provider registrations, and models must be resolved only after
    // the target session cwd is known. The startup-cwd settings manager is used only for
    // sessionDir lookup during session selection.
    const sessionDir = parsed.sessionDir ?? startupSettingsManager.getSessionDir();
    let sessionManager = await createSessionManager(parsed, cwd, sessionDir, startupSettingsManager);
    const missingSessionCwdIssue = getMissingSessionCwdIssue(sessionManager, cwd);
    if (missingSessionCwdIssue) {
        if (appMode === "interactive") {
            const selectedCwd = await promptForMissingSessionCwd(missingSessionCwdIssue, startupSettingsManager);
            if (!selectedCwd) {
                process.exit(0);
            }
            sessionManager = SessionManager.open(missingSessionCwdIssue.sessionFile, sessionDir, selectedCwd);
        }
        else {
            console.error(chalk.red(new MissingSessionCwdError(missingSessionCwdIssue).message));
            process.exit(1);
        }
    }
    time("createSessionManager");
    const resolvedExtensionPaths = resolveCliPaths(cwd, parsed.extensions);
    const resolvedSkillPaths = resolveCliPaths(cwd, parsed.skills);
    const resolvedPromptTemplatePaths = resolveCliPaths(cwd, parsed.promptTemplates);
    const resolvedThemePaths = resolveCliPaths(cwd, parsed.themes);
    const authStorage = AuthStorage.create();
    const createRuntime = async ({ cwd, agentDir, sessionManager, sessionStartEvent, }) => {
        const services = await createAgentSessionServices({
            cwd,
            agentDir,
            authStorage,
            extensionFlagValues: parsed.unknownFlags,
            resourceLoaderOptions: {
                additionalExtensionPaths: resolvedExtensionPaths,
                additionalSkillPaths: resolvedSkillPaths,
                additionalPromptTemplatePaths: resolvedPromptTemplatePaths,
                additionalThemePaths: resolvedThemePaths,
                noExtensions: parsed.noExtensions,
                noSkills: parsed.noSkills,
                noPromptTemplates: parsed.noPromptTemplates,
                noThemes: parsed.noThemes,
                noContextFiles: parsed.noContextFiles,
                systemPrompt: parsed.systemPrompt,
                appendSystemPrompt: parsed.appendSystemPrompt,
                extensionFactories: options?.extensionFactories,
            },
        });
        const { settingsManager, modelRegistry, resourceLoader } = services;
        const diagnostics = [
            ...services.diagnostics,
            ...collectSettingsDiagnostics(settingsManager, "runtime creation"),
            ...resourceLoader.getExtensions().errors.map(({ path, error }) => ({
                type: "error",
                message: `Failed to load extension "${path}": ${error}`,
            })),
        ];
        const modelPatterns = parsed.models ?? settingsManager.getEnabledModels();
        const scopedModels = modelPatterns && modelPatterns.length > 0 ? await resolveModelScope(modelPatterns, modelRegistry) : [];
        const { options: sessionOptions, cliThinkingFromModel, diagnostics: sessionOptionDiagnostics, } = buildSessionOptions(parsed, scopedModels, sessionManager.buildSessionContext().messages.length > 0, modelRegistry, settingsManager);
        diagnostics.push(...sessionOptionDiagnostics);
        if (parsed.apiKey) {
            if (!sessionOptions.model) {
                diagnostics.push({
                    type: "error",
                    message: "--api-key requires a model to be specified via --model, --provider/--model, or --models",
                });
            }
            else {
                authStorage.setRuntimeApiKey(sessionOptions.model.provider, parsed.apiKey);
            }
        }
        const created = await createAgentSessionFromServices({
            services,
            sessionManager,
            sessionStartEvent,
            model: sessionOptions.model,
            thinkingLevel: sessionOptions.thinkingLevel,
            scopedModels: sessionOptions.scopedModels,
            tools: sessionOptions.tools,
            noTools: sessionOptions.noTools,
            customTools: sessionOptions.customTools,
        });
        const cliThinkingOverride = parsed.thinking !== undefined || cliThinkingFromModel;
        if (created.session.model && cliThinkingOverride) {
            let effectiveThinking = created.session.thinkingLevel;
            if (!created.session.model.reasoning) {
                effectiveThinking = "off";
            }
            else if (effectiveThinking === "xhigh" && !supportsXhigh(created.session.model)) {
                effectiveThinking = "high";
            }
            if (effectiveThinking !== created.session.thinkingLevel) {
                created.session.setThinkingLevel(effectiveThinking);
            }
        }
        return {
            ...created,
            services,
            diagnostics,
        };
    };
    time("createRuntime");
    const runtime = await createAgentSessionRuntime(createRuntime, {
        cwd: sessionManager.getCwd(),
        agentDir,
        sessionManager,
    });
    const { services, session, modelFallbackMessage } = runtime;
    const { settingsManager, modelRegistry, resourceLoader } = services;
    if (await runCapabilitiesCommand(args, { session, services })) {
        process.exit(0);
    }
    if (parsed.help) {
        const extensionFlags = resourceLoader
            .getExtensions()
            .extensions.flatMap((extension) => Array.from(extension.flags.values()));
        printHelp(extensionFlags);
        process.exit(0);
    }
    if (parsed.listModels !== undefined) {
        const searchPattern = typeof parsed.listModels === "string" ? parsed.listModels : undefined;
        await listModels(modelRegistry, searchPattern);
        process.exit(0);
    }
    // Read piped stdin content (if any) - skip for RPC mode which uses stdin for JSON-RPC
    let stdinContent;
    if (appMode !== "rpc") {
        stdinContent = await readPipedStdin();
        if (stdinContent !== undefined && appMode === "interactive") {
            appMode = "print";
        }
    }
    time("readPipedStdin");
    const { initialMessage, initialImages } = await prepareInitialMessage(parsed, settingsManager.getImageAutoResize(), stdinContent);
    time("prepareInitialMessage");
    initTheme(settingsManager.getTheme(), appMode === "interactive");
    time("initTheme");
    // Show deprecation warnings in interactive mode
    if (appMode === "interactive" && deprecationWarnings.length > 0) {
        await showDeprecationWarnings(deprecationWarnings);
    }
    if (appMode === "interactive") {
        const coreExtensionAttentionMessage = formatCoreExtensionAttentionMessage(coreExtStatus);
        if (coreExtensionAttentionMessage) {
            console.log(chalk.yellow(coreExtensionAttentionMessage));
        }
    }
    const scopedModels = [...session.scopedModels];
    time("resolveModelScope");
    reportDiagnostics(runtime.diagnostics);
    if (runtime.diagnostics.some((diagnostic) => diagnostic.type === "error")) {
        process.exit(1);
    }
    time("createAgentSession");
    if (appMode !== "interactive" && !session.model) {
        console.error(chalk.red(formatNoModelsAvailableMessage()));
        process.exit(1);
    }
    const startupBenchmark = isTruthyEnvFlag(process.env.AERY_STARTUP_BENCHMARK);
    if (startupBenchmark && appMode !== "interactive") {
        console.error(chalk.red("Error: AERY_STARTUP_BENCHMARK only supports interactive mode"));
        process.exit(1);
    }
    if (appMode === "rpc") {
        printTimings();
        await runRpcMode(runtime);
    }
    else if (appMode === "interactive") {
        if (scopedModels.length > 0 && (parsed.verbose || !settingsManager.getQuietStartup())) {
            const modelList = scopedModels
                .map((sm) => {
                const thinkingStr = sm.thinkingLevel ? `:${sm.thinkingLevel}` : "";
                return `${sm.model.id}${thinkingStr}`;
            })
                .join(", ");
            console.log(chalk.dim(`Model scope: ${modelList} ${chalk.gray("(Ctrl+P to cycle)")}`));
        }
        const interactiveMode = new InteractiveMode(runtime, {
            migratedProviders,
            modelFallbackMessage,
            initialMessage,
            initialImages,
            initialMessages: parsed.messages,
            verbose: parsed.verbose,
        });
        if (startupBenchmark) {
            await interactiveMode.init();
            time("interactiveMode.init");
            printTimings();
            interactiveMode.stop();
            stopThemeWatcher();
            if (process.stdout.writableLength > 0) {
                await new Promise((resolve) => process.stdout.once("drain", resolve));
            }
            if (process.stderr.writableLength > 0) {
                await new Promise((resolve) => process.stderr.once("drain", resolve));
            }
            return;
        }
        printTimings();
        await interactiveMode.run();
    }
    else {
        printTimings();
        const exitCode = await runPrintMode(runtime, {
            mode: toPrintOutputMode(appMode),
            messages: parsed.messages,
            initialMessage,
            initialImages,
        });
        stopThemeWatcher();
        restoreStdout();
        if (exitCode !== 0) {
            process.exitCode = exitCode;
        }
        return;
    }
}
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