import { existsSync, readFileSync } from 'node:fs';
import { arch, cpus, homedir, platform, totalmem } from 'node:os';
import { join } from 'node:path';
import { z } from 'zod';
import { runtimeVersion } from "../../node-compat/runtime-info.js";
import { createSubcommand } from "../../types.js";
import { getLatestLogSession } from "../../internal-logger.js";
import * as tui from "../../tui.js";
import { getVersion, getPackageName } from "../../version.js";
import { getAuth } from "../../config.js";
import { getExecutingAgent } from "../../agent-detection.js";
const argsSchema = z.object({});
const optionsSchema = z.object({});
/**
 * Format bytes to human-readable string
 */
function formatBytes(bytes) {
    const units = ['B', 'KB', 'MB', 'GB', 'TB'];
    let size = bytes;
    let unitIndex = 0;
    while (size >= 1024 && unitIndex < units.length - 1) {
        size /= 1024;
        unitIndex++;
    }
    return `${size.toFixed(2)} ${units[unitIndex]}`;
}
/**
 * Get user ID from latest session
 */
function getUserId() {
    const sessionDir = getLatestLogSession();
    if (!sessionDir) {
        return null;
    }
    const sessionFile = join(sessionDir, 'session.json');
    if (!existsSync(sessionFile)) {
        return null;
    }
    try {
        const sessionData = JSON.parse(readFileSync(sessionFile, 'utf-8'));
        return sessionData.userId || null;
    }
    catch {
        return null;
    }
}
export default createSubcommand({
    name: 'system',
    description: 'Display system information for support',
    schema: {
        args: argsSchema,
        options: optionsSchema,
    },
    handler: async (ctx) => {
        const isJsonMode = ctx.options.json;
        // Get userId from auth (keychain or config)
        let userId = 'not authenticated';
        try {
            const auth = await getAuth();
            if (auth?.userId) {
                userId = auth.userId;
            }
        }
        catch {
            // If that fails, try from session
            const sessionUserId = getUserId();
            if (sessionUserId) {
                userId = sessionUserId;
            }
        }
        // Get detected agent (if any)
        const detectedAgent = getExecutingAgent();
        // Gather system information
        const systemInfo = {
            cli: {
                name: getPackageName(),
                version: getVersion(),
            },
            bun: {
                path: process.execPath || 'unknown',
                version: runtimeVersion(),
            },
            system: {
                platform: platform(),
                arch: arch(),
                cpus: cpus().length,
                memory: totalmem(),
                memoryFormatted: formatBytes(totalmem()),
            },
            paths: {
                cwd: process.cwd(),
                home: homedir(),
                configDir: join(homedir(), '.config', 'agentuity'),
            },
            user: {
                userId: userId,
            },
            agent: detectedAgent || null,
        };
        if (isJsonMode) {
            tui.json(systemInfo);
        }
        else {
            // Display in vertical table format
            tui.info(tui.bold('System Information'));
            tui.newline();
            // Flatten the data for table display
            const tableData = [
                { Property: 'CLI Name', Value: systemInfo.cli.name },
                { Property: 'CLI Version', Value: systemInfo.cli.version },
                { Property: 'Bun Path', Value: systemInfo.bun.path },
                { Property: 'Bun Version', Value: systemInfo.bun.version },
                { Property: 'Platform', Value: systemInfo.system.platform },
                { Property: 'Architecture', Value: systemInfo.system.arch },
                { Property: 'CPUs', Value: String(systemInfo.system.cpus) },
                { Property: 'Memory', Value: systemInfo.system.memoryFormatted },
                { Property: 'Home Directory', Value: systemInfo.paths.home },
                { Property: 'Config Directory', Value: systemInfo.paths.configDir },
                { Property: 'User ID', Value: systemInfo.user.userId },
                { Property: 'Detected Agent', Value: systemInfo.agent || 'none' },
            ];
            tui.table(tableData, ['Property', 'Value'], { layout: 'vertical' });
        }
    },
});
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