import { z } from 'zod';
import { basename } from 'path';
import { createCommand } from '../../../types';
import * as tui from '../../../tui';
import { createStorageAdapter } from './util';
import { getCommand } from '../../../command-prefix';
import { getDefaultRegion } from '../../../config';
const StreamCreateResponseSchema = z.object({
    id: z.string().describe('Stream ID'),
    namespace: z.string().describe('Stream namespace'),
    url: z.string().describe('Public URL'),
    sizeBytes: z.number().describe('Size in bytes'),
    metadata: z.record(z.string(), z.string()).describe('Stream metadata'),
    expiresAt: z.string().optional().describe('Expiration timestamp'),
});
export const createSubcommand = createCommand({
    name: 'create',
    aliases: ['new'],
    description: 'Create a new stream and upload content',
    tags: ['mutating', 'creates-resource', 'slow', 'requires-auth', 'uses-stdin'],
    requires: { auth: true },
    optional: { project: true, region: true, org: true },
    idempotent: false,
    examples: [
        {
            command: getCommand('cloud stream create memory-share ./notes.md'),
            description: 'Create stream from file',
        },
        {
            command: getCommand('cloud stream create memory-share ./data.json --content-type application/json'),
            description: 'Create stream with explicit content type',
        },
        {
            command: `cat summary.md | ${getCommand('cloud stream create memory-share -')}`,
            description: 'Create stream from stdin',
        },
        {
            command: getCommand('cloud stream create memory-share ./notes.md --ttl 3600'),
            description: 'Create stream with 1 hour TTL',
        },
        {
            command: getCommand('cloud stream create memory-share ./notes.md --metadata type=summary,source=session'),
            description: 'Create stream with metadata',
        },
        {
            command: getCommand('cloud stream create memory-share ./large.json --compress'),
            description: 'Create compressed stream',
        },
    ],
    schema: {
        args: z.object({
            namespace: z.string().min(1).max(254).describe('Stream namespace (1-254 characters)'),
            filename: z.string().describe('File path to upload or "-" for STDIN'),
        }),
        options: z.object({
            metadata: z
                .string()
                .optional()
                .describe('Metadata key=value pairs (comma-separated: key1=value1,key2=value2)'),
            contentType: z
                .string()
                .optional()
                .describe('Content type (auto-detected from extension if not provided)'),
            compress: z.boolean().optional().describe('Enable gzip compression'),
            ttl: z.coerce
                .number()
                .optional()
                .describe('TTL in seconds (60-7776000, or 0/null for never expires)'),
        }),
        response: StreamCreateResponseSchema,
    },
    webUrl: '/services/stream',
    async handler(ctx) {
        const { args, opts, options, config } = ctx;
        const started = Date.now();
        // Resolve region from config if not provided
        const region = ctx.region ?? (await getDefaultRegion(config?.name, config));
        const storage = await createStorageAdapter({ ...ctx, region });
        // Parse metadata if provided
        let metadata;
        if (opts.metadata) {
            const validPairs = {};
            const malformed = [];
            const pairs = opts.metadata.split(',');
            for (const pair of pairs) {
                const trimmedPair = pair.trim();
                if (!trimmedPair)
                    continue;
                const firstEqualIdx = trimmedPair.indexOf('=');
                if (firstEqualIdx === -1) {
                    malformed.push(trimmedPair);
                    continue;
                }
                const key = trimmedPair.substring(0, firstEqualIdx).trim();
                const value = trimmedPair.substring(firstEqualIdx + 1).trim();
                if (!key || !value) {
                    malformed.push(trimmedPair);
                    continue;
                }
                validPairs[key] = value;
            }
            if (malformed.length > 0) {
                ctx.logger.warn(`Skipping malformed metadata pairs: ${malformed.join(', ')}`);
            }
            if (Object.keys(validPairs).length > 0) {
                metadata = validPairs;
            }
        }
        // Determine content type
        let contentType = opts.contentType;
        if (!contentType) {
            // Auto-detect from filename extension
            const filename = args.filename === '-' ? 'stdin' : args.filename;
            const dotIndex = filename.lastIndexOf('.');
            const ext = dotIndex > 0 ? filename.substring(dotIndex + 1).toLowerCase() : undefined;
            // Text-based types should include charset=utf-8 for proper browser rendering
            const mimeTypes = {
                txt: 'text/plain; charset=utf-8',
                md: 'text/markdown; charset=utf-8',
                html: 'text/html; charset=utf-8',
                css: 'text/css; charset=utf-8',
                yaml: 'application/x-yaml; charset=utf-8',
                yml: 'application/x-yaml; charset=utf-8',
                js: 'application/javascript; charset=utf-8',
                ts: 'application/typescript; charset=utf-8',
                json: 'application/json; charset=utf-8',
                xml: 'application/xml; charset=utf-8',
                pdf: 'application/pdf',
                zip: 'application/zip',
                jpg: 'image/jpeg',
                jpeg: 'image/jpeg',
                png: 'image/png',
                gif: 'image/gif',
                svg: 'image/svg+xml; charset=utf-8',
                mp4: 'video/mp4',
                mp3: 'audio/mpeg',
            };
            contentType = ext ? mimeTypes[ext] : 'application/octet-stream';
        }
        // Create the stream
        const stream = await storage.create(args.namespace, {
            metadata,
            contentType,
            compress: opts.compress ? true : undefined,
            ttl: opts.ttl,
        });
        // Read and write content
        let inputStream;
        if (args.filename === '-') {
            // Stream from STDIN
            inputStream = Bun.stdin.stream();
        }
        else {
            // Stream from file
            const file = Bun.file(args.filename);
            if (!(await file.exists())) {
                tui.fatal(`File not found: ${args.filename}`);
            }
            inputStream = file.stream();
        }
        // Write content to stream in chunks
        const reader = inputStream.getReader();
        const MAX_CHUNK_SIZE = 5 * 1024 * 1024; // 5MB max per write
        try {
            while (true) {
                const { done, value } = await reader.read();
                if (done)
                    break;
                // If chunk is larger than 5MB, split it
                if (value.length > MAX_CHUNK_SIZE) {
                    let offset = 0;
                    while (offset < value.length) {
                        const chunk = value.slice(offset, offset + MAX_CHUNK_SIZE);
                        await stream.write(chunk);
                        offset += MAX_CHUNK_SIZE;
                    }
                }
                else {
                    await stream.write(value);
                }
            }
        }
        finally {
            reader.releaseLock();
        }
        // Close the stream
        await stream.close();
        const durationMs = Date.now() - started;
        const sizeBytes = stream.bytesWritten;
        // Get stream info to retrieve expiresAt
        let expiresAt;
        try {
            const info = await storage.get(stream.id);
            expiresAt = info.expiresAt;
        }
        catch {
            // expiresAt is optional, ignore errors
        }
        if (!options.json) {
            const sourceLabel = args.filename === '-' ? 'stdin' : basename(args.filename);
            console.log(`Namespace: ${tui.bold(args.namespace)}`);
            console.log(`ID:        ${stream.id}`);
            console.log(`Size:      ${tui.formatBytes(sizeBytes)}`);
            console.log(`URL:       ${tui.link(stream.url)}`);
            if (expiresAt) {
                console.log(`Expires:   ${expiresAt}`);
            }
            if (metadata && Object.keys(metadata).length > 0) {
                console.log(`Metadata:`);
                for (const [key, value] of Object.entries(metadata)) {
                    console.log(`  ${key}: ${value}`);
                }
            }
            if (opts.compress) {
                console.log(`Compressed: yes`);
            }
            tui.success(`created stream from ${sourceLabel} in ${durationMs.toFixed(1)}ms`);
        }
        return {
            id: stream.id,
            namespace: args.namespace,
            url: stream.url,
            sizeBytes,
            metadata: metadata ?? {},
            expiresAt,
        };
    },
});
export default createSubcommand;
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