safeer-pdf-generator/dist/esm/integrations/localfs/LocalFsWriter.js

Framework-agnostic PDF generation library with chunking, merging, S3 upload, and email delivery

import { promises as fs } from 'fs';
import * as path from 'path';
import { LocalFsError } from '../../core/errors.js';
import { sanitizeFilename } from '../../utils/guards.js';
import { noOpLogger } from '../../config/defaults.js';
/**
 * Writes generated PDFs to the local filesystem.
 * Composes with `s3`, `email`, and `webhook` integrations.
 */
export class LocalFsWriter {
    constructor(config, logger = noOpLogger) {
        this.config = config;
        this.logger = logger;
    }
    async write(buffer, defaultFilename) {
        const filename = sanitizeFilename(this.config.filename || defaultFilename);
        const targetDir = path.resolve(this.config.path);
        const targetPath = path.join(targetDir, filename);
        const createDir = this.config.createDir !== false;
        const overwrite = this.config.overwrite !== false;
        if (createDir) {
            try {
                await fs.mkdir(targetDir, { recursive: true });
            }
            catch (error) {
                throw new LocalFsError(`Failed to create directory: ${targetDir}`, targetDir, error);
            }
        }
        if (!overwrite) {
            const exists = await fs.access(targetPath).then(() => true, () => false);
            if (exists) {
                throw new LocalFsError(`File already exists and overwrite=false: ${targetPath}`, targetPath);
            }
        }
        try {
            await fs.writeFile(targetPath, buffer);
            this.logger.info(`Wrote PDF to ${targetPath} (${(buffer.length / 1024 / 1024).toFixed(2)}MB)`);
            return { path: targetPath, sizeBytes: buffer.length };
        }
        catch (error) {
            throw new LocalFsError(`Failed to write file: ${error instanceof Error ? error.message : 'Unknown error'}`, targetPath, error);
        }
    }
}
export function createLocalFsWriter(config, logger) {
    return new LocalFsWriter(config, logger);
}
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