47d6fcb6a0
Extend the `processImage` method to support optional resizing with `width` and `height` parameters. Update processing pipeline to handle resizing while maintaining existing format processing for `webp` and `avif`.
56 lines
1.5 KiB
TypeScript
56 lines
1.5 KiB
TypeScript
import { BadRequestException, Injectable, Logger } from "@nestjs/common";
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import sharp from "sharp";
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import type { MediaProcessingResult } from "../../common/interfaces/media.interface";
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import type { IMediaProcessorStrategy } from "./media-processor.strategy";
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@Injectable()
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export class ImageProcessorStrategy implements IMediaProcessorStrategy {
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private readonly logger = new Logger(ImageProcessorStrategy.name);
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canHandle(mimeType: string): boolean {
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return mimeType.startsWith("image/");
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}
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async process(
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buffer: Buffer,
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options: {
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format: "webp" | "avif";
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resize?: { width?: number; height?: number };
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} = { format: "webp" },
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): Promise<MediaProcessingResult> {
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try {
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const { format, resize } = options;
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let pipeline = sharp(buffer);
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if (resize) {
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pipeline = pipeline.resize(resize.width, resize.height, {
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fit: "cover",
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position: "center",
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});
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}
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const metadata = await pipeline.metadata();
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if (format === "webp") {
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pipeline = pipeline.webp({ quality: 80, effort: 6 });
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} else {
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pipeline = pipeline.avif({ quality: 65, effort: 6 });
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}
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const processedBuffer = await pipeline.toBuffer();
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return {
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buffer: processedBuffer,
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mimeType: `image/${format}`,
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extension: format,
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width: metadata.width,
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height: metadata.height,
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size: processedBuffer.length,
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};
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} catch (error) {
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this.logger.error(`Error processing image: ${error.message}`);
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throw new BadRequestException("Failed to process image");
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}
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}
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}
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