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refactoring

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Resolve #7779
This commit is contained in:
syuilo 2021-11-12 02:02:25 +09:00
parent 037837b551
commit 0e4a111f81
1714 changed files with 20803 additions and 11751 deletions
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107
src/services/drive/image-processor.ts
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@ -1,107 +0,0 @@
import * as sharp from 'sharp';
export type IImage = {
data: Buffer;
ext: string | null;
type: string;
};
/**
* Convert to JPEG
* with resize, remove metadata, resolve orientation, stop animation
*/
export async function convertToJpeg(path: string, width: number, height: number): Promise<IImage> {
return convertSharpToJpeg(await sharp(path), width, height);
}
export async function convertSharpToJpeg(sharp: sharp.Sharp, width: number, height: number): Promise<IImage> {
const data = await sharp
.resize(width, height, {
fit: 'inside',
withoutEnlargement: true
})
.rotate()
.jpeg({
quality: 85,
progressive: true
})
.toBuffer();
return {
data,
ext: 'jpg',
type: 'image/jpeg'
};
}
/**
* Convert to WebP
* with resize, remove metadata, resolve orientation, stop animation
*/
export async function convertToWebp(path: string, width: number, height: number): Promise<IImage> {
return convertSharpToWebp(await sharp(path), width, height);
}
export async function convertSharpToWebp(sharp: sharp.Sharp, width: number, height: number): Promise<IImage> {
const data = await sharp
.resize(width, height, {
fit: 'inside',
withoutEnlargement: true
})
.rotate()
.webp({
quality: 85
})
.toBuffer();
return {
data,
ext: 'webp',
type: 'image/webp'
};
}
/**
* Convert to PNG
* with resize, remove metadata, resolve orientation, stop animation
*/
export async function convertToPng(path: string, width: number, height: number): Promise<IImage> {
return convertSharpToPng(await sharp(path), width, height);
}
export async function convertSharpToPng(sharp: sharp.Sharp, width: number, height: number): Promise<IImage> {
const data = await sharp
.resize(width, height, {
fit: 'inside',
withoutEnlargement: true
})
.rotate()
.png()
.toBuffer();
return {
data,
ext: 'png',
type: 'image/png'
};
}
/**
* Convert to PNG or JPEG
* with resize, remove metadata, resolve orientation, stop animation
*/
export async function convertToPngOrJpeg(path: string, width: number, height: number): Promise<IImage> {
return convertSharpToPngOrJpeg(await sharp(path), width, height);
}
export async function convertSharpToPngOrJpeg(sharp: sharp.Sharp, width: number, height: number): Promise<IImage> {
const stats = await sharp.stats();
const metadata = await sharp.metadata();
// 不透明で300x300pxの範囲を超えていればJPEG
if (stats.isOpaque && ((metadata.width && metadata.width >= 300) || (metadata.height && metadata!.height >= 300))) {
return await convertSharpToJpeg(sharp, width, height);
} else {
return await convertSharpToPng(sharp, width, height);
}
}