import sharp from 'sharp'
async function addTextOnImage(text, buf) {
    try {
        let img = await sharp(buf)

        const metadata = await img.metadata()

        const width = metadata.width
        const height = metadata.height

        const svgImage = `
        <svg width="${width}" height="${height}">
        <style>
        .title { fill: #001; font-size: 30px; font-weight: bold;}
        </style>
        <text x="50%" y="50%" text-anchor="middle" class="title">${text}</text>
        </svg>
        `

        return await img
            .composite([
                {
                    input: Buffer.from(svgImage),
                    top: 0,
                    left: 0,
                },
            ])
            .webp({ effort: 6 })
            .toBuffer()
    } catch (error) {
        console.log(error)
    }
}

export const setup = function (router, con, server) {
    router.get('/api/getFileIcon/:icon', async function (req, res) {
        let path = req.params.icon
        if (path.length > 4) {
            res.status(410).json({ error: 'file ending is too long' })
            return
        }
        addTextOnImage(
            path,
            await sharp('./images/empty_file.png').toBuffer()
        ).then((buf) => {
            res.set('content-type', 'image/png')
            res.send(buf)
        })
        /* #swagger.security = [{
            "appTokenAuthHeader": []
        }] */
    })
}