// Использует Image Magick для автоматической перекраски текстур

const fs = require('fs')
const root_main = './src/main/resources/assets/overdrive_that_matters/textures/'
const child_process = require('child_process')

const args = process.argv.slice(2)

if (args.length == 0) {
	console.error('No texture(s) names specified.')
	process.exit(2)
}

const colors = [
	['orange', [245, 116, 16]],
	['magenta', [186, 63, 175]],
	['light_blue', [59, 180, 219]],
	['yellow', [252, 199, 36]],
	['lime', [111, 187, 24]],
	['pink', [243, 139, 170]],
	['gray', [62, 66, 70]],
	['light_gray', [140, 140, 131]],
	['cyan', [22, 134, 145]],
	['purple', [116, 38, 169]],
	['blue', [51, 53, 155]],
	['brown', [114, 71, 40]],
	['green', [84, 109, 28]],
	['red', [156, 37, 34]],
	['black', [31, 31, 35]],
]

process.stderr.setMaxListeners(40)
process.stdout.setMaxListeners(40)

for (const texture of args) {
	if (!fs.existsSync(`${root_main}${texture}.png`)) {
		process.stderr.write(`${texture}.png does not exist\n`)
		continue
	}

	const splitted = texture.split('/')
	const last = splitted.pop()
	const combined = splitted.join('/')

	const basedir = `${root_main}${combined}`

	for (const color of colors) {
		(async function() {
			const identify = child_process.spawn('magick', [
				'identify',
				`${root_main}${texture}.png`,
			])

			identify.stderr.pipe(process.stderr)

			const chunks = []
			identify.stdout.on('data', (a) => chunks.push(a))

			await new Promise((resolve) => {
				identify.on('close', () => resolve())
			})

			const chunk = chunks[0].toString('utf-8')
			const size = chunk.match(/PNG ([0-9]+)x([0-9]+)/)
			const width = parseInt(size[1])
			const height = parseInt(size[2])

			const name = color[0]
			const rgb = color[1]
			const magick = child_process.spawn('magick', [
				'convert',
				`${root_main}${texture}.png`,
				'-size', `${width}x${height}`,
				`xc:rgb(${rgb[0]}, ${rgb[1]}, ${rgb[2]})`,
				'-compose', 'Multiply',
				'-composite',
				//'-layers', 'merge',
				`${basedir}/${last.replace(/_colorless/, '').replace(/_white/, '')}_${name}.png`])

			magick.stdout.pipe(process.stdout)
			magick.stderr.pipe(process.stderr)
		})()
	}
}