import metadata from '../monkey.config'

const paddingLength = 1 + Object.keys(metadata).reduce((prev, curr) => (curr.length > prev ? curr.length : prev), 0)

const prefix = (arr: string[]): string[] => {

const newArr = arr.map((it) => `// ${it}`)

newArr.push('')

return newArr

}

const wrapMeta = (arr: string[]): string[] => arr.map((it) => (it.length ? `@${it}` : it))

const sign = (arr: string[]): string[] => {

arr.push('==/UserScript==')

return ['==UserScript=='].concat(arr)

}

export default (dev: boolean = false): string => {

const metas: string[] = []

if (dev) {

if (!metadata.require) metadata.require = []

metadata.require.push('file://' + __dirname + '\\build\\' + metadata.name.toLowerCase().replace(' ', '-') + '.user.js')

}

for (const [key, value] of Object.entries(metadata)) {

if (Array.isArray(value) && value.length) {

metas.push('')

for (const element of value) metas.push(key.padEnd(paddingLength) + element)

} else metas.push(key.padEnd(paddingLength) + value)

}

return prefix(sign(wrapMeta(metas))).join('\n')

}