import { path as pathModule } from '../path'
import { AsyncFileSystem, FileSystem } from '../fs'
import * as JSON5 from 'json5'

export async function readJsonAsync(path: string, filename: string, fs: AsyncFileSystem) {
    const filePath = pathModule.resolve(path, filename)
    try {
        const jsonString = await fs.readFile(filePath, { encoding: 'utf8' })
        return JSON5.parse(jsonString)
    } catch (e) {
        return {}
    }
}

export default function readJson(path: string, filename: string, fs: FileSystem) {
    const filePath = pathModule.resolve(path, filename)

    try {
        return JSON5.parse(fs.readFileSync(filePath, { encoding: 'utf-8' }))
    } catch (e) {
        throw new Error(`Failed to parse JSON file: ${filePath} (Reason: ${e instanceof Error ? e.message : e})`)
    }
}