package scaffold.commands

import com.github.ajalt.clikt.core.CliktCommand
import com.github.ajalt.clikt.core.ProgramResult
import com.github.ajalt.clikt.parameters.arguments.argument
import scaffold.Generators
import java.nio.file.Files

class NewCommand(private val generators: Generators) : CliktCommand("new") {
    private val name by argument()

    override fun run() {
        val root = generators.configDirectory.resolve(name)

        if (Files.exists(root)) {
            echo("Generator already exists")
            throw ProgramResult(1)
        }

        Files.createDirectories(root)

        fun resource(path: String) = javaClass.getResource("/$path").readText()

        Files.writeString(root.resolve("index.js"), resource("init/index.js"))
        Files.writeString(root.resolve("index.d.ts"), resource("init/index.d.ts"))

        val tree = root.resolve("tree")
        Files.createDirectory(tree)

        Files.writeString(tree.resolve("README.md"), resource("init/README.md"))

        echo("Generator created in $root")
    }
}