generate

#!/bin/bash

if [[ $# != 1 ]]; then
  echo "Usage: generate packagename"
  exit 1
fi

package="$1"
basedir="$(dirname "$0")/${package}"
day="$(echo "${package}" | tr -d -c 0-9)"
main="$(tr '[a-z]' '[A-Z]' <<< ${package:0:1})${package:1}"
mkdir -p "${basedir}"
touch "${basedir}/input.example.txt" "${basedir}/input.actual.txt"
cat > "${basedir}/${package}.kt" <<EOKOTLIN
// Copyright 2021 Google LLC
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT.
package ${package}

import kotlin.time.ExperimentalTime
import kotlin.time.TimeSource
import kotlin.time.measureTimedValue

object Part1 {
  fun solve(input: Sequence<String>): String {
    return TODO("Implement part 1")
  }
}

object Part2 {
  fun solve(input: Sequence<String>): String {
    return TODO("Implement part 2")
  }
}

@ExperimentalTime
@Suppress("UNUSED_PARAMETER")
fun main(args: Array<String>) {
  val lines = generateSequence(::readLine).toList()
  println("Part 1:")
  TimeSource.Monotonic.measureTimedValue { Part1.solve(lines.asSequence()) }.let {
    println(it.value)
    println("Completed in \${it.duration}")
  }
  println("Part 2:")
  TimeSource.Monotonic.measureTimedValue { Part2.solve(lines.asSequence()) }.let {
    println(it.value)
    println("Completed in \${it.duration}")
  }
}
EOKOTLIN
cat > "${basedir}/Makefile" <<EOBUILD
# Copyright 2021 Google LLC
#
# Use of this source code is governed by an MIT-style
# license that can be found in the LICENSE file or at
# https://opensource.org/licenses/MIT.

# https://adventofcode.com/2020/day/${day}

KOTLIN = kotlin
KOTLINC = kotlinc
CLASSES = classes
PACKAGE = ${package}
MAIN_CLASS = ${main}Kt

compile: \$(CLASSES)/\$(PACKAGE)/\$(MAIN_CLASS).class

\$(CLASSES)/\$(PACKAGE)/\$(MAIN_CLASS).class: \$(PACKAGE).kt
	@mkdir -p \$(CLASSES)
	\$(KOTLINC) -d \$(CLASSES) \$(PACKAGE).kt

output.%.txt: input.%.txt compile
	\$(KOTLIN) -cp \$(CLASSES) \$(PACKAGE).\$(MAIN_CLASS) < \$< | tee \$@

out: output.example.txt output.actual.txt

clean:
	rm -r \$(CLASSES)
EOBUILD