import com.github.gekomad.ittocsv.core.FromCsv._
given IttoCSVFormat = IttoCSVFormat.default

val a: List[Either[String, Double]] = fromCsvL[Double]("1.1,2.1,3.1")
val b: List[Either[String, Double]] = fromCsvL[Double]("1.1,abc,3.1")

assert(a == List(Right(1.1), Right(2.1), Right(3.1)))
assert(b == List(Right(1.1), Left("abc value is not valid Double"), Right(3.1)))

import com.github.gekomad.ittocsv.core.FromCsv._
given IttoCSVFormat = IttoCSVFormat.default

case class Bar(a: String, b: Int)

assert(fromCsv[Bar]("abc,42") == List(Right(Bar("abc", 42))))
assert(fromCsv[Bar]("abc,42\r\nfoo,24") == List(Right(Bar("abc", 42)), Right(Bar("foo", 24))))

case class Foo(v: String, a: List[Int])
assert(fromCsv[Foo]("abc,\"1,2,3\"") == List(Right(Foo("abc", List(1, 2, 3)))))

import com.github.gekomad.ittocsv.parser.IttoCSVFormat
import com.github.gekomad.ittocsv.core.FromCsv._
case class Foo(a: Int, b: java.time.LocalDateTime)

given IttoCSVFormat = IttoCSVFormat.default

val l = fromCsv[Foo]("1,2000-12-31T11:21:19")
assert(l == List(Right(Foo(1, java.time.LocalDateTime.parse("2000-12-31T11:21:19", java.time.format.DateTimeFormatter.ISO_LOCAL_DATE_TIME)))))

import com.github.gekomad.ittocsv.parser.IttoCSVFormat
import com.github.gekomad.ittocsv.core.FromCsv._
import java.time.LocalDateTime
import java.time.format.DateTimeFormatter

case class Foo(a: Int, b: java.time.LocalDateTime)

given csvFormat: IttoCSVFormat = IttoCSVFormat.default

given Decoder[String, LocalDateTime] = (s: String) =>
  scala.util.Try (Right(LocalDateTime.parse(s, DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.0"))))
    .getOrElse(Left(List(s"Not a LocalDataTime $s")))

val l = fromCsv[Foo]("1,2000-12-31 11:21:19.0") // List[Either[NonEmptyList[ParseFailure], Foo]]
assert(l == List(Right(Foo(1, LocalDateTime.parse("2000-12-3111:21:19.0", DateTimeFormatter.ofPattern("yyyy-MM-ddHH:mm:ss.0"))))))