package adventoc2024

import (
	"fmt"
	"io"
	"strings"
	"testing"
)

func dup(input string) (io.Reader, io.Reader) {
	return strings.NewReader(input), strings.NewReader(input)
}

type puzzle interface {
	Part1(io.Reader) string
	Part2(io.Reader) string
}

func TestPuzzles(t *testing.T) {
	tests := []struct {
		solver puzzle
		ans1   string
		ans2   string
		input  string
	}{

		{
			solver: Day1{},
			ans1:   "11",
			ans2:   "31",
			input: `3   4
4   3
2   5
1   3
3   9
3   3`,
		},
		{
			solver: Day2{},
			ans1:   "2",
			ans2:   "4",
			input: `7 6 4 2 1
1 2 7 8 9
9 7 6 2 1
1 3 2 4 5
8 6 4 4 1
1 3 6 7 9`,
		},
	}

	for i, tt := range tests {
		name := fmt.Sprintf("Day%d", i+1)
		t.Run(name, func(t *testing.T) {
			p1, p2 := dup(tt.input)
			if got := tt.solver.Part1(p1); got != tt.ans1 {
				t.Errorf("Part 1 = %s; expected %s", got, tt.ans1)
			}

			if got := tt.solver.Part2(p2); got != tt.ans2 {
				t.Errorf("Part 2 = %s; expected %s", got, tt.ans2)
			}
		})
	}

}