package tools

import (
	"os"
	"path/filepath"
	"slices"
	"testing"
)

func TestLess(t *testing.T) {
	tests := []struct {
		a, b string
		ok   bool
	}{
		{"2.1.104", "2.1.105", true},
		{"2.1.105", "2.1.105", false},
		{"2.10.0", "2.9.9", false},
		{"1.2.9", "1.2.11", true},
	}
	for _, tt := range tests {
		if Less(tt.a, tt.b) != tt.ok {
			t.Errorf("Kleiner(%s, %s) != %v", tt.a, tt.b, tt.ok)
		}
	}
}

func TestTarget(t *testing.T) {
	for version, target := range map[string]string{"1.19.3": "opencode@1", "2.0.1": "opencode@2", "": "opencode@1"} {
		if got := Target("opencode", version); got != target {
			t.Errorf("Ziel(opencode, %q) = %s", version, got)
		}
	}
}

func TestInRepo(t *testing.T) {
	repo := t.TempDir()
	if got := InRepo(repo); !slices.Equal(got, []string{"claude", "opencode"}) {
		t.Errorf("leeres Repo: %v", got)
	}
	os.WriteFile(filepath.Join(repo, "CLAUDE.md"), nil, 0o644)
	if got := InRepo(repo); !slices.Equal(got, []string{"claude"}) {
		t.Errorf("nur CLAUDE.md: %v", got)
	}
}