package user

import "testing"

func TestValidateUsername(t *testing.T) {
	cases := []struct {
		name string
		ok   bool
	}{
		{"alice", true},
		{"al-ice_42", true},
		{"a", true},
		{"", false},
		{"-alice", false},
		{"_alice", false},
		{"thisusernameiswaytoolongtobevalid12345", false},
		{"admin", false},
	}
	reserved := []string{"admin", "root"}
	for _, tc := range cases {
		err := ValidateUsername(tc.name, reserved)
		if tc.ok && err != nil {
			t.Errorf("%q expected ok, got %v", tc.name, err)
		}
		if !tc.ok && err == nil {
			t.Errorf("%q expected fail", tc.name)
		}
	}
}

func TestProvisionalUsername(t *testing.T) {
	const pk = "0e8c41ebcd55a8d8db2e0a8c3a4b9c5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c"
	got := ProvisionalUsername(pk)
	want := "u_0e8c41ebcd55a8d8"
	if got != want {
		t.Fatalf("got %q want %q", got, want)
	}
	if err := ValidateUsername(got, nil); err != nil {
		t.Fatalf("provisional name should validate: %v", err)
	}

	short := ProvisionalUsername("AbC")
	if short != "u_abc" {
		t.Errorf("expected lowercase trimmed prefix, got %q", short)
	}
}

func TestSubscriptionType(t *testing.T) {
	if !SubYearly.Valid() || !SubLifetime.Valid() {
		t.Fatal("valid types reported invalid")
	}
	if SubscriptionType("monthly").Valid() {
		t.Fatal("invalid type reported valid")
	}
}