package cli_test

import (
	"strings"
	"testing"

	"git.eeqj.de/sneak/secret/internal/cli"
	"git.eeqj.de/sneak/secret/internal/secret"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

// usageHeading starts the usage text cobra prints after an error.
const usageHeading = "Usage:"

// A command called wrongly gets usage after its error; a command that
// fails while running gets its error alone. Either way the command fails
// and its error is shown exactly once.
//
//nolint:paralleltest // executes the CLI in-process and sets the environment
func TestUsageOnlyForCallErrors(t *testing.T) {
	// No vault in the state directory, so `get x` fails while running.
	env := map[string]string{secret.EnvStateDir: t.TempDir()}

	tests := []struct {
		call      string
		wantUsage bool
	}{
		{call: "get", wantUsage: true},
		{call: "get x y", wantUsage: true},
		{call: "get --no-such-flag x", wantUsage: true},
		{call: "generate secret x --length abc", wantUsage: true},
		{call: "import x", wantUsage: true},
		{call: "get x", wantUsage: false},
	}

	for _, tt := range tests {
		output, err := cli.ExecuteCommandInProcess(strings.Fields(tt.call), "", env)
		require.Error(t, err, "%q should fail", tt.call)

		assert.Equal(t, 1, strings.Count(output, err.Error()),
			"%q should show its error once:\n%s", tt.call, output)
		assert.Equal(t, tt.wantUsage, strings.Contains(output, usageHeading),
			"usage shown for %q:\n%s", tt.call, output)
	}
}