package bonfire

import (
	"bytes"
	"errors"
	"os"
	"path/filepath"
	"strings"
	"testing"
)

// TestWrongDirectoryHintSmoke: an application binary failing below its
// application root (no config/ here, summer.yaml in a parent) gets the
// "cd <rel>; bin/<name> <args>" hint; summer, a directory with config/ and
// a usage error do not.
func TestWrongDirectoryHintSmoke(t *testing.T) {
	root := t.TempDir()
	if err := os.WriteFile(filepath.Join(root, "summer.yaml"), []byte("binary: acme\n"), 0o644); err != nil {
		t.Fatal(err)
	}
	sub := filepath.Join(root, "plugins", "acme")
	if err := os.MkdirAll(sub, 0o755); err != nil {
		t.Fatal(err)
	}
	if err := os.MkdirAll(filepath.Join(root, "config"), 0o755); err != nil {
		t.Fatal(err)
	}
	fail := errors.New("lagoon: database.dsn is empty")

	got := wrongDirectory("acme", fail, []string{"migrate", "--plugin", "acme blog"}, sub)
	var hint *HintError
	if !errors.As(got, &hint) || hint.Explanation != wrongDirectoryExplanation ||
		hint.Try != "cd ../..; {bin} migrate --plugin 'acme blog'" || !errors.Is(got, fail) {
		t.Fatalf("hint = %#v", got)
	}
	var buf bytes.Buffer
	RenderError(&buf, "acme", got, Globals{Color: ColorNever})
	if !strings.Contains(buf.String(), "cd ../..; bin/acme migrate --plugin 'acme blog'") {
		t.Fatalf("rendered block lacks the Try line:\n%s", buf.String())
	}

	for name, tc := range map[string]struct {
		name string
		err  error
		dir  string
	}{
		"summer":       {"summer", fail, sub},
		"app root":     {"acme", fail, root},
		"usage error":  {"acme", Usage(fail), sub},
		"reported":     {"acme", Reported(fail), sub},
		"no app above": {"acme", fail, t.TempDir()},
	} {
		if got := wrongDirectory(tc.name, tc.err, []string{"migrate"}, tc.dir); errors.As(got, &hint) && hint.Explanation == wrongDirectoryExplanation {
			t.Errorf("%s: unexpected hint %#v", name, got)
		}
	}
}